DATAMONGO-1366 - Release version 1.9 M1 (Hopper).

Refactored the query execution out of AbstractMongoQuery into MongoQueryExecution. Made sure the streaming execution lazily applies the projections, too.

Added a DtoInstantiatingConverter to be able to copy data from created entities into DTOs as we cannot hand the DTO type into the MongoTemplate execution in the first place as it's going to be used for the query mapping currently.

.travis.yml

@@ -0,0 +1,22 @@
+language: java
+
+jdk:
+  - oraclejdk8
+
+services:
+  - mongodb
+
+env:
+  matrix:
+    - PROFILE=ci
+    - PROFILE=mongo-next
+
+sudo: false
+
+cache:
+  directories:
+    - $HOME/.m2
+
+install: true
+
+script: "mvn clean dependency:list test -P${PROFILE} -Dsort"

CODE_OF_CONDUCT.adoc

@@ -0,0 +1,27 @@
+= Contributor Code of Conduct
+
+As contributors and maintainers of this project, and in the interest of fostering an open and welcoming community, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free experience for everyone, regardless of level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, ethnicity, age, religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery
+* Personal attacks
+* Trolling or insulting/derogatory comments
+* Public or private harassment
+* Publishing other's private information, such as physical or electronic addresses,
+  without explicit permission
+* Other unethical or unprofessional conduct
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+By adopting this Code of Conduct, project maintainers commit themselves to fairly and consistently applying these principles to every aspect of managing this project. Project maintainers who do not follow or enforce the Code of Conduct may be permanently removed from the project team.
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting a project maintainer at spring-code-of-conduct@pivotal.io.
+All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances.
+Maintainers are obligated to maintain confidentiality with regard to the reporter of an incident.
+
+This Code of Conduct is adapted from the http://contributor-covenant.org[Contributor Covenant], version 1.3.0, available at http://contributor-covenant.org/version/1/3/0/[contributor-covenant.org/version/1/3/0/].

CONTRIBUTING.adoc

@@ -0,0 +1,3 @@
+= Spring Data contribution guidelines
+
+You find the contribution guidelines for Spring Data projects https://github.com/spring-projects/spring-data-build/blob/master/CONTRIBUTING.adoc[here].

README.md

@@ -1,6 +1,6 @@
 # Spring Data MongoDB
 
-The primary goal of the [Spring Data](http://www.springsource.org/spring-data) project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud based data services.
+The primary goal of the [Spring Data](http://projects.spring.io/spring-data) project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud based data services.
 
 The Spring Data MongoDB project aims to provide a familiar and consistent Spring-based programming model for new datastores while retaining store-specific features and capabilities. The Spring Data MongoDB project provides integration with the MongoDB document database. Key functional areas of Spring Data MongoDB are a POJO centric model for interacting with a MongoDB DBCollection and easily writing a repository style data access layer.
 
@@ -8,12 +8,12 @@ The Spring Data MongoDB project aims to provide a familiar and consistent Spring
 
 For a comprehensive treatment of all the Spring Data MongoDB features, please refer to:
 
-* the [User Guide](http://static.springsource.org/spring-data/data-mongodb/docs/current/reference/html/) 
-* the [JavaDocs](http://static.springsource.org/spring-data/data-mongodb/docs/current/api/) have extensive comments in them as well.
-* the home page of [Spring Data MongoDB](http://www.springsource.org/spring-data/mongodb) contains links to articles and other resources.
-* for more detailed questions, use the [forum](http://forum.springsource.org/forumdisplay.php?f=80). 
+* the [User Guide](http://docs.spring.io/spring-data/mongodb/docs/current/reference/html/)
+* the [JavaDocs](http://docs.spring.io/spring-data/mongodb/docs/current/api/) have extensive comments in them as well.
+* the home page of [Spring Data MongoDB](http://projects.spring.io/spring-data-mongodb) contains links to articles and other resources.
+* for more detailed questions, use [Spring Data Mongodb on Stackoverflow](http://stackoverflow.com/questions/tagged/spring-data-mongodb).
 
-If you are new to Spring as well as to Spring Data, look for information about [Spring projects](http://www.springsource.org/projects). 
+If you are new to Spring as well as to Spring Data, look for information about [Spring projects](http://projects.spring.io/).
 
 
 ## Quick Start
@@ -26,7 +26,7 @@ Add the Maven dependency:
 <dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-mongodb</artifactId>
-  <version>1.3.2.RELEASE</version>
+  <version>1.5.0.RELEASE</version>
 </dependency>
 ```
 
@@ -36,13 +36,13 @@ If you'd rather like the latest snapshots of the upcoming major version, use our
 <dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-mongodb</artifactId>
-  <version>1.4.0.BUILD-SNAPSHOT</version>
+  <version>1.6.0.BUILD-SNAPSHOT</version>
 </dependency>
 
 <repository>
   <id>spring-libs-snapshot</id>
   <name>Spring Snapshot Repository</name>
-  <url>http://repo.springsource.org/libs-snapshot</url>
+  <url>http://repo.spring.io/libs-snapshot</url>
 </repository>
 ```
 
@@ -53,7 +53,7 @@ MongoTemplate is the central support class for Mongo database operations. It pro
 * Basic POJO mapping support to and from BSON
 * Convenience methods to interact with the store (insert object, update objects) and MongoDB specific ones (geo-spatial operations, upserts, map-reduce etc.)
 * Connection affinity callback
-* Exception translation into Spring's [technology agnostic DAO exception hierarchy](http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/dao.html#dao-exceptions).
+* Exception translation into Spring's [technology agnostic DAO exception hierarchy](http://docs.spring.io/spring/docs/current/spring-framework-reference/html/dao.html#dao-exceptions).
 
 ### Spring Data repositories
 
@@ -81,7 +81,7 @@ class ApplicationConfig extends AbstractMongoConfiguration {
 
   @Override
   public Mongo mongo() throws Exception {
-    return new Mongo();
+    return new MongoClient();
   }
 
