DATAMONGO-541 - Release 1.1.0.RELEASE.

DATAMONGO-541 - Polished pom.xml for Maven central propagation.
DATAMONGO-541 - Updated reference docs and changelog.
2012-10-10 05:30:15 -07:00 · 2012-10-10 14:23:11 +02:00 · 2012-10-10 14:04:43 +02:00 · 2012-10-10 14:04:27 +02:00 · 2012-10-09 09:11:27 +02:00 · 2012-09-20 10:38:46 +02:00
249 changed files with 11382 additions and 3985 deletions
--- a/README.md
+++ b/README.md
@@ -1,16 +1,22 @@
-Spring Data - Document
+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.
-As the name implies, the **Document** modules provides integration with document databases such as [MongoDB](http://www.mongodb.org/) and [CouchDB](http://couchdb.apache.org/).
+
+The Spring Data MongoDB aims to provide a familiar and consistent Spring-based programming model for 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

 Getting Help
 ------------

-At this point your best bet is to look at the Look at the [JavaDocs](http://static.springsource.org/spring-data/data-document/docs/1.0.0.BUILD-SNAPSHOT/spring-data-mongodb/apidocs/) for MongoDB integration and corresponding and source code. For more detailed questions, use the [forum](http://forum.springsource.org/forumdisplay.php?f=80). If you are new to Spring as well as to Spring Data, look for information about [Spring projects](http://www.springsource.org/projects). 
+For a comprehensive treatmet of all the Spring Data MongoDB features, please refer to the The [User Guide](http://static.springsource.org/spring-data/data-mongodb/docs/current/reference/html/) 

-The [User Guide](http://static.springsource.org/spring-data/data-document/docs/1.0.0.BUILD-SNAPSHOT/reference/html/) (A work in progress). 
+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). 
+
+If you are new to Spring as well as to Spring Data, look for information about [Spring projects](http://www.springsource.org/projects). 


 Quick Start
@@ -137,11 +143,6 @@ This will register an object in the container named PersonRepository.  You can u
    }


-## CouchDB
-
-TBD
-
-
 Contributing to Spring Data
 ---------------------------

--- a/etc/formatting.xml
+++ b/etc/formatting.xml
@@ -0,0 +1,291 @@
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+<profiles version="12">
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+<setting id="org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode" value="enabled"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_try" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.put_empty_statement_on_new_line" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_label" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_parameter" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_type_parameters" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_method_invocation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_while_in_do_statement" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_enum_constant" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.format_javadoc_comments" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.line_length" value="120"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_after_annotation_on_package" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_import_groups" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_enum_constant_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_constructor_declaration" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_method_body" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_conditional" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_type_header" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_annotation_type_member_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.wrap_before_binary_operator" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_declaration_header" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_between_type_declarations" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_synchronized" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_statements_compare_to_block" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_superinterfaces_in_enum_declaration" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.join_lines_in_comments" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_field_declarations" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_compact_if" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_for_inits" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_switchstatements_compare_to_cases" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_array_initializer" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_default" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_and_in_type_parameter" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_parens_in_constructor_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_imports" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_assert" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.format_html" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_method_declaration" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_allocation_expression" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_anonymous_type_declaration" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_colon_in_conditional" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_for" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_postfix_operator" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.format_source_code" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_synchronized" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_allocation_expression" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_constructor_declaration_throws" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_parameters_in_method_declaration" value="16"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_brace_in_array_initializer" value="insert"/>
+<setting id="org.eclipse.jdt.core.compiler.codegen.targetPlatform" value="1.7"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_resources_in_try" value="80"/>
+<setting id="org.eclipse.jdt.core.formatter.use_tabs_only_for_leading_indentations" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_annotation" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.format_header" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.format_block_comments" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants" value="0"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_new_line_in_empty_block" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_annotation_declaration_header" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_parenthesized_expression" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_parenthesized_expression" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_catch" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_multiple_local_declarations" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_invocation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_assert" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="end_of_line"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_array_initializer" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_between_empty_braces_in_array_initializer" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_method_declaration" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_for" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_catch" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_parameterized_type_reference" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_field_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_parameterized_type_reference" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.comment.new_lines_at_javadoc_boundaries" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.blank_lines_after_imports" value="1"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_multiple_local_declarations" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
+<setting id="org.eclipse.jdt.core.formatter.never_indent_line_comments_on_first_column" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_semicolon_in_try_resources" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_angle_bracket_in_type_arguments" value="do not insert"/>
+<setting id="org.eclipse.jdt.core.formatter.never_indent_block_comments_on_first_column" value="false"/>
+<setting id="org.eclipse.jdt.core.formatter.keep_then_statement_on_same_line" value="false"/>
+</profile>
+</profiles>
--- a/pom.xml
+++ b/pom.xml
@@ -1,11 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<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">
+<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>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-mongodb-dist</artifactId>
  <name>Spring Data MongoDB Distribution</name>
-  <version>1.0.0.RELEASE</version>
+  <description>Spring Data project for MongoDB</description>
+  <url>http://www.springsource.org/spring-data/mongodb</url>
+  <version>1.1.0.RELEASE</version>
  <packaging>pom</packaging>
  <modules>
    <module>spring-data-mongodb</module>
@@ -145,37 +146,35 @@
          <htmlCustomization>${project.basedir}/src/docbkx/resources/xsl/html.xsl</htmlCustomization>
          <useExtensions>1</useExtensions>
          <highlightSource>1</highlightSource>
-          <highlightDefaultLanguage></highlightDefaultLanguage>
+          <highlightDefaultLanguage />
          <!-- callouts -->
          <entities>
            <entity>
              <name>version</name>
-              <value>${pom.version}</value>
+              <value>${project.version}</value>
            </entity>
          </entities>
          <postProcess>
            <copy todir="${project.basedir}/target/site/reference">
              <fileset dir="${project.basedir}/target/docbkx">
-                <include name="**/*.html"/>
-                <include name="**/*.pdf"/>
+                <include name="**/*.html" />
+                <include name="**/*.pdf" />
              </fileset>
            </copy>
            <copy todir="${project.basedir}/target/site/reference/html">
              <fileset dir="${project.basedir}/src/docbkx/resources">
-                <include name="**/*.css"/>
-                <include name="**/*.png"/>
-                <include name="**/*.gif"/>
-                <include name="**/*.jpg"/>
+                <include name="**/*.css" />
+                <include name="**/*.png" />
+                <include name="**/*.gif" />
+                <include name="**/*.jpg" />
              </fileset>
            </copy>
            <copy todir="${project.basedir}/target/site/reference/html">
              <fileset dir="${project.basedir}/src/docbkx/resources/images">
-                <include name="*.png"/>
+                <include name="*.png" />
              </fileset>
            </copy>
-            <move file="${project.basedir}/target/site/reference/pdf/index.pdf"
-                  tofile="${project.basedir}/target/site/reference/pdf/spring-data-mongo-reference.pdf"
-                  failonerror="false"/>
+            <move file="${project.basedir}/target/site/reference/pdf/index.pdf" tofile="${project.basedir}/target/site/reference/pdf/spring-data-mongo-reference.pdf" failonerror="false" />
          </postProcess>
        </configuration>
      </plugin>
@@ -184,7 +183,7 @@
        <artifactId>maven-javadoc-plugin</artifactId>
        <version>2.5</version>
        <configuration>
-          <javadoc:aggregate>true</javadoc:aggregate>
+          <aggregate>true</aggregate>
          <breakiterator>true</breakiterator>
          <header>Spring Data Document</header>
          <source>1.5</source>
@@ -234,7 +233,7 @@
            <configuration>
              <tasks>
                <ant antfile="${basedir}/src/ant/upload-dist.xml">
-                  <target name="upload-dist"/>
+                  <target name="upload-dist" />
                </ant>
              </tasks>
            </configuration>
@@ -263,16 +262,10 @@
  </build>

  <pluginRepositories>
+    <!-- Necessary for the build extension -->
    <pluginRepository>
-      <!-- necessary for bundlor and utils -->
-      <id>repository.plugin.springsource.release</id>
-      <name>SpringSource Maven Repository</name>
-      <url>http://repository.springsource.com/maven/bundles/release</url>
-    </pluginRepository>
-    <pluginRepository>
-      <id>repository.springframework.maven.release</id>
-      <name>Spring Framework Maven Release Repository</name>
-      <url>http://repo.springsource.org/release</url>
+      <id>spring-plugins-release</id>
+      <url>http://repo.springsource.org/plugins-release</url>
    </pluginRepository>
  </pluginRepositories>

@@ -282,13 +275,13 @@
    <site>
      <id>static.springframework.org</id>
      <url>
-        scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-data/data-mongodb/docs/${project.version}
+        scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-data/data-mongodb/snapshot-site
      </url>
    </site>
    <repository>
-      <id>spring-release</id>
-      <name>Spring Release Repository</name>
-      <url>s3://maven.springframework.org/release</url>
+      <id>spring-milestone</id>
+      <name>Spring Milestone Repository</name>
+      <url>s3://maven.springframework.org/milestone</url>
    </repository>
    <snapshotRepository>
      <id>spring-snapshot</id>
@@ -297,4 +290,8 @@
    </snapshotRepository>
  </distributionManagement>

+  <scm>
+    <url>https://github.com/SpringSource/spring-data-mongodb</url>
+  </scm>
+
 </project>
--- a/spring-data-mongodb-cross-store/pom.xml
+++ b/spring-data-mongodb-cross-store/pom.xml
@@ -1,10 +1,10 @@
-<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">
+<?xml version="1.0" encoding="UTF-8"?>
+<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>1.0.0.RELEASE</version>
+    <version>1.1.0.RELEASE</version>
    <relativePath>../spring-data-mongodb-parent/pom.xml</relativePath>
  </parent>
  <artifactId>spring-data-mongodb-cross-store</artifactId>
@@ -15,10 +15,12 @@
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
+      <version>${org.springframework.version.range}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
+      <version>${org.springframework.version.range}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
@@ -28,82 +30,19 @@
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>org.springframework</groupId>
-      <artifactId>spring-test</artifactId>
-      <scope>test</scope>
+      <version>${org.springframework.version.range}</version>
    </dependency>

    <!--  Spring Data -->
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-commons-core</artifactId>
+      <version>${data.commons.version}</version>
    </dependency>
-    <!-- <dependency>
-      <groupId>org.springframework.data</groupId>
-      <artifactId>spring-data-commons-aspects</artifactId>
-    </dependency> -->
    <dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-mongodb</artifactId>
-    </dependency>
-
-
-    <!-- Logging -->
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-api</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>jcl-over-slf4j</artifactId>
-      <scope>compile</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-log4j12</artifactId>
-      <scope>runtime</scope>
-    </dependency>
-    <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
-      <exclusions>
-        <exclusion>
-          <groupId>javax.mail</groupId>
-          <artifactId>mail</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>javax.jms</groupId>
-          <artifactId>jms</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>com.sun.jdmk</groupId>
-          <artifactId>jmxtools</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>com.sun.jmx</groupId>
-          <artifactId>jmxri</artifactId>
-        </exclusion>
-      </exclusions>
-      <scope>runtime</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>javax.annotation</groupId>
-      <artifactId>jsr250-api</artifactId>
-      <optional>true</optional>
-    </dependency>
-
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-all</artifactId>
-      <scope>test</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
+      <version>1.1.0.RELEASE</version>
    </dependency>

    <dependency>
@@ -151,25 +90,7 @@
    </dependency>

  </dependencies>
-  <repositories>
-    <repository>
-      <id>jboss-repository</id>
-      <name>JBoss Public Repository</name>
-      <url>http://repository.jboss.org/nexus/content/groups/public-jboss</url>
-    </repository>
-  </repositories>
-  <pluginRepositories>
-    <pluginRepository>
-      <id>spring-maven-milestones</id>
-      <name>Springframework Maven Milestone Repository</name>
-      <url>http://maven.springframework.org/milestone</url>
-    </pluginRepository>
-    <pluginRepository>
-      <id>spring-maven-release</id>
-      <name>Springframework Maven Release Repository</name>
-      <url>http://maven.springframework.org/release</url>
-    </pluginRepository>
-  </pluginRepositories>
+
  <build>
    <plugins>
      <plugin>
--- a/spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoChangeSetPersister.java
+++ b/spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoChangeSetPersister.java
@@ -58,10 +58,8 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 		this.entityManagerFactory = entityManagerFactory;
 	}

-
-	public void getPersistentState(Class<? extends ChangeSetBacked> entityClass,
-			Object id, final ChangeSet changeSet)
-					throws DataAccessException, NotFoundException {
+	public void getPersistentState(Class<? extends ChangeSetBacked> entityClass, Object id, final ChangeSet changeSet)
+			throws DataAccessException, NotFoundException {

 		if (id == null) {
 			log.debug("Unable to load MongoDB data for null id");
@@ -77,8 +75,7 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 			log.debug("Loading MongoDB data for " + dbk);
 		}
 		mongoTemplate.execute(collName, new CollectionCallback<Object>() {
-			public Object doInCollection(DBCollection collection)
-					throws MongoException, DataAccessException {
+			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()) {
@@ -87,9 +84,8 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 					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);
@@ -135,10 +131,8 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 				dbQuery.put(ENTITY_ID, getPersistentId(entity, cs));
 				dbQuery.put(ENTITY_CLASS, entity.getClass().getName());
 				dbQuery.put(ENTITY_FIELD_NAME, key);
-				DBObject dbId = mongoTemplate.execute(collName,
-						new CollectionCallback<DBObject>() {
-					public DBObject doInCollection(DBCollection collection)
-							throws MongoException, DataAccessException {
+				DBObject dbId = mongoTemplate.execute(collName, new CollectionCallback<DBObject>() {
+					public DBObject doInCollection(DBCollection collection) throws MongoException, DataAccessException {
 						return collection.findOne(dbQuery);
 					}
 				});
@@ -147,14 +141,12 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 						log.debug("Flush: removing: " + dbQuery);
 					}
 					mongoTemplate.execute(collName, new CollectionCallback<Object>() {
-						public Object doInCollection(DBCollection collection)
-								throws MongoException, DataAccessException {
+						public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
 							collection.remove(dbQuery);
 							return null;
 						}
 					});
-				}
-				else {
+				} else {
 					final DBObject dbDoc = new BasicDBObject();
 					dbDoc.putAll(dbQuery);
 					if (log.isDebugEnabled()) {
@@ -166,8 +158,7 @@ public class MongoChangeSetPersister implements ChangeSetPersister<Object> {
 						dbDoc.put("_id", dbId.get("_id"));
 					}
 					mongoTemplate.execute(collName, new CollectionCallback<Object>() {
-						public Object doInCollection(DBCollection collection)
-								throws MongoException, DataAccessException {
+						public Object doInCollection(DBCollection collection) throws MongoException, DataAccessException {
 							collection.save(dbDoc);
 							return null;
 						}
--- a/spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoDocumentBacking.aj
+++ b/spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/MongoDocumentBacking.aj
@@ -38,235 +38,234 @@ import org.springframework.data.crossstore.HashMapChangeSet;
 import org.springframework.transaction.support.TransactionSynchronizationManager;