   @Override
@@ -94,9 +94,9 @@ class ApplicationConfig extends AbstractMongoConfiguration {
 This sets up a connection to a local MongoDB instance and enables the detection of Spring Data repositories (through `@EnableMongoRepositories`). The same configuration would look like this in XML:
 
 ```xml
-<bean id="template" class="org.springframework.data.document.mongodb.MongoTemplate">
+<bean id="template" class="org.springframework.data.mongodb.core.MongoTemplate">
   <constructor-arg>
-    <bean class="com.mongodb.Mongo">
+    <bean class="com.mongodb.MongoClient">
        <constructor-arg value="localhost" />
        <constructor-arg value="27017" />
     </bean>
@@ -139,9 +139,9 @@ public class MyService {
 
 Here are some ways for you to get involved in the community:
 
-* Get involved with the Spring community on the Spring Community Forums.  Please help out on the [forum](http://forum.springsource.org/forumdisplay.php?f=80) by responding to questions and joining the debate.
+* Get involved with the Spring community on Stackoverflow and help out on the [spring-data-mongodb](http://stackoverflow.com/questions/tagged/spring-data-mongodb) tag by responding to questions and joining the debate.
 * Create [JIRA](https://jira.springframework.org/browse/DATADOC) tickets for bugs and new features and comment and vote on the ones that you are interested in.  
 * Github is for social coding: if you want to write code, we encourage contributions through pull requests from [forks of this repository](http://help.github.com/forking/). If you want to contribute code this way, please reference a JIRA ticket as well covering the specific issue you are addressing.
-* Watch for upcoming articles on Spring by [subscribing](http://www.springsource.org/node/feed) to springframework.org
+* Watch for upcoming articles on Spring by [subscribing](http://spring.io/blog) to spring.io.
 
 Before we accept a non-trivial patch or pull request we will need you to sign the [contributor's agreement](https://support.springsource.com/spring_committer_signup).  Signing the contributor's agreement does not grant anyone commit rights to the main repository, but it does mean that we can accept your contributions, and you will get an author credit if we do.  Active contributors might be asked to join the core team, and given the ability to merge pull requests.

pom.xml

@@ -1,24 +1,23 @@
-<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
-	
+
 	<groupId>org.springframework.data</groupId>
 	<artifactId>spring-data-mongodb-parent</artifactId>
-	<version>1.4.0.M1</version>
+	<version>1.9.0.M1</version>
 	<packaging>pom</packaging>
 
 	<name>Spring Data MongoDB</name>
 	<description>MongoDB support for Spring Data</description>
-	<url>http://www.springsource.org/spring-data/mongodb</url>
+	<url>http://projects.spring.io/spring-data-mongodb</url>
 
 	<parent>
 		<groupId>org.springframework.data.build</groupId>
 		<artifactId>spring-data-parent</artifactId>
-		<version>1.3.0.M1</version>
-		<relativePath>../spring-data-build/parent/pom.xml</relativePath>
+		<version>1.8.0.M1</version>
 	</parent>
-	
+
 	<modules>
 		<module>spring-data-mongodb</module>
 		<module>spring-data-mongodb-cross-store</module>
@@ -29,10 +28,11 @@
 	<properties>
 		<project.type>multi</project.type>
 		<dist.id>spring-data-mongodb</dist.id>
-		<springdata.commons>1.7.0.M1</springdata.commons>
-		<mongo>2.11.3</mongo>
+		<springdata.commons>1.12.0.M1</springdata.commons>
+		<mongo>2.14.0</mongo>
+		<mongo.osgi>2.13.0</mongo.osgi>
 	</properties>
-	
+
 	<developers>
 		<developer>
 			<id>ogierke</id>
@@ -89,8 +89,101 @@
 			</roles>
 			<timezone>+1</timezone>
 		</developer>
+		<developer>
+			<id>cstrobl</id>
+			<name>Christoph Strobl</name>
+			<email>cstrobl at gopivotal.com</email>
+			<organization>Pivotal</organization>
+			<organizationUrl>http://www.gopivotal.com</organizationUrl>
+			<roles>
+				<role>Developer</role>
+			</roles>
+			<timezone>+1</timezone>
+		</developer>
 	</developers>
 
+	<profiles>
+		<profile>
+
+			<id>mongo-next</id>
+			<properties>
+				<mongo>2.14.0-SNAPSHOT</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo3</id>
+			<properties>
+				<mongo>3.0.4</mongo>
+			</properties>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo3-next</id>
+			<properties>
+				<mongo>3.0.5-SNAPSHOT</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo31</id>
+			<properties>
+				<mongo>3.1.0</mongo>
+			</properties>
+
+		</profile>
+
+		<profile>
+
+			<id>mongo32-next</id>
+			<properties>
+				<mongo>3.2.0-SNAPSHOT</mongo>
+			</properties>
+
+			<repositories>
+				<repository>
+					<id>mongo-snapshots</id>
+					<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+				</repository>
+			</repositories>
+
+		</profile>
+
+		<profile>
+			<id>release</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.jfrog.buildinfo</groupId>
+						<artifactId>artifactory-maven-plugin</artifactId>
+						<inherited>false</inherited>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+
+	</profiles>
+
 	<dependencies>
 		<!-- MongoDB -->
 		<dependency>
@@ -99,12 +192,19 @@
 			<version>${mongo}</version>
 		</dependency>
 	</dependencies>
-	
+
 	<repositories>
 		<repository>
 			<id>spring-libs-milestone</id>
-			<url>http://repo.springsource.org/libs-milestone-local</url>
+			<url>https://repo.spring.io/libs-milestone</url>
 		</repository>
 	</repositories>
 
+	<pluginRepositories>
+		<pluginRepository>
+			<id>spring-plugins-release</id>
+			<url>https://repo.spring.io/plugins-release</url>
+		</pluginRepository>
+	</pluginRepositories>
+
 </project>

spring-data-mongodb-cross-store/aop.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<aspectj>
+    <aspects>
+        <aspect name="org.springframework.beans.factory.aspectj.AnnotationBeanConfigurerAspect" />
+        <aspect name="org.springframework.data.mongodb.crossstore.MongoDocumentBacking" />
+    </aspects>
+</aspectj>

spring-data-mongodb-cross-store/pom.xml

@@ -2,29 +2,28 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
-	
+
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>1.4.0.M1</version>
+		<version>1.9.0.M1</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
-	
+
 	<artifactId>spring-data-mongodb-cross-store</artifactId>
-	<name>Spring Data MongoDB - Cross-Store Persistence Support</name>
-	
+	<name>Spring Data MongoDB - Cross-Store Support</name>
+
 	<properties>
-		<jpa>1.0.0.Final</jpa>
+		<jpa>2.0.0</jpa>
 		<hibernate>3.6.10.Final</hibernate>
 	</properties>
-	
+
 	<dependencies>
 
 		<!-- Spring -->
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-beans</artifactId>
-			<version>${spring}</version>
 			<exclusions>
 				<exclusion>
 					<groupId>commons-logging</groupId>
@@ -35,24 +34,21 @@
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-tx</artifactId>
-			<version>${spring}</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-aspects</artifactId>
-			<version>${spring}</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-orm</artifactId>
-			<version>${spring}</version>
 		</dependency>
 
 		<!-- Spring Data -->
 		<dependency>
 			<groupId>org.springframework.data</groupId>
 			<artifactId>spring-data-mongodb</artifactId>
-			<version>1.4.0.M1</version>
+			<version>1.9.0.M1</version>
 		</dependency>
 
 		<dependency>
@@ -60,17 +56,13 @@
 			<artifactId>aspectjrt</artifactId>
 			<version>${aspectj}</version>
 		</dependency>
-		<dependency>
-			<groupId>cglib</groupId>
-			<artifactId>cglib</artifactId>
-			<version>2.2</version>
-		</dependency>
 
 		<!-- JPA -->
 		<dependency>
-			<groupId>org.hibernate.javax.persistence</groupId>
-			<artifactId>hibernate-jpa-2.0-api</artifactId>
+			<groupId>org.eclipse.persistence</groupId>
+			<artifactId>javax.persistence</artifactId>
 			<version>${jpa}</version>
+			<optional>true</optional>
 		</dependency>
 
 		<!-- For Tests -->
@@ -106,7 +98,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>aspectj-maven-plugin</artifactId>
-				<version>1.4</version>
+				<version>1.6</version>
 				<dependencies>
 					<dependency>
 						<groupId>org.aspectj</groupId>
@@ -135,8 +127,10 @@
 							<artifactId>spring-aspects</artifactId>
 						</aspectLibrary>
 					</aspectLibraries>
+					<complianceLevel>${source.level}</complianceLevel>
 					<source>${source.level}</source>
 					<target>${source.level}</target>
+					<xmlConfigured>aop.xml</xmlConfigured>
 				</configuration>
 			</plugin>
 		</plugins>

spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoChangeSetPersister.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,21 +37,19 @@ import com.mongodb.MongoException;
 /**
  * @author Thomas Risberg
  * @author Oliver Gierke
+ * @author Alex Vengrovsk
+ * @author Mark Paluch
  */
 public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 
 	private static final String ENTITY_CLASS = "_entity_class";
-
 	private static final String ENTITY_ID = "_entity_id";
-
 	private static final String ENTITY_FIELD_NAME = "_entity_field_name";
-
 	private static final String ENTITY_FIELD_CLASS = "_entity_field_class";
 
-	protected final Logger log = LoggerFactory.getLogger(getClass());
+	private final Logger log = LoggerFactory.getLogger(getClass());
 
 	private MongoTemplate mongoTemplate;
-
 	private EntityManagerFactory entityManagerFactory;
 
 	public void setMongoTemplate(MongoTemplate mongoTemplate) {
@@ -80,25 +78,25 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 		dbk.put(ENTITY_ID, id);
 		dbk.put(ENTITY_CLASS, entityClass.getName());
 		if (log.isDebugEnabled()) {
-			log.debug("Loading MongoDB data for " + dbk);
+			log.debug("Loading MongoDB data for {}", dbk);
 		}
 		mongoTemplate.execute(collName, new CollectionCallback<Object>() {
 			public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
 				for (DBObject dbo : collection.find(dbk)) {
 					String key = (String) dbo.get(ENTITY_FIELD_NAME);
 					if (log.isDebugEnabled()) {
-						log.debug("Processing key: " + key);
+						log.debug("Processing key: {}", key);
 					}
 					if (!changeSet.getValues().containsKey(key)) {
 						String className = (String) dbo.get(ENTITY_FIELD_CLASS);
 						if (className == null) {
-							throw new DataIntegrityViolationException("Unble to convert property " + key + ": Invalid metadata, "
-									+ ENTITY_FIELD_CLASS + " not available");
+							throw new DataIntegrityViolationException(
+									"Unble to convert property " + key + ": Invalid metadata, " + ENTITY_FIELD_CLASS + " not available");
 						}
 						Class<?> clazz = ClassUtils.resolveClassName(className, ClassUtils.getDefaultClassLoader());
 						Object value = mongoTemplate.getConverter().read(clazz, dbo);
 						if (log.isDebugEnabled()) {
-							log.debug("Adding to ChangeSet: " + key);
+							log.debug("Adding to ChangeSet: {}", key);
 						}
 						changeSet.set(key, value);
 					}
@@ -113,12 +111,14 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 	 * @see org.springframework.data.crossstore.ChangeSetPersister#getPersistentId(org.springframework.data.crossstore.ChangeSetBacked, org.springframework.data.crossstore.ChangeSet)
 	 */
 	public Object getPersistentId(ChangeSetBacked entity, ChangeSet cs) throws DataAccessException {
-		log.debug("getPersistentId called on " + entity);
+		if (log.isDebugEnabled()) {
+			log.debug("getPersistentId called on {}", entity);
+		}
 		if (entityManagerFactory == null) {
 			throw new DataAccessResourceFailureException("EntityManagerFactory cannot be null");
 		}
-		Object o = entityManagerFactory.getPersistenceUnitUtil().getIdentifier(entity);
-		return o;
+
+		return entityManagerFactory.getPersistenceUnitUtil().getIdentifier(entity);
 	}
 
 	/*
@@ -132,7 +132,7 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 		}
 
 		if (log.isDebugEnabled()) {
-			log.debug("Flush: changeset: " + cs.getValues());
+			log.debug("Flush: changeset: {}", cs.getValues());
 		}
 
 		String collName = getCollectionNameForEntity(entity.getClass());
@@ -154,7 +154,7 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 				});
 				if (value == null) {
 					if (log.isDebugEnabled()) {
-						log.debug("Flush: removing: " + dbQuery);
+						log.debug("Flush: removing: {}", dbQuery);
 					}
 					mongoTemplate.execute(collName, new CollectionCallback<Object>() {
 						public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
@@ -166,7 +166,7 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 					final DBObject dbDoc = new BasicDBObject();
 					dbDoc.putAll(dbQuery);
 					if (log.isDebugEnabled()) {
-						log.debug("Flush: saving: " + dbQuery);
+						log.debug("Flush: saving: {}", dbQuery);
 					}
 					mongoTemplate.getConverter().write(value, dbDoc);
 					dbDoc.put(ENTITY_FIELD_CLASS, value.getClass().getName());

spring-data-mongodb-cross-store/template.mf

@@ -1,13 +1,13 @@
 Bundle-SymbolicName: org.springframework.data.mongodb.crossstore
 Bundle-Name: Spring Data MongoDB Cross Store Support
-Bundle-Vendor: SpringSource
+Bundle-Vendor: Pivotal Software, Inc.
 Bundle-ManifestVersion: 2
-Import-Package: 
+Import-Package:
  sun.reflect;version="0";resolution:=optional
 Export-Template:
  org.springframework.data.mongodb.crossstore.*;version="${project.version}"
-Import-Template: 
- com.mongodb.*;version="0",
+Import-Template:
+ com.mongodb.*;version="${mongo.osgi:[=.=.=,+1.0.0)}",
  javax.persistence.*;version="${jpa:[=.=.=,+1.0.0)}",
  org.aspectj.*;version="${aspectj:[1.0.0, 2.0.0)}",
  org.bson.*;version="0",

spring-data-mongodb-distribution/pom.xml

@@ -2,7 +2,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
-	
+
 	<artifactId>spring-data-mongodb-distribution</artifactId>
 
 	<packaging>pom</packaging>
@@ -13,10 +13,10 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>1.4.0.M1</version>
+		<version>1.9.0.M1</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
-	
+
 	<properties>
 		<project.root>${basedir}/..</project.root>
 		<dist.key>SDMONGO</dist.key>
@@ -32,6 +32,10 @@
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>wagon-maven-plugin</artifactId>
 			</plugin>
+			<plugin>
+				<groupId>org.asciidoctor</groupId>
+				<artifactId>asciidoctor-maven-plugin</artifactId>
+			</plugin>
 		</plugins>
 	</build>
 

spring-data-mongodb-log4j/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>1.4.0.M1</version>
+		<version>1.9.0.M1</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 

spring-data-mongodb-log4j/src/main/java/org/springframework/data/mongodb/log4j/MongoLog4jAppender.java

@@ -160,7 +160,7 @@ public class MongoLog4jAppender extends AppenderSkeleton {
 
 		// Copy properties into document
 		Map<Object, Object> props = event.getProperties();
-		if (null != props && props.size() > 0) {
+		if (null != props && !props.isEmpty()) {
 			BasicDBObject propsDbo = new BasicDBObject();
 			for (Map.Entry<Object, Object> entry : props.entrySet()) {
 				propsDbo.put(entry.getKey().toString(), entry.getValue().toString());

spring-data-mongodb-log4j/src/test/java/org/springframework/data/mongodb/log4j/MongoLog4jAppenderIntegrationTests.java

@@ -39,7 +39,7 @@ public class MongoLog4jAppenderIntegrationTests {
 
 	static final String NAME = MongoLog4jAppenderIntegrationTests.class.getName();
 
-	Logger log = Logger.getLogger(NAME);
+	private static final Logger log = Logger.getLogger(NAME);
 	Mongo mongo;
 	DB db;
 	String collection;

spring-data-mongodb-log4j/template.mf

@@ -1,9 +1,9 @@
 Bundle-SymbolicName: org.springframework.data.mongodb.log4j
 Bundle-Name: Spring Data Mongo DB Log4J Appender
-Bundle-Vendor: SpringSource
+Bundle-Vendor: Pivotal Software, Inc.
 Bundle-ManifestVersion: 2
 Import-Package:
  sun.reflect;version="0";resolution:=optional
 Import-Template:
- com.mongodb.*;version="${mongo:[=.=,+1.0.0)}",
+ com.mongodb.*;version="${mongo.osgi:[=.=.=,+1.0.0)}",
  org.apache.log4j.*;version="${log4j:[=.=.=,+1.0.0)}"

spring-data-mongodb/Spring Data MongoDB.sonargraph

@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<context version="7.1.9.205">
+<context version="7.2.2.230">
     <scope type="Project" name="spring-data-mongodb">
         <element type="TypeFilterReferenceOverridden" name="Filter">
             <element type="IncludeTypePattern" name="org.springframework.data.mongodb.**"/>
         </element>
         <architecture>
-            <element type="Layer" name="Config">
-                <element type="TypeFilter" name="Assignment">
-                    <element type="WeakTypePattern" name="**.config.**"/>
-                </element>
-                <dependency toName="Project|spring-data-mongodb::Layer|Core" type="AllowedDependency"/>
-                <dependency toName="Project|spring-data-mongodb::Layer|GridFS" type="AllowedDependency"/>
-                <dependency toName="Project|spring-data-mongodb::Layer|Monitoring" type="AllowedDependency"/>
-                <dependency toName="Project|spring-data-mongodb::Layer|Repositories" type="AllowedDependency"/>
-            </element>
             <element type="Layer" name="Repositories">
                 <element type="TypeFilter" name="Assignment">
                     <element type="IncludeTypePattern" name="**.repository.**"/>
@@ -40,10 +31,27 @@
                     <element type="TypeFilter" name="Assignment">
                         <element type="IncludeTypePattern" name="**.config.**"/>
                     </element>
+                    <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Mapping" type="AllowedDependency"/>
+                    <dependency toName="Project|spring-data-mongodb::Layer|Repositories::Subsystem|API" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Repositories::Subsystem|Implementation" type="AllowedDependency"/>
                 </element>
+                <element type="Subsystem" name="CDI">
+                    <element type="TypeFilter" name="Assignment">
+                        <element type="IncludeTypePattern" name="**.cdi.**"/>
+                    </element>
+                    <stereotype name="Unrestricted"/>
+                </element>
+                <dependency toName="Project|spring-data-mongodb::Layer|Config" type="AllowedDependency"/>
                 <dependency toName="Project|spring-data-mongodb::Layer|Core" type="AllowedDependency"/>
             </element>
+            <element type="Layer" name="Config">
+                <element type="TypeFilter" name="Assignment">
+                    <element type="WeakTypePattern" name="**.config.**"/>
+                </element>
+                <dependency toName="Project|spring-data-mongodb::Layer|Core" type="AllowedDependency"/>
+                <dependency toName="Project|spring-data-mongodb::Layer|GridFS" type="AllowedDependency"/>
+                <dependency toName="Project|spring-data-mongodb::Layer|Monitoring" type="AllowedDependency"/>
+            </element>
             <element type="Layer" name="Monitoring">
                 <element type="TypeFilter" name="Assignment">
                     <element type="IncludeTypePattern" name="**.monitor.**"/>
@@ -57,41 +65,45 @@
                 <dependency toName="Project|spring-data-mongodb::Layer|Core" type="AllowedDependency"/>
             </element>
             <element type="Layer" name="Core">
-                <element type="TypeFilter" name="Assignment">
-                    <element type="IncludeTypePattern" name="**.core.**"/>
-                </element>
+                <element type="TypeFilter" name="Assignment"/>
                 <element type="Subsystem" name="Mapping">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.mapping.**"/>
+                        <element type="IncludeTypePattern" name="**.core.mapping.**"/>
                     </element>
                 </element>
                 <element type="Subsystem" name="Geospatial">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.geo.**"/>
+                        <element type="IncludeTypePattern" name="**.core.geo.**"/>
                     </element>
-                    <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Mapping" type="AllowedDependency"/>
                 </element>
                 <element type="Subsystem" name="Query">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.query.**"/>
+                        <element type="IncludeTypePattern" name="**.core.query.**"/>
                     </element>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Geospatial" type="AllowedDependency"/>
                 </element>
+                <element type="Subsystem" name="Script">
+                    <element type="TypeFilter" name="Assignment">
+                        <element type="IncludeTypePattern" name="**.script.**"/>
+                    </element>
+                </element>
                 <element type="Subsystem" name="Conversion">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.convert.**"/>
+                        <element type="IncludeTypePattern" name="**.core.convert.**"/>
                     </element>
+                    <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Geospatial" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Mapping" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Query" type="AllowedDependency"/>
+                    <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Script" type="AllowedDependency"/>
                 </element>
                 <element type="Subsystem" name="SpEL">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.spel.**"/>
+                        <element type="IncludeTypePattern" name="**.core.spel.**"/>
                     </element>
                 </element>
                 <element type="Subsystem" name="Aggregation">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.aggregation.**"/>
+                        <element type="IncludeTypePattern" name="**.core.aggregation.**"/>
                     </element>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Conversion" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Mapping" type="AllowedDependency"/>
@@ -100,11 +112,16 @@
                 </element>
                 <element type="Subsystem" name="Index">
                     <element type="TypeFilter" name="Assignment">
-                        <element type="IncludeTypePattern" name="**.index.**"/>
+                        <element type="IncludeTypePattern" name="**.core.index.**"/>
                     </element>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Mapping" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Query" type="AllowedDependency"/>
                 </element>
+                <element type="Subsystem" name="MapReduce">
+                    <element type="TypeFilter" name="Assignment">
+                        <element type="IncludeTypePattern" name="**.mapreduce.**"/>
+                    </element>
+                </element>
                 <element type="Subsystem" name="Core">
                     <element type="TypeFilter" name="Assignment">
                         <element type="WeakTypePattern" name="**.core.**"/>
@@ -113,8 +130,17 @@
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Conversion" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Geospatial" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Index" type="AllowedDependency"/>
+                    <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|MapReduce" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Mapping" type="AllowedDependency"/>
                     <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Query" type="AllowedDependency"/>
+                    <dependency toName="Project|spring-data-mongodb::Layer|Core::Subsystem|Script" type="AllowedDependency"/>
+                </element>
+                <element type="Subsystem" name="Util">
+                    <element type="TypeFilter" name="Assignment">
+                        <element type="IncludeTypePattern" name="**.util.**"/>
+                    </element>
+                    <stereotype name="Unrestricted"/>
+                    <stereotype name="Public"/>
                 </element>
             </element>
             <element type="Subsystem" name="API">
@@ -162,7 +188,32 @@
             </element>
             <element type="Subsystem" name="Querydsl">
                 <element type="TypeFilter" name="Assignment">
-                    <element type="IncludeTypePattern" name="com.mysema.query.**"/>
+                    <element type="IncludeTypePattern" name="com.querydsl.**"/>
+                </element>
+            </element>
+            <element type="Subsystem" name="Slf4j">
+                <element type="TypeFilter" name="Assignment">
+                    <element type="IncludeTypePattern" name="org.slf4j.**"/>
+                </element>
+            </element>
+            <element type="Subsystem" name="Jackson">
+                <element type="TypeFilter" name="Assignment">
+                    <element type="IncludeTypePattern" name="com.fasterxml.jackson.**"/>
+                </element>
+            </element>
+            <element type="Subsystem" name="DOM">
+                <element type="TypeFilter" name="Assignment">
+                    <element type="IncludeTypePattern" name="org.w3c.dom.**"/>
+                </element>
+            </element>
+            <element type="Subsystem" name="AOP Alliance">
+                <element type="TypeFilter" name="Assignment">
+                    <element type="IncludeTypePattern" name="org.aopalliance.**"/>
+                </element>
+            </element>
+            <element type="Subsystem" name="Guava">
+                <element type="TypeFilter" name="Assignment">
+                    <element type="IncludeTypePattern" name="com.google.common.**"/>
                 </element>
             </element>
         </architecture>

spring-data-mongodb/pom.xml

@@ -2,7 +2,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
-	
+
 	<artifactId>spring-data-mongodb</artifactId>
 
 	<name>Spring Data MongoDB - Core</name>
@@ -11,37 +11,34 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>1.4.0.M1</version>
+		<version>1.9.0.M1</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
 	<properties>
 		<validation>1.0.0.GA</validation>
 		<objenesis>1.3</objenesis>
+		<equalsverifier>1.5</equalsverifier>
 	</properties>
 
 	<dependencies>
-		
-		<!--  Spring -->
+
+		<!-- Spring -->
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-tx</artifactId>
-			<version>${spring}</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-context</artifactId>
-			<version>${spring}</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-beans</artifactId>
-			<version>${spring}</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-core</artifactId>
-			<version>${spring}</version>
 			<exclusions>
 				<exclusion>
 					<groupId>commons-logging</groupId>
@@ -52,10 +49,9 @@
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-expression</artifactId>
-			<version>${spring}</version>
 		</dependency>
 
-		<!--  Spring Data -->
+		<!-- Spring Data -->
 		<dependency>
 			<groupId>${project.groupId}</groupId>
 			<artifactId>spring-data-commons</artifactId>
@@ -63,14 +59,14 @@
 		</dependency>
 
 		<dependency>
-			<groupId>com.mysema.querydsl</groupId>
+			<groupId>com.querydsl</groupId>
 			<artifactId>querydsl-mongodb</artifactId>
 			<version>${querydsl}</version>
 			<optional>true</optional>
 		</dependency>
 
 		<dependency>
-			<groupId>com.mysema.querydsl</groupId>
+			<groupId>com.querydsl</groupId>
 			<artifactId>querydsl-apt</artifactId>
 			<version>${querydsl}</version>
 			<scope>provided</scope>
@@ -82,7 +78,7 @@
 			<version>1.0</version>
 			<optional>true</optional>
 		</dependency>
-		
+
 		<!-- CDI -->
 		<dependency>
 			<groupId>javax.enterprise</groupId>
@@ -91,21 +87,21 @@
 			<scope>provided</scope>
 			<optional>true</optional>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>javax.el</groupId>
 			<artifactId>el-api</artifactId>
 			<version>${cdi}</version>
 			<scope>test</scope>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>org.apache.openwebbeans.test</groupId>
 			<artifactId>cditest-owb</artifactId>
 			<version>${webbeans}</version>
 			<scope>test</scope>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>javax.servlet</groupId>
 			<artifactId>servlet-api</artifactId>
@@ -120,7 +116,7 @@
 			<version>${validation}</version>
 			<optional>true</optional>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>org.objenesis</groupId>
 			<artifactId>objenesis</artifactId>
@@ -134,26 +130,60 @@
 			<version>4.2.0.Final</version>
 			<scope>test</scope>
 		</dependency>
-		
+
 		<dependency>
 			<groupId>joda-time</groupId>
 			<artifactId>joda-time</artifactId>
 			<version>${jodatime}</version>
 			<scope>test</scope>
 		</dependency>
-		
+
+		<dependency>
+			<groupId>org.threeten</groupId>
+			<artifactId>threetenbp</artifactId>
+			<version>${threetenbp}</version>
+			<optional>true</optional>
+		</dependency>
+
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>${jackson}</version>
+			<optional>true</optional>
+		</dependency>
+
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>jul-to-slf4j</artifactId>
+			<version>${slf4j}</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>nl.jqno.equalsverifier</groupId>
+			<artifactId>equalsverifier</artifactId>
+			<version>${equalsverifier}</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-webmvc</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 	</dependencies>
-	
+
 	<build>
 		<plugins>
 
 			<plugin>
 				<groupId>com.mysema.maven</groupId>
 				<artifactId>apt-maven-plugin</artifactId>
-				<version>1.0.8</version>
+				<version>${apt}</version>
 				<dependencies>
 					<dependency>
-						<groupId>com.mysema.querydsl</groupId>
+						<groupId>com.querydsl</groupId>
 						<artifactId>querydsl-apt</artifactId>
 						<version>${querydsl}</version>
 					</dependency>
@@ -187,9 +217,14 @@
 					<systemPropertyVariables>
 						<java.util.logging.config.file>src/test/resources/logging.properties</java.util.logging.config.file>
 					</systemPropertyVariables>
+					<properties>
+						<property>
+							<name>listener</name>
+							<value>org.springframework.data.mongodb.test.util.CleanMongoDBJunitRunListener</value>
+						</property>
+					</properties>
 				</configuration>
 			</plugin>
 		</plugins>
 	</build>
-
 </project>

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/BulkOperationException.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb;
+
+import java.util.List;
+
+import org.springframework.dao.DataAccessException;
+
+import com.mongodb.BulkWriteError;
+import com.mongodb.BulkWriteException;
+import com.mongodb.BulkWriteResult;
+
+/**
+ * Is thrown when errors occur during bulk operations.
+ * 
+ * @author Tobias Trelle
+ * @author Oliver Gierke
+ * @since 1.9
+ */
+public class BulkOperationException extends DataAccessException {
+
+	private static final long serialVersionUID = 73929601661154421L;
+
+	private final List<BulkWriteError> errors;
+	private final BulkWriteResult result;
+
+	/**
+	 * Creates a new {@link BulkOperationException} with the given message and source {@link BulkWriteException}.
+	 * 
+	 * @param message must not be {@literal null}.
+	 * @param source must not be {@literal null}.
+	 */
+	public BulkOperationException(String message, BulkWriteException source) {
+
+		super(message, source);
+
+		this.errors = source.getWriteErrors();
+		this.result = source.getWriteResult();
+	}
+
+	public List<BulkWriteError> getErrors() {
+		return errors;
+	}
+
+	public BulkWriteResult getResult() {
+		return result;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,13 +28,16 @@ import org.springframework.core.type.filter.AnnotationTypeFilter;
 import org.springframework.data.annotation.Persistent;
 import org.springframework.data.authentication.UserCredentials;
 import org.springframework.data.mapping.context.MappingContextIsNewStrategyFactory;
+import org.springframework.data.mapping.model.CamelCaseAbbreviatingFieldNamingStrategy;
+import org.springframework.data.mapping.model.FieldNamingStrategy;
+import org.springframework.data.mapping.model.PropertyNameFieldNamingStrategy;
+import org.springframework.data.mongodb.MongoDbFactory;
 import org.springframework.data.mongodb.core.MongoTemplate;
 import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
 import org.springframework.data.mongodb.core.convert.CustomConversions;
 import org.springframework.data.mongodb.core.convert.DbRefResolver;
 import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
-import org.springframework.data.mongodb.core.mapping.CamelCaseAbbreviatingFieldNamingStrategy;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.support.CachingIsNewStrategyFactory;
@@ -43,6 +46,7 @@ import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;
 
 import com.mongodb.Mongo;
+import com.mongodb.MongoClient;
 
 /**
  * Base class for Spring Data MongoDB configuration using JavaConfig.
@@ -50,6 +54,8 @@ import com.mongodb.Mongo;
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Thomas Darimont
+ * @author Ryan Tenney
+ * @author Christoph Strobl
  */
 @Configuration
 public abstract class AbstractMongoConfiguration {
@@ -66,7 +72,10 @@ public abstract class AbstractMongoConfiguration {
 	 * returned by {@link #getDatabaseName()} later on effectively.
 	 * 
 	 * @return
+	 * @deprecated since 1.7. {@link MongoClient} should hold authentication data within
+	 *             {@link MongoClient#getCredentialsList()}
 	 */
+	@Deprecated
 	protected String getAuthenticationDatabaseName() {
 		return null;
 	}
@@ -101,7 +110,7 @@ public abstract class AbstractMongoConfiguration {
 	 * @throws Exception
 	 */
 	@Bean
-	public SimpleMongoDbFactory mongoDbFactory() throws Exception {
+	public MongoDbFactory mongoDbFactory() throws Exception {
 		return new SimpleMongoDbFactory(mongo(), getDatabaseName(), getUserCredentials(), getAuthenticationDatabaseName());
 	}
 
@@ -115,7 +124,9 @@ public abstract class AbstractMongoConfiguration {
 	 *         entities.
 	 */
 	protected String getMappingBasePackage() {
-		return getClass().getPackage().getName();
+
+		Package mappingBasePackage = getClass().getPackage();
+		return mappingBasePackage == null ? null : mappingBasePackage.getName();
 	}
 
 	/**
@@ -123,7 +134,10 @@ public abstract class AbstractMongoConfiguration {
 	 * be used.
 	 * 
 	 * @return
+	 * @deprecated since 1.7. {@link MongoClient} should hold authentication data within
+	 *             {@link MongoClient#getCredentialsList()}
 	 */
+	@Deprecated
 	protected UserCredentials getUserCredentials() {
 		return null;
 	}
@@ -141,10 +155,7 @@ public abstract class AbstractMongoConfiguration {
 		MongoMappingContext mappingContext = new MongoMappingContext();
 		mappingContext.setInitialEntitySet(getInitialEntitySet());
 		mappingContext.setSimpleTypeHolder(customConversions().getSimpleTypeHolder());
-
-		if (abbreviateFieldNames()) {
-			mappingContext.setFieldNamingStrategy(new CamelCaseAbbreviatingFieldNamingStrategy());
-		}
+		mappingContext.setFieldNamingStrategy(fieldNamingStrategy());
 
 		return mappingContext;
 	}
@@ -229,4 +240,15 @@ public abstract class AbstractMongoConfiguration {
 	protected boolean abbreviateFieldNames() {
 		return false;
 	}
+
+	/**
+	 * Configures a {@link FieldNamingStrategy} on the {@link MongoMappingContext} instance created.
+	 * 
+	 * @return
+	 * @since 1.5
+	 */
+	protected FieldNamingStrategy fieldNamingStrategy() {
+		return abbreviateFieldNames() ? new CamelCaseAbbreviatingFieldNamingStrategy()
+				: PropertyNameFieldNamingStrategy.INSTANCE;
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/BeanNames.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,13 +24,14 @@ package org.springframework.data.mongodb.config;
  */
 public abstract class BeanNames {
 
-	static final String MAPPING_CONTEXT = "mappingContext";
-	static final String INDEX_HELPER = "indexCreationHelper";
-	static final String MONGO = "mongo";
-	static final String DB_FACTORY = "mongoDbFactory";
-	static final String VALIDATING_EVENT_LISTENER = "validatingMongoEventListener";
-	static final String IS_NEW_STRATEGY_FACTORY = "isNewStrategyFactory";
+	public static final String MAPPING_CONTEXT_BEAN_NAME = "mongoMappingContext";
+
+	static final String INDEX_HELPER_BEAN_NAME = "indexCreationHelper";
+	static final String MONGO_BEAN_NAME = "mongo";
+	static final String DB_FACTORY_BEAN_NAME = "mongoDbFactory";
+	static final String VALIDATING_EVENT_LISTENER_BEAN_NAME = "validatingMongoEventListener";
+	static final String IS_NEW_STRATEGY_FACTORY_BEAN_NAME = "isNewStrategyFactory";
 	static final String DEFAULT_CONVERTER_BEAN_NAME = "mappingConverter";
-	static final String MONGO_TEMPLATE = "mongoTemplate";
-	static final String GRID_FS_TEMPLATE = "gridFsTemplate";
+	static final String MONGO_TEMPLATE_BEAN_NAME = "mongoTemplate";
+	static final String GRID_FS_TEMPLATE_BEAN_NAME = "gridFsTemplate";
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/GridFsTemplateParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -43,7 +43,7 @@ class GridFsTemplateParser extends AbstractBeanDefinitionParser {
 			throws BeanDefinitionStoreException {
 
 		String id = super.resolveId(element, definition, parserContext);
-		return StringUtils.hasText(id) ? id : BeanNames.GRID_FS_TEMPLATE;
+		return StringUtils.hasText(id) ? id : BeanNames.GRID_FS_TEMPLATE_BEAN_NAME;
 	}
 
 	/*
@@ -57,13 +57,14 @@ class GridFsTemplateParser extends AbstractBeanDefinitionParser {
 
 		String converterRef = element.getAttribute("converter-ref");
 		String dbFactoryRef = element.getAttribute("db-factory-ref");
+		String bucket = element.getAttribute("bucket");
 
 		BeanDefinitionBuilder gridFsTemplateBuilder = BeanDefinitionBuilder.genericBeanDefinition(GridFsTemplate.class);
 
 		if (StringUtils.hasText(dbFactoryRef)) {
 			gridFsTemplateBuilder.addConstructorArgReference(dbFactoryRef);
 		} else {
-			gridFsTemplateBuilder.addConstructorArgReference(BeanNames.DB_FACTORY);
+			gridFsTemplateBuilder.addConstructorArgReference(BeanNames.DB_FACTORY_BEAN_NAME);
 		}
 
 		if (StringUtils.hasText(converterRef)) {
@@ -72,7 +73,11 @@ class GridFsTemplateParser extends AbstractBeanDefinitionParser {
 			gridFsTemplateBuilder.addConstructorArgReference(BeanNames.DEFAULT_CONVERTER_BEAN_NAME);
 		}
 
-		return (AbstractBeanDefinition) helper.getComponentIdButFallback(gridFsTemplateBuilder, BeanNames.GRID_FS_TEMPLATE)
+		if (StringUtils.hasText(bucket)) {
+			gridFsTemplateBuilder.addConstructorArgValue(bucket);
+		}
+
+		return (AbstractBeanDefinition) helper.getComponentIdButFallback(gridFsTemplateBuilder, BeanNames.GRID_FS_TEMPLATE_BEAN_NAME)
 				.getBeanDefinition();
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MappingMongoConverterParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,6 +30,7 @@ import org.springframework.beans.factory.config.BeanDefinitionHolder;
 import org.springframework.beans.factory.config.RuntimeBeanReference;
 import org.springframework.beans.factory.parsing.BeanComponentDefinition;
 import org.springframework.beans.factory.parsing.CompositeComponentDefinition;
+import org.springframework.beans.factory.parsing.ReaderContext;
 import org.springframework.beans.factory.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
@@ -51,10 +52,10 @@ import org.springframework.core.type.filter.TypeFilter;
 import org.springframework.data.annotation.Persistent;
 import org.springframework.data.config.BeanComponentDefinitionBuilder;
 import org.springframework.data.mapping.context.MappingContextIsNewStrategyFactory;
+import org.springframework.data.mapping.model.CamelCaseAbbreviatingFieldNamingStrategy;
 import org.springframework.data.mongodb.core.convert.CustomConversions;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
 import org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator;
-import org.springframework.data.mongodb.core.mapping.CamelCaseAbbreviatingFieldNamingStrategy;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.core.mapping.event.ValidatingMongoEventListener;
@@ -71,11 +72,12 @@ import org.w3c.dom.Element;
  * @author Oliver Gierke
  * @author Maciej Walkowiak
  * @author Thomas Darimont
+ * @author Christoph Strobl
  */
 public class MappingMongoConverterParser implements BeanDefinitionParser {
 
 	private static final String BASE_PACKAGE = "base-package";
-	private static final boolean jsr303Present = ClassUtils.isPresent("javax.validation.Validator",
+	private static final boolean JSR_303_PRESENT = ClassUtils.isPresent("javax.validation.Validator",
 			MappingMongoConverterParser.class.getClassLoader());
 
 	/* (non-Javadoc)
@@ -83,10 +85,13 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 	 */
 	public BeanDefinition parse(Element element, ParserContext parserContext) {
 
-		BeanDefinitionRegistry registry = parserContext.getRegistry();
+		if (parserContext.isNested()) {
+			parserContext.getReaderContext().error("Mongo Converter must not be defined as nested bean.", element);
+		}
 
+		BeanDefinitionRegistry registry = parserContext.getRegistry();
 		String id = element.getAttribute(AbstractBeanDefinitionParser.ID_ATTRIBUTE);
-		id = StringUtils.hasText(id) ? id : "mappingConverter";
+		id = StringUtils.hasText(id) ? id : DEFAULT_CONVERTER_BEAN_NAME;
 
 		parserContext.pushContainingComponent(new CompositeComponentDefinition("Mapping Mongo Converter", element));
 
@@ -98,7 +103,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		// Need a reference to a Mongo instance
 		String dbFactoryRef = element.getAttribute("db-factory-ref");
 		if (!StringUtils.hasText(dbFactoryRef)) {
-			dbFactoryRef = DB_FACTORY;
+			dbFactoryRef = DB_FACTORY_BEAN_NAME;
 		}
 
 		// Converter
@@ -116,10 +121,10 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		}
 
 		try {
-			registry.getBeanDefinition(INDEX_HELPER);
+			registry.getBeanDefinition(INDEX_HELPER_BEAN_NAME);
 		} catch (NoSuchBeanDefinitionException ignored) {
 			if (!StringUtils.hasText(dbFactoryRef)) {
-				dbFactoryRef = DB_FACTORY;
+				dbFactoryRef = DB_FACTORY_BEAN_NAME;
 			}
 			BeanDefinitionBuilder indexHelperBuilder = BeanDefinitionBuilder
 					.genericBeanDefinition(MongoPersistentEntityIndexCreator.class);
@@ -128,14 +133,14 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 			indexHelperBuilder.addDependsOn(ctxRef);
 
 			parserContext.registerBeanComponent(new BeanComponentDefinition(indexHelperBuilder.getBeanDefinition(),
-					INDEX_HELPER));
+					INDEX_HELPER_BEAN_NAME));
 		}
 
 		BeanDefinition validatingMongoEventListener = potentiallyCreateValidatingMongoEventListener(element, parserContext);
 
 		if (validatingMongoEventListener != null) {
 			parserContext.registerBeanComponent(new BeanComponentDefinition(validatingMongoEventListener,
-					VALIDATING_EVENT_LISTENER));
+					VALIDATING_EVENT_LISTENER_BEAN_NAME));
 		}
 
 		parserContext.registerBeanComponent(new BeanComponentDefinition(converterBuilder.getBeanDefinition(), id));
@@ -166,7 +171,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 
 	private RuntimeBeanReference getValidator(Object source, ParserContext parserContext) {
 
-		if (!jsr303Present) {
+		if (!JSR_303_PRESENT) {
 			return null;
 		}
 
@@ -180,7 +185,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		return new RuntimeBeanReference(validatorName);
 	}
 
-	static String potentiallyCreateMappingContext(Element element, ParserContext parserContext,
+	public static String potentiallyCreateMappingContext(Element element, ParserContext parserContext,
 			BeanDefinition conversionsDefinition, String converterId) {
 
 		String ctxRef = element.getAttribute("mapping-context-ref");
@@ -195,7 +200,8 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		BeanDefinitionBuilder mappingContextBuilder = BeanDefinitionBuilder
 				.genericBeanDefinition(MongoMappingContext.class);
 
-		Set<String> classesToAdd = getInititalEntityClasses(element, mappingContextBuilder);
+		Set<String> classesToAdd = getInititalEntityClasses(element);
+
 		if (classesToAdd != null) {
 			mappingContextBuilder.addPropertyValue("initialEntitySet", classesToAdd);
 		}
@@ -208,18 +214,43 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 			mappingContextBuilder.addPropertyValue("simpleTypeHolder", simpleTypesDefinition);
 		}
 
-		String abbreviateFieldNames = element.getAttribute("abbreviate-field-names");
-		if ("true".equals(abbreviateFieldNames)) {
-			mappingContextBuilder.addPropertyValue("fieldNamingStrategy", new RootBeanDefinition(
-					CamelCaseAbbreviatingFieldNamingStrategy.class));
-		}
+		parseFieldNamingStrategy(element, parserContext.getReaderContext(), mappingContextBuilder);
 
-		ctxRef = converterId + "." + MAPPING_CONTEXT;
+		ctxRef = converterId == null || DEFAULT_CONVERTER_BEAN_NAME.equals(converterId) ? MAPPING_CONTEXT_BEAN_NAME
+				: converterId + "." + MAPPING_CONTEXT_BEAN_NAME;
 
 		parserContext.registerBeanComponent(componentDefinitionBuilder.getComponent(mappingContextBuilder, ctxRef));
 		return ctxRef;
 	}
 
+	private static void parseFieldNamingStrategy(Element element, ReaderContext context, BeanDefinitionBuilder builder) {
+
+		String abbreviateFieldNames = element.getAttribute("abbreviate-field-names");
+		String fieldNamingStrategy = element.getAttribute("field-naming-strategy-ref");
+
+		boolean fieldNamingStrategyReferenced = StringUtils.hasText(fieldNamingStrategy);
+		boolean abbreviationActivated = StringUtils.hasText(abbreviateFieldNames)
+				&& Boolean.parseBoolean(abbreviateFieldNames);
+
+		if (fieldNamingStrategyReferenced && abbreviationActivated) {
+			context.error("Field name abbreviation cannot be activated if a field-naming-strategy-ref is configured!",
+					element);
+			return;
+		}
+
+		Object value = null;
+
+		if ("true".equals(abbreviateFieldNames)) {
+			value = new RootBeanDefinition(CamelCaseAbbreviatingFieldNamingStrategy.class);
+		} else if (fieldNamingStrategyReferenced) {
+			value = new RuntimeBeanReference(fieldNamingStrategy);
+		}
+
+		if (value != null) {
+			builder.addPropertyValue("fieldNamingStrategy", value);
+		}
+	}
+
 	private BeanDefinition getCustomConversions(Element element, ParserContext parserContext) {
 
 		List<Element> customConvertersElements = DomUtils.getChildElementsByTagName(element, "custom-converters");
@@ -262,7 +293,7 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		return null;
 	}
 
-	private static Set<String> getInititalEntityClasses(Element element, BeanDefinitionBuilder builder) {
+	private static Set<String> getInititalEntityClasses(Element element) {
 
 		String basePackage = element.getAttribute(BASE_PACKAGE);
 
@@ -309,9 +340,10 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 		mappingContextStrategyFactoryBuilder.addConstructorArgReference(mappingContextRef);
 
 		BeanComponentDefinitionBuilder builder = new BeanComponentDefinitionBuilder(element, context);
-		context.registerBeanComponent(builder.getComponent(mappingContextStrategyFactoryBuilder, IS_NEW_STRATEGY_FACTORY));
+		context.registerBeanComponent(builder.getComponent(mappingContextStrategyFactoryBuilder,
+				IS_NEW_STRATEGY_FACTORY_BEAN_NAME));
 
-		return IS_NEW_STRATEGY_FACTORY;
+		return IS_NEW_STRATEGY_FACTORY_BEAN_NAME;
 	}
 
 	/**

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoAuditingBeanDefinitionParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 the original author or authors.
+ * Copyright 2012-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,14 +15,19 @@
  */
 package org.springframework.data.mongodb.config;
 
-import org.springframework.beans.factory.config.BeanDefinition;
+import static org.springframework.data.config.ParsingUtils.*;
+import static org.springframework.data.mongodb.config.BeanNames.*;
+
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.RootBeanDefinition;
 import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
-import org.springframework.data.config.IsNewAwareAuditingHandlerBeanDefinitionParser;
+import org.springframework.data.auditing.config.IsNewAwareAuditingHandlerBeanDefinitionParser;
+import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.core.mapping.event.AuditingEventListener;
+import org.springframework.util.StringUtils;
 import org.w3c.dom.Element;
 
 /**
@@ -58,23 +63,24 @@ public class MongoAuditingBeanDefinitionParser extends AbstractSingleBeanDefinit
 	@Override
 	protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
 
-		BeanDefinitionRegistry registry = parserContext.getRegistry();
+		String mappingContextRef = element.getAttribute("mapping-context-ref");
 
-		if (!registry.containsBeanDefinition(BeanNames.IS_NEW_STRATEGY_FACTORY)) {
+		if (!StringUtils.hasText(mappingContextRef)) {
 
-			String mappingContextName = BeanNames.MAPPING_CONTEXT;
+			BeanDefinitionRegistry registry = parserContext.getRegistry();
 
-			if (!registry.containsBeanDefinition(BeanNames.MAPPING_CONTEXT)) {
-				mappingContextName = MappingMongoConverterParser.potentiallyCreateMappingContext(element, parserContext, null,
-						BeanNames.DEFAULT_CONVERTER_BEAN_NAME);
+			if (!registry.containsBeanDefinition(MAPPING_CONTEXT_BEAN_NAME)) {
+				registry.registerBeanDefinition(MAPPING_CONTEXT_BEAN_NAME, new RootBeanDefinition(MongoMappingContext.class));
 			}
 
-			MappingMongoConverterParser.createIsNewStrategyFactoryBeanDefinition(mappingContextName, parserContext, element);
+			mappingContextRef = MAPPING_CONTEXT_BEAN_NAME;
 		}
 
-		BeanDefinitionParser parser = new IsNewAwareAuditingHandlerBeanDefinitionParser(BeanNames.IS_NEW_STRATEGY_FACTORY);
-		BeanDefinition handlerBeanDefinition = parser.parse(element, parserContext);
+		IsNewAwareAuditingHandlerBeanDefinitionParser parser = new IsNewAwareAuditingHandlerBeanDefinitionParser(
+				mappingContextRef);
+		parser.parse(element, parserContext);
 
-		builder.addConstructorArgValue(handlerBeanDefinition);
+		builder.addConstructorArgValue(getObjectFactoryBeanDefinition(parser.getResolvedBeanName(),
+				parserContext.extractSource(element)));
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoAuditingRegistrar.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,17 +15,22 @@
  */
 package org.springframework.data.mongodb.config;
 
+import static org.springframework.beans.factory.config.BeanDefinition.*;
+import static org.springframework.data.mongodb.config.BeanNames.*;
+
 import java.lang.annotation.Annotation;
 
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.beans.factory.support.RootBeanDefinition;
 import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
 import org.springframework.core.type.AnnotationMetadata;
 import org.springframework.data.auditing.IsNewAwareAuditingHandler;
-import org.springframework.data.auditing.config.AnnotationAuditingConfiguration;
 import org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport;
-import org.springframework.data.mapping.context.MappingContextIsNewStrategyFactory;
+import org.springframework.data.auditing.config.AuditingConfiguration;
+import org.springframework.data.config.ParsingUtils;
+import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.core.mapping.event.AuditingEventListener;
 import org.springframework.data.support.IsNewStrategyFactory;
 import org.springframework.util.Assert;
@@ -47,6 +52,15 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		return EnableMongoAuditing.class;
 	}
 
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditingHandlerBeanName()
+	 */
+	@Override
+	protected String getAuditingHandlerBeanName() {
+		return "mongoAuditingHandler";
+	}
+
 	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerBeanDefinitions(org.springframework.core.type.AnnotationMetadata, org.springframework.beans.factory.support.BeanDefinitionRegistry)
@@ -57,22 +71,22 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		Assert.notNull(annotationMetadata, "AnnotationMetadata must not be null!");
 		Assert.notNull(registry, "BeanDefinitionRegistry must not be null!");
 
-		registerIsNewStrategyFactoryIfNecessary(registry);
+		defaultDependenciesIfNecessary(registry, annotationMetadata);
 		super.registerBeanDefinitions(annotationMetadata, registry);
 	}
 
 	/* 
 	 * (non-Javadoc)
-	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditHandlerBeanDefinitionBuilder(org.springframework.data.auditing.config.AnnotationAuditingConfiguration)
+	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditHandlerBeanDefinitionBuilder(org.springframework.data.auditing.config.AuditingConfiguration)
 	 */
 	@Override
-	protected BeanDefinitionBuilder getAuditHandlerBeanDefinitionBuilder(AnnotationAuditingConfiguration configuration) {
+	protected BeanDefinitionBuilder getAuditHandlerBeanDefinitionBuilder(AuditingConfiguration configuration) {
 
-		Assert.notNull(configuration, "AnnotationAuditingConfiguration must not be null!");
+		Assert.notNull(configuration, "AuditingConfiguration must not be null!");
 
-		return configureDefaultAuditHandlerAttributes(configuration,
-				BeanDefinitionBuilder.rootBeanDefinition(IsNewAwareAuditingHandler.class)).addConstructorArgReference(
-				BeanNames.IS_NEW_STRATEGY_FACTORY);
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(IsNewAwareAuditingHandler.class);
+		builder.addConstructorArgReference(MAPPING_CONTEXT_BEAN_NAME);
+		return configureDefaultAuditHandlerAttributes(configuration, builder);
 	}
 
 	/* 
@@ -86,20 +100,31 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		Assert.notNull(auditingHandlerDefinition, "BeanDefinition must not be null!");
 		Assert.notNull(registry, "BeanDefinitionRegistry must not be null!");
 
-		registerInfrastructureBeanWithId(BeanDefinitionBuilder.rootBeanDefinition(AuditingEventListener.class)
-				.addConstructorArgValue(auditingHandlerDefinition).getRawBeanDefinition(),
+		BeanDefinitionBuilder listenerBeanDefinitionBuilder = BeanDefinitionBuilder
+				.rootBeanDefinition(AuditingEventListener.class);
+		listenerBeanDefinitionBuilder.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(
+				getAuditingHandlerBeanName(), registry));
+
+		registerInfrastructureBeanWithId(listenerBeanDefinitionBuilder.getBeanDefinition(),
 				AuditingEventListener.class.getName(), registry);
 	}
 
 	/**
-	 * @param registry, the {@link BeanDefinitionRegistry} to use to register an {@link IsNewStrategyFactory} to.
+	 * Register default bean definitions for a {@link MongoMappingContext} and an {@link IsNewStrategyFactory} in case we
+	 * don't find beans with the assumed names in the registry.
+	 * 
+	 * @param registry the {@link BeanDefinitionRegistry} to use to register the components into.
+	 * @param source the source which the registered components shall be registered with
 	 */
-	private void registerIsNewStrategyFactoryIfNecessary(BeanDefinitionRegistry registry) {
+	private void defaultDependenciesIfNecessary(BeanDefinitionRegistry registry, Object source) {
 
-		if (!registry.containsBeanDefinition(BeanNames.IS_NEW_STRATEGY_FACTORY)) {
-			registry.registerBeanDefinition(BeanNames.IS_NEW_STRATEGY_FACTORY,
-					BeanDefinitionBuilder.rootBeanDefinition(MappingContextIsNewStrategyFactory.class)
-							.addConstructorArgReference(BeanNames.MAPPING_CONTEXT).getBeanDefinition());
+		if (!registry.containsBeanDefinition(MAPPING_CONTEXT_BEAN_NAME)) {
+
+			RootBeanDefinition definition = new RootBeanDefinition(MongoMappingContext.class);
+			definition.setRole(ROLE_INFRASTRUCTURE);
+			definition.setSource(source);
+
+			registry.registerBeanDefinition(MAPPING_CONTEXT_BEAN_NAME, definition);
 		}
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoClientParser.java

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.config;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.parsing.BeanComponentDefinition;
+import org.springframework.beans.factory.parsing.CompositeComponentDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.xml.BeanDefinitionParser;
+import org.springframework.beans.factory.xml.ParserContext;
+import org.springframework.data.config.BeanComponentDefinitionBuilder;
+import org.springframework.data.config.ParsingUtils;
+import org.springframework.data.mongodb.core.MongoClientFactoryBean;
+import org.springframework.util.StringUtils;
+import org.w3c.dom.Element;
+
+/**
+ * Parser for {@code mongo-client} definitions.
+ * 
+ * @author Christoph Strobl
+ * @since 1.7
+ */
+public class MongoClientParser implements BeanDefinitionParser {
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.xml.BeanDefinitionParser#parse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
+	 */
+	public BeanDefinition parse(Element element, ParserContext parserContext) {
+
+		Object source = parserContext.extractSource(element);
+		String id = element.getAttribute("id");
+
+		BeanComponentDefinitionBuilder helper = new BeanComponentDefinitionBuilder(element, parserContext);
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(MongoClientFactoryBean.class);
+
+		ParsingUtils.setPropertyValue(builder, element, "port", "port");
+		ParsingUtils.setPropertyValue(builder, element, "host", "host");
+		ParsingUtils.setPropertyValue(builder, element, "credentials", "credentials");
+
+		MongoParsingUtils.parseMongoClientOptions(element, builder);
+		MongoParsingUtils.parseReplicaSet(element, builder);
+
+		String defaultedId = StringUtils.hasText(id) ? id : BeanNames.MONGO_BEAN_NAME;
+
+		parserContext.pushContainingComponent(new CompositeComponentDefinition("Mongo", source));
+
+		BeanComponentDefinition mongoComponent = helper.getComponent(builder, defaultedId);
+		parserContext.registerBeanComponent(mongoComponent);
+
+		BeanComponentDefinition serverAddressPropertyEditor = helper.getComponent(MongoParsingUtils
+				.getServerAddressPropertyEditorBuilder());
+		parserContext.registerBeanComponent(serverAddressPropertyEditor);
+
+		BeanComponentDefinition writeConcernEditor = helper.getComponent(MongoParsingUtils
+				.getWriteConcernPropertyEditorBuilder());
+		parserContext.registerBeanComponent(writeConcernEditor);
+
+		BeanComponentDefinition readPreferenceEditor = helper.getComponent(MongoParsingUtils
+				.getReadPreferencePropertyEditorBuilder());
+		parserContext.registerBeanComponent(readPreferenceEditor);
+
+		BeanComponentDefinition credentialsEditor = helper.getComponent(MongoParsingUtils
+				.getMongoCredentialPropertyEditor());
+		parserContext.registerBeanComponent(credentialsEditor);
+
+		parserContext.popAndRegisterContainingComponent();
+
+		return mongoComponent.getBeanDefinition();
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoCredentialPropertyEditor.java

@@ -0,0 +1,198 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.config;
+
+import java.beans.PropertyEditorSupport;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Properties;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.springframework.util.StringUtils;
+
+import com.mongodb.MongoCredential;
+
+/**
+ * Parse a {@link String} to a Collection of {@link MongoCredential}.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
+
+	private static final Pattern GROUP_PATTERN = Pattern.compile("(\\\\?')(.*?)\\1");
+
+	private static final String AUTH_MECHANISM_KEY = "uri.authMechanism";
+	private static final String USERNAME_PASSWORD_DELIMINATOR = ":";
+	private static final String DATABASE_DELIMINATOR = "@";
+	private static final String OPTIONS_DELIMINATOR = "?";
+	private static final String OPTION_VALUE_DELIMINATOR = "&";
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
+	 */
+	@Override
+	public void setAsText(String text) throws IllegalArgumentException {
+
+		if (!StringUtils.hasText(text)) {
+			return;
+		}
+
+		List<MongoCredential> credentials = new ArrayList<MongoCredential>();
+
+		for (String credentialString : extractCredentialsString(text)) {
+
+			String[] userNameAndPassword = extractUserNameAndPassword(credentialString);
+			String database = extractDB(credentialString);
+			Properties options = extractOptions(credentialString);
+
+			if (!options.isEmpty()) {
+
+				if (options.containsKey(AUTH_MECHANISM_KEY)) {
+
+					String authMechanism = options.getProperty(AUTH_MECHANISM_KEY);
+
+					if (MongoCredential.GSSAPI_MECHANISM.equals(authMechanism)) {
+
+						verifyUserNamePresent(userNameAndPassword);
+						credentials.add(MongoCredential.createGSSAPICredential(userNameAndPassword[0]));
+					} else if (MongoCredential.MONGODB_CR_MECHANISM.equals(authMechanism)) {
+
+						verifyUsernameAndPasswordPresent(userNameAndPassword);
+						verifyDatabasePresent(database);
+						credentials.add(MongoCredential.createMongoCRCredential(userNameAndPassword[0], database,
+								userNameAndPassword[1].toCharArray()));
+					} else if (MongoCredential.MONGODB_X509_MECHANISM.equals(authMechanism)) {
+
+						verifyUserNamePresent(userNameAndPassword);
+						credentials.add(MongoCredential.createMongoX509Credential(userNameAndPassword[0]));
+					} else if (MongoCredential.PLAIN_MECHANISM.equals(authMechanism)) {
+
+						verifyUsernameAndPasswordPresent(userNameAndPassword);
+						verifyDatabasePresent(database);
+						credentials.add(MongoCredential.createPlainCredential(userNameAndPassword[0], database,
+								userNameAndPassword[1].toCharArray()));
+					} else if (MongoCredential.SCRAM_SHA_1_MECHANISM.equals(authMechanism)) {
+
+						verifyUsernameAndPasswordPresent(userNameAndPassword);
+						verifyDatabasePresent(database);
+						credentials.add(MongoCredential.createScramSha1Credential(userNameAndPassword[0], database,
+								userNameAndPassword[1].toCharArray()));
+					} else {
+						throw new IllegalArgumentException(
+								String.format("Cannot create MongoCredentials for unknown auth mechanism '%s'!", authMechanism));
+					}
+				}
+			} else {
+
+				verifyUsernameAndPasswordPresent(userNameAndPassword);
+				verifyDatabasePresent(database);
+				credentials.add(
+						MongoCredential.createCredential(userNameAndPassword[0], database, userNameAndPassword[1].toCharArray()));
+			}
+		}
+
+		setValue(credentials);
+	}
+
+	private List<String> extractCredentialsString(String source) {
+
+		Matcher matcher = GROUP_PATTERN.matcher(source);
+		List<String> list = new ArrayList<String>();
+
+		while (matcher.find()) {
+
+			String value = StringUtils.trimLeadingCharacter(matcher.group(), '\'');
+			list.add(StringUtils.trimTrailingCharacter(value, '\''));
+		}
+
+		if (!list.isEmpty()) {
+			return list;
+		}
+
+		return Arrays.asList(source.split(","));
+	}
+
+	private static String[] extractUserNameAndPassword(String text) {
+
+		int index = text.lastIndexOf(DATABASE_DELIMINATOR);
+
+		index = index != -1 ? index : text.lastIndexOf(OPTIONS_DELIMINATOR);
+
+		return index == -1 ? new String[] {} : text.substring(0, index).split(USERNAME_PASSWORD_DELIMINATOR);
+	}
+
+	private static String extractDB(String text) {
+
+		int dbSeperationIndex = text.lastIndexOf(DATABASE_DELIMINATOR);
+
+		if (dbSeperationIndex == -1) {
+			return "";
+		}
+
+		String tmp = text.substring(dbSeperationIndex + 1);
+		int optionsSeperationIndex = tmp.lastIndexOf(OPTIONS_DELIMINATOR);
+
+		return optionsSeperationIndex > -1 ? tmp.substring(0, optionsSeperationIndex) : tmp;
+	}
+
+	private static Properties extractOptions(String text) {
+
+		int optionsSeperationIndex = text.lastIndexOf(OPTIONS_DELIMINATOR);
+		int dbSeperationIndex = text.lastIndexOf(OPTIONS_DELIMINATOR);
+
+		if (optionsSeperationIndex == -1 || dbSeperationIndex > optionsSeperationIndex) {
+			return new Properties();
+		}
+
+		Properties properties = new Properties();
+
+		for (String option : text.substring(optionsSeperationIndex + 1).split(OPTION_VALUE_DELIMINATOR)) {
+			String[] optionArgs = option.split("=");
+			properties.put(optionArgs[0], optionArgs[1]);
+		}
+
+		return properties;
+	}
+
+	private static void verifyUsernameAndPasswordPresent(String[] source) {
+
+		verifyUserNamePresent(source);
+
+		if (source.length != 2) {
+			throw new IllegalArgumentException(
+					"Credentials need to specify username and password like in 'username:password@database'!");
+		}
+	}
+
+	private static void verifyDatabasePresent(String source) {
+
+		if (!StringUtils.hasText(source)) {
+			throw new IllegalArgumentException("Credentials need to specify database like in 'username:password@database'!");
+		}
+	}
+
+	private static void verifyUserNamePresent(String[] source) {
+
+		if (source.length == 0 || !StringUtils.hasText(source[0])) {
+			throw new IllegalArgumentException("Credentials need to specify username!");
+		}
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoDbFactoryParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 by the original author(s).
+ * Copyright 2011-2015 by the original author(s).
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,10 @@ package org.springframework.data.mongodb.config;
 import static org.springframework.data.config.ParsingUtils.*;
 import static org.springframework.data.mongodb.config.MongoParsingUtils.*;
 
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
 import org.springframework.beans.factory.BeanDefinitionStoreException;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.parsing.BeanComponentDefinition;
@@ -34,6 +38,7 @@ import org.springframework.util.StringUtils;
 import org.w3c.dom.Element;
 
 import com.mongodb.Mongo;
+import com.mongodb.MongoClientURI;
 import com.mongodb.MongoURI;
 
 /**
@@ -42,9 +47,22 @@ import com.mongodb.MongoURI;
  * @author Jon Brisbin
  * @author Oliver Gierke
  * @author Thomas Darimont
+ * @author Christoph Strobl
+ * @author Viktor Khoroshko
  */
 public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 
+	private static final Set<String> MONGO_URI_ALLOWED_ADDITIONAL_ATTRIBUTES;
+
+	static {
+
+		Set<String> mongoUriAllowedAdditionalAttributes = new HashSet<String>();
+		mongoUriAllowedAdditionalAttributes.add("id");
+		mongoUriAllowedAdditionalAttributes.add("write-concern");
+
+		MONGO_URI_ALLOWED_ADDITIONAL_ATTRIBUTES = Collections.unmodifiableSet(mongoUriAllowedAdditionalAttributes);
+	}
+
 	/* 
 	 * (non-Javadoc)
 	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#resolveId(org.w3c.dom.Element, org.springframework.beans.factory.support.AbstractBeanDefinition, org.springframework.beans.factory.xml.ParserContext)
@@ -54,7 +72,7 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 			throws BeanDefinitionStoreException {
 
 		String id = super.resolveId(element, definition, parserContext);
-		return StringUtils.hasText(id) ? id : BeanNames.DB_FACTORY;
+		return StringUtils.hasText(id) ? id : BeanNames.DB_FACTORY_BEAN_NAME;
 	}
 
 	/* 
@@ -64,29 +82,25 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 	@Override
 	protected AbstractBeanDefinition parseInternal(Element element, ParserContext parserContext) {
 
-		Object source = parserContext.extractSource(element);
-
-		BeanComponentDefinitionBuilder helper = new BeanComponentDefinitionBuilder(element, parserContext);
-
-		String uri = element.getAttribute("uri");
-		String mongoRef = element.getAttribute("mongo-ref");
-		String dbname = element.getAttribute("dbname");
-
-		BeanDefinition userCredentials = getUserCredentialsBeanDefinition(element, parserContext);
-
 		// Common setup
 		BeanDefinitionBuilder dbFactoryBuilder = BeanDefinitionBuilder.genericBeanDefinition(SimpleMongoDbFactory.class);
 		setPropertyValue(dbFactoryBuilder, element, "write-concern", "writeConcern");
 
-		if (StringUtils.hasText(uri)) {
-			if (StringUtils.hasText(mongoRef) || StringUtils.hasText(dbname) || userCredentials != null) {
-				parserContext.getReaderContext().error("Configure either Mongo URI or details individually!", source);
-			}
+		BeanDefinition mongoUri = getMongoUri(element, parserContext);
 
-			dbFactoryBuilder.addConstructorArgValue(getMongoUri(uri));
+		if (mongoUri != null) {
+
+			dbFactoryBuilder.addConstructorArgValue(mongoUri);
 			return getSourceBeanDefinition(dbFactoryBuilder, parserContext, element);
 		}
 
+		BeanComponentDefinitionBuilder helper = new BeanComponentDefinitionBuilder(element, parserContext);
+
+		String mongoRef = element.getAttribute("mongo-ref");
+		String dbname = element.getAttribute("dbname");
+
+		BeanDefinition userCredentials = getUserCredentialsBeanDefinition(element, parserContext);
+
 		// Defaulting
 		if (StringUtils.hasText(mongoRef)) {
 			dbFactoryBuilder.addConstructorArgReference(mongoRef);
@@ -103,7 +117,7 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		BeanComponentDefinition component = helper.getComponent(writeConcernPropertyEditorBuilder);
 		parserContext.registerBeanComponent(component);
 
-		return (AbstractBeanDefinition) helper.getComponentIdButFallback(dbFactoryBuilder, BeanNames.DB_FACTORY)
+		return (AbstractBeanDefinition) helper.getComponentIdButFallback(dbFactoryBuilder, BeanNames.DB_FACTORY_BEAN_NAME)
 				.getBeanDefinition();
 	}
 
@@ -147,14 +161,42 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 	}
 
 	/**
-	 * Creates a {@link BeanDefinition} for a {@link MongoURI}.
+	 * Creates a {@link BeanDefinition} for a {@link MongoURI} or {@link MongoClientURI} depending on configured
+	 * attributes. <br />
+	 * Errors when configured element contains {@literal uri} or {@literal client-uri} along with other attributes except
+	 * {@literal write-concern} and/or {@literal id}.
 	 * 
-	 * @param uri
-	 * @return
+	 * @param element must not be {@literal null}.
+	 * @param parserContext
+	 * @return {@literal null} in case no client-/uri defined.
 	 */
-	private BeanDefinition getMongoUri(String uri) {
+	private BeanDefinition getMongoUri(Element element, ParserContext parserContext) {
 
-		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(MongoURI.class);
+		boolean hasClientUri = element.hasAttribute("client-uri");
+
+		if (!hasClientUri && !element.hasAttribute("uri")) {
+			return null;
+		}
+
+		int allowedAttributesCount = 1;
+		for (String attribute : MONGO_URI_ALLOWED_ADDITIONAL_ATTRIBUTES) {
+
+			if (element.hasAttribute(attribute)) {
+				allowedAttributesCount++;
+			}
+		}
+
+		if (element.getAttributes().getLength() > allowedAttributesCount) {
+
+			parserContext.getReaderContext().error(
+					"Configure either " + (hasClientUri ? "Mongo Client URI" : "Mongo URI") + " or details individually!",
+					parserContext.extractSource(element));
+		}
+
+		Class<?> type = hasClientUri ? MongoClientURI.class : MongoURI.class;
+		String uri = hasClientUri ? element.getAttribute("client-uri") : element.getAttribute("uri");
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(type);
 		builder.addConstructorArgValue(uri);
 
 		return builder.getBeanDefinition();

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoNamespaceHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,15 +16,13 @@
 package org.springframework.data.mongodb.config;
 
 import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
-import org.springframework.data.mongodb.repository.config.MongoRepositoryConfigurationExtension;
-import org.springframework.data.repository.config.RepositoryBeanDefinitionParser;
-import org.springframework.data.repository.config.RepositoryConfigurationExtension;
 
 /**
  * {@link org.springframework.beans.factory.xml.NamespaceHandler} for Mongo DB configuration.
  * 
  * @author Oliver Gierke
  * @author Martin Baumgartner
+ * @author Christoph Strobl
  */
 public class MongoNamespaceHandler extends NamespaceHandlerSupport {
 
@@ -34,12 +32,9 @@ public class MongoNamespaceHandler extends NamespaceHandlerSupport {
 	 */
 	public void init() {
 
-		RepositoryConfigurationExtension extension = new MongoRepositoryConfigurationExtension();
-		RepositoryBeanDefinitionParser repositoryBeanDefinitionParser = new RepositoryBeanDefinitionParser(extension);
-
-		registerBeanDefinitionParser("repositories", repositoryBeanDefinitionParser);
 		registerBeanDefinitionParser("mapping-converter", new MappingMongoConverterParser());
 		registerBeanDefinitionParser("mongo", new MongoParser());
+		registerBeanDefinitionParser("mongo-client", new MongoClientParser());
 		registerBeanDefinitionParser("db-factory", new MongoDbFactoryParser());
 		registerBeanDefinitionParser("jmx", new MongoJmxParser());
 		registerBeanDefinitionParser("auditing", new MongoAuditingBeanDefinitionParser());

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2012 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,14 +15,10 @@
  */
 package org.springframework.data.mongodb.config;
 
-import java.util.Map;
-
 import org.springframework.beans.factory.config.BeanDefinition;
-import org.springframework.beans.factory.config.CustomEditorConfigurer;
 import org.springframework.beans.factory.parsing.BeanComponentDefinition;
 import org.springframework.beans.factory.parsing.CompositeComponentDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
-import org.springframework.beans.factory.support.ManagedMap;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
 import org.springframework.data.config.BeanComponentDefinitionBuilder;
@@ -36,6 +32,7 @@ import org.w3c.dom.Element;
  * 
  * @author Mark Pollack
  * @author Oliver Gierke
+ * @author Christoph Strobl
  */
 public class MongoParser implements BeanDefinitionParser {
 
@@ -58,13 +55,14 @@ public class MongoParser implements BeanDefinitionParser {
 		MongoParsingUtils.parseMongoOptions(element, builder);
 		MongoParsingUtils.parseReplicaSet(element, builder);
 
-		String defaultedId = StringUtils.hasText(id) ? id : BeanNames.MONGO;
+		String defaultedId = StringUtils.hasText(id) ? id : BeanNames.MONGO_BEAN_NAME;
 
 		parserContext.pushContainingComponent(new CompositeComponentDefinition("Mongo", source));
 
 		BeanComponentDefinition mongoComponent = helper.getComponent(builder, defaultedId);
 		parserContext.registerBeanComponent(mongoComponent);
-		BeanComponentDefinition serverAddressPropertyEditor = helper.getComponent(registerServerAddressPropertyEditor());
+		BeanComponentDefinition serverAddressPropertyEditor = helper.getComponent(MongoParsingUtils
+				.getServerAddressPropertyEditorBuilder());
 		parserContext.registerBeanComponent(serverAddressPropertyEditor);
 		BeanComponentDefinition writeConcernPropertyEditor = helper.getComponent(MongoParsingUtils
 				.getWriteConcernPropertyEditorBuilder());
@@ -75,19 +73,4 @@ public class MongoParser implements BeanDefinitionParser {
 		return mongoComponent.getBeanDefinition();
 	}
 
-	/**
-	 * One should only register one bean definition but want to have the convenience of using
-	 * AbstractSingleBeanDefinitionParser but have the side effect of registering a 'default' property editor with the
-	 * container.
-	 */
-	private BeanDefinitionBuilder registerServerAddressPropertyEditor() {
-
-		Map<String, String> customEditors = new ManagedMap<String, String>();
-		customEditors.put("com.mongodb.ServerAddress[]",
-				"org.springframework.data.mongodb.config.ServerAddressPropertyEditor");
-
-		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(CustomEditorConfigurer.class);
-		builder.addPropertyValue("customEditors", customEditors);
-		return builder;
-	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParsingUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,6 +24,7 @@ import org.springframework.beans.factory.config.CustomEditorConfigurer;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.ManagedMap;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
+import org.springframework.data.mongodb.core.MongoClientOptionsFactoryBean;
 import org.springframework.data.mongodb.core.MongoOptionsFactoryBean;
 import org.springframework.util.xml.DomUtils;
 import org.w3c.dom.Element;
@@ -33,13 +34,13 @@ import org.w3c.dom.Element;
  * 
  * @author Mark Pollack
  * @author Oliver Gierke
- * @author Thomas Darimont
+ * @author Thomas Darimont
+ * @author Christoph Strobl
  */
+@SuppressWarnings("deprecation")
 abstract class MongoParsingUtils {
 
-	private MongoParsingUtils() {
-
-	}
+	private MongoParsingUtils() {}
 
 	/**
 	 * Parses the mongo replica-set element.
@@ -54,12 +55,14 @@ abstract class MongoParsingUtils {
 	}
 
 	/**
-	 * Parses the mongo:options sub-element. Populates the given attribute factory with the proper attributes.
+	 * Parses the {@code mongo:options} sub-element. Populates the given attribute factory with the proper attributes.
 	 * 
-	 * @return true if parsing actually occured, false otherwise
+	 * @return true if parsing actually occured, {@literal false} otherwise
 	 */
 	static boolean parseMongoOptions(Element element, BeanDefinitionBuilder mongoBuilder) {
+
 		Element optionsElement = DomUtils.getChildElementByTagName(element, "options");
+
 		if (optionsElement == null) {
 			return false;
 		}
@@ -80,13 +83,58 @@ abstract class MongoParsingUtils {
 		setPropertyValue(optionsDefBuilder, optionsElement, "write-timeout", "writeTimeout");
 		setPropertyValue(optionsDefBuilder, optionsElement, "write-fsync", "writeFsync");
 		setPropertyValue(optionsDefBuilder, optionsElement, "slave-ok", "slaveOk");
-		setPropertyValue(optionsDefBuilder, optionsElement, "ssl", "ssl");
-		setPropertyReference(optionsDefBuilder, optionsElement, "ssl-socket-factory-ref", "sslSocketFactory");
+		setPropertyValue(optionsDefBuilder, optionsElement, "ssl", "ssl");
+		setPropertyReference(optionsDefBuilder, optionsElement, "ssl-socket-factory-ref", "sslSocketFactory");
 
 		mongoBuilder.addPropertyValue("mongoOptions", optionsDefBuilder.getBeanDefinition());
 		return true;
 	}
 
+	/**
+	 * Parses the {@code mongo:client-options} sub-element. Populates the given attribute factory with the proper
+	 * attributes.
+	 * 
+	 * @param element must not be {@literal null}.
+	 * @param mongoClientBuilder must not be {@literal null}.
+	 * @return
+	 * @since 1.7
+	 */
+	public static boolean parseMongoClientOptions(Element element, BeanDefinitionBuilder mongoClientBuilder) {
+
+		Element optionsElement = DomUtils.getChildElementByTagName(element, "client-options");
+
+		if (optionsElement == null) {
+			return false;
+		}
+
+		BeanDefinitionBuilder clientOptionsDefBuilder = BeanDefinitionBuilder
+				.genericBeanDefinition(MongoClientOptionsFactoryBean.class);
+
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "description", "description");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "min-connections-per-host", "minConnectionsPerHost");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "connections-per-host", "connectionsPerHost");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "threads-allowed-to-block-for-connection-multiplier",
+				"threadsAllowedToBlockForConnectionMultiplier");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "max-wait-time", "maxWaitTime");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "max-connection-idle-time", "maxConnectionIdleTime");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "max-connection-life-time", "maxConnectionLifeTime");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "connect-timeout", "connectTimeout");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "socket-timeout", "socketTimeout");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "socket-keep-alive", "socketKeepAlive");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "read-preference", "readPreference");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "write-concern", "writeConcern");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "heartbeat-frequency", "heartbeatFrequency");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "min-heartbeat-frequency", "minHeartbeatFrequency");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "heartbeat-connect-timeout", "heartbeatConnectTimeout");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "heartbeat-socket-timeout", "heartbeatSocketTimeout");
+		setPropertyValue(clientOptionsDefBuilder, optionsElement, "ssl", "ssl");
+		setPropertyReference(clientOptionsDefBuilder, optionsElement, "ssl-socket-factory-ref", "sslSocketFactory");
+
+		mongoClientBuilder.addPropertyValue("mongoClientOptions", clientOptionsDefBuilder.getBeanDefinition());
+
+		return true;
+	}
+
 	/**
 	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
 	 * {@link WriteConcernPropertyEditor}.
@@ -103,4 +151,56 @@ abstract class MongoParsingUtils {
 
 		return builder;
 	}
+
+	/**
+	 * One should only register one bean definition but want to have the convenience of using
+	 * AbstractSingleBeanDefinitionParser but have the side effect of registering a 'default' property editor with the
+	 * container.
+	 */
+	static BeanDefinitionBuilder getServerAddressPropertyEditorBuilder() {
+
+		Map<String, String> customEditors = new ManagedMap<String, String>();
+		customEditors.put("com.mongodb.ServerAddress[]",
+				"org.springframework.data.mongodb.config.ServerAddressPropertyEditor");
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(CustomEditorConfigurer.class);
+		builder.addPropertyValue("customEditors", customEditors);
+		return builder;
+	}
+
+	/**
+	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
+	 * {@link ReadPreferencePropertyEditor}.
+	 * 
+	 * @return
+	 * @since 1.7
+	 */
+	static BeanDefinitionBuilder getReadPreferencePropertyEditorBuilder() {
+
+		Map<String, Class<?>> customEditors = new ManagedMap<String, Class<?>>();
+		customEditors.put("com.mongodb.ReadPreference", ReadPreferencePropertyEditor.class);
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(CustomEditorConfigurer.class);
+		builder.addPropertyValue("customEditors", customEditors);
+
+		return builder;
+	}
+
+	/**
+	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
+	 * {@link MongoCredentialPropertyEditor}.
+	 * 
+	 * @return
+	 * @since 1.7
+	 */
+	static BeanDefinitionBuilder getMongoCredentialPropertyEditor() {
+
+		Map<String, Class<?>> customEditors = new ManagedMap<String, Class<?>>();
+		customEditors.put("com.mongodb.MongoCredential[]", MongoCredentialPropertyEditor.class);
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(CustomEditorConfigurer.class);
+		builder.addPropertyValue("customEditors", customEditors);
+
+		return builder;
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoTemplateParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,6 +35,7 @@ import org.w3c.dom.Element;
  * {@link BeanDefinitionParser} to parse {@code template} elements into {@link BeanDefinition}s.
  * 
  * @author Martin Baumgartner
+ * @author Oliver Gierke
  */
 class MongoTemplateParser extends AbstractBeanDefinitionParser {
 
@@ -47,7 +48,7 @@ class MongoTemplateParser extends AbstractBeanDefinitionParser {
 			throws BeanDefinitionStoreException {
 
 		String id = super.resolveId(element, definition, parserContext);
-		return StringUtils.hasText(id) ? id : BeanNames.MONGO_TEMPLATE;
+		return StringUtils.hasText(id) ? id : BeanNames.MONGO_TEMPLATE_BEAN_NAME;
 	}
 
 	/*
@@ -68,7 +69,7 @@ class MongoTemplateParser extends AbstractBeanDefinitionParser {
 		if (StringUtils.hasText(dbFactoryRef)) {
 			mongoTemplateBuilder.addConstructorArgReference(dbFactoryRef);
 		} else {
-			mongoTemplateBuilder.addConstructorArgReference(BeanNames.DB_FACTORY);
+			mongoTemplateBuilder.addConstructorArgReference(BeanNames.DB_FACTORY_BEAN_NAME);
 		}
 
 		if (StringUtils.hasText(converterRef)) {
@@ -80,7 +81,7 @@ class MongoTemplateParser extends AbstractBeanDefinitionParser {
 		BeanComponentDefinition component = helper.getComponent(writeConcernPropertyEditorBuilder);
 		parserContext.registerBeanComponent(component);
 
-		return (AbstractBeanDefinition) helper.getComponentIdButFallback(mongoTemplateBuilder, BeanNames.MONGO_TEMPLATE)
-				.getBeanDefinition();
+		return (AbstractBeanDefinition) helper.getComponentIdButFallback(mongoTemplateBuilder,
+				BeanNames.MONGO_TEMPLATE_BEAN_NAME).getBeanDefinition();
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ReadPreferencePropertyEditor.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.config;
+
+import java.beans.PropertyEditorSupport;
+
+import com.mongodb.ReadPreference;
+
+/**
+ * Parse a {@link String} to a {@link ReadPreference}.
+ * 
+ * @author Christoph Strobl
+ * @since 1.7
+ */
+public class ReadPreferencePropertyEditor extends PropertyEditorSupport {
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
+	 */
+	@Override
+	public void setAsText(String readPreferenceString) throws IllegalArgumentException {
+
+		if (readPreferenceString == null) {
+			return;
+		}
+
+		ReadPreference preference = null;
+
+		try {
+			preference = ReadPreference.valueOf(readPreferenceString);
+		} catch (IllegalArgumentException ex) {
+			// ignore this one and try to map it differently
+		}
+
+		if (preference != null) {
+			setValue(preference);
+		} else if ("PRIMARY".equalsIgnoreCase(readPreferenceString)) {
+			setValue(ReadPreference.primary());
+		} else if ("PRIMARY_PREFERRED".equalsIgnoreCase(readPreferenceString)) {
+			setValue(ReadPreference.primaryPreferred());
+		} else if ("SECONDARY".equalsIgnoreCase(readPreferenceString)) {
+			setValue(ReadPreference.secondary());
+		} else if ("SECONDARY_PREFERRED".equalsIgnoreCase(readPreferenceString)) {
+			setValue(ReadPreference.secondaryPreferred());
+		} else if ("NEAREST".equalsIgnoreCase(readPreferenceString)) {
+			setValue(ReadPreference.nearest());
+		} else {
+			throw new IllegalArgumentException(String.format("Cannot find matching ReadPreference for %s",
+					readPreferenceString));
+		}
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ServerAddressPropertyEditor.java

@@ -16,12 +16,14 @@
 package org.springframework.data.mongodb.config;
 
 import java.beans.PropertyEditorSupport;
+import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.HashSet;
 import java.util.Set;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 
 import com.mongodb.ServerAddress;
@@ -35,6 +37,11 @@ import com.mongodb.ServerAddress;
  */
 public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 
+	/**
+	 * A port is a number without a leading 0 at the end of the address that is proceeded by just a single :.
+	 */
+	private static final String HOST_PORT_SPLIT_PATTERN = "(?<!:):(?=[123456789]\\d*$)";
+	private static final String COULD_NOT_PARSE_ADDRESS_MESSAGE = "Could not parse address {} '{}'. Check your replica set configuration!";
 	private static final Logger LOG = LoggerFactory.getLogger(ServerAddressPropertyEditor.class);
 
 	/*
@@ -77,22 +84,53 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 	 */
 	private ServerAddress parseServerAddress(String source) {
 
-		String[] hostAndPort = StringUtils.delimitedListToStringArray(source.trim(), ":");
+		if (!StringUtils.hasText(source)) {
+			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "source", source);
+			return null;
+		}
 
-		if (!StringUtils.hasText(source) || hostAndPort.length > 2) {
-			LOG.warn("Could not parse address source '{}'. Check your replica set configuration!", source);
+		String[] hostAndPort = extractHostAddressAndPort(source.trim());
+
+		if (hostAndPort.length > 2) {
+			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "source", source);
 			return null;
 		}
 
 		try {
-			return hostAndPort.length == 1 ? new ServerAddress(hostAndPort[0]) : new ServerAddress(hostAndPort[0],
-					Integer.parseInt(hostAndPort[1]));
+			InetAddress hostAddress = InetAddress.getByName(hostAndPort[0]);
+			Integer port = hostAndPort.length == 1 ? null : Integer.parseInt(hostAndPort[1]);
+
+			return port == null ? new ServerAddress(hostAddress) : new ServerAddress(hostAddress, port);
 		} catch (UnknownHostException e) {
-			LOG.warn("Could not parse host '{}'. Check your replica set configuration!", hostAndPort[0]);
+			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "host", hostAndPort[0]);
 		} catch (NumberFormatException e) {
-			LOG.warn("Could not parse port '{}'. Check your replica set configuration!", hostAndPort[1]);
+			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "port", hostAndPort[1]);
 		}
 
 		return null;
 	}
+
+	/**
+	 * Extract the host and port from the given {@link String}.
+	 * 
+	 * @param addressAndPortSource must not be {@literal null}.
+	 * @return
+	 */
+	private String[] extractHostAddressAndPort(String addressAndPortSource) {
+
+		Assert.notNull(addressAndPortSource, "Address and port source must not be null!");
+
+		String[] hostAndPort = addressAndPortSource.split(HOST_PORT_SPLIT_PATTERN);
+		String hostAddress = hostAndPort[0];
+
+		if (isHostAddressInIPv6BracketNotation(hostAddress)) {
+			hostAndPort[0] = hostAddress.substring(1, hostAddress.length() - 1);
+		}
+
+		return hostAndPort;
+	}
+
+	private boolean isHostAddressInIPv6BracketNotation(String hostAddress) {
+		return hostAddress.startsWith("[") && hostAddress.endsWith("]");
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/BulkOperations.java

@@ -0,0 +1,145 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import java.util.List;
+
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.data.util.Tuple;
+
+import com.mongodb.BulkWriteResult;
+
+/**
+ * Bulk operations for insert/update/remove actions on a collection. These bulks operation are available since MongoDB
+ * 2.6 and make use of low level bulk commands on the protocol level. This interface defines a fluent API to add
+ * multiple single operations or list of similar operations in sequence which can then eventually be executed by calling
+ * {@link #execute()}.
+ * 
+ * @author Tobias Trelle
+ * @author Oliver Gierke
+ * @since 1.9
+ */
+public interface BulkOperations {
+
+	/**
+	 * Mode for bulk operation.
+	 **/
+	public enum BulkMode {
+
+		/** Perform bulk operations in sequence. The first error will cancel processing. */
+		ORDERED,
+
+		/** Perform bulk operations in parallel. Processing will continue on errors. */
+		UNORDERED
+	};
+
+	/**
+	 * Add a single insert to the bulk operation.
+	 * 
+	 * @param documents the document to insert, must not be {@literal null}.
+	 * @return the current {@link BulkOperations} instance with the insert added, will never be {@literal null}.
+	 */
+	BulkOperations insert(Object documents);
+
+	/**
+	 * Add a list of inserts to the bulk operation.
+	 * 
+	 * @param documents List of documents to insert, must not be {@literal null}.
+	 * @return the current {@link BulkOperations} instance with the insert added, will never be {@literal null}.
+	 */
+	BulkOperations insert(List<? extends Object> documents);
+
+	/**
+	 * Add a single update to the bulk operation. For the update request, only the first matching document is updated.
+	 * 
+	 * @param query update criteria, must not be {@literal null}.
+	 * @param update {@link Update} operation to perform, must not be {@literal null}.
+	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
+	 */
+	BulkOperations updateOne(Query query, Update update);
+
+	/**
+	 * Add a list of updates to the bulk operation. For each update request, only the first matching document is updated.
+	 * 
+	 * @param updates Update operations to perform.
+	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
+	 */
+	BulkOperations updateOne(List<Tuple<Query, Update>> updates);
+
+	/**
+	 * Add a single update to the bulk operation. For the update request, all matching documents are updated.
+	 * 
+	 * @param query Update criteria.
+	 * @param update Update operation to perform.
+	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
+	 */
+	BulkOperations updateMulti(Query query, Update update);
+
+	/**
+	 * Add a list of updates to the bulk operation. For each update request, all matching documents are updated.
+	 * 
+	 * @param updates Update operations to perform.
+	 * @return The bulk operation.
+	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
+	 */
+	BulkOperations updateMulti(List<Tuple<Query, Update>> updates);
+
+	/**
+	 * Add a single upsert to the bulk operation. An upsert is an update if the set of matching documents is not empty,
+	 * else an insert.
+	 * 
+	 * @param query Update criteria.
+	 * @param update Update operation to perform.
+	 * @return The bulk operation.
+	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
+	 */
+	BulkOperations upsert(Query query, Update update);
+
+	/**
+	 * Add a list of upserts to the bulk operation. An upsert is an update if the set of matching documents is not empty,
+	 * else an insert.
+	 * 
+	 * @param updates Updates/insert operations to perform.
+	 * @return The bulk operation.
+	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
+	 */
+	BulkOperations upsert(List<Tuple<Query, Update>> updates);
+
+	/**
+	 * Add a single remove operation to the bulk operation.
+	 * 
+	 * @param remove the {@link Query} to select the documents to be removed, must not be {@literal null}.
+	 * @return the current {@link BulkOperations} instance with the removal added, will never be {@literal null}.
+	 */
+	BulkOperations remove(Query remove);
+
+	/**
+	 * Add a list of remove operations to the bulk operation.
+	 * 
+	 * @param removes the remove operations to perform, must not be {@literal null}.
+	 * @return the current {@link BulkOperations} instance with the removal added, will never be {@literal null}.
+	 */
+	BulkOperations remove(List<Query> removes);
+
+	/**
+	 * Execute all bulk operations using the default write concern.
+	 * 
+	 * @return Result of the bulk operation providing counters for inserts/updates etc.
+	 * @throws {@link BulkOperationException} if an error occurred during bulk processing.
+	 */
+	BulkWriteResult execute();
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CursorPreparer.java

@@ -25,7 +25,7 @@ import com.mongodb.DBCursor;
 interface CursorPreparer {
 
 	/**
-	 * Prepare the given cursor (apply limits, skips and so on). Returns th eprepared cursor.
+	 * Prepare the given cursor (apply limits, skips and so on). Returns the prepared cursor.
 	 * 
 	 * @param cursor
 	 */

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultBulkOperations.java

@@ -0,0 +1,327 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.springframework.dao.DataAccessException;
+import org.springframework.dao.support.PersistenceExceptionTranslator;
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.data.util.Tuple;
+import org.springframework.util.Assert;
+
+import com.mongodb.BulkWriteException;
+import com.mongodb.BulkWriteOperation;
+import com.mongodb.BulkWriteRequestBuilder;
+import com.mongodb.BulkWriteResult;
+import com.mongodb.DBCollection;
+import com.mongodb.DBObject;
+import com.mongodb.WriteConcern;
+
+/**
+ * Default implementation for {@link BulkOperations}.
+ * 
+ * @author Tobias Trelle
+ * @author Oliver Gierke
+ * @since 1.9
+ */
+class DefaultBulkOperations implements BulkOperations {
+
+	private final MongoOperations mongoOperations;
+	private final BulkMode bulkMode;
+	private final String collectionName;
+	private final Class<?> entityType;
+
+	private PersistenceExceptionTranslator exceptionTranslator;
+	private WriteConcernResolver writeConcernResolver;
+	private WriteConcern defaultWriteConcern;
+
+	private BulkWriteOperation bulk;
+
+	/**
+	 * Creates a new {@link DefaultBulkOperations} for the given {@link MongoOperations}, {@link BulkMode}, collection
+	 * name and {@link WriteConcern}.
+	 * 
+	 * @param mongoOperations The underlying {@link MongoOperations}, must not be {@literal null}.
+	 * @param bulkMode must not be {@literal null}.
+	 * @param collectionName Name of the collection to work on, must not be {@literal null} or empty.
+	 * @param entityType the entity type, can be {@literal null}.
+	 */
+	DefaultBulkOperations(MongoOperations mongoOperations, BulkMode bulkMode, String collectionName,
+			Class<?> entityType) {
+
+		Assert.notNull(mongoOperations, "MongoOperations must not be null!");
+		Assert.notNull(bulkMode, "BulkMode must not be null!");
+		Assert.hasText(collectionName, "Collection name must not be null or empty!");
+
+		this.mongoOperations = mongoOperations;
+		this.bulkMode = bulkMode;
+		this.collectionName = collectionName;
+		this.entityType = entityType;
+
+		this.exceptionTranslator = new MongoExceptionTranslator();
+		this.writeConcernResolver = DefaultWriteConcernResolver.INSTANCE;
+
+		this.bulk = initBulkOperation();
+	}
+
+	/**
+	 * Configures the {@link PersistenceExceptionTranslator} to be used. Defaults to {@link MongoExceptionTranslator}.
+	 * 
+	 * @param exceptionTranslator can be {@literal null}.
+	 */
+	public void setExceptionTranslator(PersistenceExceptionTranslator exceptionTranslator) {
+		this.exceptionTranslator = exceptionTranslator == null ? new MongoExceptionTranslator() : exceptionTranslator;
+	}
+
+	/**
+	 * Configures the {@link WriteConcernResolver} to be used. Defaults to {@link DefaultWriteConcernResolver}.
+	 * 
+	 * @param writeConcernResolver can be {@literal null}.
+	 */
+	public void setWriteConcernResolver(WriteConcernResolver writeConcernResolver) {
+		this.writeConcernResolver = writeConcernResolver == null ? DefaultWriteConcernResolver.INSTANCE
+				: writeConcernResolver;
+	}
+
+	/**
+	 * Configures the default {@link WriteConcern} to be used. Defaults to {@literal null}.
+	 * 
+	 * @param defaultWriteConcern can be {@literal null}.
+	 */
+	public void setDefaultWriteConcern(WriteConcern defaultWriteConcern) {
+		this.defaultWriteConcern = defaultWriteConcern;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#insert(java.lang.Object)
+	 */
+	@Override
+	public BulkOperations insert(Object document) {
+
+		Assert.notNull(document, "Document must not be null!");
+
+		bulk.insert((DBObject) mongoOperations.getConverter().convertToMongoType(document));
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#insert(java.util.List)
+	 */
+	@Override
+	public BulkOperations insert(List<? extends Object> documents) {
+
+		Assert.notNull(documents, "Documents must not be null!");
+
+		for (Object document : documents) {
+			insert(document);
+		}
+
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#updateOne(org.springframework.data.mongodb.core.query.Query, org.springframework.data.mongodb.core.query.Update)
+	 */
+	@Override
+	@SuppressWarnings("unchecked")
+	public BulkOperations updateOne(Query query, Update update) {
+
+		Assert.notNull(query, "Query must not be null!");
+		Assert.notNull(update, "Update must not be null!");
+
+		return updateOne(Arrays.asList(Tuple.of(query, update)));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#updateOne(java.util.List)
+	 */
+	@Override
+	public BulkOperations updateOne(List<Tuple<Query, Update>> updates) {
+
+		Assert.notNull(updates, "Updates must not be null!");
+
+		for (Tuple<Query, Update> update : updates) {
+			update(update.getFirst(), update.getSecond(), false, false);
+		}
+
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#updateMulti(org.springframework.data.mongodb.core.query.Query, org.springframework.data.mongodb.core.query.Update)
+	 */
+	@Override
+	@SuppressWarnings("unchecked")
+	public BulkOperations updateMulti(Query query, Update update) {
+
+		Assert.notNull(query, "Query must not be null!");
+		Assert.notNull(update, "Update must not be null!");
+
+		return updateMulti(Arrays.asList(Tuple.of(query, update)));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#updateMulti(java.util.List)
+	 */
+	@Override
+	public BulkOperations updateMulti(List<Tuple<Query, Update>> updates) {
+
+		Assert.notNull(updates, "Updates must not be null!");
+
+		for (Tuple<Query, Update> update : updates) {
+			update(update.getFirst(), update.getSecond(), false, true);
+		}
+
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#upsert(org.springframework.data.mongodb.core.query.Query, org.springframework.data.mongodb.core.query.Update)
+	 */
+	@Override
+	public BulkOperations upsert(Query query, Update update) {
+		return update(query, update, true, true);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#upsert(java.util.List)
+	 */
+	@Override
+	public BulkOperations upsert(List<Tuple<Query, Update>> updates) {
+
+		for (Tuple<Query, Update> update : updates) {
+			upsert(update.getFirst(), update.getSecond());
+		}
+
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#remove(org.springframework.data.mongodb.core.query.Query)
+	 */
+	@Override
+	public BulkOperations remove(Query query) {
+
+		Assert.notNull(query, "Query must not be null!");
+
+		bulk.find(query.getQueryObject()).remove();
+
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#remove(java.util.List)
+	 */
+	@Override
+	public BulkOperations remove(List<Query> removes) {
+
+		Assert.notNull(removes, "Removals must not be null!");
+
+		for (Query query : removes) {
+			remove(query);
+		}
+
+		return this;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.BulkOperations#executeBulk()
+	 */
+	@Override
+	public BulkWriteResult execute() {
+
+		MongoAction action = new MongoAction(defaultWriteConcern, MongoActionOperation.BULK, collectionName, entityType,
+				null, null);
+		WriteConcern writeConcern = writeConcernResolver.resolve(action);
+
+		try {
+
+			return writeConcern == null ? bulk.execute() : bulk.execute(writeConcern);
+
+		} catch (BulkWriteException o_O) {
+
+			DataAccessException toThrow = exceptionTranslator.translateExceptionIfPossible(o_O);
+			throw toThrow == null ? o_O : toThrow;
+
+		} finally {
+			this.bulk = initBulkOperation();
+		}
+	}
+
+	/**
+	 * Performs update and upsert bulk operations.
+	 * 
+	 * @param query the {@link Query} to determine documents to update.
+	 * @param update the {@link Update} to perform, must not be {@literal null}.
+	 * @param upsert whether to upsert.
+	 * @param multi whether to issue a multi-update.
+	 * @return the {@link BulkOperations} with the update registered.
+	 */
+	private BulkOperations update(Query query, Update update, boolean upsert, boolean multi) {
+
+		Assert.notNull(query, "Query must not be null!");
+		Assert.notNull(update, "Update must not be null!");
+
+		BulkWriteRequestBuilder builder = bulk.find(query.getQueryObject());
+
+		if (upsert) {
+
+			if (multi) {
+				builder.upsert().update(update.getUpdateObject());
+			} else {
+				builder.upsert().updateOne(update.getUpdateObject());
+			}
+
+		} else {
+
+			if (multi) {
+				builder.update(update.getUpdateObject());
+			} else {
+				builder.updateOne(update.getUpdateObject());
+			}
+		}
+
+		return this;
+	}
+
+	private final BulkWriteOperation initBulkOperation() {
+
+		DBCollection collection = mongoOperations.getCollection(collectionName);
+
+		switch (bulkMode) {
+			case ORDERED:
+				return collection.initializeOrderedBulkOperation();
+			case UNORDERED:
+				return collection.initializeUnorderedBulkOperation();
+		}
+
+		throw new IllegalStateException("BulkMode was null!");
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultIndexOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,8 @@ package org.springframework.data.mongodb.core;
 import static org.springframework.data.domain.Sort.Direction.*;
 
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
 import java.util.List;
 
 import org.springframework.dao.DataAccessException;
@@ -36,11 +38,13 @@ import com.mongodb.MongoException;
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Komi Innocent
+ * @author Christoph Strobl
  */
 public class DefaultIndexOperations implements IndexOperations {
 
 	private static final Double ONE = Double.valueOf(1);
 	private static final Double MINUS_ONE = Double.valueOf(-1);
+	private static final Collection<String> TWO_D_IDENTIFIERS = Arrays.asList("2d", "2dsphere");
 
 	private final MongoOperations mongoOperations;
 	private final String collectionName;
@@ -69,9 +73,9 @@ public class DefaultIndexOperations implements IndexOperations {
 			public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
 				DBObject indexOptions = indexDefinition.getIndexOptions();
 				if (indexOptions != null) {
-					collection.ensureIndex(indexDefinition.getIndexKeys(), indexOptions);
+					collection.createIndex(indexDefinition.getIndexKeys(), indexOptions);
 				} else {
-					collection.ensureIndex(indexDefinition.getIndexKeys());
+					collection.createIndex(indexDefinition.getIndexKeys());
 				}
 				return null;
 			}
@@ -104,10 +108,12 @@ public class DefaultIndexOperations implements IndexOperations {
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.IndexOperations#resetIndexCache()
 	 */
+	@Deprecated
 	public void resetIndexCache() {
 		mongoOperations.execute(collectionName, new CollectionCallback<Void>() {
 			public Void doInCollection(DBCollection collection) throws MongoException, DataAccessException {
-				collection.resetIndexCache();
+
+				ReflectiveDBCollectionInvoker.resetIndexCache(collection);
 				return null;
 			}
 		});
@@ -140,8 +146,15 @@ public class DefaultIndexOperations implements IndexOperations {
 
 						Object value = keyDbObject.get(key);
 
-						if ("2d".equals(value)) {
+						if (TWO_D_IDENTIFIERS.contains(value)) {
 							indexFields.add(IndexField.geo(key));
+						} else if ("text".equals(value)) {
+
+							DBObject weights = (DBObject) ix.get("weights");
+							for (String fieldName : weights.keySet()) {
+								indexFields.add(IndexField.text(fieldName, Float.valueOf(weights.get(fieldName).toString())));
+							}
+
 						} else {
 
 							Double keyValue = new Double(value.toString());
@@ -159,8 +172,8 @@ public class DefaultIndexOperations implements IndexOperations {
 					boolean unique = ix.containsField("unique") ? (Boolean) ix.get("unique") : false;
 					boolean dropDuplicates = ix.containsField("dropDups") ? (Boolean) ix.get("dropDups") : false;
 					boolean sparse = ix.containsField("sparse") ? (Boolean) ix.get("sparse") : false;
-
-					indexInfoList.add(new IndexInfo(indexFields, name, unique, dropDuplicates, sparse));
+					String language = ix.containsField("default_language") ? (String) ix.get("default_language") : "";
+					indexInfoList.add(new IndexInfo(indexFields, name, unique, dropDuplicates, sparse, language));
 				}
 
 				return indexInfoList;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultScriptOperations.java

@@ -0,0 +1,188 @@
+/*
+ * Copyright 2014-2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static java.util.UUID.*;
+import static org.springframework.data.mongodb.core.query.Criteria.*;
+import static org.springframework.data.mongodb.core.query.Query.*;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.bson.types.ObjectId;
+import org.springframework.dao.DataAccessException;
+import org.springframework.data.mongodb.core.script.ExecutableMongoScript;
+import org.springframework.data.mongodb.core.script.NamedMongoScript;
+import org.springframework.util.Assert;
+import org.springframework.util.CollectionUtils;
+import org.springframework.util.ObjectUtils;
+import org.springframework.util.StringUtils;
+
+import com.mongodb.DB;
+import com.mongodb.MongoException;
+
+/**
+ * Default implementation of {@link ScriptOperations} capable of saving and executing {@link ServerSideJavaScript}.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+class DefaultScriptOperations implements ScriptOperations {
+
+	private static final String SCRIPT_COLLECTION_NAME = "system.js";
+	private static final String SCRIPT_NAME_PREFIX = "func_";
+
+	private final MongoOperations mongoOperations;
+
+	/**
+	 * Creates new {@link DefaultScriptOperations} using given {@link MongoOperations}.
+	 * 
+	 * @param mongoOperations must not be {@literal null}.
+	 */
+	public DefaultScriptOperations(MongoOperations mongoOperations) {
+
+		Assert.notNull(mongoOperations, "MongoOperations must not be null!");
+
+		this.mongoOperations = mongoOperations;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.ScriptOperations#register(org.springframework.data.mongodb.core.script.ExecutableMongoScript)
+	 */
+	@Override
+	public NamedMongoScript register(ExecutableMongoScript script) {
+		return register(new NamedMongoScript(generateScriptName(), script));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.ScriptOperations#register(org.springframework.data.mongodb.core.script.NamedMongoScript)
+	 */
+	@Override
+	public NamedMongoScript register(NamedMongoScript script) {
+
+		Assert.notNull(script, "Script must not be null!");
+
+		mongoOperations.save(script, SCRIPT_COLLECTION_NAME);
+		return script;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.ScriptOperations#execute(org.springframework.data.mongodb.core.script.ExecutableMongoScript, java.lang.Object[])
+	 */
+	@Override
+	public Object execute(final ExecutableMongoScript script, final Object... args) {
+
+		Assert.notNull(script, "Script must not be null!");
+
+		return mongoOperations.execute(new DbCallback<Object>() {
+
+			@Override
+			public Object doInDB(DB db) throws MongoException, DataAccessException {
+				return db.eval(script.getCode(), convertScriptArgs(args));
+			}
+		});
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.ScriptOperations#call(java.lang.String, java.lang.Object[])
+	 */
+	@Override
+	public Object call(final String scriptName, final Object... args) {
+
+		Assert.hasText(scriptName, "ScriptName must not be null or empty!");
+
+		return mongoOperations.execute(new DbCallback<Object>() {
+
+			@Override
+			public Object doInDB(DB db) throws MongoException, DataAccessException {
+				return db.eval(String.format("%s(%s)", scriptName, convertAndJoinScriptArgs(args)));
+			}
+		});
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.ScriptOperations#exists(java.lang.String)
+	 */
+	@Override
+	public boolean exists(String scriptName) {
+
+		Assert.hasText(scriptName, "ScriptName must not be null or empty!");
+
+		return mongoOperations.exists(query(where("name").is(scriptName)), NamedMongoScript.class, SCRIPT_COLLECTION_NAME);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.ScriptOperations#getScriptNames()
+	 */
+	@Override
+	public Set<String> getScriptNames() {
+
+		List<NamedMongoScript> scripts = mongoOperations.findAll(NamedMongoScript.class, SCRIPT_COLLECTION_NAME);
+
+		if (CollectionUtils.isEmpty(scripts)) {
+			return Collections.emptySet();
+		}
+
+		Set<String> scriptNames = new HashSet<String>();
+
+		for (NamedMongoScript script : scripts) {
+			scriptNames.add(script.getName());
+		}
+
+		return scriptNames;
+	}
+
+	private Object[] convertScriptArgs(Object... args) {
+
+		if (ObjectUtils.isEmpty(args)) {
+			return args;
+		}
+
+		List<Object> convertedValues = new ArrayList<Object>(args.length);
+
+		for (Object arg : args) {
+			convertedValues.add(arg instanceof String ? String.format("'%s'", arg) : this.mongoOperations.getConverter()
+					.convertToMongoType(arg));
+		}
+
+		return convertedValues.toArray();
+	}
+
+	private String convertAndJoinScriptArgs(Object... args) {
+		return ObjectUtils.isEmpty(args) ? "" : StringUtils.arrayToCommaDelimitedString(convertScriptArgs(args));
+	}
+
+	/**
+	 * Generate a valid name for the {@literal JavaScript}. MongoDB requires an id of type String for scripts. Calling
+	 * scripts having {@link ObjectId} as id fails. Therefore we create a random UUID without {@code -} (as this won't
+	 * work) an prefix the result with {@link #SCRIPT_NAME_PREFIX}.
+	 * 
+	 * @return
+	 */
+	private static String generateScriptName() {
+		return SCRIPT_NAME_PREFIX + randomUUID().toString().replaceAll("-", "");
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultWriteConcernResolver.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import com.mongodb.WriteConcern;
+
+/**
+ * Default {@link WriteConcernResolver} resolving the {@link WriteConcern} from the given {@link MongoAction}.
+ *
+ * @author Oliver Gierke
+ */
+enum DefaultWriteConcernResolver implements WriteConcernResolver {
+
+	INSTANCE;
+
+	public WriteConcern resolve(MongoAction action) {
+		return action.getDefaultWriteConcern();
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/GeoCommandStatistics.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import org.springframework.util.Assert;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
+
+/**
+ * Value object to mitigate different representations of geo command execution results in MongoDB.
+ * 
+ * @author Oliver Gierke
+ * @soundtrack Fruitcake - Jeff Coffin (The Inside of the Outside)
+ */
+class GeoCommandStatistics {
+
+	private static final GeoCommandStatistics NONE = new GeoCommandStatistics(new BasicDBObject());
+
+	private final DBObject source;
+
+	/**
+	 * Creates a new {@link GeoCommandStatistics} instance with the given source document.
+	 * 
+	 * @param source must not be {@literal null}.
+	 */
+	private GeoCommandStatistics(DBObject source) {
+
+		Assert.notNull(source, "Source document must not be null!");
+		this.source = source;
+	}
+
+	/**
+	 * Creates a new {@link GeoCommandStatistics} from the given command result extracting the statistics.
+	 * 
+	 * @param commandResult must not be {@literal null}.
+	 * @return
+	 */
+	public static GeoCommandStatistics from(DBObject commandResult) {
+
+		Assert.notNull(commandResult, "Command result must not be null!");
+
+		Object stats = commandResult.get("stats");
+		return stats == null ? NONE : new GeoCommandStatistics((DBObject) stats);
+	}
+
+	/**
+	 * Returns the average distance reported by the command result. Mitigating a removal of the field in case the command
+	 * didn't return any result introduced in MongoDB 3.2 RC1.
+	 * 
+	 * @return
+	 * @see https://jira.mongodb.org/browse/SERVER-21024
+	 */
+	public double getAverageDistance() {
+
+		Object averageDistance = source.get("avgDistance");
+		return averageDistance == null ? Double.NaN : (Double) averageDistance;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/GeoJsonConfiguration.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.data.mongodb.core.geo.GeoJsonModule;
+import org.springframework.data.web.config.SpringDataWebConfigurationMixin;
+
+/**
+ * Configuration class to expose {@link GeoJsonModule} as a Spring bean.
+ * 
+ * @author Oliver Gierke
+ */
+@SpringDataWebConfigurationMixin
+public class GeoJsonConfiguration {
+
+	@Bean
+	public GeoJsonModule geoJsonModule() {
+		return new GeoJsonModule();
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/IndexOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,12 +20,12 @@ import java.util.List;
 import org.springframework.data.mongodb.core.index.IndexDefinition;
 import org.springframework.data.mongodb.core.index.IndexInfo;
 
-
 /**
  * Index operations on a collection.
  * 
  * @author Mark Pollack
  * @author Oliver Gierke
+ * @author Christoph Strobl
  */
 public interface IndexOperations {
 
@@ -51,7 +51,11 @@ public interface IndexOperations {
 
 	/**
 	 * Clears all indices that have not yet been applied to this collection.
+	 * 
+	 * @deprecated since 1.7. The MongoDB Java driver version 3.0 does no longer support reseting the index cache.
+	 * @throws {@link UnsupportedOperationException} when used with MongoDB Java driver version 3.0.
 	 */
+	@Deprecated
 	void resetIndexCache();
 
 	/**

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAction.java

@@ -49,7 +49,7 @@ public class MongoAction {
 	 * @param collectionName the collection name, must not be {@literal null} or empty.
 	 * @param entityType the POJO that is being operated against
 	 * @param document the converted DBObject from the POJO or Spring Update object
-	 * @param query the converted DBOjbect from the Spring Query object
+	 * @param query the converted DBObject from the Spring Query object
 	 */
 	public MongoAction(WriteConcern defaultWriteConcern, MongoActionOperation mongoActionOperation,
 			String collectionName, Class<?> entityType, DBObject document, DBObject query) {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoActionOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2012 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,5 +25,5 @@ package org.springframework.data.mongodb.core;
  */
 public enum MongoActionOperation {
 
-	REMOVE, UPDATE, INSERT, INSERT_LIST, SAVE
+	REMOVE, UPDATE, INSERT, INSERT_LIST, SAVE, BULK;
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAdminOperations.java

@@ -1,16 +1,34 @@