 /**
- * Aspect to turn an object annotated with @Document into a persistent document
- * using Mongo.
+ * Aspect to turn an object annotated with @Document into a persistent document using Mongo.
 * 
 * @author Thomas Risberg
 */
 public aspect MongoDocumentBacking {

-  private static final Log LOGGER = LogFactory
-      .getLog(MongoDocumentBacking.class);
+	private static final Log LOGGER = LogFactory.getLog(MongoDocumentBacking.class);

-  // Aspect shared config
-  private ChangeSetPersister<Object> changeSetPersister;
+	// Aspect shared config
+	private ChangeSetPersister<Object> changeSetPersister;

-  public void setChangeSetPersister(
-      ChangeSetPersister<Object> changeSetPersister) {
-    this.changeSetPersister = changeSetPersister;
-  }
+	public void setChangeSetPersister(ChangeSetPersister<Object> changeSetPersister) {
+		this.changeSetPersister = changeSetPersister;
+	}

-  // ITD to introduce N state to Annotated objects
-  declare parents : (@Entity *) implements DocumentBacked;
+	// ITD to introduce N state to Annotated objects
+	declare parents : (@Entity *) implements DocumentBacked;

-  // The annotated fields that will be persisted in MongoDB rather than with JPA
-  declare @field: @RelatedDocument * (@Entity+ *).*:@Transient;
+	// The annotated fields that will be persisted in MongoDB rather than with JPA
+	declare @field: @RelatedDocument * (@Entity+ *).*:@Transient;

-  // -------------------------------------------------------------------------
-  // Advise user-defined constructors of ChangeSetBacked objects to create a new
-  // backing ChangeSet
-  // -------------------------------------------------------------------------
-  pointcut arbitraryUserConstructorOfChangeSetBackedObject(DocumentBacked entity) : 
+	// -------------------------------------------------------------------------
+	// Advise user-defined constructors of ChangeSetBacked objects to create a new
+	// backing ChangeSet
+	// -------------------------------------------------------------------------
+	pointcut arbitraryUserConstructorOfChangeSetBackedObject(DocumentBacked entity) : 
 		execution((DocumentBacked+).new(..)) &&
 		!execution((DocumentBacked+).new(ChangeSet)) &&
 		this(entity);

-  pointcut finderConstructorOfChangeSetBackedObject(DocumentBacked entity,
-      ChangeSet cs) : 
+	pointcut finderConstructorOfChangeSetBackedObject(DocumentBacked entity, ChangeSet cs) : 
 		execution((DocumentBacked+).new(ChangeSet)) &&
 		this(entity) && 
 		args(cs);

-  protected pointcut entityFieldGet(DocumentBacked entity) :
+	protected pointcut entityFieldGet(DocumentBacked entity) :
        get(@RelatedDocument * DocumentBacked+.*) &&
        this(entity) &&
        !get(* DocumentBacked.*);

-  protected pointcut entityFieldSet(DocumentBacked entity, Object newVal) :
+	protected pointcut entityFieldSet(DocumentBacked entity, Object newVal) :
        set(@RelatedDocument * DocumentBacked+.*) &&
        this(entity) &&
        args(newVal) &&
        !set(* DocumentBacked.*);

-  // intercept EntityManager.merge calls
-  public pointcut entityManagerMerge(EntityManager em, Object entity) : 
+	// intercept EntityManager.merge calls
+	public pointcut entityManagerMerge(EntityManager em, Object entity) : 
    call(* EntityManager.merge(Object)) &&
    target(em) &&
    args(entity);
-  
-  // intercept EntityManager.remove calls
-//  public pointcut entityManagerRemove(EntityManager em, Object entity) : 
-//    call(* EntityManager.remove(Object)) &&
-//    target(em) &&
-//    args(entity);

-  // move changeSet from detached entity to the newly merged persistent object
-  Object around(EntityManager em, Object entity) : entityManagerMerge(em, entity) {
-    Object mergedEntity = proceed(em, entity);
-    if (entity instanceof DocumentBacked && mergedEntity instanceof DocumentBacked) {
-      ((DocumentBacked)mergedEntity).changeSet = ((DocumentBacked)entity).getChangeSet();
-    }
-    return mergedEntity;
-  }
+	// intercept EntityManager.remove calls
+	// public pointcut entityManagerRemove(EntityManager em, Object entity) :
+	// call(* EntityManager.remove(Object)) &&
+	// target(em) &&
+	// args(entity);

-  // clear changeSet from removed entity
-//  Object around(EntityManager em, Object entity) : entityManagerRemove(em, entity) {
-//    if (entity instanceof DocumentBacked) {
-//      removeChangeSetValues((DocumentBacked)entity);
-//    }
-//    return proceed(em, entity);
-//  }
-
-  private static void removeChangeSetValues(DocumentBacked entity) {
-    LOGGER.debug("Removing all change-set values for " + entity);	
-	ChangeSet nulledCs = new HashMapChangeSet();
-	DocumentBacked documentEntity = (DocumentBacked) entity;
-	@SuppressWarnings("unchecked")
-	ChangeSetPersister<Object> changeSetPersister = (ChangeSetPersister<Object>)documentEntity.itdChangeSetPersister;
-	try {
-        changeSetPersister.getPersistentState(
-            documentEntity.getClass(),
-            documentEntity.get_persistent_id(), 
-            documentEntity.getChangeSet());
-	} 
-	catch (DataAccessException e) {} 
-	catch (NotFoundException e) {}
-	for (String key :entity.getChangeSet().getValues().keySet()) {
-        nulledCs.set(key, null);
+	// move changeSet from detached entity to the newly merged persistent object
+	Object around(EntityManager em, Object entity) : entityManagerMerge(em, entity) {
+		Object mergedEntity = proceed(em, entity);
+		if (entity instanceof DocumentBacked && mergedEntity instanceof DocumentBacked) {
+			((DocumentBacked) mergedEntity).changeSet = ((DocumentBacked) entity).getChangeSet();
+		}
+		return mergedEntity;
 	}
-	entity.setChangeSet(nulledCs);
-  }

-  before(DocumentBacked entity) : arbitraryUserConstructorOfChangeSetBackedObject(entity) {
-    LOGGER
-        .debug("User-defined constructor called on DocumentBacked object of class "
-            + entity.getClass());
-    // Populate all ITD fields
-    entity.setChangeSet(new HashMapChangeSet());
-    entity.itdChangeSetPersister = changeSetPersister;
-    entity.itdTransactionSynchronization = 
-        new ChangeSetBackedTransactionSynchronization(changeSetPersister, entity);
-    //registerTransactionSynchronization(entity);
-  }
+	// clear changeSet from removed entity
+	// Object around(EntityManager em, Object entity) : entityManagerRemove(em, entity) {
+	// if (entity instanceof DocumentBacked) {
+	// removeChangeSetValues((DocumentBacked)entity);
+	// }
+	// return proceed(em, entity);
+	// }

-  private static void registerTransactionSynchronization(DocumentBacked entity) {
-    if (TransactionSynchronizationManager.isSynchronizationActive()) {
-      if (!TransactionSynchronizationManager.getSynchronizations().contains(entity.itdTransactionSynchronization)) {
-        if (LOGGER.isDebugEnabled()) {
-          LOGGER.debug("Adding transaction synchronization for " + entity);
-        }
-        TransactionSynchronizationManager.registerSynchronization(entity.itdTransactionSynchronization);
-      }
-      else {
-        if (LOGGER.isDebugEnabled()) {
-          LOGGER.debug("Transaction synchronization already active for " + entity);
-        }
-      }
-    }
-    else {
-      if (LOGGER.isDebugEnabled()) {
-        LOGGER.debug("Transaction synchronization is not active for " + entity);
-      }
-    }
-  }
+	private static void removeChangeSetValues(DocumentBacked entity) {
+		LOGGER.debug("Removing all change-set values for " + entity);
+		ChangeSet nulledCs = new HashMapChangeSet();
+		DocumentBacked documentEntity = (DocumentBacked) entity;
+		@SuppressWarnings("unchecked")
+		ChangeSetPersister<Object> changeSetPersister = (ChangeSetPersister<Object>) documentEntity.itdChangeSetPersister;
+		try {
+			changeSetPersister.getPersistentState(documentEntity.getClass(), documentEntity.get_persistent_id(),
+					documentEntity.getChangeSet());
+		} catch (DataAccessException e) {
+		} catch (NotFoundException e) {
+		}
+		for (String key : entity.getChangeSet().getValues().keySet()) {
+			nulledCs.set(key, null);
+		}
+		entity.setChangeSet(nulledCs);
+	}

-  // -------------------------------------------------------------------------
-  // ChangeSet-related mixins
-  // -------------------------------------------------------------------------
-  // Introduced field
-  @Transient private ChangeSet DocumentBacked.changeSet;
+	before(DocumentBacked entity) : arbitraryUserConstructorOfChangeSetBackedObject(entity) {
+		LOGGER.debug("User-defined constructor called on DocumentBacked object of class " + entity.getClass());
+		// Populate all ITD fields
+		entity.setChangeSet(new HashMapChangeSet());
+		entity.itdChangeSetPersister = changeSetPersister;
+		entity.itdTransactionSynchronization = new ChangeSetBackedTransactionSynchronization(changeSetPersister, entity);
+		// registerTransactionSynchronization(entity);
+	}

-  @Transient private ChangeSetPersister<?> DocumentBacked.itdChangeSetPersister;
+	private static void registerTransactionSynchronization(DocumentBacked entity) {
+		if (TransactionSynchronizationManager.isSynchronizationActive()) {
+			if (!TransactionSynchronizationManager.getSynchronizations().contains(entity.itdTransactionSynchronization)) {
+				if (LOGGER.isDebugEnabled()) {
+					LOGGER.debug("Adding transaction synchronization for " + entity);
+				}
+				TransactionSynchronizationManager.registerSynchronization(entity.itdTransactionSynchronization);
+			} else {
+				if (LOGGER.isDebugEnabled()) {
+					LOGGER.debug("Transaction synchronization already active for " + entity);
+				}
+			}
+		} else {
+			if (LOGGER.isDebugEnabled()) {
+				LOGGER.debug("Transaction synchronization is not active for " + entity);
+			}
+		}
+	}

-  @Transient private ChangeSetBackedTransactionSynchronization DocumentBacked.itdTransactionSynchronization;
+	// -------------------------------------------------------------------------
+	// ChangeSet-related mixins
+	// -------------------------------------------------------------------------
+	// Introduced field
+	@Transient
+	private ChangeSet DocumentBacked.changeSet;

-  public void DocumentBacked.setChangeSet(ChangeSet cs) {
-    this.changeSet = cs;
-  }
+	@Transient
+	private ChangeSetPersister<?> DocumentBacked.itdChangeSetPersister;

-  public ChangeSet DocumentBacked.getChangeSet() {
-    return changeSet;
-  }
+	@Transient
+	private ChangeSetBackedTransactionSynchronization DocumentBacked.itdTransactionSynchronization;

-  // Flush the entity state to the persistent store
-  public void DocumentBacked.flush() {
-    Object id = itdChangeSetPersister.getPersistentId(this, this.changeSet);
-    itdChangeSetPersister.persistState(this, this.changeSet);
-  }
+	public void DocumentBacked.setChangeSet(ChangeSet cs) {
+		this.changeSet = cs;
+	}

-  public Object DocumentBacked.get_persistent_id() {
-    return itdChangeSetPersister.getPersistentId(this, this.changeSet);
-  }
+	public ChangeSet DocumentBacked.getChangeSet() {
+		return changeSet;
+	}