+/*
+ * Copyright 2011-2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.mongodb.core;
 
 import org.springframework.jmx.export.annotation.ManagedOperation;
 
+/**
+ * @author Mark Pollack
+ * @author Oliver Gierke
+ */
 public interface MongoAdminOperations {
 
 	@ManagedOperation
-	public abstract void dropDatabase(String databaseName);
+	void dropDatabase(String databaseName);
 
 	@ManagedOperation
-	public abstract void createDatabase(String databaseName);
+	void createDatabase(String databaseName);
 
 	@ManagedOperation
-	public abstract String getDatabaseStats(String databaseName);
-
-}
+	String getDatabaseStats(String databaseName);
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoClientFactoryBean.java

@@ -0,0 +1,189 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.springframework.beans.factory.config.AbstractFactoryBean;
+import org.springframework.dao.DataAccessException;
+import org.springframework.dao.support.PersistenceExceptionTranslator;
+import org.springframework.util.CollectionUtils;
+import org.springframework.util.StringUtils;
+
+import com.mongodb.Mongo;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoClientOptions;
+import com.mongodb.MongoCredential;
+import com.mongodb.ServerAddress;
+
+/**
+ * Convenient factory for configuring MongoDB.
+ * 
+ * @author Christoph Strobl
+ * @since 1.7
+ */
+public class MongoClientFactoryBean extends AbstractFactoryBean<Mongo> implements PersistenceExceptionTranslator {
+
+	private static final PersistenceExceptionTranslator DEFAULT_EXCEPTION_TRANSLATOR = new MongoExceptionTranslator();
+
+	private MongoClientOptions mongoClientOptions;
+	private String host;
+	private Integer port;
+	private List<ServerAddress> replicaSetSeeds;
+	private List<MongoCredential> credentials;
+
+	private PersistenceExceptionTranslator exceptionTranslator = DEFAULT_EXCEPTION_TRANSLATOR;
+
+	/**
+	 * Set the {@link MongoClientOptions} to be used when creating {@link MongoClient}.
+	 * 
+	 * @param mongoClientOptions
+	 */
+	public void setMongoClientOptions(MongoClientOptions mongoClientOptions) {
+		this.mongoClientOptions = mongoClientOptions;
+	}
+
+	/**
+	 * Set the list of credentials to be used when creating {@link MongoClient}.
+	 * 
+	 * @param credentials can be {@literal null}.
+	 */
+	public void setCredentials(MongoCredential[] credentials) {
+		this.credentials = filterNonNullElementsAsList(credentials);
+	}
+
+	/**
+	 * Set the list of {@link ServerAddress} to build up a replica set for.
+	 * 
+	 * @param replicaSetSeeds can be {@literal null}.
+	 */
+	public void setReplicaSetSeeds(ServerAddress[] replicaSetSeeds) {
+		this.replicaSetSeeds = filterNonNullElementsAsList(replicaSetSeeds);
+	}
+
+	/**
+	 * Configures the host to connect to.
+	 * 
+	 * @param host
+	 */
+	public void setHost(String host) {
+		this.host = host;
+	}
+
+	/**
+	 * Configures the port to connect to.
+	 * 
+	 * @param port
+	 */
+	public void setPort(int port) {
+		this.port = port;
+	}
+
+	/**
+	 * Configures the {@link PersistenceExceptionTranslator} to use.
+	 * 
+	 * @param exceptionTranslator
+	 */
+	public void setExceptionTranslator(PersistenceExceptionTranslator exceptionTranslator) {
+		this.exceptionTranslator = exceptionTranslator == null ? DEFAULT_EXCEPTION_TRANSLATOR : exceptionTranslator;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.FactoryBean#getObjectType()
+	 */
+	public Class<? extends Mongo> getObjectType() {
+		return Mongo.class;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.dao.support.PersistenceExceptionTranslator#translateExceptionIfPossible(java.lang.RuntimeException)
+	 */
+	public DataAccessException translateExceptionIfPossible(RuntimeException ex) {
+		return exceptionTranslator.translateExceptionIfPossible(ex);
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.config.AbstractFactoryBean#createInstance()
+	 */
+	@Override
+	protected Mongo createInstance() throws Exception {
+
+		if (mongoClientOptions == null) {
+			mongoClientOptions = MongoClientOptions.builder().build();
+		}
+
+		if (credentials == null) {
+			credentials = Collections.emptyList();
+		}
+
+		return createMongoClient();
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.config.AbstractFactoryBean#destroyInstance(java.lang.Object)
+	 */
+	@Override
+	protected void destroyInstance(Mongo instance) throws Exception {
+		instance.close();
+	}
+
+	private MongoClient createMongoClient() throws UnknownHostException {
+
+		if (!CollectionUtils.isEmpty(replicaSetSeeds)) {
+			return new MongoClient(replicaSetSeeds, credentials, mongoClientOptions);
+		}
+
+		return new MongoClient(createConfiguredOrDefaultServerAddress(), credentials, mongoClientOptions);
+	}
+
+	private ServerAddress createConfiguredOrDefaultServerAddress() throws UnknownHostException {
+
+		ServerAddress defaultAddress = new ServerAddress();
+
+		return new ServerAddress(StringUtils.hasText(host) ? host : defaultAddress.getHost(),
+				port != null ? port.intValue() : defaultAddress.getPort());
+	}
+
+	/**
+	 * Returns the given array as {@link List} with all {@literal null} elements removed.
+	 * 
+	 * @param elements the elements to filter <T>, can be {@literal null}.
+	 * @return a new unmodifiable {@link List#} from the given elements without {@literal null}s.
+	 */
+	private static <T> List<T> filterNonNullElementsAsList(T[] elements) {
+
+		if (elements == null) {
+			return Collections.emptyList();
+		}
+
+		List<T> candidateElements = new ArrayList<T>();
+
+		for (T element : elements) {
+			if (element != null) {
+				candidateElements.add(element);
+			}
+		}
+
+		return Collections.unmodifiableList(candidateElements);
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoClientOptionsFactoryBean.java

@@ -0,0 +1,295 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import javax.net.SocketFactory;
+import javax.net.ssl.SSLSocketFactory;
+
+import org.springframework.beans.factory.config.AbstractFactoryBean;
+import org.springframework.data.mongodb.MongoDbFactory;
+
+import com.mongodb.DBDecoderFactory;
+import com.mongodb.DBEncoderFactory;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoClientOptions;
+import com.mongodb.ReadPreference;
+import com.mongodb.WriteConcern;
+
+/**
+ * A factory bean for construction of a {@link MongoClientOptions} instance.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+public class MongoClientOptionsFactoryBean extends AbstractFactoryBean<MongoClientOptions> {
+
+	private static final MongoClientOptions DEFAULT_MONGO_OPTIONS = MongoClientOptions.builder().build();
+
+	private String description = DEFAULT_MONGO_OPTIONS.getDescription();
+	private int minConnectionsPerHost = DEFAULT_MONGO_OPTIONS.getMinConnectionsPerHost();
+	private int connectionsPerHost = DEFAULT_MONGO_OPTIONS.getConnectionsPerHost();
+	private int threadsAllowedToBlockForConnectionMultiplier = DEFAULT_MONGO_OPTIONS
+			.getThreadsAllowedToBlockForConnectionMultiplier();
+	private int maxWaitTime = DEFAULT_MONGO_OPTIONS.getMaxWaitTime();
+	private int maxConnectionIdleTime = DEFAULT_MONGO_OPTIONS.getMaxConnectionIdleTime();
+	private int maxConnectionLifeTime = DEFAULT_MONGO_OPTIONS.getMaxConnectionLifeTime();
+	private int connectTimeout = DEFAULT_MONGO_OPTIONS.getConnectTimeout();
+	private int socketTimeout = DEFAULT_MONGO_OPTIONS.getSocketTimeout();
+	private boolean socketKeepAlive = DEFAULT_MONGO_OPTIONS.isSocketKeepAlive();
+	private ReadPreference readPreference = DEFAULT_MONGO_OPTIONS.getReadPreference();
+	private DBDecoderFactory dbDecoderFactory = DEFAULT_MONGO_OPTIONS.getDbDecoderFactory();
+	private DBEncoderFactory dbEncoderFactory = DEFAULT_MONGO_OPTIONS.getDbEncoderFactory();
+	private WriteConcern writeConcern = DEFAULT_MONGO_OPTIONS.getWriteConcern();
+	private SocketFactory socketFactory = DEFAULT_MONGO_OPTIONS.getSocketFactory();
+	private boolean cursorFinalizerEnabled = DEFAULT_MONGO_OPTIONS.isCursorFinalizerEnabled();
+	private boolean alwaysUseMBeans = DEFAULT_MONGO_OPTIONS.isAlwaysUseMBeans();
+	private int heartbeatFrequency = DEFAULT_MONGO_OPTIONS.getHeartbeatFrequency();
+	private int minHeartbeatFrequency = DEFAULT_MONGO_OPTIONS.getMinHeartbeatFrequency();
+	private int heartbeatConnectTimeout = DEFAULT_MONGO_OPTIONS.getHeartbeatConnectTimeout();
+	private int heartbeatSocketTimeout = DEFAULT_MONGO_OPTIONS.getHeartbeatSocketTimeout();
+	private String requiredReplicaSetName = DEFAULT_MONGO_OPTIONS.getRequiredReplicaSetName();
+
+	private boolean ssl;
+	private SSLSocketFactory sslSocketFactory;
+
+	/**
+	 * Set the {@link MongoClient} description.
+	 * 
+	 * @param description
+	 */
+	public void setDescription(String description) {
+		this.description = description;
+	}
+
+	/**
+	 * Set the minimum number of connections per host.
+	 * 
+	 * @param minConnectionsPerHost
+	 */
+	public void setMinConnectionsPerHost(int minConnectionsPerHost) {
+		this.minConnectionsPerHost = minConnectionsPerHost;
+	}
+
+	/**
+	 * Set the number of connections allowed per host. Will block if run out. Default is 10. System property
+	 * {@code MONGO.POOLSIZE} can override
+	 * 
+	 * @param connectionsPerHost
+	 */
+	public void setConnectionsPerHost(int connectionsPerHost) {
+		this.connectionsPerHost = connectionsPerHost;
+	}
+
+	/**
+	 * Set the multiplier for connectionsPerHost for # of threads that can block. Default is 5. If connectionsPerHost is
+	 * 10, and threadsAllowedToBlockForConnectionMultiplier is 5, then 50 threads can block more than that and an
+	 * exception will be thrown.
+	 * 
+	 * @param threadsAllowedToBlockForConnectionMultiplier
+	 */
+	public void setThreadsAllowedToBlockForConnectionMultiplier(int threadsAllowedToBlockForConnectionMultiplier) {
+		this.threadsAllowedToBlockForConnectionMultiplier = threadsAllowedToBlockForConnectionMultiplier;
+	}
+
+	/**
+	 * Set the max wait time of a blocking thread for a connection. Default is 12000 ms (2 minutes)
+	 * 
+	 * @param maxWaitTime
+	 */
+	public void setMaxWaitTime(int maxWaitTime) {
+		this.maxWaitTime = maxWaitTime;
+	}
+
+	/**
+	 * The maximum idle time for a pooled connection.
+	 * 
+	 * @param maxConnectionIdleTime
+	 */
+	public void setMaxConnectionIdleTime(int maxConnectionIdleTime) {
+		this.maxConnectionIdleTime = maxConnectionIdleTime;
+	}
+
+	/**
+	 * Set the maximum life time for a pooled connection.
+	 * 
+	 * @param maxConnectionLifeTime
+	 */
+	public void setMaxConnectionLifeTime(int maxConnectionLifeTime) {
+		this.maxConnectionLifeTime = maxConnectionLifeTime;
+	}
+
+	/**
+	 * Set the connect timeout in milliseconds. 0 is default and infinite.
+	 * 
+	 * @param connectTimeout
+	 */
+	public void setConnectTimeout(int connectTimeout) {
+		this.connectTimeout = connectTimeout;
+	}
+
+	/**
+	 * Set the socket timeout. 0 is default and infinite.
+	 * 
+	 * @param socketTimeout
+	 */
+	public void setSocketTimeout(int socketTimeout) {
+		this.socketTimeout = socketTimeout;
+	}
+
+	/**
+	 * Set the keep alive flag, controls whether or not to have socket keep alive timeout. Defaults to false.
+	 * 
+	 * @param socketKeepAlive
+	 */
+	public void setSocketKeepAlive(boolean socketKeepAlive) {
+		this.socketKeepAlive = socketKeepAlive;
+	}
+
+	/**
+	 * Set the {@link ReadPreference}.
+	 * 
+	 * @param readPreference
+	 */
+	public void setReadPreference(ReadPreference readPreference) {
+		this.readPreference = readPreference;
+	}
+
+	/**
+	 * Set the {@link WriteConcern} that will be the default value used when asking the {@link MongoDbFactory} for a DB
+	 * object.
+	 * 
+	 * @param writeConcern
+	 */
+	public void setWriteConcern(WriteConcern writeConcern) {
+		this.writeConcern = writeConcern;
+	}
+
+	/**
+	 * @param socketFactory
+	 */
+	public void setSocketFactory(SocketFactory socketFactory) {
+		this.socketFactory = socketFactory;
+	}
+
+	/**
+	 * Set the frequency that the driver will attempt to determine the current state of each server in the cluster.
+	 * 
+	 * @param heartbeatFrequency
+	 */
+	public void setHeartbeatFrequency(int heartbeatFrequency) {
+		this.heartbeatFrequency = heartbeatFrequency;
+	}
+
+	/**
+	 * In the event that the driver has to frequently re-check a server's availability, it will wait at least this long
+	 * since the previous check to avoid wasted effort.
+	 * 
+	 * @param minHeartbeatFrequency
+	 */
+	public void setMinHeartbeatFrequency(int minHeartbeatFrequency) {
+		this.minHeartbeatFrequency = minHeartbeatFrequency;
+	}
+
+	/**
+	 * Set the connect timeout for connections used for the cluster heartbeat.
+	 * 
+	 * @param heartbeatConnectTimeout
+	 */
+	public void setHeartbeatConnectTimeout(int heartbeatConnectTimeout) {
+		this.heartbeatConnectTimeout = heartbeatConnectTimeout;
+	}
+
+	/**
+	 * Set the socket timeout for connections used for the cluster heartbeat.
+	 * 
+	 * @param heartbeatSocketTimeout
+	 */
+	public void setHeartbeatSocketTimeout(int heartbeatSocketTimeout) {
+		this.heartbeatSocketTimeout = heartbeatSocketTimeout;
+	}
+
+	/**
+	 * Configures the name of the replica set.
+	 * 
+	 * @param requiredReplicaSetName
+	 */
+	public void setRequiredReplicaSetName(String requiredReplicaSetName) {
+		this.requiredReplicaSetName = requiredReplicaSetName;
+	}
+
+	/**
+	 * This controls if the driver should us an SSL connection. Defaults to |@literal false}.
+	 * 
+	 * @param ssl
+	 */
+	public void setSsl(boolean ssl) {
+		this.ssl = ssl;
+	}
+
+	/**
+	 * Set the {@link SSLSocketFactory} to use for the {@literal SSL} connection. If none is configured here,
+	 * {@link SSLSocketFactory#getDefault()} will be used.
+	 * 
+	 * @param sslSocketFactory
+	 */
+	public void setSslSocketFactory(SSLSocketFactory sslSocketFactory) {
+		this.sslSocketFactory = sslSocketFactory;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.config.AbstractFactoryBean#createInstance()
+	 */
+	@Override
+	protected MongoClientOptions createInstance() throws Exception {
+
+		SocketFactory socketFactoryToUse = ssl ? (sslSocketFactory != null ? sslSocketFactory : SSLSocketFactory
+				.getDefault()) : this.socketFactory;
+
+		return MongoClientOptions.builder() //
+				.alwaysUseMBeans(this.alwaysUseMBeans) //
+				.connectionsPerHost(this.connectionsPerHost) //
+				.connectTimeout(connectTimeout) //
+				.cursorFinalizerEnabled(cursorFinalizerEnabled) //
+				.dbDecoderFactory(dbDecoderFactory) //
+				.dbEncoderFactory(dbEncoderFactory) //
+				.description(description) //
+				.heartbeatConnectTimeout(heartbeatConnectTimeout) //
+				.heartbeatFrequency(heartbeatFrequency) //
+				.heartbeatSocketTimeout(heartbeatSocketTimeout) //
+				.maxConnectionIdleTime(maxConnectionIdleTime) //
+				.maxConnectionLifeTime(maxConnectionLifeTime) //
+				.maxWaitTime(maxWaitTime) //
+				.minConnectionsPerHost(minConnectionsPerHost) //
+				.minHeartbeatFrequency(minHeartbeatFrequency) //
+				.readPreference(readPreference) //
+				.requiredReplicaSetName(requiredReplicaSetName) //
+				.socketFactory(socketFactoryToUse) //
+				.socketKeepAlive(socketKeepAlive) //
+				.socketTimeout(socketTimeout) //
+				.threadsAllowedToBlockForConnectionMultiplier(threadsAllowedToBlockForConnectionMultiplier) //
+				.writeConcern(writeConcern).build();
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.FactoryBean#getObjectType()
+	 */
+	public Class<?> getObjectType() {
+		return MongoClientOptions.class;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoDbUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2013 the original author or authors.
+ * Copyright 2010-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,12 +18,13 @@ package org.springframework.data.mongodb.core;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.data.authentication.UserCredentials;
-import org.springframework.data.mongodb.CannotGetMongoDbConnectionException;
+import org.springframework.data.mongodb.util.MongoClientVersion;
 import org.springframework.transaction.support.TransactionSynchronizationManager;
 import org.springframework.util.Assert;
 
 import com.mongodb.DB;
 import com.mongodb.Mongo;
+import com.mongodb.MongoClient;
 
 /**
  * Helper class featuring helper methods for internal MongoDb classes. Mainly intended for internal use within the
@@ -34,6 +35,7 @@ import com.mongodb.Mongo;
  * @author Oliver Gierke
  * @author Randy Watler
  * @author Thomas Darimont
+ * @author Christoph Strobl
  * @since 1.0
  */
 public abstract class MongoDbUtils {
@@ -43,9 +45,7 @@ public abstract class MongoDbUtils {
 	/**
 	 * Private constructor to prevent instantiation.
 	 */
-	private MongoDbUtils() {
-
-	}
+	private MongoDbUtils() {}
 
 	/**
 	 * Obtains a {@link DB} connection for the given {@link Mongo} instance and database name
@@ -65,11 +65,24 @@ public abstract class MongoDbUtils {
 	 * @param databaseName the database name, must not be {@literal null} or empty.
 	 * @param credentials the credentials to use, must not be {@literal null}.
 	 * @return the {@link DB} connection
+	 * @deprecated since 1.7. The {@link MongoClient} itself should hold credentials within
+	 *             {@link MongoClient#getCredentialsList()}.
 	 */
+	@Deprecated
 	public static DB getDB(Mongo mongo, String databaseName, UserCredentials credentials) {
 		return getDB(mongo, databaseName, credentials, databaseName);
 	}
 
+	/**
+	 * @param mongo
+	 * @param databaseName
+	 * @param credentials
+	 * @param authenticationDatabaseName
+	 * @return
+	 * @deprecated since 1.7. The {@link MongoClient} itself should hold credentials within
+	 *             {@link MongoClient#getCredentialsList()}.
+	 */
+	@Deprecated
 	public static DB getDB(Mongo mongo, String databaseName, UserCredentials credentials,
 			String authenticationDatabaseName) {
 
@@ -109,22 +122,9 @@ public abstract class MongoDbUtils {
 		LOGGER.debug("Getting Mongo Database name=[{}]", databaseName);
 
 		DB db = mongo.getDB(databaseName);
-		boolean credentialsGiven = credentials.hasUsername() && credentials.hasPassword();
 
-		DB authDb = databaseName.equals(authenticationDatabaseName) ? db : mongo.getDB(authenticationDatabaseName);
-
-		synchronized (authDb) {
-
-			if (credentialsGiven && !authDb.isAuthenticated()) {
-
-				String username = credentials.getUsername();
-				String password = credentials.hasPassword() ? credentials.getPassword() : null;
-
-				if (!authDb.authenticate(username, password == null ? null : password.toCharArray())) {
-					throw new CannotGetMongoDbConnectionException("Failed to authenticate to database [" + databaseName + "], "
-							+ credentials.toString(), databaseName, credentials);
-				}
-			}
+		if (!(mongo instanceof MongoClient) && requiresAuthDbAuthentication(credentials)) {
+			ReflectiveDbInvoker.authenticate(mongo, db, credentials, authenticationDatabaseName);
 		}
 
 		// TX sync active, bind new database to thread
@@ -181,16 +181,36 @@ public abstract class MongoDbUtils {
 	 * Perform actual closing of the Mongo DB object, catching and logging any cleanup exceptions thrown.
 	 * 
 	 * @param db the DB to close (may be <code>null</code>)
+	 * @deprecated since 1.7. The main use case for this method is to ensure that applications can read their own
+	 *             unacknowledged writes, but this is no longer so prevalent since the MongoDB Java driver version 3
+	 *             started defaulting to acknowledged writes.
 	 */
+	@Deprecated
 	public static void closeDB(DB db) {
 
 		if (db != null) {
 			LOGGER.debug("Closing Mongo DB object");
 			try {
-				db.requestDone();
+				ReflectiveDbInvoker.requestDone(db);
 			} catch (Throwable ex) {
 				LOGGER.debug("Unexpected exception on closing Mongo DB object", ex);
 			}
 		}
 	}
+
+	/**
+	 * Check if credentials present. In case we're using a mongo-java-driver version 3 or above we do not have the need
+	 * for authentication as the auth data has to be provided within the MongoClient
+	 * 
+	 * @param credentials
+	 * @return
+	 */
+	private static boolean requiresAuthDbAuthentication(UserCredentials credentials) {
+
+		if (credentials == null || !credentials.hasUsername()) {
+			return false;
+		}
+
+		return !MongoClientVersion.isMongo3Driver();
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoExceptionTranslator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2013 the original author or authors.
+ * Copyright 2010-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,19 +15,25 @@
  */
 package org.springframework.data.mongodb.core;
 
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.DataAccessResourceFailureException;
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.dao.DuplicateKeyException;
 import org.springframework.dao.InvalidDataAccessApiUsageException;
 import org.springframework.dao.InvalidDataAccessResourceUsageException;
+import org.springframework.dao.PermissionDeniedDataAccessException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
+import org.springframework.data.mongodb.BulkOperationException;
 import org.springframework.data.mongodb.UncategorizedMongoDbException;
+import org.springframework.data.mongodb.util.MongoDbErrorCodes;
+import org.springframework.util.ClassUtils;
 
+import com.mongodb.BulkWriteException;
 import com.mongodb.MongoException;
-import com.mongodb.MongoException.CursorNotFound;
-import com.mongodb.MongoException.DuplicateKey;
-import com.mongodb.MongoException.Network;
-import com.mongodb.MongoInternalException;
 
 /**
  * Simple {@link PersistenceExceptionTranslator} for Mongo. Convert the given runtime exception to an appropriate
@@ -36,9 +42,23 @@ import com.mongodb.MongoInternalException;
  * 
  * @author Oliver Gierke
  * @author Michal Vich
+ * @author Christoph Strobl
  */
 public class MongoExceptionTranslator implements PersistenceExceptionTranslator {
 
+	private static final Set<String> DULICATE_KEY_EXCEPTIONS = new HashSet<String>(
+			Arrays.asList("MongoException.DuplicateKey", "DuplicateKeyException"));
+
+	private static final Set<String> RESOURCE_FAILURE_EXCEPTIONS = new HashSet<String>(
+			Arrays.asList("MongoException.Network", "MongoSocketException", "MongoException.CursorNotFound",
+					"MongoCursorNotFoundException", "MongoServerSelectionException", "MongoTimeoutException"));
+
+	private static final Set<String> RESOURCE_USAGE_EXCEPTIONS = new HashSet<String>(
+			Arrays.asList("MongoInternalException"));
+
+	private static final Set<String> DATA_INTEGRETY_EXCEPTIONS = new HashSet<String>(
+			Arrays.asList("WriteConcernException"));
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.dao.support.PersistenceExceptionTranslator#translateExceptionIfPossible(java.lang.RuntimeException)
@@ -47,33 +67,42 @@ public class MongoExceptionTranslator implements PersistenceExceptionTranslator
 
 		// Check for well-known MongoException subclasses.
 
-		// All other MongoExceptions
-		if (ex instanceof DuplicateKey) {
+		String exception = ClassUtils.getShortName(ClassUtils.getUserClass(ex.getClass()));
+
+		if (DULICATE_KEY_EXCEPTIONS.contains(exception)) {
 			return new DuplicateKeyException(ex.getMessage(), ex);
 		}
 
-		if (ex instanceof Network) {
+		if (RESOURCE_FAILURE_EXCEPTIONS.contains(exception)) {
 			return new DataAccessResourceFailureException(ex.getMessage(), ex);
 		}
 
-		if (ex instanceof CursorNotFound) {
-			return new DataAccessResourceFailureException(ex.getMessage(), ex);
-		}
-
-		if (ex instanceof MongoInternalException) {
+		if (RESOURCE_USAGE_EXCEPTIONS.contains(exception)) {
 			return new InvalidDataAccessResourceUsageException(ex.getMessage(), ex);
 		}
 
+		if (DATA_INTEGRETY_EXCEPTIONS.contains(exception)) {
+			return new DataIntegrityViolationException(ex.getMessage(), ex);
+		}
+
+		if (ex instanceof BulkWriteException) {
+			return new BulkOperationException(ex.getMessage(), (BulkWriteException) ex);
+		}
+
+		// All other MongoExceptions
 		if (ex instanceof MongoException) {
 
 			int code = ((MongoException) ex).getCode();
 
-			if (code == 11000 || code == 11001) {
+			if (MongoDbErrorCodes.isDuplicateKeyCode(code)) {
 				throw new DuplicateKeyException(ex.getMessage(), ex);
-			} else if (code == 12000 || code == 13440) {
+			} else if (MongoDbErrorCodes.isDataAccessResourceFailureCode(code)) {
 				throw new DataAccessResourceFailureException(ex.getMessage(), ex);
-			} else if (code == 10003 || code == 12001 || code == 12010 || code == 12011 || code == 12012) {
+			} else if (MongoDbErrorCodes.isInvalidDataAccessApiUsageCode(code) || code == 10003 || code == 12001
+					|| code == 12010 || code == 12011 || code == 12012) {
 				throw new InvalidDataAccessApiUsageException(ex.getMessage(), ex);
+			} else if (MongoDbErrorCodes.isPermissionDeniedCode(code)) {
+				throw new PermissionDeniedDataAccessException(ex.getMessage(), ex);
 			}
 			return new UncategorizedMongoDbException(ex.getMessage(), ex);
 		}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2013 the original author or authors.
+ * Copyright 2010-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +20,7 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 
-import org.springframework.beans.factory.DisposableBean;
-import org.springframework.beans.factory.FactoryBean;
-import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.config.AbstractFactoryBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
 import org.springframework.data.mongodb.CannotGetMongoDbConnectionException;
@@ -40,12 +38,14 @@ import com.mongodb.WriteConcern;
  * @author Graeme Rocher
  * @author Oliver Gierke
  * @author Thomas Darimont
+ * @author Christoph Strobl
  * @since 1.0
+ * @deprecated since 1.7. Please use {@link MongoClientFactoryBean} instead.
  */
-public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, DisposableBean,
-		PersistenceExceptionTranslator {
+@Deprecated
+public class MongoFactoryBean extends AbstractFactoryBean<Mongo> implements PersistenceExceptionTranslator {
 
-	private Mongo mongo;
+	private static final PersistenceExceptionTranslator DEFAULT_EXCEPTION_TRANSLATOR = new MongoExceptionTranslator();
 
 	private MongoOptions mongoOptions;
 	private String host;
@@ -53,9 +53,11 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 	private WriteConcern writeConcern;
 	private List<ServerAddress> replicaSetSeeds;
 	private List<ServerAddress> replicaPair;
+	private PersistenceExceptionTranslator exceptionTranslator = DEFAULT_EXCEPTION_TRANSLATOR;
 
-	private PersistenceExceptionTranslator exceptionTranslator = new MongoExceptionTranslator();
-
+	/**
+	 * @param mongoOptions
+	 */
 	public void setMongoOptions(MongoOptions mongoOptions) {
 		this.mongoOptions = mongoOptions;
 	}
@@ -66,7 +68,6 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 
 	/**
 	 * @deprecated use {@link #setReplicaSetSeeds(ServerAddress[])} instead
-	 * 
 	 * @param replicaPair
 	 */
 	@Deprecated
@@ -75,30 +76,19 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 	}
 
 	/**
-	 * @param elements the elements to filter <T>
-	 * @return a new unmodifiable {@link List#} from the given elements without nulls
+	 * Configures the host to connect to.
+	 * 
+	 * @param host
 	 */
-	private <T> List<T> filterNonNullElementsAsList(T[] elements) {
-
-		if (elements == null) {
-			return Collections.emptyList();
-		}
-
-		List<T> candidateElements = new ArrayList<T>();
-
-		for (T element : elements) {
-			if (element != null) {
-				candidateElements.add(element);
-			}
-		}
-
-		return Collections.unmodifiableList(candidateElements);
-	}
-
 	public void setHost(String host) {
 		this.host = host;
 	}
 
+	/**
+	 * Configures the port to connect to.
+	 * 
+	 * @param port
+	 */
 	public void setPort(int port) {
 		this.port = port;
 	}
@@ -112,12 +102,13 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 		this.writeConcern = writeConcern;
 	}
 
+	/**
+	 * Configures the {@link PersistenceExceptionTranslator} to use.
+	 * 
+	 * @param exceptionTranslator can be {@literal null}.
+	 */
 	public void setExceptionTranslator(PersistenceExceptionTranslator exceptionTranslator) {
-		this.exceptionTranslator = exceptionTranslator;
-	}
-
-	public Mongo getObject() throws Exception {
-		return mongo;
+		this.exceptionTranslator = exceptionTranslator == null ? DEFAULT_EXCEPTION_TRANSLATOR : exceptionTranslator;
 	}
 
 	/*
@@ -128,14 +119,6 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 		return Mongo.class;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.FactoryBean#isSingleton()
-	 */
-	public boolean isSingleton() {
-		return true;
-	}
-
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.dao.support.PersistenceExceptionTranslator#translateExceptionIfPossible(java.lang.RuntimeException)
@@ -146,10 +129,10 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 
 	/* 
 	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
+	 * @see org.springframework.beans.factory.config.AbstractFactoryBean#createInstance()
 	 */
-	@SuppressWarnings("deprecation")
-	public void afterPropertiesSet() throws Exception {
+	@Override
+	protected Mongo createInstance() throws Exception {
 
 		Mongo mongo;
 		ServerAddress defaultOptions = new ServerAddress();
@@ -175,18 +158,42 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, D
 			mongo.setWriteConcern(writeConcern);
 		}
 
-		this.mongo = mongo;
-	}
-
-	private boolean isNullOrEmpty(Collection<?> elements) {
-		return elements == null || elements.isEmpty();
+		return mongo;
 	}
 
 	/* 
 	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.DisposableBean#destroy()
+	 * @see org.springframework.beans.factory.config.AbstractFactoryBean#destroyInstance(java.lang.Object)
 	 */
-	public void destroy() throws Exception {
-		this.mongo.close();
+	@Override
+	protected void destroyInstance(Mongo mongo) throws Exception {
+		mongo.close();
+	}
+
+	private static boolean isNullOrEmpty(Collection<?> elements) {
+		return elements == null || elements.isEmpty();
+	}
+
+	/**
+	 * Returns the given array as {@link List} with all {@literal null} elements removed.
+	 * 
+	 * @param elements the elements to filter <T>
+	 * @return a new unmodifiable {@link List#} from the given elements without nulls
+	 */
+	private static <T> List<T> filterNonNullElementsAsList(T[] elements) {
+
+		if (elements == null) {
+			return Collections.emptyList();
+		}
+
+		List<T> candidateElements = new ArrayList<T>();
+
+		for (T element : elements) {
+			if (element != null) {
+				candidateElements.add(element);
+			}
+		}
+
+		return Collections.unmodifiableList(candidateElements);
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoOperations.java

@@ -1,6 +1,6 @@
 /*
- * Copyright 2010-2013 the original author or authors.
- *
+ * Copyright 2011-2015 the original author or authors.
+ * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -19,12 +19,12 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Set;
 
+import org.springframework.data.geo.GeoResults;
+import org.springframework.data.mongodb.core.BulkOperations.BulkMode;
 import org.springframework.data.mongodb.core.aggregation.Aggregation;
 import org.springframework.data.mongodb.core.aggregation.AggregationResults;
 import org.springframework.data.mongodb.core.aggregation.TypedAggregation;
 import org.springframework.data.mongodb.core.convert.MongoConverter;
-import org.springframework.data.mongodb.core.geo.GeoResult;
-import org.springframework.data.mongodb.core.geo.GeoResults;
 import org.springframework.data.mongodb.core.mapreduce.GroupBy;
 import org.springframework.data.mongodb.core.mapreduce.GroupByResults;
 import org.springframework.data.mongodb.core.mapreduce.MapReduceOptions;
@@ -34,10 +34,14 @@ import org.springframework.data.mongodb.core.query.Criteria;
 import org.springframework.data.mongodb.core.query.NearQuery;
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.data.util.CloseableIterator;
 
 import com.mongodb.CommandResult;
+import com.mongodb.Cursor;
+import com.mongodb.DB;
 import com.mongodb.DBCollection;
 import com.mongodb.DBObject;
+import com.mongodb.ReadPreference;
 import com.mongodb.WriteResult;
 
 /**
@@ -50,6 +54,8 @@ import com.mongodb.WriteResult;
  * @author Oliver Gierke
  * @author Tobias Trelle
  * @author Chuong Ngo
+ * @author Christoph Strobl
+ * @author Thomas Darimont
  */
 public interface MongoOperations {
 
@@ -84,9 +90,23 @@ public interface MongoOperations {
 	 * 
 	 * @param command a MongoDB command
 	 * @param options query options to use
+	 * @deprecated since 1.7. Please use {@link #executeCommand(DBObject, ReadPreference)}, as the MongoDB Java driver
+	 *             version 3 no longer supports this operation.
 	 */
+	@Deprecated
 	CommandResult executeCommand(DBObject command, int options);
 
+	/**
+	 * Execute a MongoDB command. Any errors that result from executing this command will be converted into Spring's data
+	 * access exception hierarchy.
+	 * 
+	 * @param command a MongoDB command, must not be {@literal null}.
+	 * @param readPreference read preferences to use, can be {@literal null}.
+	 * @return
+	 * @since 1.7
+	 */
+	CommandResult executeCommand(DBObject command, ReadPreference readPreference);
+
 	/**
 	 * Execute a MongoDB query and iterate over the query results on a per-document basis with a DocumentCallbackHandler.
 	 * 
@@ -142,9 +162,26 @@ public interface MongoOperations {
 	 * @param <T> return type
 	 * @param action callback that specified the MongoDB actions to perform on the DB instance
 	 * @return a result object returned by the action or <tt>null</tt>
+	 * @deprecated since 1.7 as the MongoDB Java driver version 3 does not longer support request boundaries via
+	 *             {@link DB#requestStart()} and {@link DB#requestDone()}.
 	 */
+	@Deprecated
 	<T> T executeInSession(DbCallback<T> action);
 
+	/**
+	 * Executes the given {@link Query} on the entity collection of the specified {@code entityType} backed by a Mongo DB
+	 * {@link Cursor}.
+	 * <p>
+	 * Returns a {@link CloseableIterator} that wraps the a Mongo DB {@link Cursor} that needs to be closed.
+	 * 
+	 * @param <T> element return type
+	 * @param query
+	 * @param entityType
+	 * @return
+	 * @since 1.7
+	 */
+	<T> CloseableIterator<T> stream(Query query, Class<T> entityType);
+
 	/**
 	 * Create an uncapped collection with a name based on the provided entity class.
 	 * 
@@ -154,7 +191,7 @@ public interface MongoOperations {
 	<T> DBCollection createCollection(Class<T> entityClass);
 
 	/**
-	 * Create a collect with a name based on the provided entity class using the options.
+	 * Create a collection with a name based on the provided entity class using the options.
 	 * 
 	 * @param entityClass class that determines the collection to create
 	 * @param collectionOptions options to use when creating the collection.
@@ -171,7 +208,7 @@ public interface MongoOperations {
 	DBCollection createCollection(String collectionName);
 
 	/**
-	 * Create a collect with the provided name and options.
+	 * Create a collection with the provided name and options.
 	 * 
 	 * @param collectionName name of the collection
 	 * @param collectionOptions options to use when creating the collection.
@@ -248,6 +285,42 @@ public interface MongoOperations {
 	 */
 	IndexOperations indexOps(Class<?> entityClass);
 
+	/**
+	 * Returns the {@link ScriptOperations} that can be performed on {@link com.mongodb.DB} level.
+	 * 
+	 * @return
+	 * @since 1.7
+	 */
+	ScriptOperations scriptOps();
+
+	/**
+	 * Returns a new {@link BulkOperations} for the given collection.
+	 * 
+	 * @param mode the {@link BulkMode} to use for bulk operations, must not be {@literal null}.
+	 * @param collectionName the name of the collection to work on, must not be {@literal null} or empty.
+	 * @return {@link BulkOperations} on the named collection
+	 */
+	BulkOperations bulkOps(BulkMode mode, String collectionName);
+
+	/**
+	 * Returns a new {@link BulkOperations} for the given entity type.
+	 * 
+	 * @param mode the {@link BulkMode} to use for bulk operations, must not be {@literal null}.
+	 * @param entityType the name of the entity class, must not be {@literal null}.
+	 * @return {@link BulkOperations} on the named collection associated of the given entity class.
+	 */
+	BulkOperations bulkOps(BulkMode mode, Class<?> entityType);
+
+	/**
+	 * Returns a new {@link BulkOperations} for the given entity type and collection name.
+	 * 
+	 * @param mode the {@link BulkMode} to use for bulk operations, must not be {@literal null}.
+	 * @param entityClass the name of the entity class, must not be {@literal null}.
+	 * @param collectionName the name of the collection to work on, must not be {@literal null} or empty.
+	 * @return {@link BulkOperations} on the named collection associated with the given entity class.
+	 */
+	BulkOperations bulkOps(BulkMode mode, Class<?> entityType, String collectionName);
+
 	/**
 	 * Query for a list of objects of type T from the collection used by the entity class.
 	 * <p/>
@@ -413,8 +486,10 @@ public interface MongoOperations {
 			MapReduceOptions mapReduceOptions, Class<T> entityClass);
 
 	/**
-	 * Returns {@link GeoResult} for all entities matching the given {@link NearQuery}. Will consider entity mapping
-	 * information to determine the collection the query is ran against.
+	 * Returns {@link GeoResults} for all entities matching the given {@link NearQuery}. Will consider entity mapping
+	 * information to determine the collection the query is ran against. Note, that MongoDB limits the number of results
+	 * by default. Make sure to add an explicit limit to the {@link NearQuery} if you expect a particular number of
+	 * results.
 	 * 
 	 * @param near must not be {@literal null}.
 	 * @param entityClass must not be {@literal null}.
@@ -423,7 +498,9 @@ public interface MongoOperations {
 	<T> GeoResults<T> geoNear(NearQuery near, Class<T> entityClass);
 
 	/**
-	 * Returns {@link GeoResult} for all entities matching the given {@link NearQuery}.
+	 * Returns {@link GeoResults} for all entities matching the given {@link NearQuery}. Note, that MongoDB limits the
+	 * number of results by default. Make sure to add an explicit limit to the {@link NearQuery} if you expect a
+	 * particular number of results.
 	 * 
 	 * @param near must not be {@literal null}.
 	 * @param entityClass must not be {@literal null}.
@@ -468,10 +545,32 @@ public interface MongoOperations {
 	 */
 	<T> T findOne(Query query, Class<T> entityClass, String collectionName);
 
+	/**
+	 * Determine result of given {@link Query} contains at least one element.
+	 * 
+	 * @param query the {@link Query} class that specifies the criteria used to find a record.
+	 * @param collectionName name of the collection to check for objects.
+	 * @return
+	 */
 	boolean exists(Query query, String collectionName);
 
+	/**
+	 * Determine result of given {@link Query} contains at least one element.
+	 * 
+	 * @param query the {@link Query} class that specifies the criteria used to find a record.
+	 * @param entityClass the parameterized type.
+	 * @return
+	 */
 	boolean exists(Query query, Class<?> entityClass);
 
+	/**
+	 * Determine result of given {@link Query} contains at least one element.
+	 * 
+	 * @param query the {@link Query} class that specifies the criteria used to find a record.
+	 * @param entityClass the parameterized type.
+	 * @param collectionName name of the collection to check for objects.
+	 * @return
+	 */
 	boolean exists(Query query, Class<?> entityClass, String collectionName);
 
 	/**
@@ -529,12 +628,58 @@ public interface MongoOperations {
 	 */
 	<T> T findById(Object id, Class<T> entityClass, String collectionName);
 
+	/**
+	 * Triggers <a href="http://docs.mongodb.org/manual/reference/method/db.collection.findAndModify/">findAndModify
+	 * <a/> to apply provided {@link Update} on documents matching {@link Criteria} of given {@link Query}.
+	 * 
+	 * @param query the {@link Query} class that specifies the {@link Criteria} used to find a record and also an optional
+	 *          fields specification.
+	 * @param update the {@link Update} to apply on matching documents.
+	 * @param entityClass the parameterized type.
+	 * @return
+	 */
 	<T> T findAndModify(Query query, Update update, Class<T> entityClass);
 
+	/**
+	 * Triggers <a href="http://docs.mongodb.org/manual/reference/method/db.collection.findAndModify/">findAndModify
+	 * <a/> to apply provided {@link Update} on documents matching {@link Criteria} of given {@link Query}.
+	 * 
+	 * @param query the {@link Query} class that specifies the {@link Criteria} used to find a record and also an optional
+	 *          fields specification.
+	 * @param update the {@link Update} to apply on matching documents.
+	 * @param entityClass the parameterized type.
+	 * @param collectionName the collection to query.
+	 * @return
+	 */
 	<T> T findAndModify(Query query, Update update, Class<T> entityClass, String collectionName);
 
+	/**
+	 * Triggers <a href="http://docs.mongodb.org/manual/reference/method/db.collection.findAndModify/">findAndModify
+	 * <a/> to apply provided {@link Update} on documents matching {@link Criteria} of given {@link Query} taking
+	 * {@link FindAndModifyOptions} into account.
+	 * 
+	 * @param query the {@link Query} class that specifies the {@link Criteria} used to find a record and also an optional
+	 *          fields specification.
+	 * @param update the {@link Update} to apply on matching documents.
+	 * @param options the {@link FindAndModifyOptions} holding additional information.
+	 * @param entityClass the parameterized type.
+	 * @return
+	 */
 	<T> T findAndModify(Query query, Update update, FindAndModifyOptions options, Class<T> entityClass);
 
+	/**
+	 * Triggers <a href="http://docs.mongodb.org/manual/reference/method/db.collection.findAndModify/">findAndModify
+	 * <a/> to apply provided {@link Update} on documents matching {@link Criteria} of given {@link Query} taking
+	 * {@link FindAndModifyOptions} into account.
+	 * 
+	 * @param query the {@link Query} class that specifies the {@link Criteria} used to find a record and also an optional
+	 *          fields specification.
+	 * @param update the {@link Update} to apply on matching documents.
+	 * @param options the {@link FindAndModifyOptions} holding additional information.
+	 * @param entityClass the parameterized type.
+	 * @param collectionName the collection to query.
+	 * @return
+	 */
 	<T> T findAndModify(Query query, Update update, FindAndModifyOptions options, Class<T> entityClass,
 			String collectionName);
 
@@ -583,14 +728,28 @@ public interface MongoOperations {
 	long count(Query query, Class<?> entityClass);
 
 	/**
-	 * Returns the number of documents for the given {@link Query} querying the given collection.
+	 * Returns the number of documents for the given {@link Query} querying the given collection. The given {@link Query}
+	 * must solely consist of document field references as we lack type information to map potential property references
+	 * onto document fields. TO make sure the query gets mapped, use {@link #count(Query, Class, String)}.
 	 * 
 	 * @param query
 	 * @param collectionName must not be {@literal null} or empty.
 	 * @return
+	 * @see #count(Query, Class, String)
 	 */
 	long count(Query query, String collectionName);
 
+	/**
+	 * Returns the number of documents for the given {@link Query} by querying the given collection using the given entity
+	 * class to map the given {@link Query}.
+	 * 
+	 * @param query
+	 * @param entityClass must not be {@literal null}.
+	 * @param collectionName must not be {@literal null} or empty.
+	 * @return
+	 */
+	long count(Query query, Class<?> entityClass, String collectionName);
+
 	/**
 	 * Insert the object into the collection for the entity type of the object to save.
 	 * <p/>
@@ -598,9 +757,9 @@ public interface MongoOperations {
 	 * <p/>
 	 * If you object has an "Id' property, it will be set with the generated Id from MongoDB. If your Id property is a
 	 * String then MongoDB ObjectId will be used to populate that string. Otherwise, the conversion from ObjectId to your
-	 * property type will be handled by Spring's BeanWrapper class that leverages Spring 3.0's new Type Conversion API.
-	 * See <a href="http://static.springsource.org/spring/docs/3.0.x/reference/validation.html#core-convert">Spring 3 Type
-	 * Conversion"</a> for more details.
+	 * property type will be handled by Spring's BeanWrapper class that leverages Type Conversion API. See
+	 * <a href="http://docs.spring.io/spring/docs/current/spring-framework-reference/html/validation.html#core-convert" >
+	 * Spring's Type Conversion"</a> for more details.
 	 * <p/>
 	 * <p/>
 	 * Insert is used to initially store the object into the database. To update an existing object use the save method.
@@ -655,9 +814,9 @@ public interface MongoOperations {
 	 * <p/>
 	 * If you object has an "Id' property, it will be set with the generated Id from MongoDB. If your Id property is a
 	 * String then MongoDB ObjectId will be used to populate that string. Otherwise, the conversion from ObjectId to your
-	 * property type will be handled by Spring's BeanWrapper class that leverages Spring 3.0's new Type Conversion API.
-	 * See <a href="http://static.springsource.org/spring/docs/3.0.x/reference/validation.html#core-convert">Spring 3 Type
-	 * Conversion"</a> for more details.
+	 * property type will be handled by Spring's BeanWrapper class that leverages Type Conversion API. See
+	 * <a href="http://docs.spring.io/spring/docs/current/spring-framework-reference/html/validation.html#core-convert" >
+	 * Spring's Type Conversion"</a> for more details.
 	 * 
 	 * @param objectToSave the object to store in the collection
 	 */
@@ -672,9 +831,9 @@ public interface MongoOperations {
 	 * <p/>
 	 * If you object has an "Id' property, it will be set with the generated Id from MongoDB. If your Id property is a
 	 * String then MongoDB ObjectId will be used to populate that string. Otherwise, the conversion from ObjectId to your
-	 * property type will be handled by Spring's BeanWrapper class that leverages Spring 3.0's new Type Cobnversion API.
-	 * See <a href="http://static.springsource.org/spring/docs/3.0.x/reference/validation.html#core-convert">Spring 3 Type
-	 * Conversion"</a> for more details.
+	 * property type will be handled by Spring's BeanWrapper class that leverages Type Cobnversion API. See <a
+	 * http://docs.spring.io/spring/docs/current/spring-framework-reference/html/validation.html#core-convert">Spring's
+	 * Type Conversion"</a> for more details.
 	 * 
 	 * @param objectToSave the object to store in the collection
 	 * @param collectionName name of the collection to store the object in
@@ -795,7 +954,7 @@ public interface MongoOperations {
 	 * 
 	 * @param object
 	 */
-	void remove(Object object);
+	WriteResult remove(Object object);
 
 	/**
 	 * Removes the given object from the given collection.
@@ -803,7 +962,7 @@ public interface MongoOperations {
 	 * @param object
 	 * @param collection must not be {@literal null} or empty.
 	 */
-	void remove(Object object, String collection);
+	WriteResult remove(Object object, String collection);
 
 	/**
 	 * Remove all documents that match the provided query document criteria from the the collection used to store the
@@ -812,9 +971,17 @@ public interface MongoOperations {
 	 * @param query
 	 * @param entityClass
 	 */
-	void remove(Query query, Class<?> entityClass);
+	WriteResult remove(Query query, Class<?> entityClass);
 
-	void remove(Query query, Class<?> entityClass, String collectionName);
+	/**
+	 * Remove all documents that match the provided query document criteria from the the collection used to store the
+	 * entityClass. The Class parameter is also used to help convert the Id of the object if it is present in the query.
+	 * 
+	 * @param query
+	 * @param entityClass
+	 * @param collectionName
+	 */
+	WriteResult remove(Query query, Class<?> entityClass, String collectionName);
 
 	/**
 	 * Remove all documents from the specified collection that match the provided query document criteria. There is no
@@ -823,7 +990,40 @@ public interface MongoOperations {
 	 * @param query the query document that specifies the criteria used to remove a record
 	 * @param collectionName name of the collection where the objects will removed
 	 */
-	void remove(Query query, String collectionName);
+	WriteResult remove(Query query, String collectionName);
+
+	/**
+	 * Returns and removes all documents form the specified collection that match the provided query.
+	 * 
+	 * @param query
+	 * @param collectionName
+	 * @return
+	 * @since 1.5
+	 */
+	<T> List<T> findAllAndRemove(Query query, String collectionName);
+
+	/**
+	 * Returns and removes all documents matching the given query form the collection used to store the entityClass.
+	 * 
+	 * @param query
+	 * @param entityClass
+	 * @return
+	 * @since 1.5
+	 */
+	<T> List<T> findAllAndRemove(Query query, Class<T> entityClass);
+
+	/**
+	 * Returns and removes all documents that match the provided query document criteria from the the collection used to
+	 * store the entityClass. The Class parameter is also used to help convert the Id of the object if it is present in
+	 * the query.
+	 * 
+	 * @param query
+	 * @param entityClass
+	 * @param collectionName
+	 * @return
+	 * @since 1.5
+	 */
+	<T> List<T> findAllAndRemove(Query query, Class<T> entityClass, String collectionName);
 
 	/**
 	 * Returns the underlying {@link MongoConverter}.
@@ -831,4 +1031,5 @@ public interface MongoOperations {
 	 * @return
 	 */
 	MongoConverter getConverter();
+
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoOptionsFactoryBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2013 the original author or authors.
+ * Copyright 2010-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,37 +17,45 @@ package org.springframework.data.mongodb.core;
 
 import javax.net.ssl.SSLSocketFactory;
 
-import org.springframework.beans.factory.FactoryBean;
-import org.springframework.beans.factory.InitializingBean;
+import org.springframework.beans.factory.config.AbstractFactoryBean;
+import org.springframework.data.mongodb.util.MongoClientVersion;
 
 import com.mongodb.MongoOptions;
 
 /**
- * A factory bean for construction of a {@link MongoOptions} instance.
- * 
+ * A factory bean for construction of a {@link MongoOptions} instance. In case used with MongoDB Java driver version 3
+ * porperties not suppprted by the driver will be ignored.
+ *
  * @author Graeme Rocher
  * @author Mark Pollack
  * @author Mike Saavedra
  * @author Thomas Darimont
+ * @author Christoph Strobl
+ * @deprecated since 1.7. Please use {@link MongoClientOptionsFactoryBean} instead.
  */
-public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, InitializingBean {
+@Deprecated
+public class MongoOptionsFactoryBean extends AbstractFactoryBean<MongoOptions> {
 
-	@SuppressWarnings("deprecation")//
-	private final MongoOptions MONGO_OPTIONS = new MongoOptions();
+	private static final MongoOptions DEFAULT_MONGO_OPTIONS = new MongoOptions();
 
-	private int connectionsPerHost = MONGO_OPTIONS.connectionsPerHost;
+	private int connectionsPerHost = DEFAULT_MONGO_OPTIONS.getConnectionsPerHost();
+	private int threadsAllowedToBlockForConnectionMultiplier = DEFAULT_MONGO_OPTIONS
+			.getThreadsAllowedToBlockForConnectionMultiplier();
+	private int maxWaitTime = DEFAULT_MONGO_OPTIONS.getMaxWaitTime();
+	private int connectTimeout = DEFAULT_MONGO_OPTIONS.getConnectTimeout();
+	private int socketTimeout = DEFAULT_MONGO_OPTIONS.getSocketTimeout();
+	private boolean socketKeepAlive = DEFAULT_MONGO_OPTIONS.isSocketKeepAlive();
+	private int writeNumber = DEFAULT_MONGO_OPTIONS.getW();
+	private int writeTimeout = DEFAULT_MONGO_OPTIONS.getWtimeout();
+	private boolean writeFsync = DEFAULT_MONGO_OPTIONS.isFsync();
+
+	private boolean autoConnectRetry = !MongoClientVersion.isMongo3Driver() ? ReflectiveMongoOptionsInvoker
+			.getAutoConnectRetry(DEFAULT_MONGO_OPTIONS) : false;
+	private long maxAutoConnectRetryTime = !MongoClientVersion.isMongo3Driver() ? ReflectiveMongoOptionsInvoker
+			.getMaxAutoConnectRetryTime(DEFAULT_MONGO_OPTIONS) : -1;
+	private boolean slaveOk = !MongoClientVersion.isMongo3Driver() ? ReflectiveMongoOptionsInvoker
+			.getSlaveOk(DEFAULT_MONGO_OPTIONS) : false;
 
-	private int threadsAllowedToBlockForConnectionMultiplier = MONGO_OPTIONS.threadsAllowedToBlockForConnectionMultiplier;
-	private int maxWaitTime = MONGO_OPTIONS.maxWaitTime;
-	private int connectTimeout = MONGO_OPTIONS.connectTimeout;
-	private int socketTimeout = MONGO_OPTIONS.socketTimeout;
-	private boolean socketKeepAlive = MONGO_OPTIONS.socketKeepAlive;
-	private boolean autoConnectRetry = MONGO_OPTIONS.autoConnectRetry;
-	private long maxAutoConnectRetryTime = MONGO_OPTIONS.maxAutoConnectRetryTime;
-	private int writeNumber;
-	private int writeTimeout;
-	private boolean writeFsync;
-	@SuppressWarnings("deprecation") private boolean slaveOk = MONGO_OPTIONS.slaveOk;
 	private boolean ssl;
 	private SSLSocketFactory sslSocketFactory;
 
@@ -143,7 +151,10 @@ public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, Initi
 
 	/**
 	 * Configures whether or not the system retries automatically on a failed connect. This defaults to {@literal false}.
+	 * 
+	 * @deprecated since 1.7.
 	 */
+	@Deprecated
 	public void setAutoConnectRetry(boolean autoConnectRetry) {
 		this.autoConnectRetry = autoConnectRetry;
 	}
@@ -153,7 +164,9 @@ public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, Initi
 	 * defaults to {@literal 0}, which means to use the default {@literal 15s} if {@link #autoConnectRetry} is on.
 	 * 
 	 * @param maxAutoConnectRetryTime the maxAutoConnectRetryTime to set
+	 * @deprecated since 1.7
 	 */
+	@Deprecated
 	public void setMaxAutoConnectRetryTime(long maxAutoConnectRetryTime) {
 		this.maxAutoConnectRetryTime = maxAutoConnectRetryTime;
 	}
@@ -162,7 +175,9 @@ public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, Initi
 	 * Specifies if the driver is allowed to read from secondaries or slaves. Defaults to {@literal false}.
 	 * 
 	 * @param slaveOk true if the driver should read from secondaries or slaves.
+	 * @deprecated since 1.7
 	 */
+	@Deprecated
 	public void setSlaveOk(boolean slaveOk) {
 		this.slaveOk = slaveOk;
 	}
@@ -193,36 +208,41 @@ public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, Initi
 		this.sslSocketFactory = sslSocketFactory;
 	}
 
-	/*
+	/* 
 	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
+	 * @see org.springframework.beans.factory.config.AbstractFactoryBean#createInstance()
 	 */
-	@SuppressWarnings("deprecation")
-	public void afterPropertiesSet() {
+	@Override
+	protected MongoOptions createInstance() throws Exception {
 
-		MONGO_OPTIONS.connectionsPerHost = connectionsPerHost;
-		MONGO_OPTIONS.threadsAllowedToBlockForConnectionMultiplier = threadsAllowedToBlockForConnectionMultiplier;
-		MONGO_OPTIONS.maxWaitTime = maxWaitTime;
-		MONGO_OPTIONS.connectTimeout = connectTimeout;
-		MONGO_OPTIONS.socketTimeout = socketTimeout;
-		MONGO_OPTIONS.socketKeepAlive = socketKeepAlive;
-		MONGO_OPTIONS.autoConnectRetry = autoConnectRetry;
-		MONGO_OPTIONS.maxAutoConnectRetryTime = maxAutoConnectRetryTime;
-		MONGO_OPTIONS.slaveOk = slaveOk;
-		MONGO_OPTIONS.w = writeNumber;
-		MONGO_OPTIONS.wtimeout = writeTimeout;
-		MONGO_OPTIONS.fsync = writeFsync;
-		if (ssl) {
-			MONGO_OPTIONS.setSocketFactory(sslSocketFactory != null ? sslSocketFactory : SSLSocketFactory.getDefault());
+		if (MongoClientVersion.isMongo3Driver()) {
+			throw new IllegalArgumentException(
+					String
+							.format("Usage of 'mongo-options' is no longer supported for MongoDB Java driver version 3 and above. Please use 'mongo-client-options' and refer to chapter 'MongoDB 3.0 Support' for details."));
 		}
-	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.FactoryBean#getObject()
-	 */
-	public MongoOptions getObject() {
-		return MONGO_OPTIONS;
+		MongoOptions options = new MongoOptions();
+
+		options.setConnectionsPerHost(connectionsPerHost);
+		options.setThreadsAllowedToBlockForConnectionMultiplier(threadsAllowedToBlockForConnectionMultiplier);
+		options.setMaxWaitTime(maxWaitTime);
+		options.setConnectTimeout(connectTimeout);
+		options.setSocketTimeout(socketTimeout);
+		options.setSocketKeepAlive(socketKeepAlive);
+
+		options.setW(writeNumber);
+		options.setWtimeout(writeTimeout);
+		options.setFsync(writeFsync);
+
+		if (ssl) {
+			options.setSocketFactory(sslSocketFactory != null ? sslSocketFactory : SSLSocketFactory.getDefault());
+		}
+
+		ReflectiveMongoOptionsInvoker.setAutoConnectRetry(options, autoConnectRetry);
+		ReflectiveMongoOptionsInvoker.setMaxAutoConnectRetryTime(options, maxAutoConnectRetryTime);
+		ReflectiveMongoOptionsInvoker.setSlaveOk(options, slaveOk);
+
+		return options;
 	}
 
 	/*
@@ -232,12 +252,4 @@ public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, Initi
 	public Class<?> getObjectType() {
 		return MongoOptions.class;
 	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.FactoryBean#isSingleton()
-	 */
-	public boolean isSingleton() {
-		return true;
-	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoSynchronization.java

@@ -1,8 +1,26 @@
+/*
+ * Copyright 2012-2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.mongodb.core;
 
 import org.springframework.transaction.support.ResourceHolder;
 import org.springframework.transaction.support.ResourceHolderSynchronization;
 
+/**
+ * @author Oliver Gierke
+ */
 class MongoSynchronization extends ResourceHolderSynchronization<ResourceHolder, Object> {
 
 	public MongoSynchronization(ResourceHolder resourceHolder, Object resourceKey) {

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ReflectiveDBCollectionInvoker.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+import static org.springframework.util.ReflectionUtils.*;
+
+import java.lang.reflect.Method;
+
+import org.springframework.data.mongodb.util.MongoClientVersion;
+
+import com.mongodb.DBCollection;
+import com.mongodb.DBObject;
+
+/**