-  // lifecycle methods
-  @javax.persistence.PostPersist public void DocumentBacked.itdPostPersist() {
-    if (LOGGER.isDebugEnabled()) {
-      LOGGER.debug("JPA lifecycle event PrePersist: " + this.getClass().getName());
-    }
-    registerTransactionSynchronization(this);
-  }
-  @javax.persistence.PreUpdate public void DocumentBacked.itdPreUpdate() {
-    if (LOGGER.isDebugEnabled()) {
-      LOGGER.debug("JPA lifecycle event PreUpdate: " + this.getClass().getName() + " :: " + this);
-    }
-    registerTransactionSynchronization(this);
-  }
-  @javax.persistence.PostUpdate public void DocumentBacked.itdPostUpdate() {
-    if (LOGGER.isDebugEnabled()) {
-      LOGGER.debug("JPA lifecycle event PostUpdate: " + this.getClass().getName() + " :: " + this);
-    }
-    registerTransactionSynchronization(this);
-  }
-  @javax.persistence.PostRemove public void DocumentBacked.itdPostRemove() {
-    if (LOGGER.isDebugEnabled()) {
-      LOGGER.debug("JPA lifecycle event PostRemove: " + this.getClass().getName() + " :: " + this);
-    }
-    registerTransactionSynchronization(this);
-    removeChangeSetValues(this);
-  }
-  @javax.persistence.PostLoad public void DocumentBacked.itdPostLoad() {
-    if (LOGGER.isDebugEnabled()) {
-      LOGGER.debug("JPA lifecycle event PostLoad: " + this.getClass().getName() + " :: " + this);
-    }
-    registerTransactionSynchronization(this);
-  }
-  
-  /**
-   * delegates field reads to the state accessors instance
-   */
-  Object around(DocumentBacked entity): entityFieldGet(entity) {
-    Field f = field(thisJoinPoint);
-    String propName = f.getName();
-    LOGGER.trace("GET " + f + " -> ChangeSet value property [" + propName
-        + "] using: " + entity.getChangeSet());
-    if (entity.getChangeSet().getValues().get(propName) == null) {
-      try {
-        this.changeSetPersister.getPersistentState(entity.getClass(),
-            entity.get_persistent_id(), entity.getChangeSet());
-      } catch (NotFoundException e) {
-      }
-    }
-    Object fValue = entity.getChangeSet().getValues().get(propName);
-    if (fValue != null) {
-      return fValue;
-    }
-    return proceed(entity);
-  }
+	// Flush the entity state to the persistent store
+	public void DocumentBacked.flush() {
+		Object id = itdChangeSetPersister.getPersistentId(this, this.changeSet);
+		itdChangeSetPersister.persistState(this, this.changeSet);
+	}

-  /**
-   * delegates field writes to the state accessors instance
-   */
-  Object around(DocumentBacked entity, Object newVal) : entityFieldSet(entity, newVal) {
-    Field f = field(thisJoinPoint);
-    String propName = f.getName();
-    LOGGER.trace("SET " + f + " -> ChangeSet number value property [" + propName
-        + "] with value=[" + newVal + "]");
-    entity.getChangeSet().set(propName, newVal);
-    return proceed(entity, newVal);
-  }
+	public Object DocumentBacked.get_persistent_id() {
+		return itdChangeSetPersister.getPersistentId(this, this.changeSet);
+	}

-  Field field(JoinPoint joinPoint) {
-    FieldSignature fieldSignature = (FieldSignature) joinPoint.getSignature();
-    return fieldSignature.getField();
-  }
+	// lifecycle methods
+	@javax.persistence.PostPersist
+	public void DocumentBacked.itdPostPersist() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PrePersist: " + this.getClass().getName());
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	@javax.persistence.PreUpdate
+	public void DocumentBacked.itdPreUpdate() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PreUpdate: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	@javax.persistence.PostUpdate
+	public void DocumentBacked.itdPostUpdate() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PostUpdate: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	@javax.persistence.PostRemove
+	public void DocumentBacked.itdPostRemove() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PostRemove: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+		removeChangeSetValues(this);
+	}
+
+	@javax.persistence.PostLoad
+	public void DocumentBacked.itdPostLoad() {
+		if (LOGGER.isDebugEnabled()) {
+			LOGGER.debug("JPA lifecycle event PostLoad: " + this.getClass().getName() + " :: " + this);
+		}
+		registerTransactionSynchronization(this);
+	}
+
+	/**
+	 * delegates field reads to the state accessors instance
+	 */
+	Object around(DocumentBacked entity): entityFieldGet(entity) {
+		Field f = field(thisJoinPoint);
+		String propName = f.getName();
+		LOGGER.trace("GET " + f + " -> ChangeSet value property [" + propName + "] using: " + entity.getChangeSet());
+		if (entity.getChangeSet().getValues().get(propName) == null) {
+			try {
+				this.changeSetPersister
+						.getPersistentState(entity.getClass(), entity.get_persistent_id(), entity.getChangeSet());
+			} catch (NotFoundException e) {
+			}
+		}
+		Object fValue = entity.getChangeSet().getValues().get(propName);
+		if (fValue != null) {
+			return fValue;
+		}
+		return proceed(entity);
+	}
+
+	/**
+	 * delegates field writes to the state accessors instance
+	 */
+	Object around(DocumentBacked entity, Object newVal) : entityFieldSet(entity, newVal) {
+		Field f = field(thisJoinPoint);
+		String propName = f.getName();
+		LOGGER.trace("SET " + f + " -> ChangeSet number value property [" + propName + "] with value=[" + newVal + "]");
+		entity.getChangeSet().set(propName, newVal);
+		return proceed(entity, newVal);
+	}
+
+	Field field(JoinPoint joinPoint) {
+		FieldSignature fieldSignature = (FieldSignature) joinPoint.getSignature();
+		return fieldSignature.getField();
+	}
 }
--- a/spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/RelatedDocument.java
+++ b/spring-data-mongodb-cross-store/src/main/java/org/springframework/data/mongodb/crossstore/RelatedDocument.java
@@ -24,8 +24,6 @@ import java.lang.annotation.Target;
 * @author Thomas Risberg
 */
@Retention(RetentionPolicy.RUNTIME)
-@Target({
-    ElementType.FIELD
-})
+@Target({ ElementType.FIELD })
 public @interface RelatedDocument {
 }
--- a/spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/CrossStoreMongoTests.java
+++ b/spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/CrossStoreMongoTests.java
@@ -90,8 +90,7 @@ public class CrossStoreMongoTests {
 		Assert.assertNotNull(found);
 		Assert.assertEquals(Long.valueOf(1), found.getId());
 		Assert.assertNotNull(found.getResume());
-		Assert.assertEquals("DiMark, DBA, 1990-2000" + "; "
-				+ "VMware, Developer, 2007-", found.getResume().getJobs());
+		Assert.assertEquals("DiMark, DBA, 1990-2000" + "; " + "VMware, Developer, 2007-", found.getResume().getJobs());
 		found.getResume().addJob("SpringDeveloper.com, Consultant, 2005-2006");
 		found.setAge(44);
 	}
@@ -106,8 +105,7 @@ public class CrossStoreMongoTests {
 		Assert.assertNotNull(found);
 		Assert.assertEquals(Long.valueOf(1), found.getId());
 		Assert.assertNotNull(found.getResume());
-		Assert.assertEquals("DiMark, DBA, 1990-2000" + "; "
-				+ "VMware, Developer, 2007-" + "; "
+		Assert.assertEquals("DiMark, DBA, 1990-2000" + "; " + "VMware, Developer, 2007-" + "; "
 				+ "SpringDeveloper.com, Consultant, 2005-2006", found.getResume().getJobs());
 	}

--- a/spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/test/Address.java
+++ b/spring-data-mongodb-cross-store/src/test/java/org/springframework/data/mongodb/crossstore/test/Address.java
@@ -23,8 +23,7 @@ public class Address {
 	private String state;
 	private String zip;

-	public Address(Integer streetNumber, String streetName, String city,
-			String state, String zip) {
+	public Address(Integer streetNumber, String streetName, String city, String state, String zip) {
 		super();
 		this.streetNumber = streetNumber;
 		this.streetName = streetName;
@@ -36,34 +35,41 @@ public class Address {
 	public Integer getStreetNumber() {
 		return streetNumber;
 	}
+
 	public void setStreetNumber(Integer streetNumber) {
 		this.streetNumber = streetNumber;
 	}
+
 	public String getStreetName() {
 		return streetName;
 	}
+
 	public void setStreetName(String streetName) {
 		this.streetName = streetName;
 	}
+
 	public String getCity() {
 		return city;
 	}
+
 	public void setCity(String city) {
 		this.city = city;
 	}
+
 	public String getState() {
 		return state;
 	}
+
 	public void setState(String state) {
 		this.state = state;
 	}
+
 	public String getZip() {
 		return zip;
 	}
+
 	public void setZip(String zip) {
 		this.zip = zip;
 	}

-
-
 }
--- a/spring-data-mongodb-log4j/pom.xml
+++ b/spring-data-mongodb-log4j/pom.xml
@@ -1,20 +1,15 @@
-<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">
+<?xml version="1.0" encoding="UTF-8"?>
+<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>1.0.0.RELEASE</version>
+    <version>1.1.0.RELEASE</version>
    <relativePath>../spring-data-mongodb-parent/pom.xml</relativePath>
  </parent>
  <artifactId>spring-data-mongodb-log4j</artifactId>
  <name>Spring Data MongoDB Log4J Appender</name>

-  <properties>
-    <mongo.version>2.3</mongo.version>
-  </properties>
-
  <dependencies>

    <!-- MongoDB -->
@@ -28,45 +23,7 @@
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
-      <exclusions>
-        <exclusion>
-          <groupId>javax.mail</groupId>
-          <artifactId>mail</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>javax.jms</groupId>
-          <artifactId>jms</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>com.sun.jdmk</groupId>
-          <artifactId>jmxtools</artifactId>
-        </exclusion>
-        <exclusion>
-          <groupId>com.sun.jmx</groupId>
-          <artifactId>jmxri</artifactId>
-        </exclusion>
-      </exclusions>
-      <scope>compile</scope>
-    </dependency>
-
-    <!-- Test dependencies -->
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-all</artifactId>
-      <scope>test</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>org.hamcrest</groupId>
-      <artifactId>hamcrest-all</artifactId>
-      <version>1.1</version>
-      <scope>test</scope>
-    </dependency>
-
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <scope>test</scope>
+      <version>${log4j.version}</version>
    </dependency>

  </dependencies>
--- a/spring-data-mongodb-parent/pom.xml
+++ b/spring-data-mongodb-parent/pom.xml
@@ -1,63 +1,102 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<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">
+<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>
  <groupId>org.springframework.data</groupId>
  <artifactId>spring-data-mongodb-parent</artifactId>
  <name>Spring Data MongoDB Parent</name>
+  <description>Spring Data project for MongoDB</description>
  <url>http://www.springsource.org/spring-data/mongodb</url>
-  <version>1.0.0.RELEASE</version>
+  <version>1.1.0.RELEASE</version>
  <packaging>pom</packaging>
+  
+  <developers>
+    <developer>
+      <id>trisberg</id>
+      <name>Thomas Risberg</name>
+      <email>trisberg at vmware.com</email>
+      <organization>SpringSource</organization>
+      <organizationUrl>http://www.SpringSource.com</organizationUrl>
+      <roles>
+        <role>Project Admin</role>
+        <role>Developer</role>
+      </roles>
+      <timezone>-5</timezone>
+    </developer>
+    <developer>
+      <id>mpollack</id>
+      <name>Mark Pollack</name>
+      <email>mpollack at vmware.com</email>
+      <organization>SpringSource</organization>
+      <organizationUrl>http://www.SpringSource.com</organizationUrl>
+      <roles>
+        <role>Project Admin</role>
+        <role>Developer</role>
+      </roles>
+      <timezone>-5</timezone>
+    </developer>
+    <developer>
+      <id>ogierke</id>
+      <name>Oliver Gierke</name>
+      <email>ogierke at vmware.com</email>
+      <organization>SpringSource</organization>
+      <organizationUrl>http://www.springsource.com</organizationUrl>
+      <roles>
+        <role>Developer</role>
+      </roles>
+      <timezone>+1</timezone>
+    </developer>
+    <developer>
+      <id>jbrisbin</id>
+      <name>Jon Brisbin</name>
+      <email>jbrisbin at vmware.com</email>
+      <organization>SpringSource</organization>
+      <organizationUrl>http://www.springsource.com</organizationUrl>
+      <roles>
+        <role>Developer</role>
+      </roles>
+      <timezone>-6</timezone>
+    </developer>
+  </developers>
+  
+  <licenses>
+    <license>
+      <name>Apache License, Version 2.0</name>
+      <url>http://www.apache.org/licenses/LICENSE-2.0</url>
+      <comments>
+        Copyright 2010 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.
+      </comments>
+    </license>
+  </licenses>
+  
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!-- versions for commonly-used dependencies -->
-    <junit.version>4.8.1</junit.version>
-    <log4j.version>1.2.15</log4j.version>
-    <org.mockito.version>1.8.4</org.mockito.version>
-    <org.slf4j.version>1.5.10</org.slf4j.version>
+    <mongo.version>2.9.1</mongo.version>
+    <junit.version>4.10</junit.version>
+    <log4j.version>1.2.16</log4j.version>
+    <org.mockito.version>1.9.0</org.mockito.version>
+    <org.slf4j.version>1.6.1</org.slf4j.version>
    <org.codehaus.jackson.version>1.6.1</org.codehaus.jackson.version>
    <org.springframework.version.30>3.0.7.RELEASE</org.springframework.version.30>
-    <org.springframework.version.40>4.0.0.RELEASE</org.springframework.version.40>
-    <org.springframework.version.range>[${org.springframework.version.30}, ${org.springframework.version.40})</org.springframework.version.range>
-    <data.commons.version>1.2.0.RELEASE</data.commons.version>
+    <org.springframework.version.range>3.1.2.RELEASE</org.springframework.version.range>
+    <data.commons.version>1.4.0.RELEASE</data.commons.version>
    <aspectj.version>1.6.11.RELEASE</aspectj.version>
+    <bundlor.failOnWarnings>true</bundlor.failOnWarnings>
  </properties>
-  <profiles>
-    <profile>
-      <id>strict</id>
-      <properties>
-        <maven.test.failure.ignore>false</maven.test.failure.ignore>
-      </properties>
-    </profile>
-    <profile>
-      <id>fast</id>
-      <properties>
-        <maven.test.skip>true</maven.test.skip>
-        <maven.javadoc.skip>true</maven.javadoc.skip>
-      </properties>
-    </profile>
-    <profile>
-      <id>staging</id>
-      <distributionManagement>
-        <site>
-          <id>spring-site-staging</id>
-          <url>file:///${java.io.tmpdir}/spring-data/mongodb/docs</url>
-        </site>
-        <repository>
-          <id>spring-milestone-staging</id>
-          <url>file:///${java.io.tmpdir}/spring-data/mongodb/milestone</url>
-        </repository>
-        <snapshotRepository>
-          <id>spring-snapshot-staging</id>
-          <url>file:///${java.io.tmpdir}/spring-data/mongodb/snapshot</url>
-        </snapshotRepository>
-      </distributionManagement>
-    </profile>
-    <profile>
-      <id>bootstrap</id>
-      <!-- TODO: move the repositories in here before release -->
-    </profile>
-  </profiles>
+ 
  <distributionManagement>
    <!-- see 'staging' profile for dry-run deployment settings -->
    <downloadUrl>http://www.springsource.com/download/community
@@ -65,13 +104,13 @@
    <site>
      <id>static.springframework.org</id>
      <url>
-        scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-data/data-mongodb/docs/${project.version}
+        scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-data/data-mongodb/snapshot-site
      </url>
    </site>
    <repository>
-      <id>spring-release</id>
-      <name>Spring Release Repository</name>
-      <url>s3://maven.springframework.org/release</url>
+      <id>spring-milestone</id>
+      <name>Spring Milestone Repository</name>
+      <url>s3://maven.springframework.org/milestone</url>
    </repository>
    <snapshotRepository>
      <id>spring-snapshot</id>
@@ -79,163 +118,68 @@
      <url>s3://maven.springframework.org/snapshot</url>
    </snapshotRepository>
  </distributionManagement>
-  <dependencyManagement>
-    <!--
-        inheritable <dependency> declarations for child poms. children still
-        must explicitly declare the groupId/artifactId of these dependencies
-        in order for them to show up on the classpath, but metadata like
-        <version> and <scope> are inherited, which cuts down on verbosity.
-        see
-        http://www.sonatype.com/books/mvnref-book/reference/pom-relationships-sect-dep-manage.html
-      -->
-    <dependencies>
-
-      <!--  Spring -->
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-aop</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-beans</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-core</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-tx</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-orm</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-web</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-expression</artifactId>
-        <version>${org.springframework.version.range}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-test</artifactId>
-        <version>${org.springframework.version.range}</version>
-        <scope>test</scope>
-      </dependency>
-
-      <!--  Spring Data -->
-      <dependency>
-        <groupId>org.springframework.data</groupId>
-        <artifactId>spring-data-commons-core</artifactId>
-        <version>${data.commons.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.data</groupId>
-        <artifactId>spring-data-commons-aspects</artifactId>
-        <version>${data.commons.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.data</groupId>
-        <artifactId>spring-data-couchdb</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.data</groupId>
-        <artifactId>spring-data-mongodb</artifactId>
-        <version>${project.version}</version>
-      </dependency>
-
-      <!-- Logging -->
-      <dependency>
-        <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-api</artifactId>
-        <version>${org.slf4j.version}</version>
-        <scope>runtime</scope>
-      </dependency>
-      <dependency>
-        <groupId>org.slf4j</groupId>
-        <artifactId>jcl-over-slf4j</artifactId>
-        <version>${org.slf4j.version}</version>
-        <scope>runtime</scope>
-      </dependency>
-      <dependency>
-        <groupId>org.slf4j</groupId>
-        <artifactId>slf4j-log4j12</artifactId>
-        <version>${org.slf4j.version}</version>
-        <scope>runtime</scope>
-      </dependency>
-      <dependency>
-        <groupId>log4j</groupId>
-        <artifactId>log4j</artifactId>
-        <version>${log4j.version}</version>
-        <exclusions>
-          <exclusion>
-            <groupId>javax.mail</groupId>
-            <artifactId>mail</artifactId>
-          </exclusion>
-          <exclusion>
-            <groupId>javax.jms</groupId>
-            <artifactId>jms</artifactId>
-          </exclusion>
-          <exclusion>
-            <groupId>com.sun.jdmk</groupId>
-            <artifactId>jmxtools</artifactId>
-          </exclusion>
-          <exclusion>
-            <groupId>com.sun.jmx</groupId>
-            <artifactId>jmxri</artifactId>
-          </exclusion>
-        </exclusions>
-        <scope>runtime</scope>
-      </dependency>
-
-      <dependency>
-        <groupId>javax.annotation</groupId>
-        <artifactId>jsr250-api</artifactId>
-        <version>1.0</version>
-        <optional>true</optional>
-      </dependency>
-
-      <dependency>
-        <groupId>org.mockito</groupId>
-        <artifactId>mockito-all</artifactId>
-        <version>${org.mockito.version}</version>
-        <scope>test</scope>
-      </dependency>
-
-      <dependency>
-        <groupId>junit</groupId>
-        <artifactId>junit</artifactId>
-        <version>${junit.version}</version>
-        <scope>test</scope>
-      </dependency>
-
-    </dependencies>
-  </dependencyManagement>
+  
  <dependencies>
-    <!--
-        dependency definitions to be inherited by child poms. any
-        <dependency> declarations here will automatically show up on child
-        project classpaths. only items that are truly common across all
-        projects (modules and samples) should go here. otherwise, consider
-        <dependencyManagement> above
-      -->
-    <dependency>
-      <groupId>log4j</groupId>
-      <artifactId>log4j</artifactId>
-      <version>${log4j.version}</version>
-      <scope>test</scope>
-    </dependency>
+
+		<!-- Test dependencies -->
+		<dependency>
+			<groupId>org.hamcrest</groupId>
+			<artifactId>hamcrest-library</artifactId>
+			<version>1.2.1</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit-dep</artifactId>
+			<version>${junit.version}</version>
+			<scope>test</scope>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.mockito</groupId>
+			<artifactId>mockito-core</artifactId>
+			<version>${org.mockito.version}</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>joda-time</groupId>
+			<artifactId>joda-time</artifactId>
+			<version>1.6</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-api</artifactId>
+			<version>${org.slf4j.version}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>jcl-over-slf4j</artifactId>
+			<version>${org.slf4j.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.slf4j</groupId>
+			<artifactId>slf4j-log4j12</artifactId>
+			<version>${org.slf4j.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>log4j</groupId>
+			<artifactId>log4j</artifactId>
+			<version>${log4j.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-test</artifactId>
+			<version>${org.springframework.version.range}</version>
+			<scope>test</scope>
+		</dependency>
+
  </dependencies>

  <build>
@@ -291,7 +235,7 @@
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
-        <version>2.3.2</version>
+        <version>2.5.1</version>
        <configuration>
          <source>1.5</source>
          <target>1.5</target>
@@ -311,13 +255,16 @@
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.8</version>
+        <version>2.12</version>
        <configuration>
          <useFile>false</useFile>
          <includes>
            <include>**/*Tests.java</include>
          </includes>
-          <junitArtifactName>junit:junit</junitArtifactName>
+          <excludes>
+          	<exclude>**/PerformanceTests.java</exclude>
+          </excludes>
+          <junitArtifactName>junit:junit-dep</junitArtifactName>
        </configuration>
      </plugin>
      <plugin>
@@ -353,7 +300,7 @@
          <artifactId>com.springsource.bundlor.maven</artifactId>
          <version>1.0.0.RELEASE</version>
          <configuration>
-            <failOnWarnings>true</failOnWarnings>
+            <failOnWarnings>${bundlor.failOnWarnings}</failOnWarnings>
          </configuration>
          <executions>
            <execution>
@@ -369,22 +316,18 @@
  </build>
  <pluginRepositories>
    <pluginRepository>
-      <!-- necessary for bundlor and utils -->
-      <id>repository.plugin.springsource.release</id>
-      <name>SpringSource Maven Repository</name>
-      <url>http://repository.springsource.com/maven/bundles/release</url>
+      <id>spring-plugins-release</id>
+      <url>http://repo.springsource.org/plugins-release</url>
    </pluginRepository>
    <pluginRepository>
-      <id>repository.springframework.maven.release</id>
-      <name>Spring Framework Maven Release Repository</name>
-      <url>http://repo.springsource.org/release</url>
+      <id>querydsl</id>
+      <url>http://source.mysema.com/maven2/releases</url>
    </pluginRepository>
  </pluginRepositories>
  <repositories>
    <repository>
-      <id>repository.springframework.maven.release</id>
-      <name>Spring Framework Maven Release Repository</name>
-      <url>http://repo.springsource.org/release</url>
+      <id>spring-libs-release</id>
+      <url>http://repo.springsource.org/libs-release</url>
    </repository>
  </repositories>
  <reporting>
@@ -404,4 +347,7 @@
      </plugin>
    </plugins>
  </reporting>
+  <scm>
+    <url>https://github.com/SpringSource/spring-data-mongodb</url>
+  </scm>
 </project>
--- a/spring-data-mongodb/Spring
+++ b/spring-data-mongodb/Spring
@@ -49,6 +49,12 @@
                </element>
                <dependency type="AllowedDependency" toName="Project|spring-data-mongodb::Layer|Core"/>
            </element>
+            <element name="GridFS" type="Layer">
+                <element name="Assignment" type="TypeFilter">
+                    <element name="**.gridfs.**" type="IncludeTypePattern"/>
+                </element>
+                <dependency type="AllowedDependency" toName="Project|spring-data-mongodb::Layer|Core"/>
+            </element>
            <element name="Core" type="Layer">
                <element name="Assignment" type="TypeFilter">
                    <element name="**.core.**" type="IncludeTypePattern"/>
--- a/spring-data-mongodb/pom.xml
+++ b/spring-data-mongodb/pom.xml
@@ -1,36 +1,55 @@
-<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">
+<?xml version="1.0" encoding="UTF-8"?>
+<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>1.0.0.RELEASE</version>
+		<version>1.1.0.RELEASE</version>
 		<relativePath>../spring-data-mongodb-parent/pom.xml</relativePath>
 	</parent>
 	<artifactId>spring-data-mongodb</artifactId>
 	<name>Spring Data MongoDB</name>

 	<properties>
-		<mongo.version>2.7.1</mongo.version>
-		<querydsl.version>2.3.0</querydsl.version>
+		<querydsl.version>2.8.0</querydsl.version>
+		<cdi.version>1.0</cdi.version>
+		<validation.version>1.0.0.GA</validation.version>
+		<webbeans.version>1.1.3</webbeans.version>
 	</properties>

 	<dependencies>

 		<!--  Spring -->
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-tx</artifactId>
+			<version>${org.springframework.version.range}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-context</artifactId>
+			<version>${org.springframework.version.range}</version>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-beans</artifactId>
+			<version>${org.springframework.version.range}</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-core</artifactId>
+			<version>${org.springframework.version.range}</version>
+			<exclusions>
+				<exclusion>
+          			<groupId>commons-logging</groupId>
+          			<artifactId>commons-logging</artifactId>
+        		</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-expression</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-test</artifactId>
-			<scope>test</scope>
+			<version>${org.springframework.version.range}</version>
 		</dependency>

 		<!--  Spring Data -->
@@ -58,76 +77,86 @@
 			<artifactId>querydsl-mongodb</artifactId>
 			<version>${querydsl.version}</version>
 			<optional>true</optional>
-			<exclusions>
-				<exclusion>
-					<groupId>com.google.code.morphia</groupId>
-					<artifactId>morphia</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-
-		<dependency>
-			<groupId>com.mysema.querydsl</groupId>
-			<artifactId>querydsl-apt</artifactId>
-			<version>${querydsl.version}</version>
-			<scope>provided</scope>
 		</dependency>

 		<dependency>
 			<groupId>javax.annotation</groupId>
 			<artifactId>jsr250-api</artifactId>
+			<version>1.0</version>
+			<optional>true</optional>
+		</dependency>
+		
+		<!-- CDI -->
+		<dependency>
+			<groupId>javax.enterprise</groupId>
+			<artifactId>cdi-api</artifactId>
+			<version>${cdi.version}</version>
+			<scope>provided</scope>
+			<optional>true</optional>
+		</dependency>
+		
+		<dependency>
+			<groupId>javax.el</groupId>
+			<artifactId>el-api</artifactId>
+			<version>${cdi.version}</version>
+			<scope>test</scope>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.apache.openwebbeans.test</groupId>
+			<artifactId>cditest-owb</artifactId>
+			<version>${webbeans.version}</version>
+			<scope>test</scope>
+		</dependency>
+		
+		<dependency>
+			<groupId>javax.servlet</groupId>
+			<artifactId>servlet-api</artifactId>
+			<version>2.5</version>
+			<scope>test</scope>
+		</dependency>
+
+		<!-- JSR 303 Validation -->
+		<dependency>
+			<groupId>javax.validation</groupId>
+			<artifactId>validation-api</artifactId>
+			<version>${validation.version}</version>
 			<optional>true</optional>
 		</dependency>

-		<!-- Test dependencies -->
 		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-all</artifactId>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>org.hamcrest</groupId>
-			<artifactId>hamcrest-all</artifactId>
-			<version>1.1</version>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>joda-time</groupId>
-			<artifactId>joda-time</artifactId>
-			<version>1.6</version>
-			<scope>test</scope>
-		</dependency>
-
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-api</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>jcl-over-slf4j</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-log4j12</artifactId>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>log4j</groupId>
-			<artifactId>log4j</artifactId>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-validator</artifactId>
+			<version>4.2.0.Final</version>
 			<scope>test</scope>
 		</dependency>