+ * {@link ReflectiveDBCollectionInvoker} provides reflective access to {@link DBCollection} API that is not consistently
+ * available for various driver versions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+class ReflectiveDBCollectionInvoker {
+
+	private static final Method GEN_INDEX_NAME_METHOD;
+	private static final Method RESET_INDEX_CHACHE_METHOD;
+
+	static {
+
+		GEN_INDEX_NAME_METHOD = findMethod(DBCollection.class, "genIndexName", DBObject.class);
+		RESET_INDEX_CHACHE_METHOD = findMethod(DBCollection.class, "resetIndexCache");
+	}
+
+	private ReflectiveDBCollectionInvoker() {}
+
+	/**
+	 * Convenience method to generate an index name from the set of fields it is over. Will fall back to a MongoDB Java
+	 * driver version 2 compatible way of generating index name in case of {@link MongoClientVersion#isMongo3Driver()}.
+	 * 
+	 * @param keys the names of the fields used in this index
+	 * @return
+	 */
+	public static String generateIndexName(DBObject keys) {
+
+		if (isMongo3Driver()) {
+			return genIndexName(keys);
+		}
+		return (String) invokeMethod(GEN_INDEX_NAME_METHOD, null, keys);
+	}
+
+	/**
+	 * In case of MongoDB Java driver version 2 all indices that have not yet been applied to this collection will be
+	 * cleared. Since this method is not available for the MongoDB Java driver version 3 the operation will throw
+	 * {@link UnsupportedOperationException}.
+	 * 
+	 * @param dbCollection
+	 * @throws UnsupportedOperationException
+	 */
+	public static void resetIndexCache(DBCollection dbCollection) {
+
+		if (isMongo3Driver()) {
+			throw new UnsupportedOperationException("The mongo java driver 3 does no loger support resetIndexCache!");
+		}
+
+		invokeMethod(RESET_INDEX_CHACHE_METHOD, dbCollection);
+	}
+
+	/**
+	 * Borrowed from MongoDB Java driver version 2. See <a
+	 * href="http://github.com/mongodb/mongo-java-driver/blob/r2.13.0/src/main/com/mongodb/DBCollection.java#L754"
+	 * >http://github.com/mongodb/mongo-java-driver/blob/r2.13.0/src/main/com/mongodb/DBCollection.java#L754</a>
+	 * 
+	 * @param keys
+	 * @return
+	 */
+	private static String genIndexName(DBObject keys) {
+
+		StringBuilder name = new StringBuilder();
+
+		for (String s : keys.keySet()) {
+
+			if (name.length() > 0) {
+				name.append('_');
+			}
+
+			name.append(s).append('_');
+			Object val = keys.get(s);
+
+			if (val instanceof Number || val instanceof String) {
+				name.append(val.toString().replace(' ', '_'));
+			}
+		}
+
+		return name.toString();
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ReflectiveDbInvoker.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+import static org.springframework.util.ReflectionUtils.*;
+
+import java.lang.reflect.Method;
+
+import org.springframework.data.authentication.UserCredentials;
+import org.springframework.data.mongodb.CannotGetMongoDbConnectionException;
+import org.springframework.data.mongodb.util.MongoClientVersion;
+
+import com.mongodb.DB;
+import com.mongodb.Mongo;
+
+/**
+ * {@link ReflectiveDbInvoker} provides reflective access to {@link DB} API that is not consistently available for
+ * various driver versions.
+ *
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+final class ReflectiveDbInvoker {
+
+	private static final Method DB_IS_AUTHENTICATED_METHOD;
+	private static final Method DB_AUTHENTICATE_METHOD;
+	private static final Method DB_REQUEST_DONE_METHOD;
+	private static final Method DB_ADD_USER_METHOD;
+	private static final Method DB_REQUEST_START_METHOD;
+
+	static {
+
+		DB_IS_AUTHENTICATED_METHOD = findMethod(DB.class, "isAuthenticated");
+		DB_AUTHENTICATE_METHOD = findMethod(DB.class, "authenticate", String.class, char[].class);
+		DB_REQUEST_DONE_METHOD = findMethod(DB.class, "requestDone");
+		DB_ADD_USER_METHOD = findMethod(DB.class, "addUser", String.class, char[].class);
+		DB_REQUEST_START_METHOD = findMethod(DB.class, "requestStart");
+	}
+
+	private ReflectiveDbInvoker() {}
+
+	/**
+	 * Authenticate against database using provided credentials in case of a MongoDB Java driver version 2.
+	 *
+	 * @param mongo must not be {@literal null}.
+	 * @param db must not be {@literal null}.
+	 * @param credentials must not be {@literal null}.
+	 * @param authenticationDatabaseName
+	 */
+	public static void authenticate(Mongo mongo, DB db, UserCredentials credentials, String authenticationDatabaseName) {
+
+		String databaseName = db.getName();
+
+		DB authDb = databaseName.equals(authenticationDatabaseName) ? db : mongo.getDB(authenticationDatabaseName);
+
+		synchronized (authDb) {
+
+			Boolean isAuthenticated = (Boolean) invokeMethod(DB_IS_AUTHENTICATED_METHOD, authDb);
+			if (!isAuthenticated) {
+
+				String username = credentials.getUsername();
+				String password = credentials.hasPassword() ? credentials.getPassword() : null;
+
+				Boolean authenticated = (Boolean) invokeMethod(DB_AUTHENTICATE_METHOD, authDb, username,
+						password == null ? null : password.toCharArray());
+				if (!authenticated) {
+					throw new CannotGetMongoDbConnectionException("Failed to authenticate to database [" + databaseName + "], "
+							+ credentials.toString(), databaseName, credentials);
+				}
+			}
+		}
+	}
+
+	/**
+	 * Starts a new 'consistent request' in case of MongoDB Java driver version 2. Will do nothing for MongoDB Java driver
+	 * version 3 since the operation is no longer available.
+	 *
+	 * @param db
+	 */
+	public static void requestStart(DB db) {
+
+		if (isMongo3Driver()) {
+			return;
+		}
+
+		invokeMethod(DB_REQUEST_START_METHOD, db);
+	}
+
+	/**
+	 * Ends the current 'consistent request'. a new 'consistent request' in case of MongoDB Java driver version 2. Will do
+	 * nothing for MongoDB Java driver version 3 since the operation is no longer available
+	 *
+	 * @param db
+	 */
+	public static void requestDone(DB db) {
+
+		if (MongoClientVersion.isMongo3Driver()) {
+			return;
+		}
+
+		invokeMethod(DB_REQUEST_DONE_METHOD, db);
+	}
+
+	/**
+	 * @param db
+	 * @param username
+	 * @param password
+	 * @throws UnsupportedOperationException
+	 */
+	public static void addUser(DB db, String username, char[] password) {
+
+		if (isMongo3Driver()) {
+			throw new UnsupportedOperationException(
+					"Please use DB.command(…) to call either the createUser or updateUser command!");
+		}
+
+		invokeMethod(DB_ADD_USER_METHOD, db, username, password);
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ReflectiveMapReduceInvoker.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+import static org.springframework.util.ReflectionUtils.*;
+
+import java.lang.reflect.Method;
+
+import org.springframework.util.Assert;
+
+import com.mongodb.MapReduceCommand;
+
+/**
+ * {@link ReflectiveMapReduceInvoker} provides reflective access to {@link MapReduceCommand} API that is not
+ * consistently available for various driver versions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+final class ReflectiveMapReduceInvoker {
+
+	private static final Method ADD_EXTRA_OPTION_METHOD;
+
+	static {
+
+		ADD_EXTRA_OPTION_METHOD = findMethod(MapReduceCommand.class, "addExtraOption", String.class, Object.class);
+	}
+
+	private ReflectiveMapReduceInvoker() {}
+
+	/**
+	 * Sets the extra option for MongoDB Java driver version 2. Will do nothing for MongoDB Java driver version 2.
+	 * 
+	 * @param cmd can be {@literal null} for MongoDB Java driver version 2.
+	 * @param key
+	 * @param value
+	 */
+	public static void addExtraOption(MapReduceCommand cmd, String key, Object value) {
+
+		if (isMongo3Driver()) {
+			return;
+		}
+
+		Assert.notNull(cmd, "MapReduceCommand must not be null!");
+		invokeMethod(ADD_EXTRA_OPTION_METHOD, cmd, key, value);
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ReflectiveMongoOptionsInvoker.java

@@ -0,0 +1,158 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+import static org.springframework.util.ReflectionUtils.*;
+
+import java.lang.reflect.Method;
+
+import org.springframework.beans.DirectFieldAccessor;
+import org.springframework.util.ReflectionUtils;
+
+import com.mongodb.MongoOptions;
+
+/**
+ * {@link ReflectiveMongoOptionsInvoker} provides reflective access to {@link MongoOptions} API that is not consistently
+ * available for various driver versions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+@SuppressWarnings("deprecation")
+class ReflectiveMongoOptionsInvoker {
+
+	private static final Method GET_AUTO_CONNECT_RETRY_METHOD;
+	private static final Method SET_AUTO_CONNECT_RETRY_METHOD;
+	private static final Method GET_MAX_AUTO_CONNECT_RETRY_TIME_METHOD;
+	private static final Method SET_MAX_AUTO_CONNECT_RETRY_TIME_METHOD;
+
+	static {
+
+		SET_AUTO_CONNECT_RETRY_METHOD = ReflectionUtils
+				.findMethod(MongoOptions.class, "setAutoConnectRetry", boolean.class);
+		GET_AUTO_CONNECT_RETRY_METHOD = ReflectionUtils.findMethod(MongoOptions.class, "isAutoConnectRetry");
+		SET_MAX_AUTO_CONNECT_RETRY_TIME_METHOD = ReflectionUtils.findMethod(MongoOptions.class,
+				"setMaxAutoConnectRetryTime", long.class);
+		GET_MAX_AUTO_CONNECT_RETRY_TIME_METHOD = ReflectionUtils.findMethod(MongoOptions.class,
+				"getMaxAutoConnectRetryTime");
+	}
+
+	private ReflectiveMongoOptionsInvoker() {}
+
+	/**
+	 * Sets the retry connection flag for MongoDB Java driver version 2. Will do nothing for MongoDB Java driver version 3
+	 * since the method has been removed.
+	 * 
+	 * @param options can be {@literal null} for MongoDB Java driver version 3.
+	 * @param autoConnectRetry
+	 */
+	public static void setAutoConnectRetry(MongoOptions options, boolean autoConnectRetry) {
+
+		if (isMongo3Driver()) {
+			return;
+		}
+
+		invokeMethod(SET_AUTO_CONNECT_RETRY_METHOD, options, autoConnectRetry);
+	}
+
+	/**
+	 * Sets the maxAutoConnectRetryTime attribute for MongoDB Java driver version 2. Will do nothing for MongoDB Java
+	 * driver version 3 since the method has been removed.
+	 * 
+	 * @param options can be {@literal null} for MongoDB Java driver version 3.
+	 * @param maxAutoConnectRetryTime
+	 */
+	public static void setMaxAutoConnectRetryTime(MongoOptions options, long maxAutoConnectRetryTime) {
+
+		if (isMongo3Driver()) {
+			return;
+		}
+
+		invokeMethod(SET_MAX_AUTO_CONNECT_RETRY_TIME_METHOD, options, maxAutoConnectRetryTime);
+	}
+
+	/**
+	 * Sets the slaveOk attribute for MongoDB Java driver version 2. Will do nothing for MongoDB Java driver version 3
+	 * since the method has been removed.
+	 * 
+	 * @param options can be {@literal null} for MongoDB Java driver version 3.
+	 * @param slaveOk
+	 */
+	public static void setSlaveOk(MongoOptions options, boolean slaveOk) {
+
+		if (isMongo3Driver()) {
+			return;
+		}
+
+		new DirectFieldAccessor(options).setPropertyValue("slaveOk", slaveOk);
+	}
+
+	/**
+	 * Gets the slaveOk attribute for MongoDB Java driver version 2. Throws {@link UnsupportedOperationException} for
+	 * MongoDB Java driver version 3 since the method has been removed.
+	 * 
+	 * @param options can be {@literal null} for MongoDB Java driver version 3.
+	 * @return
+	 * @throws UnsupportedOperationException
+	 */
+	public static boolean getSlaveOk(MongoOptions options) {
+
+		if (isMongo3Driver()) {
+			throw new UnsupportedOperationException(
+					"Cannot get value for autoConnectRetry which has been removed in MongoDB Java driver version 3.");
+		}
+
+		return ((Boolean) new DirectFieldAccessor(options).getPropertyValue("slaveOk")).booleanValue();
+	}
+
+	/**
+	 * Gets the autoConnectRetry attribute for MongoDB Java driver version 2. Throws {@link UnsupportedOperationException}
+	 * for MongoDB Java driver version 3 since the method has been removed.
+	 * 
+	 * @param options can be {@literal null} for MongoDB Java driver version 3.
+	 * @return
+	 * @throws UnsupportedOperationException
+	 */
+	public static boolean getAutoConnectRetry(MongoOptions options) {
+
+		if (isMongo3Driver()) {
+			throw new UnsupportedOperationException(
+					"Cannot get value for autoConnectRetry which has been removed in MongoDB Java driver version 3.");
+		}
+
+		return ((Boolean) invokeMethod(GET_AUTO_CONNECT_RETRY_METHOD, options)).booleanValue();
+	}
+
+	/**
+	 * Gets the maxAutoConnectRetryTime attribute for MongoDB Java driver version 2. Throws
+	 * {@link UnsupportedOperationException} for MongoDB Java driver version 3 since the method has been removed.
+	 * 
+	 * @param options can be {@literal null} for MongoDB Java driver version 3.
+	 * @return
+	 * @throws UnsupportedOperationException
+	 */
+	public static long getMaxAutoConnectRetryTime(MongoOptions options) {
+
+		if (isMongo3Driver()) {
+			throw new UnsupportedOperationException(
+					"Cannot get value for maxAutoConnectRetryTime which has been removed in MongoDB Java driver version 3.");
+		}
+
+		return ((Long) invokeMethod(GET_MAX_AUTO_CONNECT_RETRY_TIME_METHOD, options)).longValue();
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ReflectiveWriteConcernInvoker.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+
+import org.springframework.beans.DirectFieldAccessor;
+
+import com.mongodb.WriteConcern;
+
+/**
+ * {@link ReflectiveWriteConcernInvoker} provides reflective access to {@link WriteConcern} API that is not consistently
+ * available for various driver versions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+class ReflectiveWriteConcernInvoker {
+
+	private static final WriteConcern NONE_OR_UNACKNOWLEDGED;
+
+	static {
+
+		NONE_OR_UNACKNOWLEDGED = isMongo3Driver() ? WriteConcern.UNACKNOWLEDGED : (WriteConcern) new DirectFieldAccessor(
+				new WriteConcern()).getPropertyValue("NONE");
+	}
+
+	/**
+	 * @return {@link WriteConcern#NONE} for MongoDB Java driver version 2, otherwise {@link WriteConcern#UNACKNOWLEDGED}.
+	 */
+	public static WriteConcern noneOrUnacknowledged() {
+		return NONE_OR_UNACKNOWLEDGED;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ReflectiveWriteResultInvoker.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+import static org.springframework.util.ReflectionUtils.*;
+
+import java.lang.reflect.Method;
+
+import com.mongodb.MongoException;
+import com.mongodb.WriteResult;
+
+/**
+ * {@link ReflectiveWriteResultInvoker} provides reflective access to {@link WriteResult} API that is not consistently
+ * available for various driver versions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+final class ReflectiveWriteResultInvoker {
+
+	private static final Method GET_ERROR_METHOD;
+	private static final Method WAS_ACKNOWLEDGED_METHOD;
+
+	private ReflectiveWriteResultInvoker() {}
+
+	static {
+
+		GET_ERROR_METHOD = findMethod(WriteResult.class, "getError");
+		WAS_ACKNOWLEDGED_METHOD = findMethod(WriteResult.class, "wasAcknowledged");
+	}
+
+	/**
+	 * @param writeResult can be {@literal null} for MongoDB Java driver version 3.
+	 * @return null in case of MongoDB Java driver version 3 since errors are thrown as {@link MongoException}.
+	 */
+	public static String getError(WriteResult writeResult) {
+
+		if (isMongo3Driver()) {
+			return null;
+		}
+
+		return (String) invokeMethod(GET_ERROR_METHOD, writeResult);
+	}
+
+	/**
+	 * @param writeResult
+	 * @return return in case of MongoDB Java driver version 2.
+	 */
+	public static boolean wasAcknowledged(WriteResult writeResult) {
+		return isMongo3Driver() ? ((Boolean) invokeMethod(WAS_ACKNOWLEDGED_METHOD, writeResult)).booleanValue() : true;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/ScriptOperations.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2014-2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core;
+
+import java.util.Set;
+
+import org.springframework.data.mongodb.core.script.ExecutableMongoScript;
+import org.springframework.data.mongodb.core.script.NamedMongoScript;
+
+import com.mongodb.DB;
+
+/**
+ * Script operations on {@link com.mongodb.DB} level. Allows interaction with server side JavaScript functions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+public interface ScriptOperations {
+
+	/**
+	 * Store given {@link ExecutableMongoScript} generating a syntheitcal name so that it can be called by it
+	 * subsequently.
+	 * 
+	 * @param script must not be {@literal null}.
+	 * @return {@link NamedMongoScript} with name under which the {@code JavaScript} function can be called.
+	 */
+	NamedMongoScript register(ExecutableMongoScript script);
+
+	/**
+	 * Registers the given {@link NamedMongoScript} in the database.
+	 * 
+	 * @param script the {@link NamedMongoScript} to be registered.
+	 * @return
+	 */
+	NamedMongoScript register(NamedMongoScript script);
+
+	/**
+	 * Executes the {@literal script} by either calling it via its {@literal name} or directly sending it.
+	 * 
+	 * @param script must not be {@literal null}.
+	 * @param args arguments to pass on for script execution.
+	 * @return the script evaluation result.
+	 * @throws org.springframework.dao.DataAccessException
+	 */
+	Object execute(ExecutableMongoScript script, Object... args);
+
+	/**
+	 * Call the {@literal JavaScript} by its name.
+	 * 
+	 * @param scriptName must not be {@literal null} or empty.
+	 * @param args
+	 * @return
+	 */
+	Object call(String scriptName, Object... args);
+
+	/**
+	 * Checks {@link DB} for existence of {@link ServerSideJavaScript} with given name.
+	 * 
+	 * @param scriptName must not be {@literal null} or empty.
+	 * @return false if no {@link ServerSideJavaScript} with given name exists.
+	 */
+	boolean exists(String scriptName);
+
+	/**
+	 * Returns names of {@literal JavaScript} functions that can be called.
+	 * 
+	 * @return empty {@link Set} if no scripts found.
+	 */
+	Set<String> getScriptNames();
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/SimpleMongoDbFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ import java.net.UnknownHostException;
 
 import org.springframework.beans.factory.DisposableBean;
 import org.springframework.dao.DataAccessException;
+import org.springframework.dao.InvalidDataAccessApiUsageException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
 import org.springframework.data.authentication.UserCredentials;
 import org.springframework.data.mongodb.MongoDbFactory;
@@ -27,6 +28,8 @@ import org.springframework.util.StringUtils;
 
 import com.mongodb.DB;
 import com.mongodb.Mongo;
+import com.mongodb.MongoClient;
+import com.mongodb.MongoClientURI;
 import com.mongodb.MongoException;
 import com.mongodb.MongoURI;
 import com.mongodb.WriteConcern;
@@ -37,6 +40,7 @@ import com.mongodb.WriteConcern;
  * @author Mark Pollack
  * @author Oliver Gierke
  * @author Thomas Darimont
+ * @author Christoph Strobl
  */
 public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 
@@ -54,7 +58,9 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * 
 	 * @param mongo Mongo instance, must not be {@literal null}.
 	 * @param databaseName database name, not be {@literal null} or empty.
+	 * @deprecated since 1.7. Please use {@link #SimpleMongoDbFactory(MongoClient, String)}.
 	 */
+	@Deprecated
 	public SimpleMongoDbFactory(Mongo mongo, String databaseName) {
 		this(mongo, databaseName, null);
 	}
@@ -65,7 +71,9 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * @param mongo Mongo instance, must not be {@literal null}.
 	 * @param databaseName Database name, must not be {@literal null} or empty.
 	 * @param credentials username and password.
+	 * @deprecated since 1.7. The credentials used should be provided by {@link MongoClient#getCredentialsList()}.
 	 */
+	@Deprecated
 	public SimpleMongoDbFactory(Mongo mongo, String databaseName, UserCredentials credentials) {
 		this(mongo, databaseName, credentials, false, null);
 	}
@@ -77,7 +85,9 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * @param databaseName Database name, must not be {@literal null} or empty.
 	 * @param credentials username and password.
 	 * @param authenticationDatabaseName the database name to use for authentication
+	 * @deprecated since 1.7. The credentials used should be provided by {@link MongoClient#getCredentialsList()}.
 	 */
+	@Deprecated
 	public SimpleMongoDbFactory(Mongo mongo, String databaseName, UserCredentials credentials,
 			String authenticationDatabaseName) {
 		this(mongo, databaseName, credentials, false, authenticationDatabaseName);
@@ -90,16 +100,44 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * @throws MongoException
 	 * @throws UnknownHostException
 	 * @see MongoURI
+	 * @deprecated since 1.7. Please use {@link #SimpleMongoDbFactory(MongoClientURI)} instead.
 	 */
-	@SuppressWarnings("deprecation")
+	@Deprecated
 	public SimpleMongoDbFactory(MongoURI uri) throws MongoException, UnknownHostException {
-		this(new Mongo(uri), uri.getDatabase(), new UserCredentials(uri.getUsername(), parseChars(uri.getPassword())),
-				true, uri.getDatabase());
+		this(new Mongo(uri), uri.getDatabase(), new UserCredentials(uri.getUsername(), parseChars(uri.getPassword())), true,
+				uri.getDatabase());
+	}
+
+	/**
+	 * Creates a new {@link SimpleMongoDbFactory} instance from the given {@link MongoClientURI}.
+	 * 
+	 * @param uri must not be {@literal null}.
+	 * @throws UnknownHostException
+	 * @since 1.7
+	 */
+	public SimpleMongoDbFactory(MongoClientURI uri) throws UnknownHostException {
+		this(new MongoClient(uri), uri.getDatabase(), true);
+	}
+
+	/**
+	 * Creates a new {@link SimpleMongoDbFactory} instance from the given {@link MongoClient}.
+	 * 
+	 * @param mongoClient must not be {@literal null}.
+	 * @param databaseName must not be {@literal null}.
+	 * @since 1.7
+	 */
+	public SimpleMongoDbFactory(MongoClient mongoClient, String databaseName) {
+		this(mongoClient, databaseName, false);
 	}
 
 	private SimpleMongoDbFactory(Mongo mongo, String databaseName, UserCredentials credentials,
 			boolean mongoInstanceCreated, String authenticationDatabaseName) {
 
+		if (mongo instanceof MongoClient && (credentials != null && !UserCredentials.NO_CREDENTIALS.equals(credentials))) {
+			throw new InvalidDataAccessApiUsageException(
+					"Usage of 'UserCredentials' with 'MongoClient' is no longer supported. Please use 'MongoCredential' for 'MongoClient' or just 'Mongo'.");
+		}
+
 		Assert.notNull(mongo, "Mongo must not be null");
 		Assert.hasText(databaseName, "Database name must not be empty");
 		Assert.isTrue(databaseName.matches("[\\w-]+"),
@@ -117,6 +155,25 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 				"Authentication database name must only contain letters, numbers, underscores and dashes!");
 	}
 
+	/**
+	 * @param client
+	 * @param databaseName
+	 * @param mongoInstanceCreated
+	 * @since 1.7
+	 */
+	private SimpleMongoDbFactory(MongoClient client, String databaseName, boolean mongoInstanceCreated) {
+
+		Assert.notNull(client, "MongoClient must not be null!");
+		Assert.hasText(databaseName, "Database name must not be empty!");
+
+		this.mongo = client;
+		this.databaseName = databaseName;
+		this.mongoInstanceCreated = mongoInstanceCreated;
+		this.exceptionTranslator = new MongoExceptionTranslator();
+		this.credentials = UserCredentials.NO_CREDENTIALS;
+		this.authenticationDatabaseName = databaseName;
+	}
+
 	/**
 	 * Configures the {@link WriteConcern} to be used on the {@link DB} instance being created.
 	 * 
@@ -138,6 +195,7 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.MongoDbFactory#getDb(java.lang.String)
 	 */
+	@SuppressWarnings("deprecation")
 	public DB getDb(String dbName) throws DataAccessException {
 
 		Assert.hasText(dbName, "Database name must not be empty.");

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/Aggregation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,6 +27,7 @@ import org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedFi
 import org.springframework.data.mongodb.core.aggregation.ExposedFields.FieldReference;
 import org.springframework.data.mongodb.core.aggregation.Fields.AggregationField;
 import org.springframework.data.mongodb.core.query.Criteria;
+import org.springframework.data.mongodb.core.query.NearQuery;
 import org.springframework.data.mongodb.core.query.SerializationUtils;
 import org.springframework.util.Assert;
 
@@ -44,9 +45,23 @@ import com.mongodb.DBObject;
  */
 public class Aggregation {
 
-	public static final AggregationOperationContext DEFAULT_CONTEXT = new NoOpAggregationOperationContext();
+	/**
+	 * References the root document, i.e. the top-level document, currently being processed in the aggregation pipeline
+	 * stage.
+	 */
+	public static final String ROOT = SystemVariable.ROOT.toString();
 
-	private final List<AggregationOperation> operations;
+	/**
+	 * References the start of the field path being processed in the aggregation pipeline stage. Unless documented
+	 * otherwise, all stages start with CURRENT the same as ROOT.
+	 */
+	public static final String CURRENT = SystemVariable.CURRENT.toString();
+
+	public static final AggregationOperationContext DEFAULT_CONTEXT = new NoOpAggregationOperationContext();
+	public static final AggregationOptions DEFAULT_OPTIONS = newAggregationOptions().build();
+
+	protected final List<AggregationOperation> operations;
+	private final AggregationOptions options;
 
 	/**
 	 * Creates a new {@link Aggregation} from the given {@link AggregationOperation}s.
@@ -66,6 +81,20 @@ public class Aggregation {
 		return new Aggregation(operations);
 	}
 
+	/**
+	 * Returns a copy of this {@link Aggregation} with the given {@link AggregationOptions} set. Note that options are
+	 * supported in MongoDB version 2.6+.
+	 * 
+	 * @param options must not be {@literal null}.
+	 * @return
+	 * @since 1.6
+	 */
+	public Aggregation withOptions(AggregationOptions options) {
+
+		Assert.notNull(options, "AggregationOptions must not be null.");
+		return new Aggregation(this.operations, options);
+	}
+
 	/**
 	 * Creates a new {@link TypedAggregation} for the given type and {@link AggregationOperation}s.
 	 * 
@@ -92,11 +121,43 @@ public class Aggregation {
 	 * @param aggregationOperations must not be {@literal null} or empty.
 	 */
 	protected Aggregation(AggregationOperation... aggregationOperations) {
+		this(asAggregationList(aggregationOperations));
+	}
+
+	/**
+	 * @param aggregationOperations must not be {@literal null} or empty.
+	 * @return
+	 */
+	protected static List<AggregationOperation> asAggregationList(AggregationOperation... aggregationOperations) {
+
+		Assert.notEmpty(aggregationOperations, "AggregationOperations must not be null or empty!");
+
+		return Arrays.asList(aggregationOperations);
+	}
+
+	/**
+	 * Creates a new {@link Aggregation} from the given {@link AggregationOperation}s.
+	 * 
+	 * @param aggregationOperations must not be {@literal null} or empty.
+	 */
+	protected Aggregation(List<AggregationOperation> aggregationOperations) {
+		this(aggregationOperations, DEFAULT_OPTIONS);
+	}
+
+	/**
+	 * Creates a new {@link Aggregation} from the given {@link AggregationOperation}s.
+	 * 
+	 * @param aggregationOperations must not be {@literal null} or empty.
+	 * @param options must not be {@literal null} or empty.
+	 */
+	protected Aggregation(List<AggregationOperation> aggregationOperations, AggregationOptions options) {
 
 		Assert.notNull(aggregationOperations, "AggregationOperations must not be null!");
-		Assert.isTrue(aggregationOperations.length > 0, "At least one AggregationOperation has to be provided");
+		Assert.isTrue(!aggregationOperations.isEmpty(), "At least one AggregationOperation has to be provided");
+		Assert.notNull(options, "AggregationOptions must not be null!");
 
-		this.operations = Arrays.asList(aggregationOperations);
+		this.operations = aggregationOperations;
+		this.options = options;
 	}
 
 	/**
@@ -231,6 +292,29 @@ public class Aggregation {
 		return Fields.from(field(name, target));
 	}
 
+	/**
+	 * Creates a new {@link GeoNearOperation} instance from the given {@link NearQuery} and the{@code distanceField}. The
+	 * {@code distanceField} defines output field that contains the calculated distance.
+	 * 
+	 * @param query must not be {@literal null}.
+	 * @param distanceField must not be {@literal null} or empty.
+	 * @return
+	 * @since 1.7
+	 */
+	public static GeoNearOperation geoNear(NearQuery query, String distanceField) {
+		return new GeoNearOperation(query, distanceField);
+	}
+
+	/**
+	 * Returns a new {@link AggregationOptions.Builder}.
+	 * 
+	 * @return
+	 * @since 1.6
+	 */
+	public static AggregationOptions.Builder newAggregationOptions() {
+		return new AggregationOptions.Builder();
+	}
+
 	/**
 	 * Converts this {@link Aggregation} specification to a {@link DBObject}.
 	 * 
@@ -248,13 +332,15 @@ public class Aggregation {
 
 			if (operation instanceof FieldsExposingAggregationOperation) {
 				FieldsExposingAggregationOperation exposedFieldsOperation = (FieldsExposingAggregationOperation) operation;
-				context = new ExposedFieldsAggregationOperationContext(exposedFieldsOperation.getFields());
+				context = new ExposedFieldsAggregationOperationContext(exposedFieldsOperation.getFields(), rootContext);
 			}
 		}
 
 		DBObject command = new BasicDBObject("aggregate", inputCollectionName);
 		command.put("pipeline", operationDocuments);
 
+		command = options.applyAndReturnPotentiallyChangedCommand(command);
+
 		return command;
 	}
 
@@ -302,4 +388,51 @@ public class Aggregation {
 			return new FieldReference(new ExposedField(new AggregationField(name), true));
 		}
 	}
+
+	/**
+	 * Describes the system variables available in MongoDB aggregation framework pipeline expressions.
+	 * 
+	 * @author Thomas Darimont
+	 * @see http://docs.mongodb.org/manual/reference/aggregation-variables
+	 */
+	enum SystemVariable {
+
+		ROOT, CURRENT;
+
+		private static final String PREFIX = "$$";
+
+		/**
+		 * Return {@literal true} if the given {@code fieldRef} denotes a well-known system variable, {@literal false}
+		 * otherwise.
+		 * 
+		 * @param fieldRef may be {@literal null}.
+		 * @return
+		 */
+		public static boolean isReferingToSystemVariable(String fieldRef) {
+
+			if (fieldRef == null || !fieldRef.startsWith(PREFIX) || fieldRef.length() <= 2) {
+				return false;
+			}
+
+			int indexOfFirstDot = fieldRef.indexOf('.');
+			String candidate = fieldRef.substring(2, indexOfFirstDot == -1 ? fieldRef.length() : indexOfFirstDot);
+
+			for (SystemVariable value : values()) {
+				if (value.name().equals(candidate)) {
+					return true;
+				}
+			}
+
+			return false;
+		}
+
+		/* 
+		 * (non-Javadoc)
+		 * @see java.lang.Enum#toString()
+		 */
+		@Override
+		public String toString() {
+			return PREFIX.concat(name());
+		}
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/AggregationExpression.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 the original author or authors.
+ * Copyright 2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,29 +13,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.data.mongodb.core.geo;
+package org.springframework.data.mongodb.core.aggregation;
 
-import java.util.List;
+import com.mongodb.DBObject;
 
 /**
- * Common interface for all shapes. Allows building MongoDB representations of them.
+ * An {@link AggregationExpression} can be used with field expressions in aggregation pipeline stages like
+ * {@code project} and {@code group}.
  * 
+ * @author Thomas Darimont
  * @author Oliver Gierke
  */
-public interface Shape {
+interface AggregationExpression {
 
 	/**
-	 * Returns the {@link Shape} as a list of usually {@link Double} or {@link List}s of {@link Double}s. Wildcard bound
-	 * to allow implementations to return a more concrete element type.
+	 * Turns the {@link AggregationExpression} into a {@link DBObject} within the given
+	 * {@link AggregationOperationContext}.
 	 * 
+	 * @param context
 	 * @return
 	 */
-	List<? extends Object> asList();
-
-	/**
-	 * Returns the command to be used to create the {@literal $within} criterion.
-	 * 
-	 * @return
-	 */
-	String getCommand();
+	DBObject toDbObject(AggregationOperationContext context);
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/AggregationFunctionExpressions.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.aggregation;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.springframework.util.Assert;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
+
+/**
+ * An enum of supported {@link AggregationExpression}s in aggregation pipeline stages.
+ * 
+ * @author Thomas Darimont
+ * @author Oliver Gierke
+ * @since 1.10
+ */
+public enum AggregationFunctionExpressions {
+
+	SIZE;
+
+	/**
+	 * Returns an {@link AggregationExpression} build from the current {@link Enum} name and the given parameters.
+	 * 
+	 * @param parameters must not be {@literal null}
+	 * @return
+	 */
+	public AggregationExpression of(Object... parameters) {
+
+		Assert.notNull(parameters, "Parameters must not be null!");
+		return new FunctionExpression(name().toLowerCase(), parameters);
+	}
+
+	/**
+	 * An {@link AggregationExpression} representing a function call.
+	 * 
+	 * @author Thomas Darimont
+	 * @author Oliver Gierke
+	 * @since 1.10
+	 */
+	static class FunctionExpression implements AggregationExpression {
+
+		private final String name;
+		private final List<Object> values;
+
+		/**
+		 * Creates a new {@link FunctionExpression} for the given name and values.
+		 * 
+		 * @param name must not be {@literal null} or empty.
+		 * @param values must not be {@literal null}.
+		 */
+		public FunctionExpression(String name, Object[] values) {
+
+			Assert.hasText(name, "Name must not be null!");
+			Assert.notNull(values, "Values must not be null!");
+
+			this.name = name;
+			this.values = Arrays.asList(values);
+		}
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.aggregation.Expression#toDbObject(org.springframework.data.mongodb.core.aggregation.AggregationOperationContext)
+		 */
+		@Override
+		public DBObject toDbObject(AggregationOperationContext context) {
+
+			List<Object> args = new ArrayList<Object>(values.size());
+
+			for (Object value : values) {
+				args.add(unpack(value, context));
+			}
+
+			return new BasicDBObject("$" + name, args);
+		}
+
+		private static Object unpack(Object value, AggregationOperationContext context) {
+
+			if (value instanceof AggregationExpression) {
+				return ((AggregationExpression) value).toDbObject(context);
+			}
+
+			if (value instanceof Field) {
+				return context.getReference((Field) value).toString();
+			}
+
+			return value;
+		}
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/AggregationOptions.java

@@ -0,0 +1,189 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.aggregation;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
+
+/**
+ * Holds a set of configurable aggregation options that can be used within an aggregation pipeline. A list of support
+ * aggregation options can be found in the MongoDB reference documentation
+ * http://docs.mongodb.org/manual/reference/command/aggregate/#aggregate
+ * 
+ * @author Thomas Darimont
+ * @author Oliver Gierke
+ * @see Aggregation#withOptions(AggregationOptions)
+ * @see TypedAggregation#withOptions(AggregationOptions)
+ * @since 1.6
+ */
+public class AggregationOptions {
+
+	private static final String CURSOR = "cursor";
+	private static final String EXPLAIN = "explain";
+	private static final String ALLOW_DISK_USE = "allowDiskUse";
+
+	private final boolean allowDiskUse;
+	private final boolean explain;
+	private final DBObject cursor;
+
+	/**
+	 * Creates a new {@link AggregationOptions}.
+	 * 
+	 * @param allowDiskUse whether to off-load intensive sort-operations to disk.
+	 * @param explain whether to get the execution plan for the aggregation instead of the actual results.
+	 * @param cursor can be {@literal null}, used to pass additional options to the aggregation.
+	 */
+	public AggregationOptions(boolean allowDiskUse, boolean explain, DBObject cursor) {
+
+		this.allowDiskUse = allowDiskUse;
+		this.explain = explain;
+		this.cursor = cursor;
+	}
+
+	/**
+	 * Enables writing to temporary files. When set to true, aggregation stages can write data to the _tmp subdirectory in
+	 * the dbPath directory.
+	 * 
+	 * @return
+	 */
+	public boolean isAllowDiskUse() {
+		return allowDiskUse;
+	}
+
+	/**
+	 * Specifies to return the information on the processing of the pipeline.
+	 * 
+	 * @return
+	 */
+	public boolean isExplain() {
+		return explain;
+	}
+
+	/**
+	 * Specify a document that contains options that control the creation of the cursor object.
+	 * 
+	 * @return
+	 */
+	public DBObject getCursor() {
+		return cursor;
+	}
+
+	/**
+	 * Returns a new potentially adjusted copy for the given {@code aggregationCommandObject} with the configuration
+	 * applied.
+	 * 
+	 * @param command the aggregation command.
+	 * @return
+	 */
+	DBObject applyAndReturnPotentiallyChangedCommand(DBObject command) {
+
+		DBObject result = new BasicDBObject(command.toMap());
+
+		if (allowDiskUse && !result.containsField(ALLOW_DISK_USE)) {
+			result.put(ALLOW_DISK_USE, allowDiskUse);
+		}
+
+		if (explain && !result.containsField(EXPLAIN)) {
+			result.put(EXPLAIN, explain);
+		}
+
+		if (cursor != null && !result.containsField(CURSOR)) {
+			result.put("cursor", cursor);
+		}
+
+		return result;
+	}
+
+	/**
+	 * Returns a {@link DBObject} representation of this {@link AggregationOptions}.
+	 * 
+	 * @return
+	 */
+	public DBObject toDbObject() {
+
+		DBObject dbo = new BasicDBObject();
+		dbo.put(ALLOW_DISK_USE, allowDiskUse);
+		dbo.put(EXPLAIN, explain);
+		dbo.put(CURSOR, cursor);
+
+		return dbo;
+	}
+
+	/* (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
+	@Override
+	public String toString() {
+		return toDbObject().toString();
+	}
+
+	/**
+	 * A Builder for {@link AggregationOptions}.
+	 * 
+	 * @author Thomas Darimont
+	 */
+	public static class Builder {
+
+		private boolean allowDiskUse;
+		private boolean explain;
+		private DBObject cursor;
+
+		/**
+		 * Defines whether to off-load intensive sort-operations to disk.
+		 * 
+		 * @param allowDiskUse
+		 * @return
+		 */
+		public Builder allowDiskUse(boolean allowDiskUse) {
+
+			this.allowDiskUse = allowDiskUse;
+			return this;
+		}
+
+		/**
+		 * Defines whether to get the execution plan for the aggregation instead of the actual results.
+		 * 
+		 * @param explain
+		 * @return
+		 */
+		public Builder explain(boolean explain) {
+
+			this.explain = explain;
+			return this;
+		}
+
+		/**
+		 * Additional options to the aggregation.
+		 * 
+		 * @param cursor
+		 * @return
+		 */
+		public Builder cursor(DBObject cursor) {
+
+			this.cursor = cursor;
+			return this;
+		}
+
+		/**
+		 * Returns a new {@link AggregationOptions} instance with the given configuration.
+		 * 
+		 * @return
+		 */
+		public AggregationOptions build() {
+			return new AggregationOptions(allowDiskUse, explain, cursor);
+		}
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/AggregationResults.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,7 @@ import com.mongodb.DBObject;
  * 
  * @author Tobias Trelle
  * @author Oliver Gierke
+ * @author Thomas Darimont
  * @param <T> The class in which the results are mapped onto.
  * @since 1.3
  */
@@ -90,6 +91,16 @@ public class AggregationResults<T> implements Iterable<T> {
 		return serverUsed;
 	}
 
+	/**
+	 * Returns the raw result that was returned by the server.
+	 * 
+	 * @return
+	 * @since 1.6
+	 */
+	public DBObject getRawResults() {
+		return rawResults;
+	}
+
 	private String parseServerUsed() {
 
 		Object object = rawResults.get("serverUsed");

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/ExposedFields.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,7 +32,7 @@ import org.springframework.util.CompositeIterator;
  * @author Thomas Darimont
  * @since 1.3
  */
-public class ExposedFields implements Iterable<ExposedField> {
+public final class ExposedFields implements Iterable<ExposedField> {
 
 	private static final List<ExposedField> NO_FIELDS = Collections.emptyList();
 	private static final ExposedFields EMPTY = new ExposedFields(NO_FIELDS, NO_FIELDS);
@@ -88,7 +88,7 @@ public class ExposedFields implements Iterable<ExposedField> {
 	}
 
 	/**
-	 * Creates a new {@link ExposedFields} instance for the given fields in either sythetic or non-synthetic way.
+	 * Creates a new {@link ExposedFields} instance for the given fields in either synthetic or non-synthetic way.
 	 * 
 	 * @param fields must not be {@literal null}.
 	 * @param synthetic
@@ -107,7 +107,7 @@ public class ExposedFields implements Iterable<ExposedField> {
 	}
 
 	/**
-	 * Creates a new {@link ExposedFields} with the given orignals and synthetics.
+	 * Creates a new {@link ExposedFields} with the given originals and synthetics.
 	 * 
 	 * @param originals must not be {@literal null}.
 	 * @param synthetic must not be {@literal null}.
@@ -268,14 +268,21 @@ public class ExposedFields implements Iterable<ExposedField> {
 			return field.isAliased();
 		}
 
+		/**
+		 * @return the synthetic
+		 */
+		public boolean isSynthetic() {
+			return synthetic;
+		}
+
 		/**
 		 * Returns whether the field can be referred to using the given name.
 		 * 
-		 * @param input
+		 * @param name
 		 * @return
 		 */
-		public boolean canBeReferredToBy(String input) {
-			return getTarget().equals(input);
+		public boolean canBeReferredToBy(String name) {
+			return getName().equals(name) || getTarget().equals(name);
 		}
 
 		/*
@@ -340,14 +347,8 @@ public class ExposedFields implements Iterable<ExposedField> {
 		public FieldReference(ExposedField field) {
 
 			Assert.notNull(field, "ExposedField must not be null!");
-			this.field = field;
-		}
 
-		/**
-		 * @return
-		 */
-		public boolean isSynthetic() {
-			return field.synthetic;
+			this.field = field;
 		}
 
 		/**
@@ -361,6 +362,16 @@ public class ExposedFields implements Iterable<ExposedField> {
 			return field.synthetic ? target : String.format("%s.%s", Fields.UNDERSCORE_ID, target);
 		}
 
+		/**
+		 * Returns the reference value for the given field reference. Will return 1 for a synthetic, unaliased field or the
+		 * raw rendering of the reference otherwise.
+		 * 
+		 * @return
+		 */
+		public Object getReferenceValue() {
+			return field.synthetic && !field.isAliased() ? 1 : toString();
+		}
+
 		/*
 		 * (non-Javadoc)
 		 * @see java.lang.Object#toString()

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/ExposedFieldsAggregationOperationContext.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,16 +32,22 @@ import com.mongodb.DBObject;
 class ExposedFieldsAggregationOperationContext implements AggregationOperationContext {
 
 	private final ExposedFields exposedFields;
+	private final AggregationOperationContext rootContext;
 
 	/**
-	 * Creates a new {@link ExposedFieldsAggregationOperationContext} from the given {@link ExposedFields}.
+	 * Creates a new {@link ExposedFieldsAggregationOperationContext} from the given {@link ExposedFields}. Uses the given
+	 * {@link AggregationOperationContext} to perform a mapping to mongo types if necessary.
 	 * 
 	 * @param exposedFields must not be {@literal null}.
+	 * @param rootContext must not be {@literal null}.
 	 */
-	public ExposedFieldsAggregationOperationContext(ExposedFields exposedFields) {
+	public ExposedFieldsAggregationOperationContext(ExposedFields exposedFields, AggregationOperationContext rootContext) {
 
 		Assert.notNull(exposedFields, "ExposedFields must not be null!");
+		Assert.notNull(rootContext, "RootContext must not be null!");
+
 		this.exposedFields = exposedFields;
+		this.rootContext = rootContext;
 	}
 
 	/* 
@@ -50,7 +56,7 @@ class ExposedFieldsAggregationOperationContext implements AggregationOperationCo
 	 */
 	@Override
 	public DBObject getMappedObject(DBObject dbObject) {
-		return dbObject;
+		return rootContext.getMappedObject(dbObject);
 	}
 
 	/* 
@@ -59,7 +65,7 @@ class ExposedFieldsAggregationOperationContext implements AggregationOperationCo
 	 */
 	@Override
 	public FieldReference getReference(Field field) {
-		return getReference(field.getTarget());
+		return getReference(field, field.getTarget());
 	}
 
 	/* 
@@ -68,11 +74,42 @@ class ExposedFieldsAggregationOperationContext implements AggregationOperationCo
 	 */
 	@Override
 	public FieldReference getReference(String name) {
+		return getReference(null, name);
+	}
 
-		ExposedField field = exposedFields.getField(name);
+	/**
+	 * Returns a {@link FieldReference} to the given {@link Field} with the given {@code name}.
+	 * 
+	 * @param field may be {@literal null}
+	 * @param name must not be {@literal null}
+	 * @return
+	 */
+	private FieldReference getReference(Field field, String name) {
 
-		if (field != null) {
-			return new FieldReference(field);
+		Assert.notNull(name, "Name must not be null!");
+
+		ExposedField exposedField = exposedFields.getField(name);
+
+		if (exposedField != null) {
+
+			if (field != null) {
+				// we return a FieldReference to the given field directly to make sure that we reference the proper alias here.
+				return new FieldReference(new ExposedField(field, exposedField.isSynthetic()));
+			}
+
+			return new FieldReference(exposedField);
+		}
+
+		if (name.contains(".")) {
+
+			// for nested field references we only check that the root field exists.
+			ExposedField rootField = exposedFields.getField(name.split("\\.")[0]);
+
+			if (rootField != null) {
+
+				// We have to synthetic to true, in order to render the field-name as is.
+				return new FieldReference(new ExposedField(name, true));
+			}
 		}
 
 		throw new IllegalArgumentException(String.format("Invalid reference '%s'!", name));

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/Fields.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,15 +30,16 @@ import org.springframework.util.StringUtils;
  * Value object to capture a list of {@link Field} instances.
  * 
  * @author Oliver Gierke
+ * @author Thomas Darimont
  * @since 1.3
  */
-public class Fields implements Iterable<Field> {
+public final class Fields implements Iterable<Field> {
 
 	private static final String AMBIGUOUS_EXCEPTION = "Found two fields both using '%s' as name: %s and %s! Please "
 			+ "customize your field definitions to get to unique field names!";
 
-	public static String UNDERSCORE_ID = "_id";
-	public static String UNDERSCORE_ID_REF = "$_id";
+	public static final String UNDERSCORE_ID = "_id";
+	public static final String UNDERSCORE_ID_REF = "$_id";
 
 	private final List<Field> fields;
 
@@ -83,6 +84,15 @@ public class Fields implements Iterable<Field> {
 		return new AggregationField(name);
 	}
 
+	/**
+	 * Creates a {@link Field} with the given {@code name} and {@code target}.
+	 * <p>
+	 * The {@code target} is the name of the backing document field that will be aliased with {@code name}.
+	 *
+	 * @param name
+	 * @param target must not be {@literal null} or empty
+	 * @return
+	 */
 	public static Field field(String name, String target) {
 		Assert.hasText(target, "Target must not be null or empty!");
 		return new AggregationField(name, target);
@@ -186,15 +196,24 @@ public class Fields implements Iterable<Field> {
 		private final String target;
 
 		/**
-		 * Creates an aggregation fieldwith the given name. As no target is set explicitly, the name will be used as target
-		 * as well.
+		 * Creates an aggregation field with the given {@code name}.
 		 * 
-		 * @param key
+		 * @see AggregationField#AggregationField(String, String).
+		 * @param name must not be {@literal null} or empty
 		 */
-		public AggregationField(String key) {
-			this(key, null);
+		public AggregationField(String name) {
+			this(name, null);
 		}
 
+		/**
+		 * Creates an aggregation field with the given {@code name} and {@code target}.
+		 * <p>
+		 * The {@code name} serves as an alias for the actual backing document field denoted by {@code target}. If no target
+		 * is set explicitly, the name will be used as target.
+		 * 
+		 * @param name must not be {@literal null} or empty
+		 * @param target
+		 */
 		public AggregationField(String name, String target) {
 
 			String nameToSet = cleanUp(name);
@@ -203,7 +222,7 @@ public class Fields implements Iterable<Field> {
 			Assert.hasText(nameToSet, "AggregationField name must not be null or empty!");
 
 			if (target == null && name.contains(".")) {
-				this.name = nameToSet.substring(nameToSet.indexOf(".") + 1);
+				this.name = nameToSet.substring(nameToSet.indexOf('.') + 1);
 				this.target = nameToSet;
 			} else {
 				this.name = nameToSet;
@@ -217,6 +236,10 @@ public class Fields implements Iterable<Field> {
 				return source;
 			}
 
+			if (Aggregation.SystemVariable.isReferingToSystemVariable(source)) {
+				return source;
+			}
+
 			int dollarIndex = source.lastIndexOf('$');
 			return dollarIndex == -1 ? source : source.substring(dollarIndex + 1);
 		}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/GeoNearOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,17 +22,33 @@ import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;
 
 /**
+ * Represents a {@code geoNear} aggregation operation.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#geoNear(NearQuery, String)} instead of creating
+ * instances of this class directly.
+ * 
  * @author Thomas Darimont
  * @since 1.3
  */
 public class GeoNearOperation implements AggregationOperation {
 
 	private final NearQuery nearQuery;
+	private final String distanceField;
 
-	public GeoNearOperation(NearQuery nearQuery) {
+	/**
+	 * Creates a new {@link GeoNearOperation} from the given {@link NearQuery} and the given distance field. The
+	 * {@code distanceField} defines output field that contains the calculated distance.
+	 * 
+	 * @param query must not be {@literal null}.
+	 * @param distanceField must not be {@literal null}.
+	 */
+	public GeoNearOperation(NearQuery nearQuery, String distanceField) {
+
+		Assert.notNull(nearQuery, "NearQuery must not be null.");
+		Assert.hasLength(distanceField, "Distance field must not be null or empty.");
 
-		Assert.notNull(nearQuery);
 		this.nearQuery = nearQuery;
+		this.distanceField = distanceField;
 	}
 
 	/* 
@@ -41,6 +57,10 @@ public class GeoNearOperation implements AggregationOperation {
 	 */
 	@Override
 	public DBObject toDBObject(AggregationOperationContext context) {
-		return new BasicDBObject("$geoNear", context.getMappedObject(nearQuery.toDBObject()));
+
+		BasicDBObject command = (BasicDBObject) context.getMappedObject(nearQuery.toDBObject());
+		command.put("distanceField", distanceField);
+
+		return new BasicDBObject("$geoNear", command);
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/GroupOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,6 +31,9 @@ import com.mongodb.DBObject;
 
 /**
  * Encapsulates the aggregation framework {@code $group}-operation.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#group(Fields)} instead of creating instances of this
+ * class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/group/#stage._S_group
  * @author Sebastian Herold
@@ -99,7 +102,7 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 	 * 
 	 * @author Thomas Darimont
 	 */
-	public class GroupOperationBuilder {
+	public static final class GroupOperationBuilder {
 
 		private final GroupOperation groupOperation;
 		private final Operation operation;
@@ -190,6 +193,16 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 		return newBuilder(GroupOps.LAST, reference, null);
 	}
 
+	/**
+	 * Generates an {@link GroupOperationBuilder} for an {@code $last}-expression for the given {@link AggregationExpression}.
+	 * 
+	 * @param expr
+	 * @return
+	 */
+	public GroupOperationBuilder last(AggregationExpression expr) {
+		return newBuilder(GroupOps.LAST, null, expr);
+	}
+
 	/**
 	 * Generates an {@link GroupOperationBuilder} for a {@code $first}-expression for the given field-reference.
 	 * 
@@ -200,6 +213,16 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 		return newBuilder(GroupOps.FIRST, reference, null);
 	}
 
+	/**
+	 * Generates an {@link GroupOperationBuilder} for a {@code $first}-expression for the given {@link AggregationExpression}.
+	 * 
+	 * @param expr
+	 * @return
+	 */
+	public GroupOperationBuilder first(AggregationExpression expr) {
+		return newBuilder(GroupOps.FIRST, null, expr);
+	}
+
 	/**
 	 * Generates an {@link GroupOperationBuilder} for an {@code $avg}-expression for the given field-reference.
 	 * 
@@ -210,6 +233,16 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 		return newBuilder(GroupOps.AVG, reference, null);
 	}
 
+	/**
+	 * Generates an {@link GroupOperationBuilder} for an {@code $avg}-expression for the given {@link AggregationExpression}.
+	 * 
+	 * @param expr
+	 * @return
+	 */
+	public GroupOperationBuilder avg(AggregationExpression expr) {
+		return newBuilder(GroupOps.AVG, null, expr);
+	}
+
 	/**
 	 * Generates an {@link GroupOperationBuilder} for an {@code $push}-expression for the given field-reference.
 	 * 
@@ -244,6 +277,16 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 		return newBuilder(GroupOps.MIN, reference, null);
 	}
 
+	/**
+	 * Generates an {@link GroupOperationBuilder} for an {@code $min}-expression that for the given {@link AggregationExpression}.
+	 * 
+	 * @param expr
+	 * @return
+	 */
+	public GroupOperationBuilder min(AggregationExpression expr) {
+		return newBuilder(GroupOps.MIN, null, expr);
+	}
+
 	/**
 	 * Generates an {@link GroupOperationBuilder} for an {@code $max}-expression that for the given field-reference.
 	 * 
@@ -254,6 +297,16 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 		return newBuilder(GroupOps.MAX, reference, null);
 	}
 
+	/**
+	 * Generates an {@link GroupOperationBuilder} for an {@code $max}-expression that for the given {@link AggregationExpression}.
+	 * 
+	 * @param expr
+	 * @return
+	 */
+	public GroupOperationBuilder max(AggregationExpression expr) {
+		return newBuilder(GroupOps.MAX, null, expr);
+	}
+
 	private GroupOperationBuilder newBuilder(Keyword keyword, String reference, Object value) {
 		return new GroupOperationBuilder(this, new Operation(keyword, null, reference, value));
 	}
@@ -364,7 +417,21 @@ public class GroupOperation implements FieldsExposingAggregationOperation {
 		}
 
 		public Object getValue(AggregationOperationContext context) {
-			return reference == null ? value : context.getReference(reference).toString();
+
+			if (reference == null) {
+
+				if (value instanceof AggregationExpression) {
+					return ((AggregationExpression) value).toDbObject(context);
+				}
+
+				return value;
+			}
+
+			if (Aggregation.SystemVariable.isReferingToSystemVariable(reference)) {
+				return reference;
+			}
+
+			return context.getReference(reference).toString();
 		}
 
 		@Override

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/LimitOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,14 +21,17 @@ import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;
 
 /**
- * Encapsulates the {@code $limit}-operation
+ * Encapsulates the {@code $limit}-operation.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#limit(long)} instead of creating instances of this
+ * class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/limit/
  * @author Thomas Darimont
  * @author Oliver Gierke
  * @since 1.3
  */
-class LimitOperation implements AggregationOperation {
+public class LimitOperation implements AggregationOperation {
 
 	private final long maxElements;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/MatchOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,14 +15,18 @@
  */
 package org.springframework.data.mongodb.core.aggregation;
 
-import org.springframework.data.mongodb.core.query.Criteria;
+import org.springframework.data.mongodb.core.query.CriteriaDefinition;
 import org.springframework.util.Assert;
 
 import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;
 
 /**
- * Encapsulates the {@code $match}-operation
+ * Encapsulates the {@code $match}-operation.
+ * <p>
+ * We recommend to use the static factory method
+ * {@link Aggregation#match(org.springframework.data.mongodb.core.query.Criteria)} instead of creating instances of this
+ * class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/match/
  * @author Sebastian Herold
@@ -32,17 +36,17 @@ import com.mongodb.DBObject;
  */
 public class MatchOperation implements AggregationOperation {
 
-	private final Criteria criteria;
+	private final CriteriaDefinition criteriaDefinition;
 
 	/**
-	 * Creates a new {@link MatchOperation} for the given {@link Criteria}.
+	 * Creates a new {@link MatchOperation} for the given {@link CriteriaDefinition}.
 	 * 
-	 * @param criteria must not be {@literal null}.
+	 * @param criteriaDefinition must not be {@literal null}.
 	 */
-	public MatchOperation(Criteria criteria) {
+	public MatchOperation(CriteriaDefinition criteriaDefinition) {
 
-		Assert.notNull(criteria, "Criteria must not be null!");
-		this.criteria = criteria;
+		Assert.notNull(criteriaDefinition, "Criteria must not be null!");
+		this.criteriaDefinition = criteriaDefinition;
 	}
 
 	/* 
@@ -51,6 +55,6 @@ public class MatchOperation implements AggregationOperation {
 	 */
 	@Override
 	public DBObject toDBObject(AggregationOperationContext context) {
-		return new BasicDBObject("$match", context.getMappedObject(criteria.getCriteriaObject()));
+		return new BasicDBObject("$match", context.getMappedObject(criteriaDefinition.getCriteriaObject()));
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/ProjectionOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,24 +21,27 @@ import java.util.Collections;
 import java.util.List;
 
 import org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField;
-import org.springframework.data.mongodb.core.aggregation.ExposedFields.FieldReference;
+import org.springframework.data.mongodb.core.aggregation.Fields.AggregationField;
 import org.springframework.data.mongodb.core.aggregation.ProjectionOperation.ProjectionOperationBuilder.FieldProjection;
 import org.springframework.util.Assert;
 
-import com.mongodb.BasicDBList;
 import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;
 
 /**
- * Encapsulates the aggregation framework {@code $project}-operation. Projection of field to be used in an