 	</dependencies>
+	
+	<profiles>
+		<profile>
+			<id>performance-tests</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-surefire-plugin</artifactId>
+						<version>2.8</version>
+						<configuration>
+							<includes>
+								<include>**/PerformanceTests.java</include>
+							</includes>
+							<excludes>
+								<exclude>none</exclude>
+							</excludes>
+							<junitArtifactName>junit:junit-dep</junitArtifactName>
+						</configuration>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
+	</profiles>
+	
 	<build>
 		<plugins>
 			<plugin>
@@ -138,7 +167,14 @@
 			<plugin>
 				<groupId>com.mysema.maven</groupId>
 				<artifactId>maven-apt-plugin</artifactId>
-				<version>1.0.2</version>
+				<version>1.0.4</version>
+				<dependencies>
+					<dependency>
+						<groupId>com.mysema.querydsl</groupId>
+						<artifactId>querydsl-apt</artifactId>
+						<version>${querydsl.version}</version>
+					</dependency>
+				</dependencies>
 				<executions>
 					<execution>
 						<phase>generate-test-sources</phase>
@@ -154,15 +190,5 @@
 			</plugin>
 		</plugins>
 	</build>
-
-	<repositories>
-		<repository>
-			<id>querydsl</id>
-			<name>Mysema QueryDsl</name>
-			<url>http://source.mysema.com/maven2/releases</url>
-			<snapshots>
-				<enabled>false</enabled>
-			</snapshots>
-		</repository>
-	</repositories>
+	
 </project>
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/CannotGetMongoDbConnectionException.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/CannotGetMongoDbConnectionException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -16,42 +16,51 @@
 package org.springframework.data.mongodb;

 import org.springframework.dao.DataAccessResourceFailureException;
+import org.springframework.data.authentication.UserCredentials;

+/**
+ * Exception being thrown in case we cannot connect to a MongoDB instance.
+ * 
+ * @author Oliver Gierke
+ */
 public class CannotGetMongoDbConnectionException extends DataAccessResourceFailureException {

-	private String username;
-
-	private char[] password;
-
-	private String database;
+	private final UserCredentials credentials;
+	private final String database;

 	private static final long serialVersionUID = 1172099106475265589L;

 	public CannotGetMongoDbConnectionException(String msg, Throwable cause) {
 		super(msg, cause);
+		this.database = null;
+		this.credentials = UserCredentials.NO_CREDENTIALS;
 	}

 	public CannotGetMongoDbConnectionException(String msg) {
-		super(msg);
+		this(msg, null, UserCredentials.NO_CREDENTIALS);
 	}

-	public CannotGetMongoDbConnectionException(String msg, String database, String username, char[] password) {
+	public CannotGetMongoDbConnectionException(String msg, String database, UserCredentials credentials) {
 		super(msg);
-		this.username = username;
-		this.password = password == null ? null : password.clone();
 		this.database = database;
+		this.credentials = credentials;
 	}

-	public String getUsername() {
-		return username;
-	}
-
-	public char[] getPassword() {
-		return password;
+	/**
+	 * Returns the {@link UserCredentials} that were used when trying to connect to the MongoDB instance.
+	 * 
+	 * @return
+	 */
+	public UserCredentials getCredentials() {
+		return this.credentials;
 	}

+	/**
+	 * Returns the name of the database trying to be accessed.
+	 * 
+	 * @return
+	 */
 	public String getDatabase() {
 		return database;
 	}
-
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoConfiguration.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/AbstractMongoConfiguration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2011-2012 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.
@@ -15,88 +15,180 @@
 */
 package org.springframework.data.mongodb.config;

+import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;

-import com.mongodb.Mongo;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.type.filter.AnnotationTypeFilter;
 import org.springframework.data.annotation.Persistent;
 import org.springframework.data.authentication.UserCredentials;
-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.MappingMongoConverter;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;

+import com.mongodb.Mongo;
+
+/**
+ * Base class for Spring Data MongoDB configuration using JavaConfig.
+ * 
+ * @author Mark Pollack
+ * @author Oliver Gierke
+ */
@Configuration
 public abstract class AbstractMongoConfiguration {

-	public abstract String getDatabaseName();
+	/**
+	 * Return the name of the database to connect to.
+	 * 
+	 * @return must not be {@literal null}.
+	 */
+	protected abstract String getDatabaseName();

+	/**
+	 * Return the {@link Mongo} instance to connect to.
+	 * 
+	 * @return
+	 * @throws Exception
+	 */
 	@Bean
 	public abstract Mongo mongo() throws Exception;

+	/**
+	 * Creates a {@link MongoTemplate}.
+	 * 
+	 * @return
+	 * @throws Exception
+	 */
 	@Bean
 	public MongoTemplate mongoTemplate() throws Exception {
 		return new MongoTemplate(mongoDbFactory(), mappingMongoConverter());
 	}

+	/**
+	 * Creates a {@link SimpleMongoDbFactory} to be used by the {@link MongoTemplate}. Will use the {@link Mongo} instance
+	 * configured in {@link #mongo()}.
+	 * 
+	 * @see #mongo()
+	 * @see #mongoTemplate()
+	 * @return
+	 * @throws Exception
+	 */
 	@Bean
-	public MongoDbFactory mongoDbFactory() throws Exception {
-		if (getUserCredentials() == null) {
+	public SimpleMongoDbFactory mongoDbFactory() throws Exception {
+
+		UserCredentials credentials = getUserCredentials();
+
+		if (credentials == null) {
 			return new SimpleMongoDbFactory(mongo(), getDatabaseName());
 		} else {
-			return new SimpleMongoDbFactory(mongo(), getDatabaseName(), getUserCredentials());
+			return new SimpleMongoDbFactory(mongo(), getDatabaseName(), credentials);
 		}
 	}

-	public String getMappingBasePackage() {
-		return "";
+	/**
+	 * Return the base package to scan for mapped {@link Document}s. Will return the package name of the configuration
+	 * class' (the concrete class, not this one here) by default. So if you have a {@code com.acme.AppConfig} extending
+	 * {@link AbstractMongoConfiguration} the base package will be considered {@code com.acme} unless the method is
+	 * overriden to implement alternate behaviour.
+	 * 
+	 * @return the base package to scan for mapped {@link Document} classes or {@literal null} to not enable scanning for
+	 *         entities.
+	 */
+	protected String getMappingBasePackage() {
+		return getClass().getPackage().getName();
 	}

-	public UserCredentials getUserCredentials() {
+	/**
+	 * Return {@link UserCredentials} to be used when connecting to the MongoDB instance or {@literal null} if none shall
+	 * be used.
+	 * 
+	 * @return
+	 */
+	protected UserCredentials getUserCredentials() {
 		return null;
 	}

+	/**
+	 * Creates a {@link MongoMappingContext} equipped with entity classes scanned from the mapping base package.
+	 * 
+	 * @see #getMappingBasePackage()
+	 * @return
+	 * @throws ClassNotFoundException
+	 */
 	@Bean
-	public MongoMappingContext mongoMappingContext() throws ClassNotFoundException, LinkageError {
+	public MongoMappingContext mongoMappingContext() throws ClassNotFoundException {
+
 		MongoMappingContext mappingContext = new MongoMappingContext();
+		mappingContext.setInitialEntitySet(getInitialEntitySet());
+		mappingContext.setSimpleTypeHolder(customConversions().getSimpleTypeHolder());
+		mappingContext.initialize();
+
+		return mappingContext;
+	}
+
+	/**
+	 * Register custom {@link Converter}s in a {@link CustomConversions} object if required. These
+	 * {@link CustomConversions} will be registered with the {@link #mappingMongoConverter()} and
+	 * {@link #mongoMappingContext()}. Returns an empty {@link CustomConversions} instance by default.
+	 * 
+	 * @return must not be {@literal null}.
+	 */
+	@Bean
+	public CustomConversions customConversions() {
+		return new CustomConversions(Collections.emptyList());
+	}
+
+	/**
+	 * Creates a {@link MappingMongoConverter} using the configured {@link #mongoDbFactory()} and
+	 * {@link #mongoMappingContext()}. Will get {@link #customConversions()} applied.
+	 * 
+	 * @see #customConversions()
+	 * @see #mongoMappingContext()
+	 * @see #mongoDbFactory()
+	 * @return
+	 * @throws Exception
+	 */
+	@Bean
+	public MappingMongoConverter mappingMongoConverter() throws Exception {
+		MappingMongoConverter converter = new MappingMongoConverter(mongoDbFactory(), mongoMappingContext());
+		converter.setCustomConversions(customConversions());
+		return converter;
+	}
+
+	/**
+	 * Scans the mapping base package for classes annotated with {@link Document}.
+	 * 
+	 * @see #getMappingBasePackage()
+	 * @return
+	 * @throws ClassNotFoundException
+	 */
+	protected Set<Class<?>> getInitialEntitySet() throws ClassNotFoundException {
+
 		String basePackage = getMappingBasePackage();
+		Set<Class<?>> initialEntitySet = new HashSet<Class<?>>();
+
 		if (StringUtils.hasText(basePackage)) {
 			ClassPathScanningCandidateComponentProvider componentProvider = new ClassPathScanningCandidateComponentProvider(
 					false);
 			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Document.class));
 			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Persistent.class));

-			Set<Class<?>> initialEntitySet = new HashSet<Class<?>>();
 			for (BeanDefinition candidate : componentProvider.findCandidateComponents(basePackage)) {
-				initialEntitySet.add(ClassUtils.forName(candidate.getBeanClassName(), mappingContext.getClass()
-						.getClassLoader()));
+				initialEntitySet.add(ClassUtils.forName(candidate.getBeanClassName(),
+						AbstractMongoConfiguration.class.getClassLoader()));
 			}
-			mappingContext.setInitialEntitySet(initialEntitySet);
 		}
-		return mappingContext;
-	}

-	@Bean
-	public MappingMongoConverter mappingMongoConverter() throws Exception {
-		MappingMongoConverter converter = new MappingMongoConverter(mongoDbFactory(), mongoMappingContext());
-		afterMappingMongoConverterCreation(converter);
-		return converter;
-	}
-
-	/**
-	 * Hook that allows post-processing after the MappingMongoConverter has been successfully created.
-	 * 
-	 * @param converter
-	 */
-	protected void afterMappingMongoConverterCreation(MappingMongoConverter converter) {
+		return initialEntitySet;
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/BeanNames.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/BeanNames.java
@@ -25,4 +25,5 @@ public abstract class BeanNames {
 	static final String INDEX_HELPER = "indexCreationHelper";
 	static final String MONGO = "mongo";
 	static final String DB_FACTORY = "mongoDbFactory";
+	static final String VALIDATING_EVENT_LISTENER = "validatingMongoEventListener";
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MappingMongoConverterParser.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MappingMongoConverterParser.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -13,7 +13,6 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.config;

 import static org.springframework.data.mongodb.config.BeanNames.*;
@@ -30,12 +29,14 @@ import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.beans.factory.config.BeanDefinition;
 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.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 import org.springframework.beans.factory.support.GenericBeanDefinition;
 import org.springframework.beans.factory.support.ManagedList;
 import org.springframework.beans.factory.support.ManagedSet;
+import org.springframework.beans.factory.support.RootBeanDefinition;
 import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
 import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
@@ -47,23 +48,31 @@ import org.springframework.core.type.filter.AnnotationTypeFilter;
 import org.springframework.core.type.filter.AssignableTypeFilter;
 import org.springframework.core.type.filter.TypeFilter;
 import org.springframework.data.annotation.Persistent;
+import org.springframework.data.config.BeanComponentDefinitionBuilder;
 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.Document;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
+import org.springframework.data.mongodb.core.mapping.event.ValidatingMongoEventListener;
 import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;
 import org.springframework.util.xml.DomUtils;
 import org.w3c.dom.Element;

 /**
- * @author Jon Brisbin <jbrisbin@vmware.com>
+ * Bean definition parser for the {@code mapping-converter} element.
+ * 
+ * @author Jon Brisbin
 * @author Oliver Gierke
+ * @author Maciej Walkowiak
 */
 public class MappingMongoConverterParser extends AbstractBeanDefinitionParser {

 	private static final String BASE_PACKAGE = "base-package";
+	private static final boolean jsr303Present = ClassUtils.isPresent("javax.validation.Validator",
+			MappingMongoConverterParser.class.getClassLoader());

 	@Override
 	protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
@@ -107,34 +116,86 @@ public class MappingMongoConverterParser extends AbstractBeanDefinitionParser {
 			registry.registerBeanDefinition(INDEX_HELPER, indexHelperBuilder.getBeanDefinition());
 		}

+		BeanDefinition validatingMongoEventListener = potentiallyCreateValidatingMongoEventListener(element, parserContext);
+
+		if (validatingMongoEventListener != null) {
+			registry.registerBeanDefinition(VALIDATING_EVENT_LISTENER, validatingMongoEventListener);
+		}
+
 		return converterBuilder.getBeanDefinition();
 	}

+	private BeanDefinition potentiallyCreateValidatingMongoEventListener(Element element, ParserContext parserContext) {
+
+		String disableValidation = element.getAttribute("disable-validation");
+		boolean validationDisabled = StringUtils.hasText(disableValidation) && Boolean.valueOf(disableValidation);
+
+		if (!validationDisabled) {
+
+			BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition();
+			RuntimeBeanReference validator = getValidator(builder, parserContext);
+
+			if (validator != null) {
+
+				builder.getRawBeanDefinition().setBeanClass(ValidatingMongoEventListener.class);
+				builder.addConstructorArgValue(validator);
+
+				return builder.getBeanDefinition();
+			}
+		}
+
+		return null;
+	}
+
+	private RuntimeBeanReference getValidator(Object source, ParserContext parserContext) {
+
+		if (!jsr303Present) {
+			return null;
+		}
+
+		RootBeanDefinition validatorDef = new RootBeanDefinition(
+				"org.springframework.validation.beanvalidation.LocalValidatorFactoryBean");
+		validatorDef.setSource(source);
+		validatorDef.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
+		String validatorName = parserContext.getReaderContext().registerWithGeneratedName(validatorDef);
+		parserContext.registerComponent(new BeanComponentDefinition(validatorDef, validatorName));
+
+		return new RuntimeBeanReference(validatorName);
+	}
+
 	private String potentiallyCreateMappingContext(Element element, ParserContext parserContext,
 			BeanDefinition conversionsDefinition) {

 		String ctxRef = element.getAttribute("mapping-context-ref");
-		if (!StringUtils.hasText(ctxRef)) {
-			BeanDefinitionBuilder mappingContextBuilder = BeanDefinitionBuilder
-					.genericBeanDefinition(MongoMappingContext.class);