- * {@link Aggregation}. A projection is similar to a {@link Field} inclusion/exclusion but more powerful. It can
- * generate new fields, change values of given field etc.
+ * Encapsulates the aggregation framework {@code $project}-operation.
  * <p>
+ * Projection of field to be used in an {@link Aggregation}. A projection is similar to a {@link Field}
+ * inclusion/exclusion but more powerful. It can generate new fields, change values of given field etc.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#project(Fields)} instead of creating instances of
+ * this class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/project/
  * @author Tobias Trelle
  * @author Thomas Darimont
  * @author Oliver Gierke
+ * @author Christoph Strobl
  * @since 1.3
  */
 public class ProjectionOperation implements FieldsExposingAggregationOperation {
@@ -120,6 +123,10 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		return new ExpressionProjectionOperationBuilder(expression, this, params);
 	}
 
+	public ProjectionOperationBuilder and(AggregationExpression expression) {
+		return new ProjectionOperationBuilder(expression, this, null);
+	}
+
 	/**
 	 * Excludes the given fields from the projection.
 	 * 
@@ -236,24 +243,51 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 	}
 
 	/**
+	 * An {@link ProjectionOperationBuilder} that is used for SpEL expression based projections.
+	 * 
 	 * @author Thomas Darimont
 	 */
-	public static class ExpressionProjectionOperationBuilder extends AbstractProjectionOperationBuilder {
+	public static class ExpressionProjectionOperationBuilder extends ProjectionOperationBuilder {
 
 		private final Object[] params;
+		private final String expression;
 
 		/**
 		 * Creates a new {@link ExpressionProjectionOperationBuilder} for the given value, {@link ProjectionOperation} and
 		 * parameters.
 		 * 
-		 * @param value must not be {@literal null}.
+		 * @param expression must not be {@literal null}.
 		 * @param operation must not be {@literal null}.
 		 * @param parameters
 		 */
-		public ExpressionProjectionOperationBuilder(Object value, ProjectionOperation operation, Object[] parameters) {
+		public ExpressionProjectionOperationBuilder(String expression, ProjectionOperation operation, Object[] parameters) {
 
-			super(value, operation);
-			this.params = parameters;
+			super(expression, operation, null);
+			this.expression = expression;
+			this.params = parameters.clone();
+		}
+
+		/* (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.aggregation.ProjectionOperation.ProjectionOperationBuilder#project(java.lang.String, java.lang.Object[])
+		 */
+		@Override
+		public ProjectionOperationBuilder project(String operation, final Object... values) {
+
+			OperationProjection operationProjection = new OperationProjection(Fields.field(value.toString()), operation,
+					values) {
+				@Override
+				protected List<Object> getOperationArguments(AggregationOperationContext context) {
+
+					List<Object> result = new ArrayList<Object>(values.length + 1);
+					result.add(ExpressionProjection.toMongoExpression(context,
+							ExpressionProjectionOperationBuilder.this.expression, ExpressionProjectionOperationBuilder.this.params));
+					result.addAll(Arrays.asList(values));
+
+					return result;
+				}
+			};
+
+			return new ProjectionOperationBuilder(value, this.operation.and(operationProjection), operationProjection);
 		}
 
 		/*
@@ -263,7 +297,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		@Override
 		public ProjectionOperation as(String alias) {
 
-			Field expressionField = Fields.field(alias, "expr");
+			Field expressionField = Fields.field(alias, alias);
 			return this.operation.and(new ExpressionProjection(expressionField, this.value.toString(), params));
 		}
 
@@ -295,7 +329,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 				Assert.notNull(parameters, "Parameters must not be null!");
 
 				this.expression = expression;
-				this.params = parameters;
+				this.params = parameters.clone();
 			}
 
 			/* 
@@ -304,7 +338,11 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 			 */
 			@Override
 			public DBObject toDBObject(AggregationOperationContext context) {
-				return new BasicDBObject(getExposedField().getName(), TRANSFORMER.transform(expression, context, params));
+				return new BasicDBObject(getExposedField().getName(), toMongoExpression(context, expression, params));
+			}
+
+			protected static Object toMongoExpression(AggregationOperationContext context, String expression, Object[] params) {
+				return TRANSFORMER.transform(expression, context, params);
 			}
 		}
 	}
@@ -317,8 +355,10 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 	 */
 	public static class ProjectionOperationBuilder extends AbstractProjectionOperationBuilder {
 
+		private static final String NUMBER_NOT_NULL = "Number must not be null!";
+		private static final String FIELD_REFERENCE_NOT_NULL = "Field reference must not be null!";
+
 		private final String name;
-		private final ProjectionOperation operation;
 		private final OperationProjection previousProjection;
 
 		/**
@@ -333,7 +373,23 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 			super(name, operation);
 
 			this.name = name;
-			this.operation = operation;
+			this.previousProjection = previousProjection;
+		}
+
+		/**
+		 * Creates a new {@link ProjectionOperationBuilder} for the field with the given value on top of the given
+		 * {@link ProjectionOperation}.
+		 * 
+		 * @param value
+		 * @param operation
+		 * @param previousProjection
+		 */
+		protected ProjectionOperationBuilder(Object value, ProjectionOperation operation,
+				OperationProjection previousProjection) {
+
+			super(value, operation);
+
+			this.name = null;
 			this.previousProjection = previousProjection;
 		}
 
@@ -370,9 +426,13 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 
 			if (this.previousProjection != null) {
 				return this.operation.andReplaceLastOneWith(this.previousProjection.withAlias(alias));
-			} else {
-				return this.operation.and(new FieldProjection(Fields.field(alias, name), null));
 			}
+
+			if (value instanceof AggregationExpression) {
+				return this.operation.and(new ExpressionProjection(Fields.field(alias), (AggregationExpression) value));
+			}
+
+			return this.operation.and(new FieldProjection(Fields.field(alias, name), null));
 		}
 
 		/**
@@ -383,7 +443,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder plus(Number number) {
 
-			Assert.notNull(number, "Number must not be null!");
+			Assert.notNull(number, NUMBER_NOT_NULL);
 			return project("add", number);
 		}
 
@@ -420,7 +480,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder minus(String fieldReference) {
 
-			Assert.notNull(fieldReference, "Field reference must not be null!");
+			Assert.notNull(fieldReference, FIELD_REFERENCE_NOT_NULL);
 			return project("subtract", Fields.field(fieldReference));
 		}
 
@@ -432,7 +492,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder multiply(Number number) {
 
-			Assert.notNull(number, "Number must not be null!");
+			Assert.notNull(number, NUMBER_NOT_NULL);
 			return project("multiply", number);
 		}
 
@@ -445,7 +505,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder multiply(String fieldReference) {
 
-			Assert.notNull(fieldReference, "Field reference must not be null!");
+			Assert.notNull(fieldReference, FIELD_REFERENCE_NOT_NULL);
 			return project("multiply", Fields.field(fieldReference));
 		}
 
@@ -457,7 +517,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder divide(Number number) {
 
-			Assert.notNull(number, "Number must not be null!");
+			Assert.notNull(number, FIELD_REFERENCE_NOT_NULL);
 			Assert.isTrue(Math.abs(number.intValue()) != 0, "Number must not be zero!");
 			return project("divide", number);
 		}
@@ -471,7 +531,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder divide(String fieldReference) {
 
-			Assert.notNull(fieldReference, "Field reference must not be null!");
+			Assert.notNull(fieldReference, FIELD_REFERENCE_NOT_NULL);
 			return project("divide", Fields.field(fieldReference));
 		}
 
@@ -484,7 +544,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder mod(Number number) {
 
-			Assert.notNull(number, "Number must not be null!");
+			Assert.notNull(number, NUMBER_NOT_NULL);
 			Assert.isTrue(Math.abs(number.intValue()) != 0, "Number must not be zero!");
 			return project("mod", number);
 		}
@@ -498,10 +558,14 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 */
 		public ProjectionOperationBuilder mod(String fieldReference) {
 
-			Assert.notNull(fieldReference, "Field reference must not be null!");
+			Assert.notNull(fieldReference, FIELD_REFERENCE_NOT_NULL);
 			return project("mod", Fields.field(fieldReference));
 		}
 
+		public ProjectionOperationBuilder size() {
+			return project("size");
+		}
+
 		/* 
 		 * (non-Javadoc)
 		 * @see org.springframework.data.mongodb.core.aggregation.AggregationOperation#toDBObject(org.springframework.data.mongodb.core.aggregation.AggregationOperationContext)
@@ -519,8 +583,9 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		 * @return
 		 */
 		public ProjectionOperationBuilder project(String operation, Object... values) {
-			OperationProjection projectionOperation = new OperationProjection(Fields.field(name), operation, values);
-			return new ProjectionOperationBuilder(name, this.operation.and(projectionOperation), projectionOperation);
+			OperationProjection operationProjection = new OperationProjection(Fields.field(value.toString()), operation,
+					values);
+			return new ProjectionOperationBuilder(value, this.operation.and(operationProjection), operationProjection);
 		}
 
 		/**
@@ -625,9 +690,12 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 				// implicit reference or explicit include?
 				if (value == null || Boolean.TRUE.equals(value)) {
 
+					if (Aggregation.SystemVariable.isReferingToSystemVariable(field.getTarget())) {
+						return field.getTarget();
+					}
+
 					// check whether referenced field exists in the context
-					FieldReference reference = context.getReference(field.getTarget());
-					return reference.isSynthetic() && !field.isAliased() ? 1 : reference.toString();
+					return context.getReference(field).getReferenceValue();
 
 				} else if (Boolean.FALSE.equals(value)) {
 
@@ -648,7 +716,7 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 			/**
 			 * Creates a new {@link OperationProjection} for the given field.
 			 * 
-			 * @param name the name of the field to add the operation projection for, must not be {@literal null} or empty.
+			 * @param field the name of the field to add the operation projection for, must not be {@literal null} or empty.
 			 * @param operation the actual operation key, must not be {@literal null} or empty.
 			 * @param values the values to pass into the operation, must not be {@literal null}.
 			 */
@@ -671,18 +739,15 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 			@Override
 			public DBObject toDBObject(AggregationOperationContext context) {
 
-				BasicDBList values = new BasicDBList();
-				values.addAll(buildReferences(context));
+				DBObject inner = new BasicDBObject("$" + operation, getOperationArguments(context));
 
-				DBObject inner = new BasicDBObject("$" + operation, values);
-
-				return new BasicDBObject(this.field.getName(), inner);
+				return new BasicDBObject(getField().getName(), inner);
 			}
 
-			private List<Object> buildReferences(AggregationOperationContext context) {
+			protected List<Object> getOperationArguments(AggregationOperationContext context) {
 
 				List<Object> result = new ArrayList<Object>(values.size());
-				result.add(context.getReference(field.getTarget()).toString());
+				result.add(context.getReference(getField().getName()).toString());
 
 				for (Object element : values) {
 					result.add(element instanceof Field ? context.getReference((Field) element).toString() : element);
@@ -691,6 +756,29 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 				return result;
 			}
 
+			/**
+			 * Returns the field that holds the {@link OperationProjection}.
+			 * 
+			 * @return
+			 */
+			protected Field getField() {
+				return field;
+			}
+
+			/*
+			 * (non-Javadoc)
+			 * @see org.springframework.data.mongodb.core.aggregation.ProjectionOperation.Projection#getExposedField()
+			 */
+			@Override
+			public ExposedField getExposedField() {
+
+				if (!getField().isAliased()) {
+					return super.getExposedField();
+				}
+
+				return new ExposedField(new AggregationField(getField().getName()), true);
+			}
+
 			/**
 			 * Creates a new instance of this {@link OperationProjection} with the given alias.
 			 * 
@@ -698,7 +786,27 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 			 * @return
 			 */
 			public OperationProjection withAlias(String alias) {
-				return new OperationProjection(Fields.field(alias, this.field.getName()), operation, values.toArray());
+
+				final Field aliasedField = Fields.field(alias, this.field.getName());
+				return new OperationProjection(aliasedField, operation, values.toArray()) {
+
+					/* (non-Javadoc)
+					 * @see org.springframework.data.mongodb.core.aggregation.ProjectionOperation.ProjectionOperationBuilder.OperationProjection#getField()
+					 */
+					@Override
+					protected Field getField() {
+						return aliasedField;
+					}
+
+					@Override
+					protected List<Object> getOperationArguments(AggregationOperationContext context) {
+
+						// We have to make sure that we use the arguments from the "previous" OperationProjection that we replace
+						// with this new instance.
+
+						return OperationProjection.this.getOperationArguments(context);
+					}
+				};
 			}
 		}
 
@@ -730,6 +838,96 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 				return new BasicDBObject(name, nestedObject);
 			}
 		}
+
+		/**
+		 * Extracts the minute from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractMinute() {
+			return project("minute");
+		}
+
+		/**
+		 * Extracts the hour from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractHour() {
+			return project("hour");
+		}
+
+		/**
+		 * Extracts the second from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractSecond() {
+			return project("second");
+		}
+
+		/**
+		 * Extracts the millisecond from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractMillisecond() {
+			return project("millisecond");
+		}
+
+		/**
+		 * Extracts the year from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractYear() {
+			return project("year");
+		}
+
+		/**
+		 * Extracts the month from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractMonth() {
+			return project("month");
+		}
+
+		/**
+		 * Extracts the week from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractWeek() {
+			return project("week");
+		}
+
+		/**
+		 * Extracts the dayOfYear from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractDayOfYear() {
+			return project("dayOfYear");
+		}
+
+		/**
+		 * Extracts the dayOfMonth from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractDayOfMonth() {
+			return project("dayOfMonth");
+		}
+
+		/**
+		 * Extracts the dayOfWeek from a date expression.
+		 * 
+		 * @return
+		 */
+		public ProjectionOperationBuilder extractDayOfWeek() {
+			return project("dayOfWeek");
+		}
 	}
 
 	/**
@@ -771,4 +969,30 @@ public class ProjectionOperation implements FieldsExposingAggregationOperation {
 		public abstract DBObject toDBObject(AggregationOperationContext context);
 	}
 
+	/**
+	 * @author Thomas Darimont
+	 */
+	static class ExpressionProjection extends Projection {
+
+		private final AggregationExpression expression;
+		private final Field field;
+
+		/**
+		 * Creates a new {@link ExpressionProjection}.
+		 * 
+		 * @param field
+		 * @param expression
+		 */
+		public ExpressionProjection(Field field, AggregationExpression expression) {
+
+			super(field);
+			this.field = field;
+			this.expression = expression;
+		}
+
+		@Override
+		public DBObject toDBObject(AggregationOperationContext context) {
+			return new BasicDBObject(field.getName(), expression.toDbObject(context));
+		}
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/SkipOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,6 +22,9 @@ import com.mongodb.DBObject;
 
 /**
  * Encapsulates the aggregation framework {@code $skip}-operation.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#skip(int)} instead of creating instances of this
+ * class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/skip/
  * @author Thomas Darimont

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/SortOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,6 +26,9 @@ import com.mongodb.DBObject;
 
 /**
  * Encapsulates the aggregation framework {@code $sort}-operation.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#sort(Direction, String...)} instead of creating
+ * instances of this class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/sort/#pipe._S_sort
  * @author Thomas Darimont

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/SpelExpressionTransformer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -495,7 +495,7 @@ class SpelExpressionTransformer implements AggregationExpressionTransformer {
 
 			if (currentNode.hasfirstChildNotOfType(Indexer.class)) {
 				// we have a property path expression like: foo.bar -> render as reference
-				return context.getFieldReference().toString();
+				return context.addToPreviousOrReturn(context.getFieldReference().toString());
 			}
 
 			return context.addToPreviousOrReturn(currentNode.getValue());

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/TypeBasedAggregationOperationContext.java

@@ -88,14 +88,16 @@ public class TypeBasedAggregationOperationContext implements AggregationOperatio
 	 */
 	@Override
 	public FieldReference getReference(String name) {
-
-		PersistentPropertyPath<MongoPersistentProperty> propertyPath = mappingContext.getPersistentPropertyPath(name, type);
-
-		return getReferenceFor(field(propertyPath.getLeafProperty().getName(),
-				propertyPath.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE)));
+		return getReferenceFor(field(name));
 	}
 
 	private FieldReference getReferenceFor(Field field) {
-		return new FieldReference(new ExposedField(field, true));
+
+		PersistentPropertyPath<MongoPersistentProperty> propertyPath = mappingContext.getPersistentPropertyPath(
+				field.getTarget(), type);
+		Field mappedField = field(propertyPath.getLeafProperty().getName(),
+				propertyPath.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE));
+
+		return new FieldReference(new ExposedField(mappedField, true));
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/TypedAggregation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
  */
 package org.springframework.data.mongodb.core.aggregation;
 
+import java.util.List;
+
 import org.springframework.util.Assert;
 
 /**
@@ -30,11 +32,34 @@ public class TypedAggregation<I> extends Aggregation {
 	/**
 	 * Creates a new {@link TypedAggregation} from the given {@link AggregationOperation}s.
 	 * 
+	 * @param inputType must not be {@literal null}.
 	 * @param operations must not be {@literal null} or empty.
 	 */
 	public TypedAggregation(Class<I> inputType, AggregationOperation... operations) {
+		this(inputType, asAggregationList(operations));
+	}
 
-		super(operations);
+	/**
+	 * Creates a new {@link TypedAggregation} from the given {@link AggregationOperation}s.
+	 * 
+	 * @param inputType must not be {@literal null}.
+	 * @param operations must not be {@literal null} or empty.
+	 */
+	public TypedAggregation(Class<I> inputType, List<AggregationOperation> operations) {
+		this(inputType, operations, DEFAULT_OPTIONS);
+	}
+
+	/**
+	 * Creates a new {@link TypedAggregation} from the given {@link AggregationOperation}s and the given
+	 * {@link AggregationOptions}.
+	 * 
+	 * @param inputType must not be {@literal null}.
+	 * @param operations must not be {@literal null} or empty.
+	 * @param options must not be {@literal null}.
+	 */
+	public TypedAggregation(Class<I> inputType, List<AggregationOperation> operations, AggregationOptions options) {
+
+		super(operations, options);
 
 		Assert.notNull(inputType, "Input type must not be null!");
 		this.inputType = inputType;
@@ -48,4 +73,14 @@ public class TypedAggregation<I> extends Aggregation {
 	public Class<I> getInputType() {
 		return inputType;
 	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.aggregation.Aggregation#withOptions(org.springframework.data.mongodb.core.aggregation.AggregationOptions)
+	 */
+	public TypedAggregation<I> withOptions(AggregationOptions options) {
+
+		Assert.notNull(options, "AggregationOptions must not be null.");
+		return new TypedAggregation<I>(inputType, operations, options);
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/UnwindOperation.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,9 @@ import com.mongodb.DBObject;
 
 /**
  * Encapsulates the aggregation framework {@code $unwind}-operation.
+ * <p>
+ * We recommend to use the static factory method {@link Aggregation#unwind(String)} instead of creating instances of
+ * this class directly.
  * 
  * @see http://docs.mongodb.org/manual/reference/aggregation/unwind/#pipe._S_unwind
  * @author Thomas Darimont

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/AbstractMongoConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@ import java.math.BigInteger;
 import org.bson.types.ObjectId;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.core.convert.ConversionService;
-import org.springframework.core.convert.support.ConversionServiceFactory;
+import org.springframework.core.convert.support.DefaultConversionService;
 import org.springframework.core.convert.support.GenericConversionService;
 import org.springframework.data.convert.EntityInstantiators;
 import org.springframework.data.mongodb.core.convert.MongoConverters.BigIntegerToObjectIdConverter;
@@ -46,10 +46,8 @@ public abstract class AbstractMongoConverter implements MongoConverter, Initiali
 	 * 
 	 * @param conversionService
 	 */
-	@SuppressWarnings("deprecation")
 	public AbstractMongoConverter(GenericConversionService conversionService) {
-		this.conversionService = conversionService == null ? ConversionServiceFactory.createDefaultConversionService()
-				: conversionService;
+		this.conversionService = conversionService == null ? new DefaultConversionService() : conversionService;
 	}
 
 	/**
@@ -77,15 +75,13 @@ public abstract class AbstractMongoConverter implements MongoConverter, Initiali
 	 */
 	private void initializeConverters() {
 
-		if (!conversionService.canConvert(ObjectId.class, String.class)) {
-			conversionService.addConverter(ObjectIdToStringConverter.INSTANCE);
-		}
-		if (!conversionService.canConvert(String.class, ObjectId.class)) {
-			conversionService.addConverter(StringToObjectIdConverter.INSTANCE);
-		}
+		conversionService.addConverter(ObjectIdToStringConverter.INSTANCE);
+		conversionService.addConverter(StringToObjectIdConverter.INSTANCE);
+
 		if (!conversionService.canConvert(ObjectId.class, BigInteger.class)) {
 			conversionService.addConverter(ObjectIdToBigIntegerConverter.INSTANCE);
 		}
+
 		if (!conversionService.canConvert(BigInteger.class, ObjectId.class)) {
 			conversionService.addConverter(BigIntegerToObjectIdConverter.INSTANCE);
 		}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/CustomConversions.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,13 +17,15 @@ package org.springframework.data.mongodb.core.convert;
 
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.HashMap;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -35,17 +37,13 @@ import org.springframework.core.convert.converter.GenericConverter;
 import org.springframework.core.convert.converter.GenericConverter.ConvertiblePair;
 import org.springframework.core.convert.support.GenericConversionService;
 import org.springframework.data.convert.JodaTimeConverters;
+import org.springframework.data.convert.Jsr310Converters;
 import org.springframework.data.convert.ReadingConverter;
+import org.springframework.data.convert.ThreeTenBackPortConverters;
 import org.springframework.data.convert.WritingConverter;
 import org.springframework.data.mapping.model.SimpleTypeHolder;
-import org.springframework.data.mongodb.core.convert.MongoConverters.BigDecimalToStringConverter;
-import org.springframework.data.mongodb.core.convert.MongoConverters.BigIntegerToStringConverter;
-import org.springframework.data.mongodb.core.convert.MongoConverters.DBObjectToStringConverter;
-import org.springframework.data.mongodb.core.convert.MongoConverters.StringToBigDecimalConverter;
-import org.springframework.data.mongodb.core.convert.MongoConverters.StringToBigIntegerConverter;
-import org.springframework.data.mongodb.core.convert.MongoConverters.StringToURLConverter;
-import org.springframework.data.mongodb.core.convert.MongoConverters.URLToStringConverter;
 import org.springframework.data.mongodb.core.mapping.MongoSimpleTypes;
+import org.springframework.data.util.CacheValue;
 import org.springframework.util.Assert;
 
 /**
@@ -56,6 +54,8 @@ import org.springframework.util.Assert;
  * .
  * 
  * @author Oliver Gierke
+ * @author Thomas Darimont
+ * @author Christoph Strobl
  */
 public class CustomConversions {
 
@@ -67,10 +67,13 @@ public class CustomConversions {
 	private final Set<ConvertiblePair> writingPairs;
 	private final Set<Class<?>> customSimpleTypes;
 	private final SimpleTypeHolder simpleTypeHolder;
-	private final Map<Class<?>, HashMap<Class<?>, CacheValue>> cache;
 
 	private final List<Object> converters;
 
+	private final Map<ConvertiblePair, CacheValue<Class<?>>> customReadTargetTypes;
+	private final Map<ConvertiblePair, CacheValue<Class<?>>> customWriteTargetTypes;
+	private final Map<Class<?>, CacheValue<Class<?>>> rawWriteTargetTypes;
+
 	/**
 	 * Creates an empty {@link CustomConversions} object.
 	 */
@@ -90,24 +93,28 @@ public class CustomConversions {
 		this.readingPairs = new LinkedHashSet<ConvertiblePair>();
 		this.writingPairs = new LinkedHashSet<ConvertiblePair>();
 		this.customSimpleTypes = new HashSet<Class<?>>();
-		this.cache = new HashMap<Class<?>, HashMap<Class<?>, CacheValue>>();
+		this.customReadTargetTypes = new ConcurrentHashMap<ConvertiblePair, CacheValue<Class<?>>>();
+		this.customWriteTargetTypes = new ConcurrentHashMap<ConvertiblePair, CacheValue<Class<?>>>();
+		this.rawWriteTargetTypes = new ConcurrentHashMap<Class<?>, CacheValue<Class<?>>>();
 
-		this.converters = new ArrayList<Object>();
-		this.converters.addAll(converters);
-		this.converters.add(CustomToStringConverter.INSTANCE);
-		this.converters.add(BigDecimalToStringConverter.INSTANCE);
-		this.converters.add(StringToBigDecimalConverter.INSTANCE);
-		this.converters.add(BigIntegerToStringConverter.INSTANCE);
-		this.converters.add(StringToBigIntegerConverter.INSTANCE);
-		this.converters.add(URLToStringConverter.INSTANCE);
-		this.converters.add(StringToURLConverter.INSTANCE);
-		this.converters.add(DBObjectToStringConverter.INSTANCE);
-		this.converters.addAll(JodaTimeConverters.getConvertersToRegister());
+		List<Object> toRegister = new ArrayList<Object>();
 
-		for (Object c : this.converters) {
+		// Add user provided converters to make sure they can override the defaults
+		toRegister.addAll(converters);
+		toRegister.add(CustomToStringConverter.INSTANCE);
+		toRegister.addAll(MongoConverters.getConvertersToRegister());
+		toRegister.addAll(JodaTimeConverters.getConvertersToRegister());
+		toRegister.addAll(GeoConverters.getConvertersToRegister());
+		toRegister.addAll(Jsr310Converters.getConvertersToRegister());
+		toRegister.addAll(ThreeTenBackPortConverters.getConvertersToRegister());
+
+		for (Object c : toRegister) {
 			registerConversion(c);
 		}
 
+		Collections.reverse(toRegister);
+
+		this.converters = Collections.unmodifiableList(toRegister);
 		this.simpleTypeHolder = new SimpleTypeHolder(customSimpleTypes, MongoSimpleTypes.HOLDER);
 	}
 
@@ -159,14 +166,15 @@ public class CustomConversions {
 			}
 
 			if (!added) {
-				throw new IllegalArgumentException("Given set contains element that is neither Converter nor ConverterFactory!");
+				throw new IllegalArgumentException(
+						"Given set contains element that is neither Converter nor ConverterFactory!");
 			}
 		}
 	}
 
 	/**
-	 * Registers a conversion for the given converter. Inspects either generics or the {@link ConvertiblePair}s returned
-	 * by a {@link GenericConverter}.
+	 * Registers a conversion for the given converter. Inspects either generics of {@link Converter} and
+	 * {@link ConverterFactory} or the {@link ConvertiblePair}s returned by a {@link GenericConverter}.
 	 * 
 	 * @param converter
 	 */
@@ -181,6 +189,10 @@ public class CustomConversions {
 			for (ConvertiblePair pair : genericConverter.getConvertibleTypes()) {
 				register(new ConverterRegistration(pair, isReading, isWriting));
 			}
+		} else if (converter instanceof ConverterFactory) {
+
+			Class<?>[] arguments = GenericTypeResolver.resolveTypeArguments(converter.getClass(), ConverterFactory.class);
+			register(new ConverterRegistration(arguments[0], arguments[1], isReading, isWriting));
 		} else if (converter instanceof Converter) {
 			Class<?>[] arguments = GenericTypeResolver.resolveTypeArguments(converter.getClass(), Converter.class);
 			register(new ConverterRegistration(arguments[0], arguments[1], isReading, isWriting));
@@ -195,25 +207,25 @@ public class CustomConversions {
 	 * 
 	 * @param pair
 	 */
-	private void register(ConverterRegistration context) {
+	private void register(ConverterRegistration converterRegistration) {
 
-		ConvertiblePair pair = context.getConvertiblePair();
+		ConvertiblePair pair = converterRegistration.getConvertiblePair();
 
-		if (context.isReading()) {
+		if (converterRegistration.isReading()) {
 
 			readingPairs.add(pair);
 
-			if (LOG.isWarnEnabled() && !context.isSimpleSourceType()) {
+			if (LOG.isWarnEnabled() && !converterRegistration.isSimpleSourceType()) {
 				LOG.warn(String.format(READ_CONVERTER_NOT_SIMPLE, pair.getSourceType(), pair.getTargetType()));
 			}
 		}
 
-		if (context.isWriting()) {
+		if (converterRegistration.isWriting()) {
 
 			writingPairs.add(pair);
 			customSimpleTypes.add(pair.getSourceType());
 
-			if (LOG.isWarnEnabled() && !context.isSimpleTargetType()) {
+			if (LOG.isWarnEnabled() && !converterRegistration.isSimpleTargetType()) {
 				LOG.warn(String.format(WRITE_CONVERTER_NOT_SIMPLE, pair.getSourceType(), pair.getTargetType()));
 			}
 		}
@@ -223,84 +235,127 @@ public class CustomConversions {
 	 * Returns the target type to convert to in case we have a custom conversion registered to convert the given source
 	 * type into a Mongo native one.
 	 * 
-	 * @param source must not be {@literal null}
+	 * @param sourceType must not be {@literal null}
 	 * @return
 	 */
-	public Class<?> getCustomWriteTarget(Class<?> source) {
-		return getCustomWriteTarget(source, null);
+	public Class<?> getCustomWriteTarget(final Class<?> sourceType) {
+
+		return getOrCreateAndCache(sourceType, rawWriteTargetTypes, new Producer() {
+
+			@Override
+			public Class<?> get() {
+				return getCustomTarget(sourceType, null, writingPairs);
+			}
+		});
 	}
 
 	/**
-	 * Returns the target type we can write an onject of the given source type to. The returned type might be a subclass
-	 * oth the given expected type though. If {@code expectedTargetType} is {@literal null} we will simply return the
-	 * first target type matching or {@literal null} if no conversion can be found.
+	 * Returns the target type we can readTargetWriteLocl an inject of the given source type to. The returned type might
+	 * be a subclass of the given expected type though. If {@code expectedTargetType} is {@literal null} we will simply
+	 * return the first target type matching or {@literal null} if no conversion can be found.
 	 * 
-	 * @param source must not be {@literal null}
-	 * @param expectedTargetType
+	 * @param sourceType must not be {@literal null}
+	 * @param requestedTargetType
 	 * @return
 	 */
-	public Class<?> getCustomWriteTarget(Class<?> source, Class<?> expectedTargetType) {
+	public Class<?> getCustomWriteTarget(final Class<?> sourceType, final Class<?> requestedTargetType) {
 
-		Assert.notNull(source);
-		return getCustomTarget(source, expectedTargetType, writingPairs);
+		if (requestedTargetType == null) {
+			return getCustomWriteTarget(sourceType);
+		}
+
+		return getOrCreateAndCache(new ConvertiblePair(sourceType, requestedTargetType), customWriteTargetTypes,
+				new Producer() {
+
+					@Override
+					public Class<?> get() {
+						return getCustomTarget(sourceType, requestedTargetType, writingPairs);
+					}
+				});
 	}
 
 	/**
-	 * Returns whether we have a custom conversion registered to write into a Mongo native type. The returned type might
-	 * be a subclass oth the given expected type though.
+	 * Returns whether we have a custom conversion registered to readTargetWriteLocl into a Mongo native type. The
+	 * returned type might be a subclass of the given expected type though.
 	 * 
-	 * @param source must not be {@literal null}
+	 * @param sourceType must not be {@literal null}
 	 * @return
 	 */
-	public boolean hasCustomWriteTarget(Class<?> source) {
-		return hasCustomWriteTarget(source, null);
+	public boolean hasCustomWriteTarget(Class<?> sourceType) {
+		return hasCustomWriteTarget(sourceType, null);
 	}
 
 	/**
-	 * Returns whether we have a custom conversion registered to write an object of the given source type into an object
-	 * of the given Mongo native target type.
+	 * Returns whether we have a custom conversion registered to readTargetWriteLocl an object of the given source type
+	 * into an object of the given Mongo native target type.
 	 * 
-	 * @param source must not be {@literal null}.
-	 * @param expectedTargetType
+	 * @param sourceType must not be {@literal null}.
+	 * @param requestedTargetType
 	 * @return
 	 */
-	public boolean hasCustomWriteTarget(Class<?> source, Class<?> expectedTargetType) {
-		return getCustomWriteTarget(source, expectedTargetType) != null;
+	public boolean hasCustomWriteTarget(Class<?> sourceType, Class<?> requestedTargetType) {
+		return getCustomWriteTarget(sourceType, requestedTargetType) != null;
 	}
 
 	/**
-	 * Returns whether we have a custom conversion registered to read the given source into the given target type.
+	 * Returns whether we have a custom conversion registered to readTargetReadLock the given source into the given target
+	 * type.
 	 * 
-	 * @param source must not be {@literal null}
-	 * @param expectedTargetType must not be {@literal null}
+	 * @param sourceType must not be {@literal null}
+	 * @param requestedTargetType must not be {@literal null}
 	 * @return
 	 */
-	public boolean hasCustomReadTarget(Class<?> source, Class<?> expectedTargetType) {
-
-		Assert.notNull(source);
-		Assert.notNull(expectedTargetType);
-
-		return getCustomReadTarget(source, expectedTargetType) != null;
+	public boolean hasCustomReadTarget(Class<?> sourceType, Class<?> requestedTargetType) {
+		return getCustomReadTarget(sourceType, requestedTargetType) != null;
 	}
 
 	/**
-	 * Inspects the given {@link ConvertiblePair} for ones that have a source compatible type as source. Additionally
-	 * checks assignabilty of the target type if one is given.
+	 * Returns the actual target type for the given {@code sourceType} and {@code requestedTargetType}. Note that the
+	 * returned {@link Class} could be an assignable type to the given {@code requestedTargetType}.
 	 * 
-	 * @param source must not be {@literal null}
-	 * @param expectedTargetType
-	 * @param pairs must not be {@literal null}
+	 * @param sourceType must not be {@literal null}.
+	 * @param requestedTargetType can be {@literal null}.
 	 * @return
 	 */
-	private static Class<?> getCustomTarget(Class<?> source, Class<?> expectedTargetType, Iterable<ConvertiblePair> pairs) {
+	private Class<?> getCustomReadTarget(final Class<?> sourceType, final Class<?> requestedTargetType) {
 
-		Assert.notNull(source);
+		if (requestedTargetType == null) {
+			return null;
+		}
+
+		return getOrCreateAndCache(new ConvertiblePair(sourceType, requestedTargetType), customReadTargetTypes,
+				new Producer() {
+
+					@Override
+					public Class<?> get() {
+						return getCustomTarget(sourceType, requestedTargetType, readingPairs);
+					}
+				});
+	}
+
+	/**
+	 * Inspects the given {@link ConvertiblePair}s for ones that have a source compatible type as source. Additionally
+	 * checks assignability of the target type if one is given.
+	 * 
+	 * @param sourceType must not be {@literal null}.
+	 * @param requestedTargetType can be {@literal null}.
+	 * @param pairs must not be {@literal null}.
+	 * @return
+	 */
+	private static Class<?> getCustomTarget(Class<?> sourceType, Class<?> requestedTargetType,
+			Collection<ConvertiblePair> pairs) {
+
+		Assert.notNull(sourceType);
 		Assert.notNull(pairs);
 
+		if (requestedTargetType != null && pairs.contains(new ConvertiblePair(sourceType, requestedTargetType))) {
+			return requestedTargetType;
+		}
+
 		for (ConvertiblePair typePair : pairs) {
-			if (typePair.getSourceType().isAssignableFrom(source)) {
+			if (typePair.getSourceType().isAssignableFrom(sourceType)) {
 				Class<?> targetType = typePair.getTargetType();
-				if (expectedTargetType == null || targetType.isAssignableFrom(expectedTargetType)) {
+				if (requestedTargetType == null || targetType.isAssignableFrom(requestedTargetType)) {
 					return targetType;
 				}
 			}
@@ -309,27 +364,32 @@ public class CustomConversions {
 		return null;
 	}
 
-	private Class<?> getCustomReadTarget(Class<?> source, Class<?> expectedTargetType) {
+	/**
+	 * Will try to find a value for the given key in the given cache or produce one using the given {@link Producer} and
+	 * store it in the cache.
+	 * 
+	 * @param key the key to lookup a potentially existing value, must not be {@literal null}.
+	 * @param cache the cache to find the value in, must not be {@literal null}.
+	 * @param producer the {@link Producer} to create values to cache, must not be {@literal null}.
+	 * @return
+	 */
+	private static <T> Class<?> getOrCreateAndCache(T key, Map<T, CacheValue<Class<?>>> cache, Producer producer) {
 
-		Class<?> type = expectedTargetType == null ? PlaceholderType.class : expectedTargetType;
+		CacheValue<Class<?>> cacheValue = cache.get(key);
 
-		Map<Class<?>, CacheValue> map;
-		CacheValue toReturn;
-
-		if ((map = cache.get(source)) == null || (toReturn = map.get(type)) == null) {
-
-			Class<?> target = getCustomTarget(source, type, readingPairs);
-
-			if (cache.get(source) == null) {
-				cache.put(source, new HashMap<Class<?>, CacheValue>());
-			}
-
-			Map<Class<?>, CacheValue> value = cache.get(source);
-			toReturn = target == null ? CacheValue.NULL : new CacheValue(target);
-			value.put(type, toReturn);
+		if (cacheValue != null) {
+			return cacheValue.getValue();
 		}
 
-		return toReturn.clazz;
+		Class<?> type = producer.get();
+		cache.put(key, CacheValue.<Class<?>> ofNullable(type));
+
+		return type;
+	}
+
+	private interface Producer {
+
+		Class<?> get();
 	}
 
 	@WritingConverter
@@ -337,40 +397,24 @@ public class CustomConversions {
 
 		INSTANCE;
 
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.GenericConverter#getConvertibleTypes()
+		 */
 		public Set<ConvertiblePair> getConvertibleTypes() {
+
 			ConvertiblePair localeToString = new ConvertiblePair(Locale.class, String.class);
 			ConvertiblePair booleanToString = new ConvertiblePair(Character.class, String.class);
+
 			return new HashSet<ConvertiblePair>(Arrays.asList(localeToString, booleanToString));
 		}
 
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.GenericConverter#convert(java.lang.Object, org.springframework.core.convert.TypeDescriptor, org.springframework.core.convert.TypeDescriptor)
+		 */
 		public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
 			return source.toString();
 		}
 	}
-
-	/**
-	 * Placeholder type to allow registering not-found values in the converter cache.
-	 * 
-	 * @author Patryk Wasik
-	 * @author Oliver Gierke
-	 */
-	private static class PlaceholderType {
-
-	}
-
-	/**
-	 * Wrapper to safely store {@literal null} values in the type cache.
-	 * 
-	 * @author Patryk Wasik
-	 * @author Oliver Gierke
-	 */
-	private static class CacheValue {
-
-		public static final CacheValue NULL = new CacheValue(null);
-		private final Class<?> clazz;
-
-		public CacheValue(Class<?> clazz) {
-			this.clazz = clazz;
-		}
-	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DBObjectAccessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,7 +34,7 @@ import com.mongodb.DBObject;
  */
 class DBObjectAccessor {
 
-	private final DBObject dbObject;
+	private final BasicDBObject dbObject;
 
 	/**
 	 * Creates a new {@link DBObjectAccessor} for the given {@link DBObject}.
@@ -46,7 +46,7 @@ class DBObjectAccessor {
 		Assert.notNull(dbObject, "DBObject must not be null!");
 		Assert.isInstanceOf(BasicDBObject.class, dbObject, "Given DBObject must be a BasicDBObject!");
 
-		this.dbObject = dbObject;
+		this.dbObject = (BasicDBObject) dbObject;
 	}
 
 	/**
@@ -62,6 +62,11 @@ class DBObjectAccessor {
 		Assert.notNull(prop, "MongoPersistentProperty must not be null!");
 		String fieldName = prop.getFieldName();
 
+		if (!fieldName.contains(".")) {
+			dbObject.put(fieldName, value);
+			return;
+		}
+
 		Iterator<String> parts = Arrays.asList(fieldName.split("\\.")).iterator();
 		DBObject dbObject = this.dbObject;
 
@@ -70,9 +75,7 @@ class DBObjectAccessor {
 			String part = parts.next();
 
 			if (parts.hasNext()) {
-				BasicDBObject nestedDbObject = new BasicDBObject();
-				dbObject.put(part, nestedDbObject);
-				dbObject = nestedDbObject;
+				dbObject = getOrCreateNestedDbObject(part, dbObject);
 			} else {
 				dbObject.put(part, value);
 			}
@@ -87,12 +90,16 @@ class DBObjectAccessor {
 	 * @param property must not be {@literal null}.
 	 * @return
 	 */
-	@SuppressWarnings("unchecked")
 	public Object get(MongoPersistentProperty property) {
 
 		String fieldName = property.getFieldName();
+
+		if (!fieldName.contains(".")) {
+			return this.dbObject.get(fieldName);
+		}
+
 		Iterator<String> parts = Arrays.asList(fieldName.split("\\.")).iterator();
-		Map<Object, Object> source = this.dbObject.toMap();
+		Map<String, Object> source = this.dbObject;
 		Object result = null;
 
 		while (source != null && parts.hasNext()) {
@@ -107,17 +114,45 @@ class DBObjectAccessor {
 		return result;
 	}
 
+	/**
+	 * Returns the given source object as map, i.e. {@link BasicDBObject}s and maps as is or {@literal null} otherwise.
+	 * 
+	 * @param source can be {@literal null}.
+	 * @return
+	 */
 	@SuppressWarnings("unchecked")
-	private Map<Object, Object> getAsMap(Object source) {
+	private static Map<String, Object> getAsMap(Object source) {
 
 		if (source instanceof BasicDBObject) {
-			return ((DBObject) source).toMap();
+			return (BasicDBObject) source;
 		}
 
 		if (source instanceof Map) {
-			return (Map<Object, Object>) source;
+			return (Map<String, Object>) source;
 		}
 
 		return null;
 	}
+
+	/**
+	 * Returns the {@link DBObject} which either already exists in the given source under the given key, or creates a new
+	 * nested one, registers it with the source and returns it.
+	 * 
+	 * @param key must not be {@literal null} or empty.
+	 * @param source must not be {@literal null}.
+	 * @return
+	 */
+	private static DBObject getOrCreateNestedDbObject(String key, DBObject source) {
+
+		Object existing = source.get(key);
+
+		if (existing instanceof BasicDBObject) {
+			return (BasicDBObject) existing;
+		}
+
+		DBObject nested = new BasicDBObject();
+		source.put(key, nested);
+
+		return nested;
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DBObjectPropertyAccessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 the original author or authors.
+ * Copyright 2012-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,18 +31,30 @@ import com.mongodb.DBObject;
  */
 class DBObjectPropertyAccessor extends MapAccessor {
 
-	static MapAccessor INSTANCE = new DBObjectPropertyAccessor();
+	static final MapAccessor INSTANCE = new DBObjectPropertyAccessor();
 
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.context.expression.MapAccessor#getSpecificTargetClasses()
+	 */
 	@Override
 	public Class<?>[] getSpecificTargetClasses() {
 		return new Class[] { DBObject.class };
 	}
 
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.context.expression.MapAccessor#canRead(org.springframework.expression.EvaluationContext, java.lang.Object, java.lang.String)
+	 */
 	@Override
 	public boolean canRead(EvaluationContext context, Object target, String name) {
 		return true;
 	}
 
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.context.expression.MapAccessor#read(org.springframework.expression.EvaluationContext, java.lang.Object, java.lang.String)
+	 */
 	@Override
 	@SuppressWarnings("unchecked")
 	public TypedValue read(EvaluationContext context, Object target, String name) {
@@ -52,4 +64,4 @@ class DBObjectPropertyAccessor extends MapAccessor {
 		Object value = source.get(name);
 		return value == null ? TypedValue.NULL : new TypedValue(value);
 	}
-}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DbRefProxyHandler.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+
+import com.mongodb.DBRef;
+
+/**
+ * @author Oliver Gierke
+ */
+public interface DbRefProxyHandler {
+
+	Object populateId(MongoPersistentProperty property, DBRef source, Object proxy);
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DbRefResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,21 +18,31 @@ package org.springframework.data.mongodb.core.convert;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 
+import com.mongodb.DBObject;
 import com.mongodb.DBRef;
 
 /**
  * Used to resolve associations annotated with {@link org.springframework.data.mongodb.core.mapping.DBRef}.
  * 
  * @author Thomas Darimont
+ * @author Oliver Gierke
+ * @author Christoph Strobl
+ * @since 1.4
  */
 public interface DbRefResolver {
 
 	/**
+	 * Resolves the given {@link DBRef} into an object of the given {@link MongoPersistentProperty}'s type. The method
+	 * might return a proxy object for the {@link DBRef} or resolve it immediately. In both cases the
+	 * {@link DbRefResolverCallback} will be used to obtain the actual backing object.
+	 * 
 	 * @param property will never be {@literal null}.
+	 * @param dbref the {@link DBRef} to resolve.
 	 * @param callback will never be {@literal null}.
 	 * @return
 	 */
-	Object resolveDbRef(MongoPersistentProperty property, DbRefResolverCallback callback);
+	Object resolveDbRef(MongoPersistentProperty property, DBRef dbref, DbRefResolverCallback callback,
+			DbRefProxyHandler proxyHandler);
 
 	/**
 	 * Creates a {@link DBRef} instance for the given {@link org.springframework.data.mongodb.core.mapping.DBRef}
@@ -45,4 +55,13 @@ public interface DbRefResolver {
 	 */
 	DBRef createDbRef(org.springframework.data.mongodb.core.mapping.DBRef annotation, MongoPersistentEntity<?> entity,
 			Object id);
+
+	/**
+	 * Actually loads the {@link DBRef} from the datasource.
+	 * 
+	 * @param dbRef must not be {@literal null}.
+	 * @return
+	 * @since 1.7
+	 */
+	DBObject fetch(DBRef dbRef);
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultDbRefProxyHandler.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import org.springframework.data.mapping.PersistentPropertyAccessor;
+import org.springframework.data.mapping.context.MappingContext;
+import org.springframework.data.mapping.model.DefaultSpELExpressionEvaluator;
+import org.springframework.data.mapping.model.SpELContext;
+import org.springframework.data.mapping.model.SpELExpressionEvaluator;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
+import com.mongodb.DBRef;
+
+/**
+ * @author Oliver Gierke
+ */
+class DefaultDbRefProxyHandler implements DbRefProxyHandler {
+
+	private final SpELContext spELContext;
+	private final MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext;
+	private final ValueResolver resolver;
+
+	/**
+	 * @param spELContext must not be {@literal null}.
+	 * @param conversionService must not be {@literal null}.
+	 * @param mappingContext must not be {@literal null}.
+	 */
+	public DefaultDbRefProxyHandler(SpELContext spELContext,
+			MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext, ValueResolver resolver) {
+
+		this.spELContext = spELContext;
+		this.mappingContext = mappingContext;
+		this.resolver = resolver;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.DbRefProxyHandler#populateId(com.mongodb.DBRef, java.lang.Object)
+	 */
+	@Override
+	public Object populateId(MongoPersistentProperty property, DBRef source, Object proxy) {
+
+		if (source == null) {
+			return proxy;
+		}
+
+		MongoPersistentEntity<?> entity = mappingContext.getPersistentEntity(property);
+		MongoPersistentProperty idProperty = entity.getIdProperty();
+
+		if (idProperty.usePropertyAccess()) {
+			return proxy;
+		}
+
+		SpELExpressionEvaluator evaluator = new DefaultSpELExpressionEvaluator(proxy, spELContext);
+		PersistentPropertyAccessor accessor = entity.getPropertyAccessor(proxy);
+
+		DBObject object = new BasicDBObject(idProperty.getFieldName(), source.getId());
+		ObjectPath objectPath = ObjectPath.ROOT.push(proxy, entity, null);
+		accessor.setProperty(idProperty, resolver.getValueInternal(idProperty, object, evaluator, objectPath));
+
+		return proxy;
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultDbRefResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
  */
 package org.springframework.data.mongodb.core.convert;
 
+import static org.springframework.util.ReflectionUtils.*;
+
 import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
@@ -23,26 +25,22 @@ import java.lang.reflect.Method;
 
 import org.aopalliance.intercept.MethodInterceptor;
 import org.aopalliance.intercept.MethodInvocation;
-import org.objenesis.Objenesis;
-import org.objenesis.ObjenesisStd;
 import org.springframework.aop.framework.ProxyFactory;
 import org.springframework.cglib.proxy.Callback;
 import org.springframework.cglib.proxy.Enhancer;
 import org.springframework.cglib.proxy.Factory;
 import org.springframework.cglib.proxy.MethodProxy;
-import org.springframework.core.SpringVersion;
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
 import org.springframework.data.mongodb.LazyLoadingException;
 import org.springframework.data.mongodb.MongoDbFactory;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+import org.springframework.objenesis.ObjenesisStd;
 import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
 import org.springframework.util.ReflectionUtils;
-import org.springframework.util.StringUtils;
 
-import com.mongodb.DB;
+import com.mongodb.DBObject;
 import com.mongodb.DBRef;
 
 /**
@@ -51,14 +49,14 @@ import com.mongodb.DBRef;
  * 
  * @author Thomas Darimont
  * @author Oliver Gierke
+ * @author Christoph Strobl
+ * @since 1.4
  */
 public class DefaultDbRefResolver implements DbRefResolver {
 
-	private static final boolean IS_SPRING_4_OR_BETTER = SpringVersion.getVersion().startsWith("4");
-	private static final boolean OBJENESIS_PRESENT = ClassUtils.isPresent("org.objenesis.Objenesis", null);
-
 	private final MongoDbFactory mongoDbFactory;
 	private final PersistenceExceptionTranslator exceptionTranslator;
+	private final ObjenesisStd objenesis;
 
 	/**
 	 * Creates a new {@link DefaultDbRefResolver} with the given {@link MongoDbFactory}.
@@ -71,6 +69,7 @@ public class DefaultDbRefResolver implements DbRefResolver {
 
 		this.mongoDbFactory = mongoDbFactory;
 		this.exceptionTranslator = mongoDbFactory.getExceptionTranslator();
+		this.objenesis = new ObjenesisStd(true);
 	}
 
 	/*
@@ -78,13 +77,14 @@ public class DefaultDbRefResolver implements DbRefResolver {
 	 * @see org.springframework.data.mongodb.core.convert.DbRefResolver#resolveDbRef(org.springframework.data.mongodb.core.mapping.MongoPersistentProperty, org.springframework.data.mongodb.core.convert.DbRefResolverCallback)
 	 */
 	@Override
-	public Object resolveDbRef(MongoPersistentProperty property, DbRefResolverCallback callback) {
+	public Object resolveDbRef(MongoPersistentProperty property, DBRef dbref, DbRefResolverCallback callback,
+			DbRefProxyHandler handler) {
 
 		Assert.notNull(property, "Property must not be null!");
 		Assert.notNull(callback, "Callback must not be null!");
 
 		if (isLazyDbRef(property)) {
-			return createLazyLoadingProxy(property, callback);
+			return createLazyLoadingProxy(property, dbref, callback, handler);
 		}
 
 		return callback.resolve(property);
@@ -97,11 +97,16 @@ public class DefaultDbRefResolver implements DbRefResolver {
 	@Override
 	public DBRef createDbRef(org.springframework.data.mongodb.core.mapping.DBRef annotation,
 			MongoPersistentEntity<?> entity, Object id) {
+		return new DBRef(entity.getCollection(), id);
+	}
 
-		DB db = mongoDbFactory.getDb();
-		db = annotation != null && StringUtils.hasText(annotation.db()) ? mongoDbFactory.getDb(annotation.db()) : db;
-
-		return new DBRef(db, entity.getCollection(), id);
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.DbRefResolver#fetch(com.mongodb.DBRef)
+	 */
+	@Override
+	public DBObject fetch(DBRef dbRef) {
+		return ReflectiveDBRefResolver.fetch(mongoDbFactory, dbRef);
 	}
 
 	/**
@@ -109,39 +114,57 @@ public class DefaultDbRefResolver implements DbRefResolver {
 	 * eventually resolve the value of the property.
 	 * 
 	 * @param property must not be {@literal null}.
+	 * @param dbref can be {@literal null}.
 	 * @param callback must not be {@literal null}.
 	 * @return
 	 */
-	private Object createLazyLoadingProxy(MongoPersistentProperty property, DbRefResolverCallback callback) {
+	private Object createLazyLoadingProxy(MongoPersistentProperty property, DBRef dbref, DbRefResolverCallback callback,
+			DbRefProxyHandler handler) {
+
+		Class<?> propertyType = property.getType();
+		LazyLoadingInterceptor interceptor = new LazyLoadingInterceptor(property, dbref, exceptionTranslator, callback);
+
+		if (!propertyType.isInterface()) {
+
+			Factory factory = (Factory) objenesis.newInstance(getEnhancedTypeFor(propertyType));
+			factory.setCallbacks(new Callback[] { interceptor });
+
+			return handler.populateId(property, dbref, factory);
+		}
 
 		ProxyFactory proxyFactory = new ProxyFactory();
-		Class<?> propertyType = property.getType();
 
 		for (Class<?> type : propertyType.getInterfaces()) {
 			proxyFactory.addInterface(type);
 		}
 
-		LazyLoadingInterceptor interceptor = new LazyLoadingInterceptor(property, exceptionTranslator, callback);
+		proxyFactory.addInterface(LazyLoadingProxy.class);
+		proxyFactory.addInterface(propertyType);
+		proxyFactory.addAdvice(interceptor);
 
-		if (propertyType.isInterface()) {
-			proxyFactory.addInterface(propertyType);
-			proxyFactory.addAdvice(interceptor);
-			return proxyFactory.getProxy();
-		}
-
-		proxyFactory.setProxyTargetClass(true);
-		proxyFactory.setTargetClass(propertyType);
-
-		if (IS_SPRING_4_OR_BETTER || !OBJENESIS_PRESENT) {
-			proxyFactory.addAdvice(interceptor);
-			return proxyFactory.getProxy();
-		}
-
-		return ObjenesisProxyEnhancer.enhanceAndGet(proxyFactory, propertyType, interceptor);
+		return handler.populateId(property, dbref, proxyFactory.getProxy());
 	}
 
 	/**
-	 * @param property
+	 * Returns the CGLib enhanced type for the given source type.
+	 * 
+	 * @param type
+	 * @return
+	 */
+	private Class<?> getEnhancedTypeFor(Class<?> type) {
+
+		Enhancer enhancer = new Enhancer();
+		enhancer.setSuperclass(type);
+		enhancer.setCallbackType(org.springframework.cglib.proxy.MethodInterceptor.class);
+		enhancer.setInterfaces(new Class[] { LazyLoadingProxy.class });
+
+		return enhancer.createClass();
+	}
+
+	/**
+	 * Returns whether the property shall be resolved lazily.
+	 * 
+	 * @param property must not be {@literal null}.
 	 * @return
 	 */
 	private boolean isLazyDbRef(MongoPersistentProperty property) {
@@ -154,31 +177,48 @@ public class DefaultDbRefResolver implements DbRefResolver {
 	 * guaranteed to be performed only once.
 	 * 
 	 * @author Thomas Darimont
+	 * @author Oliver Gierke
+	 * @author Christoph Strobl
 	 */
 	static class LazyLoadingInterceptor implements MethodInterceptor, org.springframework.cglib.proxy.MethodInterceptor,
 			Serializable {
 
+		private static final Method INITIALIZE_METHOD, TO_DBREF_METHOD, FINALIZE_METHOD;
+
 		private final DbRefResolverCallback callback;
 		private final MongoPersistentProperty property;
 		private final PersistenceExceptionTranslator exceptionTranslator;
 
 		private volatile boolean resolved;
 		private Object result;
+		private DBRef dbref;
+
+		static {
+			try {
+				INITIALIZE_METHOD = LazyLoadingProxy.class.getMethod("getTarget");
+				TO_DBREF_METHOD = LazyLoadingProxy.class.getMethod("toDBRef");
+				FINALIZE_METHOD = Object.class.getDeclaredMethod("finalize");
+			} catch (Exception e) {
+				throw new RuntimeException(e);
+			}
+		}
 
 		/**
 		 * Creates a new {@link LazyLoadingInterceptor} for the given {@link MongoPersistentProperty},
 		 * {@link PersistenceExceptionTranslator} and {@link DbRefResolverCallback}.
 		 * 
 		 * @param property must not be {@literal null}.
+		 * @param dbref can be {@literal null}.
 		 * @param callback must not be {@literal null}.
 		 */
-		public LazyLoadingInterceptor(MongoPersistentProperty property, PersistenceExceptionTranslator exceptionTranslator,
-				DbRefResolverCallback callback) {
+		public LazyLoadingInterceptor(MongoPersistentProperty property, DBRef dbref,
+				PersistenceExceptionTranslator exceptionTranslator, DbRefResolverCallback callback) {
 