-			Set<String> classesToAdd = getInititalEntityClasses(element, mappingContextBuilder);
-			if (classesToAdd != null) {
-				mappingContextBuilder.addPropertyValue("initialEntitySet", classesToAdd);
-			}
-
-			if (conversionsDefinition != null) {
-				AbstractBeanDefinition simpleTypesDefinition = new GenericBeanDefinition();
-				simpleTypesDefinition.setFactoryBeanName("customConversions");
-				simpleTypesDefinition.setFactoryMethodName("getSimpleTypeHolder");
-
-				mappingContextBuilder.addPropertyValue("simpleTypeHolder", simpleTypesDefinition);
-			}
-
-			parserContext.getRegistry().registerBeanDefinition(MAPPING_CONTEXT, mappingContextBuilder.getBeanDefinition());
-			ctxRef = MAPPING_CONTEXT;
+		if (StringUtils.hasText(ctxRef)) {
+			return ctxRef;
 		}

+		BeanComponentDefinitionBuilder componentDefinitionBuilder = new BeanComponentDefinitionBuilder(element,
+				parserContext);
+
+		BeanDefinitionBuilder mappingContextBuilder = BeanDefinitionBuilder
+				.genericBeanDefinition(MongoMappingContext.class);
+
+		Set<String> classesToAdd = getInititalEntityClasses(element, mappingContextBuilder);
+		if (classesToAdd != null) {
+			mappingContextBuilder.addPropertyValue("initialEntitySet", classesToAdd);
+		}
+
+		if (conversionsDefinition != null) {
+			AbstractBeanDefinition simpleTypesDefinition = new GenericBeanDefinition();
+			simpleTypesDefinition.setFactoryBeanName("customConversions");
+			simpleTypesDefinition.setFactoryMethodName("getSimpleTypeHolder");
+
+			mappingContextBuilder.addPropertyValue("simpleTypeHolder", simpleTypesDefinition);
+		}
+
+		parserContext.getRegistry().registerBeanDefinition(MAPPING_CONTEXT, mappingContextBuilder.getBeanDefinition());
+		ctxRef = MAPPING_CONTEXT;
+
+		parserContext.registerBeanComponent(componentDefinitionBuilder.getComponent(mappingContextBuilder, ctxRef));
+
 		return ctxRef;
 	}

@@ -143,11 +204,11 @@ public class MappingMongoConverterParser extends AbstractBeanDefinitionParser {
 		List<Element> customConvertersElements = DomUtils.getChildElementsByTagName(element, "custom-converters");

 		if (customConvertersElements.size() == 1) {
-			
+
 			Element customerConvertersElement = customConvertersElements.get(0);
 			ManagedList<BeanMetadataElement> converterBeans = new ManagedList<BeanMetadataElement>();
 			List<Element> converterElements = DomUtils.getChildElementsByTagName(customerConvertersElement, "converter");
-			
+
 			if (converterElements != null) {
 				for (Element listenerElement : converterElements) {
 					converterBeans.add(parseConverter(listenerElement, parserContext));
@@ -158,9 +219,9 @@ public class MappingMongoConverterParser extends AbstractBeanDefinitionParser {
 			String packageToScan = customerConvertersElement.getAttribute(BASE_PACKAGE);
 			if (StringUtils.hasText(packageToScan)) {
 				ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(true);
-				provider.addExcludeFilter(new NegatingFilter(new AssignableTypeFilter(Converter.class), new AssignableTypeFilter(
-						GenericConverter.class)));
-	
+				provider.addExcludeFilter(new NegatingFilter(new AssignableTypeFilter(Converter.class),
+						new AssignableTypeFilter(GenericConverter.class)));
+
 				for (BeanDefinition candidate : provider.findCandidateComponents(packageToScan)) {
 					converterBeans.add(candidate);
 				}
@@ -221,7 +282,7 @@ public class MappingMongoConverterParser extends AbstractBeanDefinitionParser {

 	/**
 	 * {@link TypeFilter} that returns {@literal false} in case any of the given delegates matches.
-	 *
+	 * 
 	 * @author Oliver Gierke
 	 */
 	private static class NegatingFilter implements TypeFilter {
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoDbFactoryParser.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoDbFactoryParser.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 by the original author(s).
+ * Copyright 2011-2012 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.
@@ -15,19 +15,19 @@
 */
 package org.springframework.data.mongodb.config;

-import static org.springframework.data.mongodb.config.BeanNames.*;
-import static org.springframework.data.mongodb.config.ParsingUtils.*;
+import static org.springframework.data.config.ParsingUtils.*;
+import static org.springframework.data.mongodb.config.MongoParsingUtils.*;

 import org.springframework.beans.factory.BeanDefinitionStoreException;
 import org.springframework.beans.factory.config.BeanDefinition;
-import org.springframework.beans.factory.config.RuntimeBeanReference;
+import org.springframework.beans.factory.parsing.BeanComponentDefinition;
 import org.springframework.beans.factory.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
-import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
 import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.beans.factory.xml.ParserContext;
 import org.springframework.data.authentication.UserCredentials;
+import org.springframework.data.config.BeanComponentDefinitionBuilder;
 import org.springframework.data.mongodb.core.MongoFactoryBean;
 import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
 import org.springframework.util.StringUtils;
@@ -44,19 +44,29 @@ import com.mongodb.MongoURI;
 */
 public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {

+	/* 
+	 * (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)
+	 */
 	@Override
 	protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
 			throws BeanDefinitionStoreException {
-		String id = element.getAttribute("id");
-		if (!StringUtils.hasText(id)) {
-			id = DB_FACTORY;
-		}
-		return id;
+
+		String id = super.resolveId(element, definition, parserContext);
+		return StringUtils.hasText(id) ? id : BeanNames.DB_FACTORY;
 	}

+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#parseInternal(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
+	 */
 	@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");
@@ -64,12 +74,11 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {

 		// Common setup
 		BeanDefinitionBuilder dbFactoryBuilder = BeanDefinitionBuilder.genericBeanDefinition(SimpleMongoDbFactory.class);
-		ParsingUtils.setPropertyValue(element, dbFactoryBuilder, "write-concern", "writeConcern");
+		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!",
-						parserContext.extractSource(element));
+				parserContext.getReaderContext().error("Configure either Mongo URI or details individually!", source);
 			}

 			dbFactoryBuilder.addConstructorArgValue(getMongoUri(uri));
@@ -77,19 +86,26 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		}

 		// Defaulting
-		mongoRef = StringUtils.hasText(mongoRef) ? mongoRef : registerMongoBeanDefinition(element, parserContext);
-		dbname = StringUtils.hasText(dbname) ? dbname : "db";
+		if (StringUtils.hasText(mongoRef)) {
+			dbFactoryBuilder.addConstructorArgReference(mongoRef);
+		} else {
+			dbFactoryBuilder.addConstructorArgValue(registerMongoBeanDefinition(element, parserContext));
+		}

-		dbFactoryBuilder.addConstructorArgValue(new RuntimeBeanReference(mongoRef));
+		dbname = StringUtils.hasText(dbname) ? dbname : "db";
 		dbFactoryBuilder.addConstructorArgValue(dbname);

 		if (userCredentials != null) {
 			dbFactoryBuilder.addConstructorArgValue(userCredentials);
 		}

-		ParsingUtils.registerWriteConcernPropertyEditor(parserContext.getRegistry());
+		BeanDefinitionBuilder writeConcernPropertyEditorBuilder = getWriteConcernPropertyEditorBuilder();

-		return getSourceBeanDefinition(dbFactoryBuilder, parserContext, element);
+		BeanComponentDefinition component = helper.getComponent(writeConcernPropertyEditorBuilder);
+		parserContext.registerBeanComponent(component);
+
+		return (AbstractBeanDefinition) helper.getComponentIdButFallback(dbFactoryBuilder, BeanNames.DB_FACTORY)
+				.getBeanDefinition();
 	}

 	/**
@@ -100,14 +116,13 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 	 * @param parserContext must not be {@literal null}.
 	 * @return
 	 */
-	private String registerMongoBeanDefinition(Element element, ParserContext parserContext) {
+	private BeanDefinition registerMongoBeanDefinition(Element element, ParserContext parserContext) {

 		BeanDefinitionBuilder mongoBuilder = BeanDefinitionBuilder.genericBeanDefinition(MongoFactoryBean.class);
-		ParsingUtils.setPropertyValue(element, mongoBuilder, "host");
-		ParsingUtils.setPropertyValue(element, mongoBuilder, "port");
+		setPropertyValue(mongoBuilder, element, "host");
+		setPropertyValue(mongoBuilder, element, "port");

-		return BeanDefinitionReaderUtils.registerWithGeneratedName(mongoBuilder.getBeanDefinition(),
-				parserContext.getRegistry());
+		return getSourceBeanDefinition(mongoBuilder, parserContext, element);
 	}

 	/**
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoNamespaceHandler.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoNamespaceHandler.java
@@ -16,7 +16,9 @@
 package org.springframework.data.mongodb.config;

 import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
-import org.springframework.data.mongodb.repository.config.MongoRepositoryConfigParser;
+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 based repositories.
@@ -32,7 +34,10 @@ public class MongoNamespaceHandler extends NamespaceHandlerSupport {
 	*/
 	public void init() {

-		registerBeanDefinitionParser("repositories", new MongoRepositoryConfigParser());
+		RepositoryConfigurationExtension extension = new MongoRepositoryConfigurationExtension();
+		RepositoryBeanDefinitionParser repositoryBeanDefinitionParser = new RepositoryBeanDefinitionParser(extension);
+
+		registerBeanDefinitionParser("repositories", repositoryBeanDefinitionParser);
 		registerBeanDefinitionParser("mapping-converter", new MappingMongoConverterParser());
 		registerBeanDefinitionParser("mongo", new MongoParser());
 		registerBeanDefinitionParser("db-factory", new MongoDbFactoryParser());
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParser.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParser.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 the original author or authors.
+ * Copyright 2011-2012 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.
@@ -13,20 +13,20 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.config;

 import java.util.Map;

-import org.springframework.beans.factory.BeanDefinitionStoreException;
+import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.CustomEditorConfigurer;
-import org.springframework.beans.factory.support.AbstractBeanDefinition;
+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.BeanDefinitionReaderUtils;
-import org.springframework.beans.factory.support.BeanDefinitionRegistry;
 import org.springframework.beans.factory.support.ManagedMap;
-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.BeanComponentDefinitionBuilder;
+import org.springframework.data.config.ParsingUtils;
 import org.springframework.data.mongodb.core.MongoFactoryBean;
 import org.springframework.util.StringUtils;
 import org.w3c.dom.Element;
@@ -35,54 +35,59 @@ import org.w3c.dom.Element;
 * Parser for &lt;mongo;gt; definitions.
 * 
 * @author Mark Pollack
+ * @author Oliver Gierke
 */
-public class MongoParser extends AbstractSingleBeanDefinitionParser {
+public class MongoParser implements BeanDefinitionParser {

-	@Override
-	protected Class<?> getBeanClass(Element element) {
-		return MongoFactoryBean.class;
-	}
+	/* 
+	 * (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) {

-	@Override
-	protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
+		Object source = parserContext.extractSource(element);
+		String id = element.getAttribute("id");

-		ParsingUtils.setPropertyValue(element, builder, "port", "port");
-		ParsingUtils.setPropertyValue(element, builder, "host", "host");
-		ParsingUtils.setPropertyValue(element, builder, "write-concern", "writeConcern");
+		BeanComponentDefinitionBuilder helper = new BeanComponentDefinitionBuilder(element, parserContext);

-		ParsingUtils.parseMongoOptions(element, builder);
-		ParsingUtils.parseReplicaSet(element, builder);
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(MongoFactoryBean.class);
+		ParsingUtils.setPropertyValue(builder, element, "port", "port");
+		ParsingUtils.setPropertyValue(builder, element, "host", "host");
+		ParsingUtils.setPropertyValue(builder, element, "write-concern", "writeConcern");

-		registerServerAddressPropertyEditor(parserContext.getRegistry());
-		ParsingUtils.registerWriteConcernPropertyEditor(parserContext.getRegistry());
+		MongoParsingUtils.parseMongoOptions(element, builder);
+		MongoParsingUtils.parseReplicaSet(element, builder);

+		String defaultedId = StringUtils.hasText(id) ? id : BeanNames.MONGO;
+
+		parserContext.pushContainingComponent(new CompositeComponentDefinition("Mongo", source));
+
+		BeanComponentDefinition mongoComponent = helper.getComponent(builder, defaultedId);
+		parserContext.registerBeanComponent(mongoComponent);
+		BeanComponentDefinition serverAddressPropertyEditor = helper.getComponent(registerServerAddressPropertyEditor());
+		parserContext.registerBeanComponent(serverAddressPropertyEditor);
+		BeanComponentDefinition writeConcernPropertyEditor = helper.getComponent(MongoParsingUtils
+				.getWriteConcernPropertyEditorBuilder());
+		parserContext.registerBeanComponent(writeConcernPropertyEditor);
+
+		parserContext.popAndRegisterContainingComponent();
+
+		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.
-	 * 
-	 * @param parserContext the ParserContext to
 	 */
-	private void registerServerAddressPropertyEditor(BeanDefinitionRegistry registry) {
+	private BeanDefinitionBuilder registerServerAddressPropertyEditor() {

-		BeanDefinitionBuilder customEditorConfigurer = BeanDefinitionBuilder
-				.genericBeanDefinition(CustomEditorConfigurer.class);
 		Map<String, String> customEditors = new ManagedMap<String, String>();
 		customEditors.put("com.mongodb.ServerAddress[]",
 				"org.springframework.data.mongodb.config.ServerAddressPropertyEditor");
-		customEditorConfigurer.addPropertyValue("customEditors", customEditors);
-		BeanDefinitionReaderUtils.registerWithGeneratedName(customEditorConfigurer.getBeanDefinition(), registry);
-	}