 			Assert.notNull(property, "Property must not be null!");
 			Assert.notNull(exceptionTranslator, "Exception translator must not be null!");
 			Assert.notNull(callback, "Callback must not be null!");
 
+			this.dbref = dbref;
 			this.callback = callback;
 			this.exceptionTranslator = exceptionTranslator;
 			this.property = property;
@@ -199,9 +239,100 @@ public class DefaultDbRefResolver implements DbRefResolver {
 		 */
 		@Override
 		public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
-			return ReflectionUtils.isObjectMethod(method) ? method.invoke(obj, args) : method.invoke(ensureResolved(), args);
+
+			if (INITIALIZE_METHOD.equals(method)) {
+				return ensureResolved();
+			}
+
+			if (TO_DBREF_METHOD.equals(method)) {
+				return this.dbref;
+			}
+
+			if (isObjectMethod(method) && Object.class.equals(method.getDeclaringClass())) {
+
+				if (ReflectionUtils.isToStringMethod(method)) {
+					return proxyToString(proxy);
+				}
+
+				if (ReflectionUtils.isEqualsMethod(method)) {
+					return proxyEquals(proxy, args[0]);
+				}
+
+				if (ReflectionUtils.isHashCodeMethod(method)) {
+					return proxyHashCode(proxy);
+				}
+
+				// DATAMONGO-1076 - finalize methods should not trigger proxy initialization
+				if (FINALIZE_METHOD.equals(method)) {
+					return null;
+				}
+			}
+
+			Object target = ensureResolved();
+
+			if (target == null) {
+				return null;
+			}
+
+			return method.invoke(target, args);
 		}
 
+		/**
+		 * Returns a to string representation for the given {@code proxy}.
+		 * 
+		 * @param proxy
+		 * @return
+		 */
+		private String proxyToString(Object proxy) {
+
+			StringBuilder description = new StringBuilder();
+			if (dbref != null) {
+				description.append(dbref.getCollectionName());
+				description.append(":");
+				description.append(dbref.getId());
+			} else {
+				description.append(System.identityHashCode(proxy));
+			}
+			description.append("$").append(LazyLoadingProxy.class.getSimpleName());
+
+			return description.toString();
+		}
+
+		/**
+		 * Returns the hashcode for the given {@code proxy}.
+		 * 
+		 * @param proxy
+		 * @return
+		 */
+		private int proxyHashCode(Object proxy) {
+			return proxyToString(proxy).hashCode();
+		}
+
+		/**
+		 * Performs an equality check for the given {@code proxy}.
+		 * 
+		 * @param proxy
+		 * @param that
+		 * @return
+		 */
+		private boolean proxyEquals(Object proxy, Object that) {
+
+			if (!(that instanceof LazyLoadingProxy)) {
+				return false;
+			}
+
+			if (that == proxy) {
+				return true;
+			}
+
+			return proxyToString(proxy).equals(that.toString());
+		}
+
+		/**
+		 * Will trigger the resolution if the proxy is not resolved already or return a previously resolved result.
+		 * 
+		 * @return
+		 */
 		private Object ensureResolved() {
 
 			if (!resolved) {
@@ -212,16 +343,28 @@ public class DefaultDbRefResolver implements DbRefResolver {
 			return this.result;
 		}
 
+		/**
+		 * Callback method for serialization.
+		 * 
+		 * @param out
+		 * @throws IOException
+		 */
 		private void writeObject(ObjectOutputStream out) throws IOException {
 
 			ensureResolved();
 			out.writeObject(this.result);
 		}
 
+		/**
+		 * Callback method for deserialization.
+		 * 
+		 * @param in
+		 * @throws IOException
+		 */
 		private void readObject(ObjectInputStream in) throws IOException {
 
 			try {
-				this.resolved = true; // Object is guaranteed to be resolved after serializations
+				this.resolved = true;
 				this.result = in.readObject();
 			} catch (ClassNotFoundException e) {
 				throw new LazyLoadingException("Could not deserialize result", e);
@@ -229,6 +372,8 @@ public class DefaultDbRefResolver implements DbRefResolver {
 		}
 
 		/**
+		 * Resolves the proxy into its backing object.
+		 * 
 		 * @return
 		 */
 		private synchronized Object resolve() {
@@ -248,35 +393,5 @@ public class DefaultDbRefResolver implements DbRefResolver {
 
 			return result;
 		}
-
-		public boolean isResolved() {
-			return resolved;
-		}
-
-		public Object getResult() {
-			return result;
-		}
-	}
-
-	/**
-	 * Static class to accomodate optional dependency on Objenesis.
-	 * 
-	 * @author Oliver Gierke
-	 */
-	private static class ObjenesisProxyEnhancer {
-
-		private static final Objenesis OBJENESIS = new ObjenesisStd(true);
-
-		public static Object enhanceAndGet(ProxyFactory proxyFactory, Class<?> type,
-				org.springframework.cglib.proxy.MethodInterceptor interceptor) {
-
-			Enhancer enhancer = new Enhancer();
-			enhancer.setSuperclass(type);
-			enhancer.setCallbackType(org.springframework.cglib.proxy.MethodInterceptor.class);
-
-			Factory factory = (Factory) OBJENESIS.newInstance(enhancer.createClass());
-			factory.setCallbacks(new Callback[] { interceptor });
-			return factory;
-		}
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultDbRefResolverCallback.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import org.springframework.data.mapping.model.SpELExpressionEvaluator;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+
+import com.mongodb.DBObject;
+
+/**
+ * Default implementation of {@link DbRefResolverCallback}.
+ * 
+ * @author Oliver Gierke
+ */
+class DefaultDbRefResolverCallback implements DbRefResolverCallback {
+
+	private final DBObject surroundingObject;
+	private final ObjectPath path;
+	private final ValueResolver resolver;
+	private final SpELExpressionEvaluator evaluator;
+
+	/**
+	 * Creates a new {@link DefaultDbRefResolverCallback} using the given {@link DBObject}, {@link ObjectPath},
+	 * {@link ValueResolver} and {@link SpELExpressionEvaluator}.
+	 * 
+	 * @param surroundingObject must not be {@literal null}.
+	 * @param path must not be {@literal null}.
+	 * @param evaluator must not be {@literal null}.
+	 * @param resolver must not be {@literal null}.
+	 */
+	public DefaultDbRefResolverCallback(DBObject surroundingObject, ObjectPath path, SpELExpressionEvaluator evaluator,
+			ValueResolver resolver) {
+
+		this.surroundingObject = surroundingObject;
+		this.path = path;
+		this.resolver = resolver;
+		this.evaluator = evaluator;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.DbRefResolverCallback#resolve(org.springframework.data.mongodb.core.mapping.MongoPersistentProperty)
+	 */
+	@Override
+	public Object resolve(MongoPersistentProperty property) {
+		return resolver.getValueInternal(property, surroundingObject, evaluator, path);
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultMongoTypeMapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,9 +45,9 @@ import com.mongodb.DBObject;
 public class DefaultMongoTypeMapper extends DefaultTypeMapper<DBObject> implements MongoTypeMapper {
 
 	public static final String DEFAULT_TYPE_KEY = "_class";
-	@SuppressWarnings("rawtypes")//
+	@SuppressWarnings("rawtypes") //
 	private static final TypeInformation<List> LIST_TYPE_INFO = ClassTypeInformation.from(List.class);
-	@SuppressWarnings("rawtypes")//
+	@SuppressWarnings("rawtypes") //
 	private static final TypeInformation<Map> MAP_TYPE_INFO = ClassTypeInformation.from(Map.class);
 
 	private final TypeAliasAccessor<DBObject> accessor;
@@ -58,12 +58,12 @@ public class DefaultMongoTypeMapper extends DefaultTypeMapper<DBObject> implemen
 	}
 
 	public DefaultMongoTypeMapper(String typeKey) {
-		this(typeKey, Arrays.asList(SimpleTypeInformationMapper.INSTANCE));
+		this(typeKey, Arrays.asList(new SimpleTypeInformationMapper()));
 	}
 
 	public DefaultMongoTypeMapper(String typeKey, MappingContext<? extends PersistentEntity<?, ?>, ?> mappingContext) {
-		this(typeKey, new DBObjectTypeAliasAccessor(typeKey), mappingContext, Arrays
-				.asList(SimpleTypeInformationMapper.INSTANCE));
+		this(typeKey, new DBObjectTypeAliasAccessor(typeKey), mappingContext,
+				Arrays.asList(new SimpleTypeInformationMapper()));
 	}
 
 	public DefaultMongoTypeMapper(String typeKey, List<? extends TypeInformationMapper> mappers) {
@@ -71,7 +71,8 @@ public class DefaultMongoTypeMapper extends DefaultTypeMapper<DBObject> implemen
 	}
 
 	private DefaultMongoTypeMapper(String typeKey, TypeAliasAccessor<DBObject> accessor,
-			MappingContext<? extends PersistentEntity<?, ?>, ?> mappingContext, List<? extends TypeInformationMapper> mappers) {
+			MappingContext<? extends PersistentEntity<?, ?>, ?> mappingContext,
+			List<? extends TypeInformationMapper> mappers) {
 
 		super(accessor, mappingContext, mappers);
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/GeoConverters.java

@@ -0,0 +1,848 @@
+/*
+ * Copyright 2014-2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.data.convert.ReadingConverter;
+import org.springframework.data.convert.WritingConverter;
+import org.springframework.data.geo.Box;
+import org.springframework.data.geo.Circle;
+import org.springframework.data.geo.Distance;
+import org.springframework.data.geo.Metrics;
+import org.springframework.data.geo.Point;
+import org.springframework.data.geo.Polygon;
+import org.springframework.data.geo.Shape;
+import org.springframework.data.mongodb.core.geo.GeoJson;
+import org.springframework.data.mongodb.core.geo.GeoJsonGeometryCollection;
+import org.springframework.data.mongodb.core.geo.GeoJsonLineString;
+import org.springframework.data.mongodb.core.geo.GeoJsonMultiLineString;
+import org.springframework.data.mongodb.core.geo.GeoJsonMultiPoint;
+import org.springframework.data.mongodb.core.geo.GeoJsonMultiPolygon;
+import org.springframework.data.mongodb.core.geo.GeoJsonPoint;
+import org.springframework.data.mongodb.core.geo.GeoJsonPolygon;
+import org.springframework.data.mongodb.core.geo.Sphere;
+import org.springframework.data.mongodb.core.query.GeoCommand;
+import org.springframework.util.Assert;
+import org.springframework.util.ObjectUtils;
+
+import com.mongodb.BasicDBList;
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
+
+/**
+ * Wrapper class to contain useful geo structure converters for the usage with Mongo.
+ * 
+ * @author Thomas Darimont
+ * @author Oliver Gierke
+ * @author Christoph Strobl
+ * @since 1.5
+ */
+abstract class GeoConverters {
+
+	/**
+	 * Private constructor to prevent instantiation.
+	 */
+	private GeoConverters() {}
+
+	/**
+	 * Returns the geo converters to be registered.
+	 * 
+	 * @return
+	 */
+	@SuppressWarnings("unchecked")
+	public static Collection<? extends Object> getConvertersToRegister() {
+		return Arrays.asList( //
+				BoxToDbObjectConverter.INSTANCE //
+				, PolygonToDbObjectConverter.INSTANCE //
+				, CircleToDbObjectConverter.INSTANCE //
+				, SphereToDbObjectConverter.INSTANCE //
+				, DbObjectToBoxConverter.INSTANCE //
+				, DbObjectToPolygonConverter.INSTANCE //
+				, DbObjectToCircleConverter.INSTANCE //
+				, DbObjectToSphereConverter.INSTANCE //
+				, DbObjectToPointConverter.INSTANCE //
+				, PointToDbObjectConverter.INSTANCE //
+				, GeoCommandToDbObjectConverter.INSTANCE //
+				, GeoJsonToDbObjectConverter.INSTANCE //
+				, GeoJsonPointToDbObjectConverter.INSTANCE //
+				, GeoJsonPolygonToDbObjectConverter.INSTANCE //
+				, DbObjectToGeoJsonPointConverter.INSTANCE //
+				, DbObjectToGeoJsonPolygonConverter.INSTANCE //
+				, DbObjectToGeoJsonLineStringConverter.INSTANCE //
+				, DbObjectToGeoJsonMultiLineStringConverter.INSTANCE //
+				, DbObjectToGeoJsonMultiPointConverter.INSTANCE //
+				, DbObjectToGeoJsonMultiPolygonConverter.INSTANCE //
+				, DbObjectToGeoJsonGeometryCollectionConverter.INSTANCE);
+	}
+
+	/**
+	 * Converts a {@link List} of {@link Double}s into a {@link Point}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	@ReadingConverter
+	static enum DbObjectToPointConverter implements Converter<DBObject, Point> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public Point convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(source.keySet().size() == 2, "Source must contain 2 elements");
+
+			return new Point((Double) source.get("x"), (Double) source.get("y"));
+		}
+	}
+
+	/**
+	 * Converts a {@link Point} into a {@link List} of {@link Double}s.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	static enum PointToDbObjectConverter implements Converter<Point, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(Point source) {
+			return source == null ? null : new BasicDBObject("x", source.getX()).append("y", source.getY());
+		}
+	}
+
+	/**
+	 * Converts a {@link Box} into a {@link BasicDBList}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	@WritingConverter
+	static enum BoxToDbObjectConverter implements Converter<Box, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(Box source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			BasicDBObject result = new BasicDBObject();
+			result.put("first", PointToDbObjectConverter.INSTANCE.convert(source.getFirst()));
+			result.put("second", PointToDbObjectConverter.INSTANCE.convert(source.getSecond()));
+			return result;
+		}
+	}
+
+	/**
+	 * Converts a {@link BasicDBList} into a {@link Box}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	@ReadingConverter
+	static enum DbObjectToBoxConverter implements Converter<DBObject, Box> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public Box convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Point first = DbObjectToPointConverter.INSTANCE.convert((DBObject) source.get("first"));
+			Point second = DbObjectToPointConverter.INSTANCE.convert((DBObject) source.get("second"));
+
+			return new Box(first, second);
+		}
+	}
+
+	/**
+	 * Converts a {@link Circle} into a {@link BasicDBList}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	static enum CircleToDbObjectConverter implements Converter<Circle, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(Circle source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			DBObject result = new BasicDBObject();
+			result.put("center", PointToDbObjectConverter.INSTANCE.convert(source.getCenter()));
+			result.put("radius", source.getRadius().getNormalizedValue());
+			result.put("metric", source.getRadius().getMetric().toString());
+			return result;
+		}
+	}
+
+	/**
+	 * Converts a {@link DBObject} into a {@link Circle}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	@ReadingConverter
+	static enum DbObjectToCircleConverter implements Converter<DBObject, Circle> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public Circle convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			DBObject center = (DBObject) source.get("center");
+			Double radius = (Double) source.get("radius");
+
+			Distance distance = new Distance(radius);
+
+			if (source.containsField("metric")) {
+
+				String metricString = (String) source.get("metric");
+				Assert.notNull(metricString, "Metric must not be null!");
+
+				distance = distance.in(Metrics.valueOf(metricString));
+			}
+
+			Assert.notNull(center, "Center must not be null!");
+			Assert.notNull(radius, "Radius must not be null!");
+
+			return new Circle(DbObjectToPointConverter.INSTANCE.convert(center), distance);
+		}
+	}
+
+	/**
+	 * Converts a {@link Sphere} into a {@link BasicDBList}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	static enum SphereToDbObjectConverter implements Converter<Sphere, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(Sphere source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			DBObject result = new BasicDBObject();
+			result.put("center", PointToDbObjectConverter.INSTANCE.convert(source.getCenter()));
+			result.put("radius", source.getRadius().getNormalizedValue());
+			result.put("metric", source.getRadius().getMetric().toString());
+			return result;
+		}
+	}
+
+	/**
+	 * Converts a {@link BasicDBList} into a {@link Sphere}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	@ReadingConverter
+	static enum DbObjectToSphereConverter implements Converter<DBObject, Sphere> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public Sphere convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			DBObject center = (DBObject) source.get("center");
+			Double radius = (Double) source.get("radius");
+
+			Distance distance = new Distance(radius);
+
+			if (source.containsField("metric")) {
+
+				String metricString = (String) source.get("metric");
+				Assert.notNull(metricString, "Metric must not be null!");
+
+				distance = distance.in(Metrics.valueOf(metricString));
+			}
+
+			Assert.notNull(center, "Center must not be null!");
+			Assert.notNull(radius, "Radius must not be null!");
+
+			return new Sphere(DbObjectToPointConverter.INSTANCE.convert(center), distance);
+		}
+	}
+
+	/**
+	 * Converts a {@link Polygon} into a {@link BasicDBList}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	static enum PolygonToDbObjectConverter implements Converter<Polygon, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(Polygon source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			List<Point> points = source.getPoints();
+			List<DBObject> pointTuples = new ArrayList<DBObject>(points.size());
+
+			for (Point point : points) {
+				pointTuples.add(PointToDbObjectConverter.INSTANCE.convert(point));
+			}
+
+			DBObject result = new BasicDBObject();
+			result.put("points", pointTuples);
+			return result;
+		}
+	}
+
+	/**
+	 * Converts a {@link BasicDBList} into a {@link Polygon}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	@ReadingConverter
+	static enum DbObjectToPolygonConverter implements Converter<DBObject, Polygon> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		@SuppressWarnings({ "unchecked" })
+		public Polygon convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			List<DBObject> points = (List<DBObject>) source.get("points");
+			List<Point> newPoints = new ArrayList<Point>(points.size());
+
+			for (DBObject element : points) {
+
+				Assert.notNull(element, "Point elements of polygon must not be null!");
+				newPoints.add(DbObjectToPointConverter.INSTANCE.convert(element));
+			}
+
+			return new Polygon(newPoints);
+		}
+	}
+
+	/**
+	 * Converts a {@link Sphere} into a {@link BasicDBList}.
+	 * 
+	 * @author Thomas Darimont
+	 * @since 1.5
+	 */
+	static enum GeoCommandToDbObjectConverter implements Converter<GeoCommand, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		@SuppressWarnings("rawtypes")
+		public DBObject convert(GeoCommand source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			BasicDBList argument = new BasicDBList();
+
+			Shape shape = source.getShape();
+
+			if (shape instanceof GeoJson) {
+				return GeoJsonToDbObjectConverter.INSTANCE.convert((GeoJson) shape);
+			}
+
+			if (shape instanceof Box) {
+
+				argument.add(toList(((Box) shape).getFirst()));
+				argument.add(toList(((Box) shape).getSecond()));
+
+			} else if (shape instanceof Circle) {
+
+				argument.add(toList(((Circle) shape).getCenter()));
+				argument.add(((Circle) shape).getRadius().getNormalizedValue());
+
+			} else if (shape instanceof Circle) {
+
+				argument.add(toList(((Circle) shape).getCenter()));
+				argument.add(((Circle) shape).getRadius());
+
+			} else if (shape instanceof Polygon) {
+
+				for (Point point : ((Polygon) shape).getPoints()) {
+					argument.add(toList(point));
+				}
+
+			} else if (shape instanceof Sphere) {
+
+				argument.add(toList(((Sphere) shape).getCenter()));
+				argument.add(((Sphere) shape).getRadius().getNormalizedValue());
+			}
+
+			return new BasicDBObject(source.getCommand(), argument);
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	@SuppressWarnings("rawtypes")
+	static enum GeoJsonToDbObjectConverter implements Converter<GeoJson, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(GeoJson source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			DBObject dbo = new BasicDBObject("type", source.getType());
+
+			if (source instanceof GeoJsonGeometryCollection) {
+
+				BasicDBList dbl = new BasicDBList();
+
+				for (GeoJson geometry : ((GeoJsonGeometryCollection) source).getCoordinates()) {
+					dbl.add(convert(geometry));
+				}
+
+				dbo.put("geometries", dbl);
+
+			} else {
+				dbo.put("coordinates", convertIfNecessarry(source.getCoordinates()));
+			}
+
+			return dbo;
+		}
+
+		private Object convertIfNecessarry(Object candidate) {
+
+			if (candidate instanceof GeoJson) {
+				return convertIfNecessarry(((GeoJson) candidate).getCoordinates());
+			}
+
+			if (candidate instanceof Iterable) {
+
+				BasicDBList dbl = new BasicDBList();
+
+				for (Object element : (Iterable) candidate) {
+					dbl.add(convertIfNecessarry(element));
+				}
+
+				return dbl;
+			}
+
+			if (candidate instanceof Point) {
+				return toList((Point) candidate);
+			}
+
+			return candidate;
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum GeoJsonPointToDbObjectConverter implements Converter<GeoJsonPoint, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(GeoJsonPoint source) {
+			return GeoJsonToDbObjectConverter.INSTANCE.convert(source);
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum GeoJsonPolygonToDbObjectConverter implements Converter<GeoJsonPolygon, DBObject> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public DBObject convert(GeoJsonPolygon source) {
+			return GeoJsonToDbObjectConverter.INSTANCE.convert(source);
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonPointConverter implements Converter<DBObject, GeoJsonPoint> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		@SuppressWarnings("unchecked")
+		public GeoJsonPoint convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "Point"),
+					String.format("Cannot convert type '%s' to Point.", source.get("type")));
+
+			List<Double> dbl = (List<Double>) source.get("coordinates");
+			return new GeoJsonPoint(dbl.get(0).doubleValue(), dbl.get(1).doubleValue());
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonPolygonConverter implements Converter<DBObject, GeoJsonPolygon> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public GeoJsonPolygon convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "Polygon"),
+					String.format("Cannot convert type '%s' to Polygon.", source.get("type")));
+
+			return toGeoJsonPolygon((BasicDBList) source.get("coordinates"));
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonMultiPolygonConverter implements Converter<DBObject, GeoJsonMultiPolygon> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public GeoJsonMultiPolygon convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "MultiPolygon"),
+					String.format("Cannot convert type '%s' to MultiPolygon.", source.get("type")));
+
+			BasicDBList dbl = (BasicDBList) source.get("coordinates");
+			List<GeoJsonPolygon> polygones = new ArrayList<GeoJsonPolygon>();
+
+			for (Object polygon : dbl) {
+				polygones.add(toGeoJsonPolygon((BasicDBList) polygon));
+			}
+
+			return new GeoJsonMultiPolygon(polygones);
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonLineStringConverter implements Converter<DBObject, GeoJsonLineString> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public GeoJsonLineString convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "LineString"),
+					String.format("Cannot convert type '%s' to LineString.", source.get("type")));
+
+			BasicDBList cords = (BasicDBList) source.get("coordinates");
+
+			return new GeoJsonLineString(toListOfPoint(cords));
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonMultiPointConverter implements Converter<DBObject, GeoJsonMultiPoint> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public GeoJsonMultiPoint convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "MultiPoint"),
+					String.format("Cannot convert type '%s' to MultiPoint.", source.get("type")));
+
+			BasicDBList cords = (BasicDBList) source.get("coordinates");
+
+			return new GeoJsonMultiPoint(toListOfPoint(cords));
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonMultiLineStringConverter implements Converter<DBObject, GeoJsonMultiLineString> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public GeoJsonMultiLineString convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "MultiLineString"),
+					String.format("Cannot convert type '%s' to MultiLineString.", source.get("type")));
+
+			List<GeoJsonLineString> lines = new ArrayList<GeoJsonLineString>();
+			BasicDBList cords = (BasicDBList) source.get("coordinates");
+
+			for (Object line : cords) {
+				lines.add(new GeoJsonLineString(toListOfPoint((BasicDBList) line)));
+			}
+			return new GeoJsonMultiLineString(lines);
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	static enum DbObjectToGeoJsonGeometryCollectionConverter implements Converter<DBObject, GeoJsonGeometryCollection> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@SuppressWarnings("rawtypes")
+		@Override
+		public GeoJsonGeometryCollection convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			Assert.isTrue(ObjectUtils.nullSafeEquals(source.get("type"), "GeometryCollection"),
+					String.format("Cannot convert type '%s' to GeometryCollection.", source.get("type")));
+
+			List<GeoJson<?>> geometries = new ArrayList<GeoJson<?>>();
+			for (Object o : (List) source.get("geometries")) {
+				geometries.add(convertGeometries((DBObject) o));
+			}
+			return new GeoJsonGeometryCollection(geometries);
+
+		}
+
+		private static GeoJson<?> convertGeometries(DBObject source) {
+
+			Object type = source.get("type");
+			if (ObjectUtils.nullSafeEquals(type, "Point")) {
+				return DbObjectToGeoJsonPointConverter.INSTANCE.convert(source);
+			}
+
+			if (ObjectUtils.nullSafeEquals(type, "MultiPoint")) {
+				return DbObjectToGeoJsonMultiPointConverter.INSTANCE.convert(source);
+			}
+
+			if (ObjectUtils.nullSafeEquals(type, "LineString")) {
+				return DbObjectToGeoJsonLineStringConverter.INSTANCE.convert(source);
+			}
+
+			if (ObjectUtils.nullSafeEquals(type, "MultiLineString")) {
+				return DbObjectToGeoJsonMultiLineStringConverter.INSTANCE.convert(source);
+			}
+
+			if (ObjectUtils.nullSafeEquals(type, "Polygon")) {
+				return DbObjectToGeoJsonPolygonConverter.INSTANCE.convert(source);
+			}
+			if (ObjectUtils.nullSafeEquals(type, "MultiPolygon")) {
+				return DbObjectToGeoJsonMultiPolygonConverter.INSTANCE.convert(source);
+			}
+
+			throw new IllegalArgumentException(String.format("Cannot convert unknown GeoJson type %s", type));
+		}
+	}
+
+	static List<Double> toList(Point point) {
+		return Arrays.asList(point.getX(), point.getY());
+	}
+
+	/**
+	 * Converts a coordinate pairs nested in in {@link BasicDBList} into {@link GeoJsonPoint}s.
+	 * 
+	 * @param listOfCoordinatePairs
+	 * @return
+	 * @since 1.7
+	 */
+	@SuppressWarnings("unchecked")
+	static List<Point> toListOfPoint(BasicDBList listOfCoordinatePairs) {
+
+		List<Point> points = new ArrayList<Point>();
+
+		for (Object point : listOfCoordinatePairs) {
+
+			Assert.isInstanceOf(List.class, point);
+
+			List<Double> coordinatesList = (List<Double>) point;
+
+			points.add(new GeoJsonPoint(coordinatesList.get(0).doubleValue(), coordinatesList.get(1).doubleValue()));
+		}
+		return points;
+	}
+
+	/**
+	 * Converts a coordinate pairs nested in in {@link BasicDBList} into {@link GeoJsonPolygon}.
+	 * 
+	 * @param dbList
+	 * @return
+	 * @since 1.7
+	 */
+	static GeoJsonPolygon toGeoJsonPolygon(BasicDBList dbList) {
+		return new GeoJsonPolygon(toListOfPoint((BasicDBList) dbList.get(0)));
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/LazyLoadingProxy.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver.LazyLoadingInterceptor;
+
+import com.mongodb.DBRef;
+
+/**
+ * Allows direct interaction with the underlying {@link LazyLoadingInterceptor}.
+ * 
+ * @author Thomas Darimont
+ * @author Christoph Strobl
+ * @since 1.5
+ */
+public interface LazyLoadingProxy {
+
+	/**
+	 * Initializes the proxy and returns the wrapped value.
+	 * 
+	 * @return
+	 * @since 1.5
+	 */
+	Object getTarget();
+
+	/**
+	 * Returns the {@link DBRef} represented by this {@link LazyLoadingProxy}, may be null.
+	 * 
+	 * @return
+	 * @since 1.5
+	 */
+	DBRef toDBRef();
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MappingMongoConverter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 by the original author(s).
+ * Copyright 2011-2015 by the original author(s).
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -32,15 +32,16 @@ import org.springframework.context.ApplicationContextAware;
 import org.springframework.core.CollectionFactory;
 import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.ConversionService;
-import org.springframework.core.convert.support.ConversionServiceFactory;
+import org.springframework.core.convert.support.DefaultConversionService;
 import org.springframework.data.convert.EntityInstantiator;
 import org.springframework.data.convert.TypeMapper;
 import org.springframework.data.mapping.Association;
 import org.springframework.data.mapping.AssociationHandler;
+import org.springframework.data.mapping.PersistentPropertyAccessor;
 import org.springframework.data.mapping.PreferredConstructor.Parameter;
 import org.springframework.data.mapping.PropertyHandler;
 import org.springframework.data.mapping.context.MappingContext;
-import org.springframework.data.mapping.model.BeanWrapper;
+import org.springframework.data.mapping.model.ConvertingPropertyAccessor;
 import org.springframework.data.mapping.model.DefaultSpELExpressionEvaluator;
 import org.springframework.data.mapping.model.MappingException;
 import org.springframework.data.mapping.model.ParameterValueProvider;
@@ -56,6 +57,7 @@ import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
 import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
 import org.springframework.util.CollectionUtils;
 
 import com.mongodb.BasicDBList;
@@ -71,17 +73,20 @@ import com.mongodb.DBRef;
  * @author Jon Brisbin
  * @author Patrik Wasik
  * @author Thomas Darimont
+ * @author Christoph Strobl
  */
-public class MappingMongoConverter extends AbstractMongoConverter implements ApplicationContextAware {
+public class MappingMongoConverter extends AbstractMongoConverter implements ApplicationContextAware, ValueResolver {
 
-	protected static final Logger log = LoggerFactory.getLogger(MappingMongoConverter.class);
+	private static final String INCOMPATIBLE_TYPES = "Cannot convert %1$s of type %2$s into an instance of %3$s! Implement a custom Converter<%2$s, %3$s> and register it with the CustomConversions. Parent object was: %4$s";
+
+	protected static final Logger LOGGER = LoggerFactory.getLogger(MappingMongoConverter.class);
 
 	protected final MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext;
 	protected final SpelExpressionParser spelExpressionParser = new SpelExpressionParser();
 	protected final QueryMapper idMapper;
 	protected final DbRefResolver dbRefResolver;
+
 	protected ApplicationContext applicationContext;
-	protected boolean useFieldAccessOnly = true;
 	protected MongoTypeMapper typeMapper;
 	protected String mapKeyDotReplacement = null;
 
@@ -93,11 +98,10 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * @param mongoDbFactory must not be {@literal null}.
 	 * @param mappingContext must not be {@literal null}.
 	 */
-	@SuppressWarnings("deprecation")
 	public MappingMongoConverter(DbRefResolver dbRefResolver,
 			MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext) {
 
-		super(ConversionServiceFactory.createDefaultConversionService());
+		super(new DefaultConversionService());
 
 		Assert.notNull(dbRefResolver, "DbRefResolver must not be null!");
 		Assert.notNull(mappingContext, "MappingContext must not be null!");
@@ -132,8 +136,8 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * @param typeMapper the typeMapper to set
 	 */
 	public void setTypeMapper(MongoTypeMapper typeMapper) {
-		this.typeMapper = typeMapper == null ? new DefaultMongoTypeMapper(DefaultMongoTypeMapper.DEFAULT_TYPE_KEY,
-				mappingContext) : typeMapper;
+		this.typeMapper = typeMapper == null
+				? new DefaultMongoTypeMapper(DefaultMongoTypeMapper.DEFAULT_TYPE_KEY, mappingContext) : typeMapper;
 	}
 
 	/*
@@ -165,17 +169,6 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		return mappingContext;
 	}
 
-	/**
-	 * Configures whether to use field access only for entity mapping. Setting this to true will force the
-	 * {@link MongoConverter} to not go through getters or setters even if they are present for getting and setting
-	 * property values.
-	 * 
-	 * @param useFieldAccessOnly
-	 */
-	public void setUseFieldAccessOnly(boolean useFieldAccessOnly) {
-		this.useFieldAccessOnly = useFieldAccessOnly;
-	}
-
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
@@ -195,11 +188,11 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	}
 
 	protected <S extends Object> S read(TypeInformation<S> type, DBObject dbo) {
-		return read(type, dbo, null);
+		return read(type, dbo, ObjectPath.ROOT);
 	}
 
 	@SuppressWarnings("unchecked")
-	protected <S extends Object> S read(TypeInformation<S> type, DBObject dbo, Object parent) {
+	private <S extends Object> S read(TypeInformation<S> type, DBObject dbo, ObjectPath path) {
 
 		if (null == dbo) {
 			return null;
@@ -217,11 +210,15 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		}
 
 		if (typeToUse.isCollectionLike() && dbo instanceof BasicDBList) {
-			return (S) readCollectionOrArray(typeToUse, (BasicDBList) dbo, parent);
+			return (S) readCollectionOrArray(typeToUse, (BasicDBList) dbo, path);
 		}
 
 		if (typeToUse.isMap()) {
-			return (S) readMap(typeToUse, dbo, parent);
+			return (S) readMap(typeToUse, dbo, path);
+		}
+
+		if (dbo instanceof BasicDBList) {
+			throw new MappingException(String.format(INCOMPATIBLE_TYPES, dbo, BasicDBList.class, typeToUse.getType(), path));
 		}
 
 		// Retrieve persistent entity info
@@ -231,41 +228,59 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			throw new MappingException("No mapping metadata found for " + rawType.getName());
 		}
 
-		return read(persistentEntity, dbo, parent);
+		return read(persistentEntity, dbo, path);
 	}
 
 	private ParameterValueProvider<MongoPersistentProperty> getParameterProvider(MongoPersistentEntity<?> entity,
-			DBObject source, DefaultSpELExpressionEvaluator evaluator, Object parent) {
+			DBObject source, DefaultSpELExpressionEvaluator evaluator, ObjectPath path) {
 
-		MongoDbPropertyValueProvider provider = new MongoDbPropertyValueProvider(source, evaluator, parent);
+		MongoDbPropertyValueProvider provider = new MongoDbPropertyValueProvider(source, evaluator, path);
 		PersistentEntityParameterValueProvider<MongoPersistentProperty> parameterProvider = new PersistentEntityParameterValueProvider<MongoPersistentProperty>(
-				entity, provider, parent);
+				entity, provider, path.getCurrentObject());
 
 		return new ConverterAwareSpELExpressionParameterValueProvider(evaluator, conversionService, parameterProvider,
-				parent);
+				path);
 	}
 
-	private <S extends Object> S read(final MongoPersistentEntity<S> entity, final DBObject dbo, final Object parent) {
+	private <S extends Object> S read(final MongoPersistentEntity<S> entity, final DBObject dbo, final ObjectPath path) {
 
 		final DefaultSpELExpressionEvaluator evaluator = new DefaultSpELExpressionEvaluator(dbo, spELContext);
 
-		ParameterValueProvider<MongoPersistentProperty> provider = getParameterProvider(entity, dbo, evaluator, parent);
+		ParameterValueProvider<MongoPersistentProperty> provider = getParameterProvider(entity, dbo, evaluator, path);
 		EntityInstantiator instantiator = instantiators.getInstantiatorFor(entity);
 		S instance = instantiator.createInstance(entity, provider);
 
-		final BeanWrapper<MongoPersistentEntity<S>, S> wrapper = BeanWrapper.create(instance, conversionService);
-		final S result = wrapper.getBean();
+		final PersistentPropertyAccessor accessor = new ConvertingPropertyAccessor(entity.getPropertyAccessor(instance),
+				conversionService);
+
+		final MongoPersistentProperty idProperty = entity.getIdProperty();
+		final S result = instance;
+
+		// make sure id property is set before all other properties
+		Object idValue = null;
+
+		if (idProperty != null) {
+			idValue = getValueInternal(idProperty, dbo, evaluator, path);
+			accessor.setProperty(idProperty, idValue);
+		}
+
+		final ObjectPath currentPath = path.push(result, entity,
+				idValue != null ? dbo.get(idProperty.getFieldName()) : null);
 
 		// Set properties not already set in the constructor
 		entity.doWithProperties(new PropertyHandler<MongoPersistentProperty>() {
 			public void doWithPersistentProperty(MongoPersistentProperty prop) {
 
+				// we skip the id property since it was already set
+				if (idProperty != null && idProperty.equals(prop)) {
+					return;
+				}
+
 				if (!dbo.containsField(prop.getFieldName()) || entity.isConstructorArgument(prop)) {
 					return;
 				}
 
-				Object obj = getValueInternal(prop, dbo, evaluator, result);
-				wrapper.setProperty(prop, obj, useFieldAccessOnly);
+				accessor.setProperty(prop, getValueInternal(prop, dbo, evaluator, currentPath));
 			}
 		});
 
@@ -273,17 +288,21 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		entity.doWithAssociations(new AssociationHandler<MongoPersistentProperty>() {
 			public void doWithAssociation(Association<MongoPersistentProperty> association) {
 
-				MongoPersistentProperty inverseProp = association.getInverse();
+				final MongoPersistentProperty property = association.getInverse();
+				Object value = dbo.get(property.getFieldName());
 
-				Object obj = dbRefResolver.resolveDbRef(inverseProp, new DbRefResolverCallback() {
+				if (value == null || entity.isConstructorArgument(property)) {
+					return;
+				}
 
-					@Override
-					public Object resolve(MongoPersistentProperty property) {
-						return getValueInternal(property, dbo, evaluator, parent);
-					}
-				});
+				DBRef dbref = value instanceof DBRef ? (DBRef) value : null;
 
-				wrapper.setProperty(inverseProp, obj);
+				DbRefProxyHandler handler = new DefaultDbRefProxyHandler(spELContext, mappingContext,
+						MappingMongoConverter.this);
+				DbRefResolverCallback callback = new DefaultDbRefResolverCallback(dbo, currentPath, evaluator,
+						MappingMongoConverter.this);
+
+				accessor.setProperty(property, dbRefResolver.resolveDbRef(property, dbref, callback, handler));
 			}
 		});
 
@@ -303,7 +322,12 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			Assert.isTrue(annotation != null, "The referenced property has to be mapped with @DBRef!");
 		}
 
-		return createDBRef(object, annotation);
+		// @see DATAMONGO-913
+		if (object instanceof LazyLoadingProxy) {
+			return ((LazyLoadingProxy) object).toDBRef();
+		}
+
+		return createDBRef(object, referingProperty);
 	}
 
 	/**
@@ -318,14 +342,17 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return;
 		}
 
-		boolean handledByCustomConverter = conversions.getCustomWriteTarget(obj.getClass(), DBObject.class) != null;
-		TypeInformation<? extends Object> type = ClassTypeInformation.from(obj.getClass());
+		Class<?> entityType = obj.getClass();
+		boolean handledByCustomConverter = conversions.getCustomWriteTarget(entityType, DBObject.class) != null;
+		TypeInformation<? extends Object> type = ClassTypeInformation.from(entityType);
 
 		if (!handledByCustomConverter && !(dbo instanceof BasicDBList)) {
 			typeMapper.writeType(type, dbo);
 		}
 
-		writeInternal(obj, dbo, type);
+		Object target = obj instanceof LazyLoadingProxy ? ((LazyLoadingProxy) obj).getTarget() : obj;
+
+		writeInternal(target, dbo, type);
 	}
 
 	/**
@@ -341,7 +368,8 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return;
 		}
 
-		Class<?> customTarget = conversions.getCustomWriteTarget(obj.getClass(), DBObject.class);
+		Class<?> entityType = obj.getClass();
+		Class<?> customTarget = conversions.getCustomWriteTarget(entityType, DBObject.class);
 
 		if (customTarget != null) {
 			DBObject result = conversionService.convert(obj, DBObject.class);
@@ -349,17 +377,17 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return;
 		}
 
-		if (Map.class.isAssignableFrom(obj.getClass())) {
+		if (Map.class.isAssignableFrom(entityType)) {
 			writeMapInternal((Map<Object, Object>) obj, dbo, ClassTypeInformation.MAP);
 			return;
 		}
 
-		if (Collection.class.isAssignableFrom(obj.getClass())) {
+		if (Collection.class.isAssignableFrom(entityType)) {
 			writeCollectionInternal((Collection<?>) obj, ClassTypeInformation.LIST, (BasicDBList) dbo);
 			return;
 		}
 
-		MongoPersistentEntity<?> entity = mappingContext.getPersistentEntity(obj.getClass());
+		MongoPersistentEntity<?> entity = mappingContext.getPersistentEntity(entityType);
 		writeInternal(obj, dbo, entity);
 		addCustomTypeKeyIfNecessary(typeHint, obj, dbo);
 	}
@@ -374,15 +402,13 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			throw new MappingException("No mapping metadata found for entity of type " + obj.getClass().getName());
 		}
 
-		final BeanWrapper<MongoPersistentEntity<Object>, Object> wrapper = BeanWrapper.create(obj, conversionService);
+		final PersistentPropertyAccessor accessor = entity.getPropertyAccessor(obj);
 		final MongoPersistentProperty idProperty = entity.getIdProperty();
 
 		if (!dbo.containsField("_id") && null != idProperty) {
 
-			boolean fieldAccessOnly = idProperty.usePropertyAccess() ? false : useFieldAccessOnly;
-
 			try {
-				Object id = wrapper.getProperty(idProperty, Object.class, fieldAccessOnly);
+				Object id = accessor.getProperty(idProperty);
 				dbo.put("_id", idMapper.convertId(id));
 			} catch (ConversionException ignored) {}
 		}
@@ -391,15 +417,14 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		entity.doWithProperties(new PropertyHandler<MongoPersistentProperty>() {
 			public void doWithPersistentProperty(MongoPersistentProperty prop) {
 
-				if (prop.equals(idProperty)) {
+				if (prop.equals(idProperty) || !prop.isWritable()) {
 					return;
 				}
 
-				boolean fieldAccessOnly = prop.usePropertyAccess() ? false : useFieldAccessOnly;
-
-				Object propertyObj = wrapper.getProperty(prop, prop.getType(), fieldAccessOnly);
+				Object propertyObj = accessor.getProperty(prop);
 
 				if (null != propertyObj) {
+
 					if (!conversions.isSimpleType(propertyObj.getClass())) {
 						writePropertyInternal(propertyObj, dbo, prop);
 					} else {
@@ -410,10 +435,12 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		});
 
 		entity.doWithAssociations(new AssociationHandler<MongoPersistentProperty>() {
+
 			public void doWithAssociation(Association<MongoPersistentProperty> association) {
+
 				MongoPersistentProperty inverseProp = association.getInverse();
-				Class<?> type = inverseProp.getType();
-				Object propertyObj = wrapper.getProperty(inverseProp, type, useFieldAccessOnly);
+				Object propertyObj = accessor.getProperty(inverseProp);
+
 				if (null != propertyObj) {
 					writePropertyInternal(propertyObj, dbo, inverseProp);
 				}
@@ -446,13 +473,32 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		}
 
 		if (prop.isDbReference()) {
-			DBRef dbRefObj = createDBRef(obj, prop.getDBRef());
+
+			DBRef dbRefObj = null;
+
+			/*
+			 * If we already have a LazyLoadingProxy, we use it's cached DBRef value instead of 
+			 * unnecessarily initializing it only to convert it to a DBRef a few instructions later.
+			 */
+			if (obj instanceof LazyLoadingProxy) {
+				dbRefObj = ((LazyLoadingProxy) obj).toDBRef();
+			}
+
+			dbRefObj = dbRefObj != null ? dbRefObj : createDBRef(obj, prop);
+
 			if (null != dbRefObj) {
 				accessor.put(prop, dbRefObj);
 				return;
 			}
 		}
 
+		/*
+		 * If we have a LazyLoadingProxy we make sure it is initialized first.
+		 */
+		if (obj instanceof LazyLoadingProxy) {
+			obj = ((LazyLoadingProxy) obj).getTarget();
+		}
+
 		// Lookup potential custom target type
 		Class<?> basicTargetType = conversions.getCustomWriteTarget(obj.getClass(), null);
 
@@ -464,10 +510,10 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		Object existingValue = accessor.get(prop);
 		BasicDBObject propDbObj = existingValue instanceof BasicDBObject ? (BasicDBObject) existingValue
 				: new BasicDBObject();
-		addCustomTypeKeyIfNecessary(type, obj, propDbObj);
+		addCustomTypeKeyIfNecessary(ClassTypeInformation.from(prop.getRawType()), obj, propDbObj);
 
-		MongoPersistentEntity<?> entity = isSubtype(prop.getType(), obj.getClass()) ? mappingContext
-				.getPersistentEntity(obj.getClass()) : mappingContext.getPersistentEntity(type);
+		MongoPersistentEntity<?> entity = isSubtype(prop.getType(), obj.getClass())
+				? mappingContext.getPersistentEntity(obj.getClass()) : mappingContext.getPersistentEntity(type);
 
 		writeInternal(obj, propDbObj, entity);
 		accessor.put(prop, propDbObj);
@@ -515,7 +561,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 				continue;
 			}
 
-			DBRef dbRef = createDBRef(element, property.getDBRef());
+			DBRef dbRef = createDBRef(element, property);
 			dbList.add(dbRef);
 		}
 
@@ -547,8 +593,8 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 
 			if (conversions.isSimpleType(key.getClass())) {
 
-				String simpleKey = potentiallyEscapeMapKey(key.toString());
-				dbObject.put(simpleKey, value != null ? createDBRef(value, property.getDBRef()) : null);
+				String simpleKey = prepareMapKey(key.toString());
+				dbObject.put(simpleKey, value != null ? createDBRef(value, property) : null);
 
 			} else {
 				throw new MappingException("Cannot use a complex object as a key value.");
@@ -599,12 +645,13 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	protected DBObject writeMapInternal(Map<Object, Object> obj, DBObject dbo, TypeInformation<?> propertyType) {
 
 		for (Map.Entry<Object, Object> entry : obj.entrySet()) {
+
 			Object key = entry.getKey();
 			Object val = entry.getValue();
+
 			if (conversions.isSimpleType(key.getClass())) {
-				// Don't use conversion service here as removal of ObjectToString converter results in some primitive types not
-				// being convertable
-				String simpleKey = potentiallyEscapeMapKey(key.toString());
+
+				String simpleKey = prepareMapKey(key);
 				if (val == null || conversions.isSimpleType(val.getClass())) {
 					writeSimpleInternal(val, dbo, simpleKey);
 				} else if (val instanceof Collection || val.getClass().isArray()) {
@@ -625,6 +672,21 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		return dbo;
 	}
 
+	/**
+	 * Prepares the given {@link Map} key to be converted into a {@link String}. Will invoke potentially registered custom
+	 * conversions and escape dots from the result as they're not supported as {@link Map} key in MongoDB.
+	 * 
+	 * @param key must not be {@literal null}.
+	 * @return
+	 */
+	private String prepareMapKey(Object key) {
+
+		Assert.notNull(key, "Map key must not be null!");
+
+		String convertedKey = potentiallyConvertMapKey(key);
+		return potentiallyEscapeMapKey(convertedKey);
+	}
+
 	/**
 	 * Potentially replaces dots in the given map key with the configured map key replacement if configured or aborts
 	 * conversion if none is configured.
@@ -640,13 +702,31 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		}
 
 		if (mapKeyDotReplacement == null) {
-			throw new MappingException(String.format("Map key %s contains dots but no replacement was configured! Make "
-					+ "sure map keys don't contain dots in the first place or configure an appropriate replacement!", source));
+			throw new MappingException(String.format(
+					"Map key %s contains dots but no replacement was configured! Make "
+							+ "sure map keys don't contain dots in the first place or configure an appropriate replacement!",
+					source));
 		}
 
 		return source.replaceAll("\\.", mapKeyDotReplacement);
 	}
 
+	/**
+	 * Returns a {@link String} representation of the given {@link Map} key
+	 * 
+	 * @param key
+	 * @return
+	 */
+	private String potentiallyConvertMapKey(Object key) {
+
+		if (key instanceof String) {
+			return (String) key;
+		}
+
+		return conversions.hasCustomWriteTarget(key.getClass(), String.class)
+				? (String) getPotentiallyConvertedSimpleWrite(key) : key.toString();
+	}
+
 	/**
 	 * Translates the map key replacements in the given key just read with a dot in case a map key replacement has been
 	 * configured.
@@ -661,19 +741,20 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	/**
 	 * Adds custom type information to the given {@link DBObject} if necessary. That is if the value is not the same as
 	 * the one given. This is usually the case if you store a subtype of the actual declared type of the property.
-	 * 
+	 *
 	 * @param type
 	 * @param value must not be {@literal null}.
 	 * @param dbObject must not be {@literal null}.
 	 */
 	protected void addCustomTypeKeyIfNecessary(TypeInformation<?> type, Object value, DBObject dbObject) {
 
-		TypeInformation<?> actualType = type != null ? type.getActualType() : type;
+		TypeInformation<?> actualType = type != null ? type.getActualType() : null;
 		Class<?> reference = actualType == null ? Object.class : actualType.getType();
+		Class<?> valueType = ClassUtils.getUserClass(value.getClass());
 
-		boolean notTheSameClass = !value.getClass().equals(reference);
+		boolean notTheSameClass = !valueType.equals(reference);
 		if (notTheSameClass) {
-			typeMapper.writeType(value.getClass(), dbObject);
+			typeMapper.writeType(valueType, dbObject);
 		}
 	}
 
@@ -726,7 +807,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	@SuppressWarnings({ "rawtypes", "unchecked" })
 	private Object getPotentiallyConvertedSimpleRead(Object value, Class<?> target) {
 
-		if (value == null || target == null) {
+		if (value == null || target == null || target.isAssignableFrom(value.getClass())) {
 			return value;
 		}
 
@@ -738,10 +819,10 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return Enum.valueOf((Class<Enum>) target, value.toString());
 		}
 
-		return target.isAssignableFrom(value.getClass()) ? value : conversionService.convert(value, target);
+		return conversionService.convert(value, target);
 	}
 
-	protected DBRef createDBRef(Object target, org.springframework.data.mongodb.core.mapping.DBRef dbref) {
+	protected DBRef createDBRef(Object target, MongoPersistentProperty property) {
 
 		Assert.notNull(target);
 
@@ -750,6 +831,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		}
 
 		MongoPersistentEntity<?> targetEntity = mappingContext.getPersistentEntity(target.getClass());
+		targetEntity = targetEntity == null ? targetEntity = mappingContext.getPersistentEntity(property) : targetEntity;
 
 		if (null == targetEntity) {
 			throw new MappingException("No mapping metadata found for " + target.getClass());
@@ -761,21 +843,31 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			throw new MappingException("No id property found on class " + targetEntity.getType());
 		}
 
-		BeanWrapper<MongoPersistentEntity<Object>, Object> wrapper = BeanWrapper.create(target, conversionService);
-		Object id = wrapper.getProperty(idProperty, Object.class, useFieldAccessOnly);
+		Object id = null;
+
+		if (target.getClass().equals(idProperty.getType())) {
+			id = target;
+		} else {
+			PersistentPropertyAccessor accessor = targetEntity.getPropertyAccessor(target);
+			id = accessor.getProperty(idProperty);
+		}
 
 		if (null == id) {
 			throw new MappingException("Cannot create a reference to an object with a NULL id.");
 		}
 
-		return dbRefResolver.createDbRef(dbref, targetEntity, idMapper.convertId(id));
+		return dbRefResolver.createDbRef(property == null ? null : property.getDBRef(), targetEntity,
+				idMapper.convertId(id));
 	}
 
-	protected Object getValueInternal(MongoPersistentProperty prop, DBObject dbo, SpELExpressionEvaluator eval,
-			Object parent) {
-
-		MongoDbPropertyValueProvider provider = new MongoDbPropertyValueProvider(dbo, spELContext, parent);
-		return provider.getPropertyValue(prop);
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.ValueResolver#getValueInternal(org.springframework.data.mongodb.core.mapping.MongoPersistentProperty, com.mongodb.DBObject, org.springframework.data.mapping.model.SpELExpressionEvaluator, java.lang.Object)
+	 */
+	@Override
+	public Object getValueInternal(MongoPersistentProperty prop, DBObject dbo, SpELExpressionEvaluator evaluator,
+			ObjectPath path) {
+		return new MongoDbPropertyValueProvider(dbo, evaluator, path).getPropertyValue(prop);
 	}
 
 	/**
@@ -783,12 +875,13 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * 
 	 * @param targetType must not be {@literal null}.
 	 * @param sourceValue must not be {@literal null}.
+	 * @param path must not be {@literal null}.
 	 * @return the converted {@link Collection} or array, will never be {@literal null}.
 	 */
-	@SuppressWarnings("unchecked")
-	private Object readCollectionOrArray(TypeInformation<?> targetType, BasicDBList sourceValue, Object parent) {
+	private Object readCollectionOrArray(TypeInformation<?> targetType, BasicDBList sourceValue, ObjectPath path) {
 
-		Assert.notNull(targetType);
+		Assert.notNull(targetType, "Target type must not be null!");
+		Assert.notNull(path, "Object path must not be null!");
 
 		Class<?> collectionType = targetType.getType();
 
@@ -796,22 +889,22 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return getPotentiallyConvertedSimpleRead(new HashSet<Object>(), collectionType);
 		}
 
-		collectionType = Collection.class.isAssignableFrom(collectionType) ? collectionType : List.class;
-
-		Collection<Object> items = targetType.getType().isArray() ? new ArrayList<Object>() : CollectionFactory
-				.createCollection(collectionType, sourceValue.size());
 		TypeInformation<?> componentType = targetType.getComponentType();
 		Class<?> rawComponentType = componentType == null ? null : componentType.getType();
 
+		collectionType = Collection.class.isAssignableFrom(collectionType) ? collectionType : List.class;
+		Collection<Object> items = targetType.getType().isArray() ? new ArrayList<Object>()
+				: CollectionFactory.createCollection(collectionType, rawComponentType, sourceValue.size());
+
 		for (int i = 0; i < sourceValue.size(); i++) {
 
 			Object dbObjItem = sourceValue.get(i);
 
 			if (dbObjItem instanceof DBRef) {
-				items.add(DBRef.class.equals(rawComponentType) ? dbObjItem : read(componentType, readRef((DBRef) dbObjItem),
-						parent));
+				items.add(
+						DBRef.class.equals(rawComponentType) ? dbObjItem : read(componentType, readRef((DBRef) dbObjItem), path));
 			} else if (dbObjItem instanceof DBObject) {
-				items.add(read(componentType, (DBObject) dbObjItem, parent));
+				items.add(read(componentType, (DBObject) dbObjItem, path));
 			} else {
 				items.add(getPotentiallyConvertedSimpleRead(dbObjItem, rawComponentType));
 			}
@@ -824,16 +917,25 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * Reads the given {@link DBObject} into a {@link Map}. will recursively resolve nested {@link Map}s as well.
 	 * 
 	 * @param type the {@link Map} {@link TypeInformation} to be used to unmarshall this {@link DBObject}.
-	 * @param dbObject
+	 * @param dbObject must not be {@literal null}
+	 * @param path must not be {@literal null}
 	 * @return
 	 */
 	@SuppressWarnings("unchecked")
-	protected Map<Object, Object> readMap(TypeInformation<?> type, DBObject dbObject, Object parent) {
+	protected Map<Object, Object> readMap(TypeInformation<?> type, DBObject dbObject, ObjectPath path) {
 
-		Assert.notNull(dbObject);
+		Assert.notNull(dbObject, "DBObject must not be null!");
+		Assert.notNull(path, "Object path must not be null!");
 
 		Class<?> mapType = typeMapper.readType(dbObject, type).getType();
-		Map<Object, Object> map = CollectionFactory.createMap(mapType, dbObject.keySet().size());
+
+		TypeInformation<?> keyType = type.getComponentType();
+		Class<?> rawKeyType = keyType == null ? null : keyType.getType();
+
+		TypeInformation<?> valueType = type.getMapValueType();
+		Class<?> rawValueType = valueType == null ? null : valueType.getType();
+
+		Map<Object, Object> map = CollectionFactory.createMap(mapType, rawKeyType, dbObject.keySet().size());
 		Map<String, Object> sourceMap = dbObject.toMap();
 
 		for (Entry<String, Object> entry : sourceMap.entrySet()) {
@@ -843,18 +945,14 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 
 			Object key = potentiallyUnescapeMapKey(entry.getKey());
 
-			TypeInformation<?> keyTypeInformation = type.getComponentType();
-			if (keyTypeInformation != null) {
-				Class<?> keyType = keyTypeInformation.getType();
-				key = conversionService.convert(key, keyType);
+			if (rawKeyType != null) {
+				key = conversionService.convert(key, rawKeyType);
 			}
 
 			Object value = entry.getValue();
-			TypeInformation<?> valueType = type.getMapValueType();
-			Class<?> rawValueType = valueType == null ? null : valueType.getType();
 
 			if (value instanceof DBObject) {
-				map.put(key, read(valueType, (DBObject) value, parent));
+				map.put(key, read(valueType, (DBObject) value, path));
 			} else if (value instanceof DBRef) {
 				map.put(key, DBRef.class.equals(rawValueType) ? value : read(valueType, readRef((DBRef) value)));
 			} else {
@@ -866,21 +964,6 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		return map;
 	}
 
-	protected <T> List<?> unwrapList(BasicDBList dbList, TypeInformation<T> targetType) {
-		List<Object> rootList = new ArrayList<Object>();
-		for (int i = 0; i < dbList.size(); i++) {
-			Object obj = dbList.get(i);
-			if (obj instanceof BasicDBList) {
-				rootList.add(unwrapList((BasicDBList) obj, targetType.getComponentType()));
-			} else if (obj instanceof DBObject) {
-				rootList.add(read(targetType, (DBObject) obj));
-			} else {
-				rootList.add(obj);
-			}
-		}
-		return rootList;
-	}
-
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.convert.MongoWriter#convertToMongoType(java.lang.Object, org.springframework.data.util.TypeInformation)
@@ -902,15 +985,17 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return getPotentiallyConvertedSimpleWrite(obj);
 		}
 
+		TypeInformation<?> typeHint = typeInformation;
+
 		if (obj instanceof BasicDBList) {
-			return maybeConvertList((BasicDBList) obj);
+			return maybeConvertList((BasicDBList) obj, typeHint);
 		}
 
 		if (obj instanceof DBObject) {
 			DBObject newValueDbo = new BasicDBObject();
 			for (String vk : ((DBObject) obj).keySet()) {
 				Object o = ((DBObject) obj).get(vk);
-				newValueDbo.put(vk, convertToMongoType(o));
+				newValueDbo.put(vk, convertToMongoType(o, typeHint));
 			}
 			return newValueDbo;
 		}
@@ -918,44 +1003,51 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		if (obj instanceof Map) {
 			DBObject result = new BasicDBObject();
 			for (Map.Entry<Object, Object> entry : ((Map<Object, Object>) obj).entrySet()) {
-				result.put(entry.getKey().toString(), convertToMongoType(entry.getValue()));
+				result.put(entry.getKey().toString(), convertToMongoType(entry.getValue(), typeHint));
 			}
 			return result;
 		}
 
 		if (obj.getClass().isArray()) {
-			return maybeConvertList(Arrays.asList((Object[]) obj));
+			return maybeConvertList(Arrays.asList((Object[]) obj), typeHint);
 		}
 
 		if (obj instanceof Collection) {
-			return maybeConvertList((Collection<?>) obj);
+			return maybeConvertList((Collection<?>) obj, typeHint);
 		}
 
 		DBObject newDbo = new BasicDBObject();
 		this.write(obj, newDbo);
 
 		if (typeInformation == null) {
-			return removeTypeInfoRecursively(newDbo);
+			return removeTypeInfo(newDbo, true);
 		}
 
-		return !obj.getClass().equals(typeInformation.getType()) ? newDbo : removeTypeInfoRecursively(newDbo);
+		if (typeInformation.getType().equals(NestedDocument.class)) {
+			return removeTypeInfo(newDbo, false);
+		}
+
+		return !obj.getClass().equals(typeInformation.getType()) ? newDbo : removeTypeInfo(newDbo, true);
 	}
 
-	public BasicDBList maybeConvertList(Iterable<?> source) {
+	public BasicDBList maybeConvertList(Iterable<?> source, TypeInformation<?> typeInformation) {
+
 		BasicDBList newDbl = new BasicDBList();
 		for (Object element : source) {
-			newDbl.add(convertToMongoType(element));
+			newDbl.add(convertToMongoType(element, typeInformation));
 		}
+
 		return newDbl;
 	}
 
 	/**
-	 * Removes the type information from the conversion result.
+	 * Removes the type information from the entire conversion result.
 	 * 
 	 * @param object
+	 * @param recursively whether to apply the removal recursively
 	 * @return
 	 */
-	private Object removeTypeInfoRecursively(Object object) {
+	private Object removeTypeInfo(Object object, boolean recursively) {
 
 		if (!(object instanceof DBObject)) {
 			return object;
@@ -963,19 +1055,29 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 
 		DBObject dbObject = (DBObject) object;
 		String keyToRemove = null;
+
 		for (String key : dbObject.keySet()) {
 
-			if (typeMapper.isTypeKey(key)) {
-				keyToRemove = key;
+			if (recursively) {
+
+				Object value = dbObject.get(key);
+
+				if (value instanceof BasicDBList) {
+					for (Object element : (BasicDBList) value) {
+						removeTypeInfo(element, recursively);
+					}
+				} else {
+					removeTypeInfo(value, recursively);
+				}
 			}
 
-			Object value = dbObject.get(key);
-			if (value instanceof BasicDBList) {
-				for (Object element : (BasicDBList) value) {
-					removeTypeInfoRecursively(element);
+			if (typeMapper.isTypeKey(key)) {
+
+				keyToRemove = key;
+
+				if (!recursively) {
+					break;
 				}
-			} else {
-				removeTypeInfoRecursively(value);
 			}
 		}
 
@@ -986,24 +1088,34 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		return dbObject;
 	}
 
+	/**
+	 * {@link PropertyValueProvider} to evaluate a SpEL expression if present on the property or simply accesses the field
+	 * of the configured source {@link DBObject}.
+	 *
+	 * @author Oliver Gierke
+	 */
 	private class MongoDbPropertyValueProvider implements PropertyValueProvider<MongoPersistentProperty> {
 
 		private final DBObjectAccessor source;
 		private final SpELExpressionEvaluator evaluator;
-		private final Object parent;
+		private final ObjectPath path;
 
-		public MongoDbPropertyValueProvider(DBObject source, SpELContext factory, Object parent) {
-			this(source, new DefaultSpELExpressionEvaluator(source, factory), parent);
-		}
-
-		public MongoDbPropertyValueProvider(DBObject source, DefaultSpELExpressionEvaluator evaluator, Object parent) {
+		/**
+		 * Creates a new {@link MongoDbPropertyValueProvider} for the given source, {@link SpELExpressionEvaluator} and
+		 * {@link ObjectPath}.
+		 * 
+		 * @param source must not be {@literal null}.
+		 * @param evaluator must not be {@literal null}.
+		 * @param path can be {@literal null}.
+		 */
+		public MongoDbPropertyValueProvider(DBObject source, SpELExpressionEvaluator evaluator, ObjectPath path) {
 
 			Assert.notNull(source);
 			Assert.notNull(evaluator);
 
 			this.source = new DBObjectAccessor(source);
 			this.evaluator = evaluator;
-			this.parent = parent;
+			this.path = path;
 		}
 
 		/* 
@@ -1019,7 +1131,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 				return null;
 			}
 
-			return readValue(value, property.getTypeInformation(), parent);
+			return readValue(value, property.getTypeInformation(), path);
 		}
 	}
 
@@ -1029,10 +1141,10 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * 
 	 * @author Oliver Gierke
 	 */
-	private class ConverterAwareSpELExpressionParameterValueProvider extends
-			SpELExpressionParameterValueProvider<MongoPersistentProperty> {
+	private class ConverterAwareSpELExpressionParameterValueProvider
+			extends SpELExpressionParameterValueProvider<MongoPersistentProperty> {
 
-		private final Object parent;
+		private final ObjectPath path;
 
 		/**
 		 * Creates a new {@link ConverterAwareSpELExpressionParameterValueProvider}.
@@ -1042,10 +1154,11 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		 * @param delegate must not be {@literal null}.
 		 */
 		public ConverterAwareSpELExpressionParameterValueProvider(SpELExpressionEvaluator evaluator,
-				ConversionService conversionService, ParameterValueProvider<MongoPersistentProperty> delegate, Object parent) {
+				ConversionService conversionService, ParameterValueProvider<MongoPersistentProperty> delegate,
+				ObjectPath path) {
 
 			super(evaluator, conversionService, delegate);
-			this.parent = parent;
+			this.path = path;
 		}
 
 		/* 
@@ -1054,28 +1167,40 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		 */
 		@Override
 		protected <T> T potentiallyConvertSpelValue(Object object, Parameter<T, MongoPersistentProperty> parameter) {
-			return readValue(object, parameter.getType(), parent);
+			return readValue(object, parameter.getType(), path);
 		}
 	}
 
 	@SuppressWarnings("unchecked")
-	private <T> T readValue(Object value, TypeInformation<?> type, Object parent) {
+	private <T> T readValue(Object value, TypeInformation<?> type, ObjectPath path) {
 
 		Class<?> rawType = type.getType();
 
 		if (conversions.hasCustomReadTarget(value.getClass(), rawType)) {
 			return (T) conversionService.convert(value, rawType);
 		} else if (value instanceof DBRef) {
-			return (T) (rawType.equals(DBRef.class) ? value : read(type, readRef((DBRef) value), parent));
+			return potentiallyReadOrResolveDbRef((DBRef) value, type, path, rawType);
 		} else if (value instanceof BasicDBList) {
-			return (T) readCollectionOrArray(type, (BasicDBList) value, parent);
+			return (T) readCollectionOrArray(type, (BasicDBList) value, path);
 		} else if (value instanceof DBObject) {
-			return (T) read(type, (DBObject) value, parent);
+			return (T) read(type, (DBObject) value, path);
 		} else {
 			return (T) getPotentiallyConvertedSimpleRead(value, rawType);
 		}
 	}
 
+	@SuppressWarnings("unchecked")
+	private <T> T potentiallyReadOrResolveDbRef(DBRef dbref, TypeInformation<?> type, ObjectPath path, Class<?> rawType) {
+
+		if (rawType.equals(DBRef.class)) {
+			return (T) dbref;
+		}
+
+		Object object = dbref == null ? null : path.getPathItem(dbref.getId(), dbref.getCollectionName());
+
+		return (T) (object != null ? object : read(type, readRef(dbref), path));
+	}
+
 	/**
 	 * Performs the fetch operation for the given {@link DBRef}.
 	 * 
@@ -1083,6 +1208,17 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * @return
 	 */
 	DBObject readRef(DBRef ref) {
-		return ref.fetch();
+		return dbRefResolver.fetch(ref);
+	}
+
+	/**
+	 * Marker class used to indicate we have a non root document object here that might be used within an update - so we
+	 * need to preserve type hints for potential nested elements but need to remove it on top level.
+	 * 
+	 * @author Christoph Strobl
+	 * @since 1.8
+	 */
+	static class NestedDocument {
+
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MongoConverters.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2012 the original author or authors.
+ * Copyright 2011-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,28 +19,71 @@ import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Currency;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
 
+import org.bson.types.Code;
 import org.bson.types.ObjectId;
 import org.springframework.core.convert.ConversionFailedException;
 import org.springframework.core.convert.TypeDescriptor;
+import org.springframework.core.convert.converter.ConditionalConverter;
 import org.springframework.core.convert.converter.Converter;
+import org.springframework.core.convert.converter.ConverterFactory;
 import org.springframework.data.convert.ReadingConverter;
+import org.springframework.data.convert.WritingConverter;
+import org.springframework.data.mongodb.core.query.Term;
+import org.springframework.data.mongodb.core.script.NamedMongoScript;
+import org.springframework.util.Assert;
+import org.springframework.util.NumberUtils;
 import org.springframework.util.StringUtils;
 
+import com.mongodb.BasicDBObject;
+import com.mongodb.BasicDBObjectBuilder;
 import com.mongodb.DBObject;
 
 /**
  * Wrapper class to contain useful converters for the usage with Mongo.
  * 
  * @author Oliver Gierke
+ * @author Thomas Darimont
+ * @author Christoph Strobl
  */
 abstract class MongoConverters {
 
 	/**
 	 * Private constructor to prevent instantiation.
 	 */
-	private MongoConverters() {
+	private MongoConverters() {}
 
+	/**
+	 * Returns the converters to be registered.
+	 * 
+	 * @return
+	 * @since 1.9
+	 */
+	public static Collection<Object> getConvertersToRegister() {
+
+		List<Object> converters = new ArrayList<Object>();
+
+		converters.add(BigDecimalToStringConverter.INSTANCE);
+		converters.add(StringToBigDecimalConverter.INSTANCE);
+		converters.add(BigIntegerToStringConverter.INSTANCE);
+		converters.add(StringToBigIntegerConverter.INSTANCE);
+		converters.add(URLToStringConverter.INSTANCE);
+		converters.add(StringToURLConverter.INSTANCE);
+		converters.add(DBObjectToStringConverter.INSTANCE);
+		converters.add(TermToStringConverter.INSTANCE);
+		converters.add(NamedMongoScriptToDBObjectConverter.INSTANCE);
+		converters.add(DBObjectToNamedMongoScriptCoverter.INSTANCE);
+		converters.add(CurrencyToStringConverter.INSTANCE);
+		converters.add(StringToCurrencyConverter.INSTANCE);
+		converters.add(NumberToNumberConverterFactory.INSTANCE);
+
+		return converters;
 	}
 
 	/**
@@ -161,4 +204,174 @@ abstract class MongoConverters {
 			return source == null ? null : source.toString();
 		}
 	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.6
+	 */
+	@WritingConverter
+	public static enum TermToStringConverter implements Converter<Term, String> {
+
+		INSTANCE;
+
+		@Override
+		public String convert(Term source) {
+			return source == null ? null : source.getFormatted();
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	public static enum DBObjectToNamedMongoScriptCoverter implements Converter<DBObject, NamedMongoScript> {
+
+		INSTANCE;
+
+		@Override
+		public NamedMongoScript convert(DBObject source) {
+
+			if (source == null) {
+				return null;
+			}
+
+			String id = source.get("_id").toString();
+			Object rawValue = source.get("value");
+
+			return new NamedMongoScript(id, ((Code) rawValue).getCode());
+		}
+	}
+
+	/**
+	 * @author Christoph Strobl
+	 * @since 1.7
+	 */
+	public static enum NamedMongoScriptToDBObjectConverter implements Converter<NamedMongoScript, DBObject> {
+
+		INSTANCE;
+
+		@Override
+		public DBObject convert(NamedMongoScript source) {
+
+			if (source == null) {
+				return new BasicDBObject();
+			}
+
+			BasicDBObjectBuilder builder = new BasicDBObjectBuilder();
+
+			builder.append("_id", source.getName());
+			builder.append("value", new Code(source.getCode()));
+
+			return builder.get();
+		}
+	}
+
+	/**
+	 * {@link Converter} implementation converting {@link Currency} into its ISO 4217 {@link String} representation.
+	 * 
+	 * @author Christoph Strobl
+	 * @since 1.9
+	 */
+	@WritingConverter
+	public static enum CurrencyToStringConverter implements Converter<Currency, String> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public String convert(Currency source) {
+			return source == null ? null : source.getCurrencyCode();
+		}
+	}
+
+	/**
+	 * {@link Converter} implementation converting ISO 4217 {@link String} into {@link Currency}.
+	 * 
+	 * @author Christoph Strobl
+	 * @since 1.9
+	 */
+	@ReadingConverter
+	public static enum StringToCurrencyConverter implements Converter<String, Currency> {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public Currency convert(String source) {
+			return StringUtils.hasText(source) ? Currency.getInstance(source) : null;
+		}
+	}
+
+	/**
+	 * {@link ConverterFactory} implementation using {@link NumberUtils} for number conversion and parsing. Additionally
+	 * deals with {@link AtomicInteger} and {@link AtomicLong} by calling {@code get()} before performing the actual
+	 * conversion.
+	 * 
+	 * @author Christoph Strobl
+	 * @since 1.9
+	 */
+	@WritingConverter
+	public static enum NumberToNumberConverterFactory implements ConverterFactory<Number, Number>,ConditionalConverter {
+
+		INSTANCE;
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.ConverterFactory#getConverter(java.lang.Class)
+		 */
+		@Override
+		public <T extends Number> Converter<Number, T> getConverter(Class<T> targetType) {
+			return new NumberToNumberConverter<T>(targetType);
+		}
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.ConditionalConverter#matches(org.springframework.core.convert.TypeDescriptor, org.springframework.core.convert.TypeDescriptor)
+		 */
+		@Override
+		public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType) {
+			return !sourceType.equals(targetType);
+		}
+
+		private final static class NumberToNumberConverter<T extends Number> implements Converter<Number, T> {
+
+			private final Class<T> targetType;
+
+			/**
+			 * Creates a new {@link NumberToNumberConverter} for the given target type.
+			 * 
+			 * @param targetType must not be {@literal null}.
+			 */
+			public NumberToNumberConverter(Class<T> targetType) {
+				
+				Assert.notNull(targetType, "Target type must not be null!");
+				
+				this.targetType = targetType;
+			}
+
+			/*
+			 * (non-Javadoc)
+			 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+			 */
+			@Override
+			public T convert(Number source) {
+
+				if (source instanceof AtomicInteger) {
+					return NumberUtils.convertNumberToTargetClass(((AtomicInteger) source).get(), this.targetType);
+				}
+
+				if (source instanceof AtomicLong) {
+					return NumberUtils.convertNumberToTargetClass(((AtomicLong) source).get(), this.targetType);
+				}
+
+				return NumberUtils.convertNumberToTargetClass(source, this.targetType);
+			}
+		}
+	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/ObjectPath.java

@@ -0,0 +1,182 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
+import org.springframework.util.Assert;
+import org.springframework.util.StringUtils;
+
+import com.mongodb.DBObject;
+
+/**
+ * A path of objects nested into each other. The type allows access to all parent objects currently in creation even
+ * when resolving more nested objects. This allows to avoid re-resolving object instances that are logically equivalent
+ * to already resolved ones.
+ * <p>
+ * An immutable ordered set of target objects for {@link DBObject} to {@link Object} conversions. Object paths can be
+ * constructed by the {@link #toObjectPath(Object)} method and extended via {@link #push(Object)}.
+ * 
+ * @author Thomas Darimont
+ * @author Oliver Gierke
+ * @since 1.6
+ */
+class ObjectPath {
+
+	public static final ObjectPath ROOT = new ObjectPath();
+
+	private final List<ObjectPathItem> items;
+
+	private ObjectPath() {
+		this.items = Collections.emptyList();
+	}
+
+	/**
+	 * Creates a new {@link ObjectPath} from the given parent {@link ObjectPath} by adding the provided
+	 * {@link ObjectPathItem} to it.
+	 * 
+	 * @param parent can be {@literal null}.
+	 * @param item
+	 */
+	private ObjectPath(ObjectPath parent, ObjectPath.ObjectPathItem item) {
+
+		List<ObjectPath.ObjectPathItem> items = new ArrayList<ObjectPath.ObjectPathItem>(parent.items);
+		items.add(item);
+
+		this.items = Collections.unmodifiableList(items);
+	}
+
+	/**
+	 * Returns a copy of the {@link ObjectPath} with the given {@link Object} as current object.
+	 *
+	 * @param object must not be {@literal null}.
+	 * @param entity must not be {@literal null}.
+	 * @param id must not be {@literal null}.
+	 * @return
+	 */
+	public ObjectPath push(Object object, MongoPersistentEntity<?> entity, Object id) {
+
+		Assert.notNull(object, "Object must not be null!");
+		Assert.notNull(entity, "MongoPersistentEntity must not be null!");
+
+		ObjectPathItem item = new ObjectPathItem(object, id, entity.getCollection());
+		return new ObjectPath(this, item);
+	}
+
+	/**
+	 * Returns the object with the given id and stored in the given collection if it's contained in the {@link ObjectPath}
+	 * .
+	 * 
+	 * @param id must not be {@literal null}.
+	 * @param collection must not be {@literal null} or empty.
+	 * @return
+	 */
+	public Object getPathItem(Object id, String collection) {
+
+		Assert.notNull(id, "Id must not be null!");
+		Assert.hasText(collection, "Collection name must not be null!");
+
+		for (ObjectPathItem item : items) {
+
+			Object object = item.getObject();
+
+			if (object == null) {
+				continue;
+			}
+
+			if (item.getIdValue() == null) {
+				continue;
+			}
+
+			if (collection.equals(item.getCollection()) && id.equals(item.getIdValue())) {
+				return object;
+			}
+		}
+
+		return null;
+	}
+
+	/**
+	 * Returns the current object of the {@link ObjectPath} or {@literal null} if the path is empty.
+	 * 
+	 * @return
+	 */
+	public Object getCurrentObject() {
+		return items.isEmpty() ? null : items.get(items.size() - 1).getObject();
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
+	@Override
+	public String toString() {
+
+		if (items.isEmpty()) {
+			return "[empty]";
+		}
+
+		List<String> strings = new ArrayList<String>(items.size());
+
+		for (ObjectPathItem item : items) {
+			strings.add(item.object.toString());
+		}
+
+		return StringUtils.collectionToDelimitedString(strings, " -> ");
+	}
+
+	/**
+	 * An item in an {@link ObjectPath}.
+	 * 
+	 * @author Thomas Darimont
+	 * @author Oliver Gierke
+	 */
+	private static class ObjectPathItem {
+
+		private final Object object;
+		private final Object idValue;
+		private final String collection;
+
+		/**
+		 * Creates a new {@link ObjectPathItem}.
+		 * 
+		 * @param object
+		 * @param idValue
+		 * @param collection
+		 */
+		ObjectPathItem(Object object, Object idValue, String collection) {
+
+			this.object = object;
+			this.idValue = idValue;
+			this.collection = collection;
+		}
+
+		public Object getObject() {
+			return object;
+		}
+
+		public Object getIdValue() {
+			return idValue;
+		}
+
+		public String getCollection() {
+			return collection;
+		}
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/QueryMapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2013 the original author or authors.
+ * Copyright 2011-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,20 +17,30 @@ package org.springframework.data.mongodb.core.convert;
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
+import java.util.Iterator;
 import java.util.List;
+import java.util.Map.Entry;
 import java.util.Set;
 
 import org.bson.types.ObjectId;
 import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.ConversionService;
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.data.mapping.Association;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PropertyPath;
 import org.springframework.data.mapping.PropertyReferenceException;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mapping.context.PersistentPropertyPath;
+import org.springframework.data.mapping.model.MappingException;
+import org.springframework.data.mongodb.core.convert.MappingMongoConverter.NestedDocument;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty.PropertyToFieldNameConverter;
 import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
 import org.springframework.util.Assert;
 
 import com.mongodb.BasicDBList;
@@ -44,10 +54,18 @@ import com.mongodb.DBRef;
  * @author Jon Brisbin
  * @author Oliver Gierke
  * @author Patryk Wasik
+ * @author Thomas Darimont
+ * @author Christoph Strobl
  */
 public class QueryMapper {
 
 	private static final List<String> DEFAULT_ID_NAMES = Arrays.asList("id", "_id");
+	private static final DBObject META_TEXT_SCORE = new BasicDBObject("$meta", "textScore");
+	static final ClassTypeInformation<?> NESTED_DOCUMENT = ClassTypeInformation.from(NestedDocument.class);
+
+	private enum MetaMapping {
+		FORCE, WHEN_PRESENT, IGNORE;
+	}
 
 	private final ConversionService conversionService;
 	private final MongoConverter converter;
@@ -101,22 +119,103 @@ public class QueryMapper {
 				continue;
 			}
 
-			Field field = entity == null ? new Field(key) : new MetadataBackedField(key, entity, mappingContext);
+			Field field = createPropertyField(entity, key, mappingContext);
+			Entry<String, Object> entry = getMappedObjectForField(field, query.get(key));
 
-			Object rawValue = query.get(key);
-			String newKey = field.getMappedKey();
-
-			if (isNestedKeyword(rawValue) && !field.isIdField()) {
-				Keyword keyword = new Keyword((DBObject) rawValue);
-				result.put(newKey, getMappedKeyword(field, keyword));
-			} else {
-				result.put(newKey, getMappedValue(field, rawValue));
-			}
+			result.put(entry.getKey(), entry.getValue());
 		}
 
 		return result;
 	}
 
+	/**
+	 * Maps fields used for sorting to the {@link MongoPersistentEntity}s properties. <br />
+	 * Also converts properties to their {@code $meta} representation if present.
+	 * 
+	 * @param sortObject
+	 * @param entity
+	 * @return
+	 * @since 1.6
+	 */
+	public DBObject getMappedSort(DBObject sortObject, MongoPersistentEntity<?> entity) {
+
+		if (sortObject == null) {
+			return null;
+		}
+
+		DBObject mappedSort = getMappedObject(sortObject, entity);
+		mapMetaAttributes(mappedSort, entity, MetaMapping.WHEN_PRESENT);
+		return mappedSort;
+	}
+
+	/**
+	 * Maps fields to retrieve to the {@link MongoPersistentEntity}s properties. <br />
+	 * Also onverts and potentially adds missing property {@code $meta} representation.
+	 * 
+	 * @param fieldsObject
+	 * @param entity
+	 * @return
+	 * @since 1.6
+	 */
+	public DBObject getMappedFields(DBObject fieldsObject, MongoPersistentEntity<?> entity) {
+
+		DBObject mappedFields = fieldsObject != null ? getMappedObject(fieldsObject, entity) : new BasicDBObject();
+		mapMetaAttributes(mappedFields, entity, MetaMapping.FORCE);
+		return mappedFields.keySet().isEmpty() ? null : mappedFields;
+	}
+
+	private void mapMetaAttributes(DBObject source, MongoPersistentEntity<?> entity, MetaMapping metaMapping) {
+
+		if (entity == null || source == null) {
+			return;
+		}
+
+		if (entity.hasTextScoreProperty() && !MetaMapping.IGNORE.equals(metaMapping)) {
+			MongoPersistentProperty textScoreProperty = entity.getTextScoreProperty();
+			if (MetaMapping.FORCE.equals(metaMapping)
+					|| (MetaMapping.WHEN_PRESENT.equals(metaMapping) && source.containsField(textScoreProperty.getFieldName()))) {
+				source.putAll(getMappedTextScoreField(textScoreProperty));
+			}
+		}
+	}
+
+	private DBObject getMappedTextScoreField(MongoPersistentProperty property) {
+		return new BasicDBObject(property.getFieldName(), META_TEXT_SCORE);
+	}
+
+	/**
+	 * Extracts the mapped object value for given field out of rawValue taking nested {@link Keyword}s into account
+	 * 
+	 * @param field
+	 * @param rawValue
+	 * @return
+	 */
+	protected Entry<String, Object> getMappedObjectForField(Field field, Object rawValue) {
+
+		String key = field.getMappedKey();
+		Object value;
+
+		if (isNestedKeyword(rawValue) && !field.isIdField()) {
+			Keyword keyword = new Keyword((DBObject) rawValue);
+			value = getMappedKeyword(field, keyword);
+		} else {
+			value = getMappedValue(field, rawValue);
+		}
+
+		return createMapEntry(key, value);
+	}
+
+	/**
+	 * @param entity
+	 * @param key
+	 * @param mappingContext
+	 * @return
+	 */
+	protected Field createPropertyField(MongoPersistentEntity<?> entity, String key,
+			MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext) {
+		return entity == null ? new Field(key) : new MetadataBackedField(key, entity, mappingContext);
+	}
+
 	/**
 	 * Returns the given {@link DBObject} representing a keyword by mapping the keyword's value.
 	 * 
@@ -124,16 +223,16 @@ public class QueryMapper {
 	 * @param entity
 	 * @return
 	 */
-	private DBObject getMappedKeyword(Keyword keyword, MongoPersistentEntity<?> entity) {
+	protected DBObject getMappedKeyword(Keyword keyword, MongoPersistentEntity<?> entity) {
 
 		// $or/$nor
-		if (keyword.isOrOrNor() || keyword.hasIterableValue()) {
+		if (keyword.isOrOrNor() || (keyword.hasIterableValue() && !keyword.isGeometry())) {
 
 			Iterable<?> conditions = keyword.getValue();
 			BasicDBList newConditions = new BasicDBList();
 
 			for (Object condition : conditions) {
-				newConditions.add(condition instanceof DBObject ? getMappedObject((DBObject) condition, entity)
+				newConditions.add(isDBObject(condition) ? getMappedObject((DBObject) condition, entity)
 						: convertSimpleOrDBObject(condition, entity));
 			}
 
@@ -150,12 +249,12 @@ public class QueryMapper {
 	 * @param keyword
 	 * @return
 	 */
-	private DBObject getMappedKeyword(Field property, Keyword keyword) {
+	protected DBObject getMappedKeyword(Field property, Keyword keyword) {
 
 		boolean needsAssociationConversion = property.isAssociation() && !keyword.isExists();
 		Object value = keyword.getValue();
 
-		Object convertedValue = needsAssociationConversion ? convertAssociation(value, property.getProperty())
+		Object convertedValue = needsAssociationConversion ? convertAssociation(value, property)
 				: getMappedValue(property.with(keyword.getKey()), value);
 
 		return new BasicDBObject(keyword.key, convertedValue);
@@ -170,26 +269,28 @@ public class QueryMapper {
 	 * @param newKey the key the value will be bound to eventually
 	 * @return
 	 */
-	private Object getMappedValue(Field documentField, Object value) {
+	protected Object getMappedValue(Field documentField, Object value) {
 
 		if (documentField.isIdField()) {
 
-			if (value instanceof DBObject) {
+			if (isDBObject(value)) {
 				DBObject valueDbo = (DBObject) value;
+				DBObject resultDbo = new BasicDBObject(valueDbo.toMap());
+
 				if (valueDbo.containsField("$in") || valueDbo.containsField("$nin")) {
 					String inKey = valueDbo.containsField("$in") ? "$in" : "$nin";
 					List<Object> ids = new ArrayList<Object>();
 					for (Object id : (Iterable<?>) valueDbo.get(inKey)) {
 						ids.add(convertId(id));
 					}
-					valueDbo.put(inKey, ids.toArray(new Object[ids.size()]));
+					resultDbo.put(inKey, ids.toArray(new Object[ids.size()]));
 				} else if (valueDbo.containsField("$ne")) {
-					valueDbo.put("$ne", convertId(valueDbo.get("$ne")));
+					resultDbo.put("$ne", convertId(valueDbo.get("$ne")));
 				} else {
-					return getMappedObject((DBObject) value, null);
+					return getMappedObject(resultDbo, null);
 				}
 
-				return valueDbo;
+				return resultDbo;
 
 			} else {
 				return convertId(value);
@@ -200,13 +301,47 @@ public class QueryMapper {
 			return getMappedKeyword(new Keyword((DBObject) value), null);
 		}
 
-		if (documentField.isAssociation()) {
-			return convertAssociation(value, documentField.getProperty());
+		if (isAssociationConversionNecessary(documentField, value)) {
+			return convertAssociation(value, documentField);
 		}
 
 		return convertSimpleOrDBObject(value, documentField.getPropertyEntity());
 	}
 
+	/**
+	 * Returns whether the given {@link Field} represents an association reference that together with the given value
+	 * requires conversion to a {@link org.springframework.data.mongodb.core.mapping.DBRef} object. We check whether the
+	 * type of the given value is compatible with the type of the given document field in order to deal with potential
+	 * query field exclusions, since MongoDB uses the {@code int} {@literal 0} as an indicator for an excluded field.
+	 * 
+	 * @param documentField must not be {@literal null}.
+	 * @param value
+	 * @return
+	 */
+	protected boolean isAssociationConversionNecessary(Field documentField, Object value) {
+
+		Assert.notNull(documentField, "Document field must not be null!");
+
+		if (value == null) {
+			return false;
+		}
+
+		if (!documentField.isAssociation()) {
+			return false;
+		}
+
+		Class<? extends Object> type = value.getClass();
+		MongoPersistentProperty property = documentField.getProperty();
+
+		if (property.getActualType().isAssignableFrom(type)) {
+			return true;
+		}
+
+		MongoPersistentEntity<?> entity = documentField.getPropertyEntity();
+		return entity.hasIdProperty()
+				&& (type.equals(DBRef.class) || entity.getIdProperty().getActualType().isAssignableFrom(type));
+	}
+
 	/**
 	 * Retriggers mapping if the given source is a {@link DBObject} or simply invokes the
 	 * 
@@ -214,13 +349,13 @@ public class QueryMapper {
 	 * @param entity
 	 * @return
 	 */
-	private Object convertSimpleOrDBObject(Object source, MongoPersistentEntity<?> entity) {
+	protected Object convertSimpleOrDBObject(Object source, MongoPersistentEntity<?> entity) {
 
 		if (source instanceof BasicDBList) {
 			return delegateConvertToMongoType(source, entity);
 		}
 
-		if (source instanceof DBObject) {
+		if (isDBObject(source)) {
 			return getMappedObject((DBObject) source, entity);
 		}
 
@@ -236,7 +371,11 @@ public class QueryMapper {
 	 * @return the converted mongo type or null if source is null
 	 */
 	protected Object delegateConvertToMongoType(Object source, MongoPersistentEntity<?> entity) {
-		return converter.convertToMongoType(source);
+		return converter.convertToMongoType(source, entity == null ? null : entity.getTypeInformation());
+	}
+
+	protected Object convertAssociation(Object source, Field field) {
+		return convertAssociation(source, field.getProperty());
 	}
 
 	/**
@@ -246,16 +385,22 @@ public class QueryMapper {
 	 * @param property
 	 * @return
 	 */
-	private Object convertAssociation(Object source, MongoPersistentProperty property) {
+	protected Object convertAssociation(Object source, MongoPersistentProperty property) {
 
-		if (property == null || !property.isAssociation()) {
+		if (property == null || source == null || source instanceof DBObject) {
 			return source;
 		}
 
+		if (source instanceof DBRef) {
+
+			DBRef ref = (DBRef) source;
+			return new DBRef(ref.getCollectionName(), convertId(ref.getId()));
+		}
+
 		if (source instanceof Iterable) {
 			BasicDBList result = new BasicDBList();
 			for (Object element : (Iterable<?>) source) {
-				result.add(element instanceof DBRef ? element : converter.toDBRef(element, property));
+				result.add(createDbRefFor(element, property));
 			}
 			return result;
 		}
@@ -264,13 +409,55 @@ public class QueryMapper {
 			BasicDBObject result = new BasicDBObject();
 			DBObject dbObject = (DBObject) source;
 			for (String key : dbObject.keySet()) {
-				Object o = dbObject.get(key);
-				result.put(key, o instanceof DBRef ? o : converter.toDBRef(o, property));
+				result.put(key, createDbRefFor(dbObject.get(key), property));
 			}
 			return result;
 		}
 
-		return source == null || source instanceof DBRef ? source : converter.toDBRef(source, property);
+		return createDbRefFor(source, property);
+	}
+
+	/**
+	 * Checks whether the given value is a {@link DBObject}.
+	 * 
+	 * @param value can be {@literal null}.
+	 * @return
+	 */
+	protected final boolean isDBObject(Object value) {
+		return value instanceof DBObject;
+	}
+
+	/**
+	 * Creates a new {@link Entry} for the given {@link Field} with the given value.
+	 * 
+	 * @param field must not be {@literal null}.
+	 * @param value can be {@literal null}.
+	 * @return
+	 */
+	protected final Entry<String, Object> createMapEntry(Field field, Object value) {
+		return createMapEntry(field.getMappedKey(), value);
+	}
+
+	/**
+	 * Creates a new {@link Entry} with the given key and value.
+	 * 
+	 * @param key must not be {@literal null} or empty.
+	 * @param value can be {@literal null}
+	 * @return
+	 */
+	private Entry<String, Object> createMapEntry(String key, Object value) {
+
+		Assert.hasText(key, "Key must not be null or empty!");
+		return Collections.singletonMap(key, value).entrySet().iterator().next();
+	}
+
+	private DBRef createDbRefFor(Object source, MongoPersistentProperty property) {
+
+		if (source instanceof DBRef) {
+			return (DBRef) source;
+		}
+
+		return converter.toDBRef(source, property);
 	}
 
 	/**
@@ -281,13 +468,20 @@ public class QueryMapper {
 	 */
 	public Object convertId(Object id) {
 
-		try {
-			return conversionService.convert(id, ObjectId.class);
-		} catch (ConversionException e) {
-			// Ignore
+		if (id == null) {
+			return null;
 		}
 
-		return delegateConvertToMongoType(id, null);
+		if (id instanceof String) {
+			return ObjectId.isValid(id.toString()) ? conversionService.convert(id, ObjectId.class) : id;
+		}
+
+		try {
+			return conversionService.canConvert(id.getClass(), ObjectId.class) ? conversionService.convert(id, ObjectId.class)
+					: delegateConvertToMongoType(id, null);
+		} catch (ConversionException o_O) {
+			return delegateConvertToMongoType(id, null);
+		}
 	}
 
 	/**
@@ -328,7 +522,7 @@ public class QueryMapper {
 	 * 
 	 * @author Oliver Gierke
 	 */
-	private static class Keyword {
+	static class Keyword {
 
 		private static final String N_OR_PATTERN = "\\$.*or";
 
@@ -362,6 +556,16 @@ public class QueryMapper {
 			return key.matches(N_OR_PATTERN);
 		}
 
+		/**
+		 * Returns whether the current keyword is the {@code $geometry} keyword.
+		 * 
+		 * @return
+		 * @since 1.8
+		 */
+		public boolean isGeometry() {
+			return "$geometry".equalsIgnoreCase(key);
+		}
+
 		public boolean hasIterableValue() {
 			return value instanceof Iterable;
 		}
@@ -381,7 +585,7 @@ public class QueryMapper {
 	 * 
 	 * @author Oliver Gierke
 	 */
-	private static class Field {
+	protected static class Field {
 
 		private static final String ID_KEY = "_id";
 
@@ -418,7 +622,9 @@ public class QueryMapper {
 		}
 
 		/**
-		 * Returns the underlying {@link MongoPersistentProperty} backing the field.
+		 * Returns the underlying {@link MongoPersistentProperty} backing the field. For path traversals this will be the
+		 * property that represents the value to handle. This means it'll be the leaf property for plain paths or the
+		 * association property in case we refer to an association somewhere in the path.
 		 * 
 		 * @return
 		 */
@@ -452,18 +658,40 @@ public class QueryMapper {
 		public String getMappedKey() {
 			return isIdField() ? ID_KEY : name;
 		}
+
+		/**
+		 * Returns whether the field references an association in case it refers to a nested field.
+		 * 
+		 * @return
+		 */
+		public boolean containsAssociation() {
+			return false;
+		}
+
+		public Association<MongoPersistentProperty> getAssociation() {
+			return null;
+		}
+
+		public TypeInformation<?> getTypeHint() {
+			return ClassTypeInformation.OBJECT;
+		}
 	}
 
 	/**
 	 * Extension of {@link DocumentField} to be backed with mapping metadata.
 	 * 
 	 * @author Oliver Gierke
+	 * @author Thomas Darimont
 	 */
-	private static class MetadataBackedField extends Field {
+	protected static class MetadataBackedField extends Field {
+
+		private static final String INVALID_ASSOCIATION_REFERENCE = "Invalid path reference %s! Associations can only be pointed to directly or via their id property!";
 
 		private final MongoPersistentEntity<?> entity;
 		private final MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext;
 		private final MongoPersistentProperty property;
+		private final PersistentPropertyPath<MongoPersistentProperty> path;
+		private final Association<MongoPersistentProperty> association;
 
 		/**
 		 * Creates a new {@link MetadataBackedField} with the given name, {@link MongoPersistentEntity} and
@@ -475,6 +703,21 @@ public class QueryMapper {
 		 */
 		public MetadataBackedField(String name, MongoPersistentEntity<?> entity,
 				MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> context) {
+			this(name, entity, context, null);
+		}
+
+		/**
+		 * Creates a new {@link MetadataBackedField} with the given name, {@link MongoPersistentEntity} and
+		 * {@link MappingContext} with the given {@link MongoPersistentProperty}.
+		 * 
+		 * @param name must not be {@literal null} or empty.
+		 * @param entity must not be {@literal null}.
+		 * @param context must not be {@literal null}.
+		 * @param property may be {@literal null}.
+		 */
+		public MetadataBackedField(String name, MongoPersistentEntity<?> entity,
+				MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> context,
+				MongoPersistentProperty property) {
 
 			super(name);
 
@@ -483,8 +726,9 @@ public class QueryMapper {
 			this.entity = entity;
 			this.mappingContext = context;
 
-			PersistentPropertyPath<MongoPersistentProperty> path = getPath(name);
-			this.property = path == null ? null : path.getLeafProperty();
+			this.path = getPath(name);
+			this.property = path == null ? property : path.getLeafProperty();
+			this.association = findAssociation();
 		}
 
 		/*
@@ -493,7 +737,7 @@ public class QueryMapper {
 		 */
 		@Override
 		public MetadataBackedField with(String name) {
-			return new MetadataBackedField(name, entity, mappingContext);
+			return new MetadataBackedField(name, entity, mappingContext, property);
 		}
 
 		/*
@@ -518,7 +762,7 @@ public class QueryMapper {
 		 */
 		@Override
 		public MongoPersistentProperty getProperty() {
-			return property;
+			return association == null ? property : association.getInverse();
 		}
 
 		/* 
@@ -537,9 +781,34 @@ public class QueryMapper {
 		 */
 		@Override
 		public boolean isAssociation() {
+			return association != null;
+		}
 
-			MongoPersistentProperty property = getProperty();
-			return property == null ? false : property.isAssociation();
+		/* 
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.convert.QueryMapper.Field#getAssociation()
+		 */
+		@Override
+		public Association<MongoPersistentProperty> getAssociation() {
+			return association;
+		}
+
+		/**
+		 * Finds the association property in the {@link PersistentPropertyPath}.
+		 * 
+		 * @return
+		 */
+		private final Association<MongoPersistentProperty> findAssociation() {
+
+			if (this.path != null) {
+				for (MongoPersistentProperty p : this.path) {
+					if (p.isAssociation()) {
+						return p.getAssociation();
+					}
+				}
+			}
+
+			return null;
 		}
 
 		/*
@@ -548,19 +817,206 @@ public class QueryMapper {
 		 */
 		@Override
 		public String getMappedKey() {
-
-			PersistentPropertyPath<MongoPersistentProperty> path = getPath(name);
-			return path == null ? name : path.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE);
+			return path == null ? name : path.toDotPath(isAssociation() ? getAssociationConverter() : getPropertyConverter());
 		}
 
-		private PersistentPropertyPath<MongoPersistentProperty> getPath(String name) {
+		protected PersistentPropertyPath<MongoPersistentProperty> getPath() {
+			return path;
+		}
+
+		/**
+		 * Returns the {@link PersistentPropertyPath} for the given <code>pathExpression</code>.
+		 * 
+		 * @param pathExpression
+		 * @return
+		 */
+		private PersistentPropertyPath<MongoPersistentProperty> getPath(String pathExpression) {
 
 			try {
-				PropertyPath path = PropertyPath.from(name, entity.getTypeInformation());
-				return mappingContext.getPersistentPropertyPath(path);
+
+				PropertyPath path = PropertyPath.from(pathExpression.replaceAll("\\.\\d", ""), entity.getTypeInformation());
+				PersistentPropertyPath<MongoPersistentProperty> propertyPath = mappingContext.getPersistentPropertyPath(path);
+
+				Iterator<MongoPersistentProperty> iterator = propertyPath.iterator();
+				boolean associationDetected = false;
+
+				while (iterator.hasNext()) {
+
+					MongoPersistentProperty property = iterator.next();
+
+					if (property.isAssociation()) {
+						associationDetected = true;
+						continue;
+					}
+
+					if (associationDetected && !property.isIdProperty()) {
+						throw new MappingException(String.format(INVALID_ASSOCIATION_REFERENCE, pathExpression));
+					}
+				}
+
+				return propertyPath;
 			} catch (PropertyReferenceException e) {
 				return null;
 			}
 		}
+
+		/**
+		 * Return the {@link Converter} to be used to created the mapped key. Default implementation will use
+		 * {@link PropertyToFieldNameConverter}.
+		 * 
+		 * @return
+		 */
+		protected Converter<MongoPersistentProperty, String> getPropertyConverter() {
+			return new PositionParameterRetainingPropertyKeyConverter(name);
+		}
+
+		/**
+		 * Return the {@link Converter} to use for creating the mapped key of an association. Default implementation is
+		 * {@link AssociationConverter}.
+		 * 
+		 * @return
+		 * @since 1.7
+		 */
+		protected Converter<MongoPersistentProperty, String> getAssociationConverter() {
+			return new AssociationConverter(getAssociation());
+		}
+
+		/**
+		 * @author Christoph Strobl
+		 * @since 1.8
+		 */
+		static class PositionParameterRetainingPropertyKeyConverter implements Converter<MongoPersistentProperty, String> {
+
+			private final KeyMapper keyMapper;
+
+			public PositionParameterRetainingPropertyKeyConverter(String rawKey) {
+				this.keyMapper = new KeyMapper(rawKey);
+			}
+
+			/*
+			 * (non-Javadoc)
+			 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+			 */
+			@Override
+			public String convert(MongoPersistentProperty source) {
+				return keyMapper.mapPropertyName(source);
+			}
+		}
+
+		/* 
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.convert.QueryMapper.Field#getTypeHint()
+		 */
+		@Override
+		public TypeInformation<?> getTypeHint() {
+
+			MongoPersistentProperty property = getProperty();
+
+			if (property == null) {
+				return super.getTypeHint();
+			}
+
+			if (property.getActualType().isInterface()
+					|| java.lang.reflect.Modifier.isAbstract(property.getActualType().getModifiers())) {
+				return ClassTypeInformation.OBJECT;
+			}
+
+			return NESTED_DOCUMENT;
+		}
+
+		/**
+		 * @author Christoph Strobl
+		 * @since 1.8
+		 */
+		static class KeyMapper {
+
+			private final Iterator<String> iterator;
+
+			public KeyMapper(String key) {
+
+				this.iterator = Arrays.asList(key.split("\\.")).iterator();
+				this.iterator.next();
+			}
+
+			/**
+			 * Maps the property name while retaining potential positional operator {@literal $}.
+			 * 
+			 * @param property
+			 * @return
+			 */
+			protected String mapPropertyName(MongoPersistentProperty property) {
+
+				StringBuilder mappedName = new StringBuilder(PropertyToFieldNameConverter.INSTANCE.convert(property));
+				boolean inspect = iterator.hasNext();
+
+				while (inspect) {
+
+					String partial = iterator.next();
+					boolean isPositional = (isPositionalParameter(partial) && (property.isMap() || property.isCollectionLike()));
+
+					if (isPositional) {
+						mappedName.append(".").append(partial);
+					}
+
+					inspect = isPositional && iterator.hasNext();
+				}
+
+				return mappedName.toString();
+			}
+
+			private static boolean isPositionalParameter(String partial) {
+
+				if ("$".equals(partial)) {
+					return true;
+				}
+
+				try {
+					Long.valueOf(partial);
+					return true;
+				} catch (NumberFormatException e) {
+					return false;
+				}
+			}
+		}
+	}
+
+	/**
+	 * Converter to skip all properties after an association property was rendered.
+	 * 
+	 * @author Oliver Gierke
+	 */
+	protected static class AssociationConverter implements Converter<MongoPersistentProperty, String> {
+
+		private final MongoPersistentProperty property;
+		private boolean associationFound;
+
+		/**
+		 * Creates a new {@link AssociationConverter} for the given {@link Association}.
+		 * 
+		 * @param association must not be {@literal null}.
+		 */
+		public AssociationConverter(Association<MongoPersistentProperty> association) {
+
+			Assert.notNull(association, "Association must not be null!");
+			this.property = association.getInverse();
+		}
+
+		/* 
+		 * (non-Javadoc)
+		 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+		 */
+		@Override
+		public String convert(MongoPersistentProperty source) {
+
+			if (associationFound) {
+				return null;
+			}
+
+			if (property.equals(source)) {
+				associationFound = true;
+			}
+
+			return source.getFieldName();
+		}
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/ReflectiveDBRefResolver.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import static org.springframework.data.mongodb.util.MongoClientVersion.*;
+import static org.springframework.util.ReflectionUtils.*;
+
+import java.lang.reflect.Method;
+
+import org.springframework.data.mongodb.MongoDbFactory;
+import org.springframework.util.Assert;
+
+import com.mongodb.DBCollection;
+import com.mongodb.DBObject;
+import com.mongodb.DBRef;
+
+/**
+ * {@link ReflectiveDBRefResolver} provides reflective access to {@link DBRef} API that is not consistently available
+ * for various driver versions.
+ * 
+ * @author Christoph Strobl
+ * @author Oliver Gierke
+ * @since 1.7
+ */
+class ReflectiveDBRefResolver {
+
+	private static final Method FETCH_METHOD;
+
+	static {
+		FETCH_METHOD = findMethod(DBRef.class, "fetch");
+	}
+
+	/**
+	 * Fetches the object referenced from the database either be directly calling {@link DBRef#fetch()} or
+	 * {@link DBCollection#findOne(Object)}.
+	 *
+	 * @param db can be {@literal null} when using MongoDB Java driver in version 2.x.
+	 * @param ref must not be {@literal null}.
+	 * @return the document that this references.
+	 */
+	public static DBObject fetch(MongoDbFactory factory, DBRef ref) {
+
+		Assert.notNull(ref, "DBRef to fetch must not be null!");
+
+		if (isMongo3Driver()) {
+
+			Assert.notNull(factory, "DbFactory to fetch DB from must not be null!");
+			return factory.getDb().getCollection(ref.getCollectionName()).findOne(ref.getId());
+		}
+
+		return (DBObject) invokeMethod(FETCH_METHOD, ref);
+	}
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/UpdateMapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 the original author or authors.
+ * Copyright 2013-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,16 +15,32 @@
  */
 package org.springframework.data.mongodb.core.convert;
 
+import java.util.Map.Entry;
+
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.data.mapping.Association;
+import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.mongodb.core.query.Update.Modifier;
+import org.springframework.data.mongodb.core.query.Update.Modifiers;
+import org.springframework.data.util.ClassTypeInformation;
+import org.springframework.data.util.TypeInformation;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
 
 /**
  * A subclass of {@link QueryMapper} that retains type information on the mongo types.
  * 
  * @author Thomas Darimont
+ * @author Oliver Gierke
+ * @author Christoph Strobl
  */
 public class UpdateMapper extends QueryMapper {
 
-	private final MongoWriter<?> converter;
+	private final MongoConverter converter;
 
 	/**
 	 * Creates a new {@link UpdateMapper} using the given {@link MongoConverter}.
@@ -46,7 +62,193 @@ public class UpdateMapper extends QueryMapper {
 	 */
 	@Override
 	protected Object delegateConvertToMongoType(Object source, MongoPersistentEntity<?> entity) {
-		return entity == null ? super.delegateConvertToMongoType(source, null) : converter.convertToMongoType(source,
-				entity.getTypeInformation());
+		return converter.convertToMongoType(source,
+				entity == null ? ClassTypeInformation.OBJECT : getTypeHintForEntity(source, entity));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.QueryMapper#getMappedObjectForField(org.springframework.data.mongodb.core.convert.QueryMapper.Field, java.lang.Object)
+	 */
+	@Override
+	protected Entry<String, Object> getMappedObjectForField(Field field, Object rawValue) {
+
+		if (isDBObject(rawValue)) {
+			return createMapEntry(field, convertSimpleOrDBObject(rawValue, field.getPropertyEntity()));
+		}
+
+		if (isQuery(rawValue)) {
+			return createMapEntry(field,
+					super.getMappedObject(((Query) rawValue).getQueryObject(), field.getPropertyEntity()));
+		}
+
+		if (isUpdateModifier(rawValue)) {
+			return getMappedUpdateModifier(field, rawValue);
+		}
+
+		return super.getMappedObjectForField(field, rawValue);
+	}
+
+	private Entry<String, Object> getMappedUpdateModifier(Field field, Object rawValue) {
+		Object value = null;
+
+		if (rawValue instanceof Modifier) {
+
+			value = getMappedValue(field, (Modifier) rawValue);
+
+		} else if (rawValue instanceof Modifiers) {
+
+			DBObject modificationOperations = new BasicDBObject();
+
+			for (Modifier modifier : ((Modifiers) rawValue).getModifiers()) {
+				modificationOperations.putAll(getMappedValue(field, modifier).toMap());
+			}
+
+			value = modificationOperations;
+		} else {
+			throw new IllegalArgumentException(String.format("Unable to map value of type '%s'!", rawValue.getClass()));
+		}
+
+		return createMapEntry(field, value);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.QueryMapper#isAssociationConversionNecessary(org.springframework.data.mongodb.core.convert.QueryMapper.Field, java.lang.Object)
+	 */
+	@Override
+	protected boolean isAssociationConversionNecessary(Field documentField, Object value) {
+		return super.isAssociationConversionNecessary(documentField, value) || documentField.containsAssociation();
+	}
+
+	private boolean isUpdateModifier(Object value) {
+		return value instanceof Modifier || value instanceof Modifiers;
+	}
+
+	private boolean isQuery(Object value) {
+		return value instanceof Query;
+	}
+
+	private DBObject getMappedValue(Field field, Modifier modifier) {
+
+		TypeInformation<?> typeHint = field == null ? ClassTypeInformation.OBJECT : field.getTypeHint();
+
+		Object value = converter.convertToMongoType(modifier.getValue(), typeHint);
+		return new BasicDBObject(modifier.getKey(), value);
+	}
+
+	private TypeInformation<?> getTypeHintForEntity(Object source, MongoPersistentEntity<?> entity) {
+
+		TypeInformation<?> info = entity.getTypeInformation();
+		Class<?> type = info.getActualType().getType();
+
+		if (source == null || type.isInterface() || java.lang.reflect.Modifier.isAbstract(type.getModifiers())) {
+			return info;
+		}
+
+		if (!type.equals(source.getClass())) {
+			return info;
+		}
+
+		return NESTED_DOCUMENT;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.QueryMapper#createPropertyField(org.springframework.data.mongodb.core.mapping.MongoPersistentEntity, java.lang.String, org.springframework.data.mapping.context.MappingContext)
+	 */
+	@Override
+	protected Field createPropertyField(MongoPersistentEntity<?> entity, String key,
+			MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext) {
+
+		return entity == null ? super.createPropertyField(entity, key, mappingContext)
+				: new MetadataBackedUpdateField(entity, key, mappingContext);
+	}
+
+	/**
+	 * {@link MetadataBackedField} that handles {@literal $} paths inside a field key. We clean up an update key
+	 * containing a {@literal $} before handing it to the super class to make sure property lookups and transformations
+	 * continue to work as expected. We provide a custom property converter to re-applied the cleaned up {@literal $}s
+	 * when constructing the mapped key.
+	 * 
+	 * @author Thomas Darimont
+	 * @author Oliver Gierke
+	 */
+	private static class MetadataBackedUpdateField extends MetadataBackedField {
+
+		private final String key;
+
+		/**
+		 * Creates a new {@link MetadataBackedField} with the given {@link MongoPersistentEntity}, key and
+		 * {@link MappingContext}. We clean up the key before handing it up to the super class to make sure it continues to
+		 * work as expected.
+		 * 
+		 * @param entity must not be {@literal null}.
+		 * @param key must not be {@literal null} or empty.
+		 * @param mappingContext must not be {@literal null}.
+		 */
+		public MetadataBackedUpdateField(MongoPersistentEntity<?> entity, String key,
+				MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext) {
+
+			super(key.replaceAll("\\.\\$", ""), entity, mappingContext);
+			this.key = key;
+		}
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.convert.QueryMapper.MetadataBackedField#getMappedKey()
+		 */
+		@Override
+		public String getMappedKey() {
+			return this.getPath() == null ? key : super.getMappedKey();
+		}
+
+		/* 
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.convert.QueryMapper.MetadataBackedField#getPropertyConverter()
+		 */
+		@Override
+		protected Converter<MongoPersistentProperty, String> getPropertyConverter() {
+			return new PositionParameterRetainingPropertyKeyConverter(key);
+		}
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.convert.QueryMapper.MetadataBackedField#getAssociationConverter()
+		 */
+		@Override
+		protected Converter<MongoPersistentProperty, String> getAssociationConverter() {
+			return new UpdateAssociationConverter(getAssociation(), key);
+		}
+
+		/**
+		 * {@link Converter} retaining positional parameter {@literal $} for {@link Association}s.
+		 * 
+		 * @author Christoph Strobl
+		 */
+		protected static class UpdateAssociationConverter extends AssociationConverter {
+
+			private final KeyMapper mapper;
+
+			/**
+			 * Creates a new {@link AssociationConverter} for the given {@link Association}.
+			 * 
+			 * @param association must not be {@literal null}.
+			 */
+			public UpdateAssociationConverter(Association<MongoPersistentProperty> association, String key) {
+
+				super(association);
+				this.mapper = new KeyMapper(key);
+			}
+
+			/* 
+			 * (non-Javadoc)
+			 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+			 */
+			@Override
+			public String convert(MongoPersistentProperty source) {
+				return super.convert(source) == null ? null : mapper.mapPropertyName(source);
+			}
+		}
 	}
 }

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/ValueResolver.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2014 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.core.convert;
+
+import org.springframework.data.mapping.model.SpELExpressionEvaluator;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+
+import com.mongodb.DBObject;
+
+/**
+ * Internal API to trigger the resolution of properties.
+ * 
+ * @author Oliver Gierke
+ */
+interface ValueResolver {
+
+	/**
+	 * Resolves the value for the given {@link MongoPersistentProperty} within the given {@link DBObject} using the given
+	 * {@link SpELExpressionEvaluator} and {@link ObjectPath}.
+	 * 
+	 * @param prop
+	 * @param dbo
+	 * @param evaluator
+	 * @param parent
+	 * @return
+	 */
+	Object getValueInternal(MongoPersistentProperty prop, DBObject dbo, SpELExpressionEvaluator evaluator,
+			ObjectPath parent);
+}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Box.java

@@ -1,106 +0,0 @@
-/*
- * Copyright 2010-2011 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb.core.geo;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import org.springframework.data.mongodb.core.mapping.Field;
-import org.springframework.util.Assert;
-
-/**
- * Represents a geospatial box value
- * 
- * @author Mark Pollack
- * @author Oliver Gierke
- */
-public class Box implements Shape {
-
-	@Field(order = 10)
-	private final Point first;
-	@Field(order = 20)
-	private final Point second;
-
-	public Box(Point lowerLeft, Point upperRight) {
-		Assert.notNull(lowerLeft);
-		Assert.notNull(upperRight);
-		this.first = lowerLeft;
-		this.second = upperRight;
-	}
-
-	public Box(double[] lowerLeft, double[] upperRight) {
-		Assert.isTrue(lowerLeft.length == 2, "Point array has to have 2 elements!");
-		Assert.isTrue(upperRight.length == 2, "Point array has to have 2 elements!");
-		this.first = new Point(lowerLeft[0], lowerLeft[1]);
-		this.second = new Point(upperRight[0], upperRight[1]);
-	}
-
-	public Point getLowerLeft() {
-		return first;
-	}
-
-	public Point getUpperRight() {
-		return second;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.geo.Shape#asList()
-	 */
-	public List<? extends Object> asList() {
-		List<List<Double>> list = new ArrayList<List<Double>>();
-		list.add(getLowerLeft().asList());
-		list.add(getUpperRight().asList());
-		return list;
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.geo.Shape#getCommand()
-	 */
-	public String getCommand() {
-		return "$box";
-	}
-
-	@Override
-	public String toString() {
-		return String.format("Box [%s, %s]", first, second);
-	}
-
-	@Override
-	public int hashCode() {
-
-		int result = 31;
-		result += 17 * first.hashCode();
-		result += 17 * second.hashCode();
-		return result;
-	}
-
-	@Override
-	public boolean equals(Object obj) {
-		if (this == obj) {
-			return true;
-		}
-		if (obj == null) {
-			return false;
-		}
-		if (getClass() != obj.getClass()) {
-			return false;
-		}
-		Box that = (Box) obj;
-		return this.first.equals(that.first) && this.second.equals(that.second);
-	}
-}