-	@Override
-	protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
-			throws BeanDefinitionStoreException {
-		String name = super.resolveId(element, definition, parserContext);
-		if (!StringUtils.hasText(name)) {
-			name = "mongo";
-		}
-		return name;
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(CustomEditorConfigurer.class);
+		builder.addPropertyValue("customEditors", customEditors);
+		return builder;
 	}
-}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParsingUtils.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoParsingUtils.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2011-2012 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 static org.springframework.data.config.ParsingUtils.*;
+
+import java.util.Map;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+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.MongoOptionsFactoryBean;
+import org.springframework.util.xml.DomUtils;
+import org.w3c.dom.Element;
+
+/**
+ * Utility methods for {@link BeanDefinitionParser} implementations for MongoDB.
+ * 
+ * @author Mark Pollack
+ * @author Oliver Gierke
+ */
+abstract class MongoParsingUtils {
+
+	private MongoParsingUtils() {
+
+	}
+
+	/**
+	 * Parses the mongo replica-set element.
+	 * 
+	 * @param parserContext the parser context
+	 * @param element the mongo element
+	 * @param mongoBuilder the bean definition builder to populate
+	 * @return
+	 */
+	static void parseReplicaSet(Element element, BeanDefinitionBuilder mongoBuilder) {
+		setPropertyValue(mongoBuilder, element, "replica-set", "replicaSetSeeds");
+	}
+
+	/**
+	 * Parses the mongo:options sub-element. Populates the given attribute factory with the proper attributes.
+	 * 
+	 * @return true if parsing actually occured, false otherwise
+	 */
+	static boolean parseMongoOptions(Element element, BeanDefinitionBuilder mongoBuilder) {
+		Element optionsElement = DomUtils.getChildElementByTagName(element, "options");
+		if (optionsElement == null) {
+			return false;
+		}
+
+		BeanDefinitionBuilder optionsDefBuilder = BeanDefinitionBuilder
+				.genericBeanDefinition(MongoOptionsFactoryBean.class);
+
+		setPropertyValue(optionsDefBuilder, optionsElement, "connections-per-host", "connectionsPerHost");
+		setPropertyValue(optionsDefBuilder, optionsElement, "threads-allowed-to-block-for-connection-multiplier",
+				"threadsAllowedToBlockForConnectionMultiplier");
+		setPropertyValue(optionsDefBuilder, optionsElement, "max-wait-time", "maxWaitTime");
+		setPropertyValue(optionsDefBuilder, optionsElement, "connect-timeout", "connectTimeout");
+		setPropertyValue(optionsDefBuilder, optionsElement, "socket-timeout", "socketTimeout");
+		setPropertyValue(optionsDefBuilder, optionsElement, "socket-keep-alive", "socketKeepAlive");
+		setPropertyValue(optionsDefBuilder, optionsElement, "auto-connect-retry", "autoConnectRetry");
+		setPropertyValue(optionsDefBuilder, optionsElement, "max-auto-connect-retry-time", "maxAutoConnectRetryTime");
+		setPropertyValue(optionsDefBuilder, optionsElement, "write-number", "writeNumber");
+		setPropertyValue(optionsDefBuilder, optionsElement, "write-timeout", "writeTimeout");
+		setPropertyValue(optionsDefBuilder, optionsElement, "write-fsync", "writeFsync");
+		setPropertyValue(optionsDefBuilder, optionsElement, "slave-ok", "slaveOk");
+
+		mongoBuilder.addPropertyValue("mongoOptions", optionsDefBuilder.getBeanDefinition());
+		return true;
+	}
+
+	/**
+	 * Returns the {@link BeanDefinitionBuilder} to build a {@link BeanDefinition} for a
+	 * {@link WriteConcernPropertyEditor}.
+	 * 
+	 * @return
+	 */
+	static BeanDefinitionBuilder getWriteConcernPropertyEditorBuilder() {
+
+		Map<String, Class<?>> customEditors = new ManagedMap<String, Class<?>>();
+		customEditors.put("com.mongodb.WriteConcern", WriteConcernPropertyEditor.class);
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.genericBeanDefinition(CustomEditorConfigurer.class);
+		builder.addPropertyValue("customEditors", customEditors);
+
+		return builder;
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ParsingUtils.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ParsingUtils.java
@@ -1,141 +0,0 @@
-/*
- * Copyright (c) 2011 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.
- * 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.util.Map;
-
-import org.springframework.beans.factory.config.BeanDefinition;
-import org.springframework.beans.factory.config.CustomEditorConfigurer;
-import org.springframework.beans.factory.support.AbstractBeanDefinition;
-import org.springframework.beans.factory.support.BeanDefinitionBuilder;
-import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
-import org.springframework.beans.factory.support.BeanDefinitionRegistry;
-import org.springframework.beans.factory.support.ManagedMap;
-import org.springframework.beans.factory.xml.ParserContext;
-import org.springframework.data.mongodb.core.MongoOptionsFactoryBean;
-import org.springframework.util.Assert;
-import org.springframework.util.StringUtils;
-import org.springframework.util.xml.DomUtils;
-import org.w3c.dom.Element;
-
-abstract class ParsingUtils {
-
-	/**
-	 * Parses the mongo replica-set element.
-	 * 
-	 * @param parserContext the parser context
-	 * @param element the mongo element
-	 * @param mongoBuilder the bean definition builder to populate
-	 * @return true if parsing actually occured, false otherwise
-	 */
-	static boolean parseReplicaSet(Element element, BeanDefinitionBuilder mongoBuilder) {
-
-		String replicaSetString = element.getAttribute("replica-set");
-		if (StringUtils.hasText(replicaSetString)) {
-			mongoBuilder.addPropertyValue("replicaSetSeeds", replicaSetString);
-		}
-		return true;
-
-	}
-
-	/**
-	 * Parses the mongo:options sub-element. Populates the given attribute factory with the proper attributes.
-	 * 
-	 * @return true if parsing actually occured, false otherwise
-	 */
-	static boolean parseMongoOptions(Element element, BeanDefinitionBuilder mongoBuilder) {
-		Element optionsElement = DomUtils.getChildElementByTagName(element, "options");
-		if (optionsElement == null) {
-			return false;
-		}
-
-		BeanDefinitionBuilder optionsDefBuilder = BeanDefinitionBuilder
-				.genericBeanDefinition(MongoOptionsFactoryBean.class);
-
-		setPropertyValue(optionsElement, optionsDefBuilder, "connections-per-host", "connectionsPerHost");
-		setPropertyValue(optionsElement, optionsDefBuilder, "threads-allowed-to-block-for-connection-multiplier",
-				"threadsAllowedToBlockForConnectionMultiplier");
-		setPropertyValue(optionsElement, optionsDefBuilder, "max-wait-time", "maxWaitTime");
-		setPropertyValue(optionsElement, optionsDefBuilder, "connect-timeout", "connectTimeout");
-		setPropertyValue(optionsElement, optionsDefBuilder, "socket-timeout", "socketTimeout");
-		setPropertyValue(optionsElement, optionsDefBuilder, "socket-keep-alive", "socketKeepAlive");
-		setPropertyValue(optionsElement, optionsDefBuilder, "auto-connect-retry", "autoConnectRetry");
-		setPropertyValue(optionsElement, optionsDefBuilder, "max-auto-connect-retry-time", "maxAutoConnectRetryTime");
-		setPropertyValue(optionsElement, optionsDefBuilder, "write-number", "writeNumber");
-		setPropertyValue(optionsElement, optionsDefBuilder, "write-timeout", "writeTimeout");
-		setPropertyValue(optionsElement, optionsDefBuilder, "write-fsync", "writeFsync");
-		setPropertyValue(optionsElement, optionsDefBuilder, "slave-ok", "slaveOk");
-
-		mongoBuilder.addPropertyValue("mongoOptions", optionsDefBuilder.getBeanDefinition());
-		return true;
-	}
-
-	static void setPropertyValue(Element element, BeanDefinitionBuilder builder, String attrName, String propertyName) {
-		String attr = element.getAttribute(attrName);
-		if (StringUtils.hasText(attr)) {
-			builder.addPropertyValue(propertyName, attr);
-		}
-	}
-
-	/**
-	 * Sets the property with the given attribute name on the given {@link BeanDefinitionBuilder} to the value of the
-	 * attribute with the given name.
-	 * 
-	 * @param element must not be {@literal null}.
-	 * @param builder must not be {@literal null}.
-	 * @param attrName must not be {@literal null} or empty.
-	 */
-	static void setPropertyValue(Element element, BeanDefinitionBuilder builder, String attrName) {
-		String attr = element.getAttribute(attrName);
-		if (StringUtils.hasText(attr)) {
-			builder.addPropertyValue(attrName, attr);
-		}
-	}
-
-	/**
-	 * Returns the {@link BeanDefinition} built by the given {@link BeanDefinitionBuilder} enriched with source
-	 * information derived from the given {@link Element}.
-	 * 
-	 * @param builder must not be {@literal null}.
-	 * @param context must not be {@literal null}.
-	 * @param element must not be {@literal null}.
-	 * @return
-	 */
-	static AbstractBeanDefinition getSourceBeanDefinition(BeanDefinitionBuilder builder, ParserContext context,
-			Element element) {
-		AbstractBeanDefinition definition = builder.getBeanDefinition();
-		definition.setSource(context.extractSource(element));
-		return definition;
-	}
-
-	/**
-	 * Registers a {@link WriteConcernPropertyEditor} in the given {@link BeanDefinitionRegistry}.
-	 * 
-	 * @param registry must not be {@literal null}.
-	 */
-	static void registerWriteConcernPropertyEditor(BeanDefinitionRegistry registry) {
-
-		Assert.notNull(registry);
-
-		BeanDefinitionBuilder customEditorConfigurer = BeanDefinitionBuilder
-				.genericBeanDefinition(CustomEditorConfigurer.class);
-		Map<String, Class<?>> customEditors = new ManagedMap<String, Class<?>>();
-		customEditors.put("com.mongodb.WriteConcern", WriteConcernPropertyEditor.class);
-		customEditorConfigurer.addPropertyValue("customEditors", customEditors);
-		BeanDefinitionReaderUtils.registerWithGeneratedName(customEditorConfigurer.getBeanDefinition(), registry);
-	}
-}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ServerAddressPropertyEditor.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/ServerAddressPropertyEditor.java
@@ -17,7 +17,11 @@ package org.springframework.data.mongodb.config;

 import java.beans.PropertyEditorSupport;
 import java.net.UnknownHostException;
+import java.util.HashSet;
+import java.util.Set;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.util.StringUtils;

 import com.mongodb.ServerAddress;
@@ -30,6 +34,8 @@ import com.mongodb.ServerAddress;
 */
 public class ServerAddressPropertyEditor extends PropertyEditorSupport {

+	private static final Logger LOG = LoggerFactory.getLogger(ServerAddressPropertyEditor.class);
+
 	/*
 	 * (non-Javadoc)
 	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
@@ -38,21 +44,49 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 	public void setAsText(String replicaSetString) {

 		String[] replicaSetStringArray = StringUtils.commaDelimitedListToStringArray(replicaSetString);
-		ServerAddress[] serverAddresses = new ServerAddress[replicaSetStringArray.length];
+		Set<ServerAddress> serverAddresses = new HashSet<ServerAddress>(replicaSetStringArray.length);

-		for (int i = 0; i < replicaSetStringArray.length; i++) {
+		for (String element : replicaSetStringArray) {

-			String[] hostAndPort = StringUtils.delimitedListToStringArray(replicaSetStringArray[i], ":");
+			ServerAddress address = parseServerAddress(element);

-			try {
-				serverAddresses[i] = new ServerAddress(hostAndPort[0], Integer.parseInt(hostAndPort[1]));
-			} catch (NumberFormatException e) {
-				throw new IllegalArgumentException("Could not parse port " + hostAndPort[1], e);
-			} catch (UnknownHostException e) {
-				throw new IllegalArgumentException("Could not parse host " + hostAndPort[0], e);
+			if (address != null) {
+				serverAddresses.add(address);
 			}
 		}

-		setValue(serverAddresses);
+		if (serverAddresses.isEmpty()) {
+			throw new IllegalArgumentException(
+					"Could not resolve at least one server of the replica set configuration! Validate your config!");
+		}
+
+		setValue(serverAddresses.toArray(new ServerAddress[serverAddresses.size()]));
+	}
+
+	/**
+	 * Parses the given source into a {@link ServerAddress}.
+	 * 
+	 * @param source
+	 * @return the
+	 */
+	private ServerAddress parseServerAddress(String source) {
+
+		String[] hostAndPort = StringUtils.delimitedListToStringArray(source.trim(), ":");
+
+		if (!StringUtils.hasText(source) || hostAndPort.length > 2) {
+			LOG.warn("Could not parse address source '{}'. Check your replica set configuration!", source);
+			return null;
+		}
+
+		try {
+			return hostAndPort.length == 1 ? new ServerAddress(hostAndPort[0]) : new ServerAddress(hostAndPort[0],
+					Integer.parseInt(hostAndPort[1]));
+		} catch (UnknownHostException e) {
+			LOG.warn("Could not parse host '{}'. Check your replica set configuration!", hostAndPort[0]);
+		} catch (NumberFormatException e) {
+			LOG.warn("Could not parse port '{}'. Check your replica set configuration!", hostAndPort[1]);
+		}
+
+		return null;
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/StringToWriteConcernConverter.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/StringToWriteConcernConverter.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012 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.core.convert.converter.Converter;
+
+import com.mongodb.WriteConcern;
+
+/**
+ * Converter to create {@link WriteConcern} instances from String representations.
+ * 
+ * @author Oliver Gierke
+ */
+public class StringToWriteConcernConverter implements Converter<String, WriteConcern> {
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
+	 */
+	public WriteConcern convert(String source) {
+
+		WriteConcern writeConcern = WriteConcern.valueOf(source);
+		return writeConcern != null ? writeConcern : new WriteConcern(source);
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultIndexOperations.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DefaultIndexOperations.java
@@ -16,14 +16,11 @@
 package org.springframework.data.mongodb.core;

 import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.LinkedHashMap;
 import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;

 import org.springframework.dao.DataAccessException;
 import org.springframework.data.mongodb.core.index.IndexDefinition;
+import org.springframework.data.mongodb.core.index.IndexField;
 import org.springframework.data.mongodb.core.index.IndexInfo;
 import org.springframework.data.mongodb.core.query.Order;
 import org.springframework.util.Assert;
@@ -123,25 +120,27 @@ public class DefaultIndexOperations implements IndexOperations {
 				return getIndexData(dbObjectList);
 			}

-			@SuppressWarnings("unchecked")
 			private List<IndexInfo> getIndexData(List<DBObject> dbObjectList) {

 				List<IndexInfo> indexInfoList = new ArrayList<IndexInfo>();

 				for (DBObject ix : dbObjectList) {

-					Map<String, Order> keyOrderMap = new LinkedHashMap<String, Order>();
 					DBObject keyDbObject = (DBObject) ix.get("key");
-					Iterator<?> entries = keyDbObject.toMap().entrySet().iterator();
+					int numberOfElements = keyDbObject.keySet().size();

-					while (entries.hasNext()) {
-						Entry<Object, Integer> thisEntry = (Entry<Object, Integer>) entries.next();
-						String key = thisEntry.getKey().toString();
-						int value = thisEntry.getValue();
-						if (value == 1) {
-							keyOrderMap.put(key, Order.ASCENDING);
-						} else {
-							keyOrderMap.put(key, Order.DESCENDING);
+					List<IndexField> indexFields = new ArrayList<IndexField>(numberOfElements);
+
+					for (String key : keyDbObject.keySet()) {
+
+						Object value = keyDbObject.get(key);
+
+						if (Integer.valueOf(1).equals(value)) {
+							indexFields.add(IndexField.create(key, Order.ASCENDING));
+						} else if (Integer.valueOf(-1).equals(value)) {
+							indexFields.add(IndexField.create(key, Order.DESCENDING));
+						} else if ("2d".equals(value)) {
+							indexFields.add(IndexField.geo(key));
 						}
 					}

@@ -151,12 +150,11 @@ public class DefaultIndexOperations implements IndexOperations {
 					boolean dropDuplicates = ix.containsField("dropDups") ? (Boolean) ix.get("dropDups") : false;
 					boolean sparse = ix.containsField("sparse") ? (Boolean) ix.get("sparse") : false;

-					indexInfoList.add(new IndexInfo(keyOrderMap, name, unique, dropDuplicates, sparse));
+					indexInfoList.add(new IndexInfo(indexFields, name, unique, dropDuplicates, sparse));
 				}

 				return indexInfoList;
 			}
 		});
 	}
-
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DocumentCallbackHandler.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/DocumentCallbackHandler.java
@@ -21,15 +21,16 @@ import com.mongodb.DBObject;
 import com.mongodb.MongoException;

 /**
- * An interface used by {@link MongoTemplate} for processing documents returned from a MongoDB query on a per-document basis.  
- * Implementations of this interface perform the actual work of prcoessing each document but don't need to worry about 
- * exception handling.  {@MongoException}s will be caught and translated by the calling MongoTemplate
+ * An interface used by {@link MongoTemplate} for processing documents returned from a MongoDB query on a per-document
+ * basis. Implementations of this interface perform the actual work of prcoessing each document but don't need to worry
+ * about exception handling. {@MongoException}s will be caught and translated by the calling
+ * MongoTemplate
 * 
- * An DocumentCallbackHandler is typically stateful: It keeps the result state within the object, to be available later for later
- * inspection.
+ * An DocumentCallbackHandler is typically stateful: It keeps the result state within the object, to be available later
+ * for later inspection.
 * 
 * @author Mark Pollack
- *
+ * 
 */
 public interface DocumentCallbackHandler {

--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/FindAndModifyOptions.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/FindAndModifyOptions.java
@@ -18,9 +18,9 @@ package org.springframework.data.mongodb.core;
 public class FindAndModifyOptions {

 	boolean returnNew;
-	
+
 	boolean upsert;
-	
+
 	boolean remove;

 	/**
@@ -31,17 +31,17 @@ public class FindAndModifyOptions {
 	public static FindAndModifyOptions options() {
 		return new FindAndModifyOptions();
 	}
-	
+
 	public FindAndModifyOptions returnNew(boolean returnNew) {
 		this.returnNew = returnNew;
 		return this;
 	}
-	
+
 	public FindAndModifyOptions upsert(boolean upsert) {
 		this.upsert = upsert;
 		return this;
 	}
-	
+
 	public FindAndModifyOptions remove(boolean remove) {
 		this.remove = remove;
 		return this;
@@ -58,7 +58,5 @@ public class FindAndModifyOptions {
 	public boolean isRemove() {
 		return remove;
 	}
-	
-	

 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/IndexOperations.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/IndexOperations.java
@@ -20,6 +20,7 @@ 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.
 * 
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAction.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAction.java
@@ -20,35 +20,38 @@ import com.mongodb.DBObject;
 import com.mongodb.WriteConcern;

 /**
- * Represents an action taken against the collection.  Used by {@link WriteConcernResolver} to determine a custom
+ * Represents an action taken against the collection. Used by {@link WriteConcernResolver} to determine a custom
 * WriteConcern based on this information.
 * 
- * Properties that will always be not-null are collectionName and defaultWriteConcern.  
- * The EntityClass is null only for the MongoActionOperaton.INSERT_LIST.
+ * Properties that will always be not-null are collectionName and defaultWriteConcern. The EntityClass is null only for
+ * the MongoActionOperaton.INSERT_LIST.
 * 
- * INSERT, SAVE have null query, 
- * REMOVE has null document
- * INSERT_LIST has null entityClass, document, and query.
+ * <ul>
+ * <li>INSERT, SAVE have null query</li>
+ * <li>REMOVE has null document</li>
+ * <li>INSERT_LIST has null entityClass, document, and query</li>
+ * </ul>
 * 
 * @author Mark Pollack
- *
+ * 
 */
 public class MongoAction {
-	
+
 	private String collectionName;
-	
+
 	private WriteConcern defaultWriteConcern;
-	
+
 	private Class<?> entityClass;
-	
+
 	private MongoActionOperation mongoActionOperation;
-	
+
 	private DBObject query;
-	
+
 	private DBObject document;

 	/**
 	 * Create an instance of a MongoAction
+	 * 
 	 * @param defaultWriteConcern the default write concern
 	 * @param mongoActionOperation action being taken against the collection
 	 * @param collectionName the collection name
@@ -90,7 +93,5 @@ public class MongoAction {
 	public DBObject getDocument() {
 		return document;
 	}
-	
-	
-	
+
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoActionOperation.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoActionOperation.java
@@ -16,18 +16,14 @@
 package org.springframework.data.mongodb.core;

 /**
- * Enumeration for operations on a collection.  Used with {@link MongoAction} to help determine the
- * WriteConcern to use for a given mutating operation
+ * Enumeration for operations on a collection. Used with {@link MongoAction} to help determine the WriteConcern to use
+ * for a given mutating operation
 * 
 * @author Mark Pollack
 * @see MongoAction
- *
+ * 
 */
 public enum MongoActionOperation {
-	
-		REMOVE,
-		UPDATE,
-		INSERT,
-		INSERT_LIST,
-		SAVE
+
+	REMOVE, UPDATE, INSERT, INSERT_LIST, SAVE
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAdmin.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoAdmin.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2011-2012 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.
@@ -15,32 +15,28 @@
 */
 package org.springframework.data.mongodb.core;

-import com.mongodb.DB;
-import com.mongodb.Mongo;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.springframework.data.authentication.UserCredentials;
 import org.springframework.jmx.export.annotation.ManagedOperation;
 import org.springframework.jmx.export.annotation.ManagedResource;
+import org.springframework.util.Assert;
+
+import com.mongodb.DB;
+import com.mongodb.Mongo;

 /**
 * Mongo server administration exposed via JMX annotations
 * 
 * @author Mark Pollack
 */
-
@ManagedResource(description = "Mongo Admin Operations")
 public class MongoAdmin implements MongoAdminOperations {

-	/**
-	 * Logger available to subclasses
-	 */
-	protected final Log logger = LogFactory.getLog(getClass());
-
-	private Mongo mongo;
+	private final Mongo mongo;
 	private String username;
 	private String password;

 	public MongoAdmin(Mongo mongo) {
+		Assert.notNull(mongo);
 		this.mongo = mongo;
 	}

@@ -83,11 +79,10 @@ public class MongoAdmin implements MongoAdminOperations {
 	 * @param password The password to use
 	 */
 	public void setPassword(String password) {
-
 		this.password = password;
 	}

 	DB getDB(String databaseName) {
-		return MongoDbUtils.getDB(mongo, databaseName, username, password == null ? null : password.toCharArray());
+		return MongoDbUtils.getDB(mongo, databaseName, new UserCredentials(username, password));
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoDbUtils.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoDbUtils.java
@@ -15,14 +15,16 @@
 */
 package org.springframework.data.mongodb.core;

-import com.mongodb.DB;
-import com.mongodb.Mongo;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.authentication.UserCredentials;
 import org.springframework.data.mongodb.CannotGetMongoDbConnectionException;
 import org.springframework.transaction.support.TransactionSynchronizationManager;
 import org.springframework.util.Assert;

+import com.mongodb.DB;
+import com.mongodb.Mongo;
+
 /**
 * Helper class featuring helper methods for internal MongoDb classes.
 * <p/>
@@ -36,7 +38,7 @@ import org.springframework.util.Assert;
 */
 public abstract class MongoDbUtils {

-	private static final Log LOGGER = LogFactory.getLog(MongoDbUtils.class);
+	private static final Logger LOGGER = LoggerFactory.getLogger(MongoDbUtils.class);

 	/**
 	 * Private constructor to prevent instantiation.
@@ -48,74 +50,89 @@ public abstract class MongoDbUtils {
 	/**
 	 * Obtains a {@link DB} connection for the given {@link Mongo} instance and database name
 	 * 
-	 * @param mongo The {@link Mongo} instance
-	 * @param databaseName The database name
-	 * @return The {@link DB} connection
+	 * @param mongo the {@link Mongo} instance, must not be {@literal null}.
+	 * @param databaseName the database name, must not be {@literal null} or empty.
+	 * @return the {@link DB} connection
 	 */
 	public static DB getDB(Mongo mongo, String databaseName) {
-		return doGetDB(mongo, databaseName, null, null, true);
+		return doGetDB(mongo, databaseName, UserCredentials.NO_CREDENTIALS, true);
 	}

 	/**
 	 * Obtains a {@link DB} connection for the given {@link Mongo} instance and database name
 	 * 
-	 * @param mongo The {@link Mongo} instance
-	 * @param databaseName The database name
-	 * @param username The username to authenticate with
-	 * @param password The password to authenticate with
-	 * @return The {@link DB} connection
+	 * @param mongo the {@link Mongo} instance, must not be {@literal null}.
+	 * @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
 	 */
-	public static DB getDB(Mongo mongo, String databaseName, String username, char[] password) {
-		return doGetDB(mongo, databaseName, username, password, true);
+	public static DB getDB(Mongo mongo, String databaseName, UserCredentials credentials) {
+
+		Assert.notNull(mongo, "No Mongo instance specified!");
+		Assert.hasText(databaseName, "Database name must be given!");
+		Assert.notNull(credentials, "Credentials must not be null, use UserCredentials.NO_CREDENTIALS!");
+
+		return doGetDB(mongo, databaseName, credentials, true);
 	}

-	public static DB doGetDB(Mongo mongo, String databaseName, String username, char[] password, boolean allowCreate) {
-		Assert.notNull(mongo, "No Mongo instance specified");
+	private static DB doGetDB(Mongo mongo, String databaseName, UserCredentials credentials, boolean allowCreate) {

 		DbHolder dbHolder = (DbHolder) TransactionSynchronizationManager.getResource(mongo);
-		if (dbHolder != null && !dbHolder.isEmpty()) {
-			// pre-bound Mongo DB
-			DB db = null;
-			if (TransactionSynchronizationManager.isSynchronizationActive() && dbHolder.doesNotHoldNonDefaultDB()) {
-				// Spring transaction management is active ->
-				db = dbHolder.getDB();
-				if (db != null && !dbHolder.isSynchronizedWithTransaction()) {
-					LOGGER.debug("Registering Spring transaction synchronization for existing Mongo DB");
-					TransactionSynchronizationManager.registerSynchronization(new MongoSynchronization(dbHolder, mongo));
-					dbHolder.setSynchronizedWithTransaction(true);
-				}
+
+		// Do we have a populated holder and TX sync active?
+		if (dbHolder != null && !dbHolder.isEmpty() && TransactionSynchronizationManager.isSynchronizationActive()) {
+
+			DB db = dbHolder.getDB(databaseName);
+
+			// DB found but not yet synchronized
+			if (db != null && !dbHolder.isSynchronizedWithTransaction()) {
+
+				LOGGER.debug("Registering Spring transaction synchronization for existing MongoDB {}.", databaseName);
+
+				TransactionSynchronizationManager.registerSynchronization(new MongoSynchronization(dbHolder, mongo));
+				dbHolder.setSynchronizedWithTransaction(true);
 			}
+
 			if (db != null) {
 				return db;
 			}
 		}

-		LOGGER.trace("Getting Mongo Database name=[" + databaseName + "]");
-		DB db = mongo.getDB(databaseName);
+		// Lookup fresh database instance
+		LOGGER.debug("Getting Mongo Database name=[{}]", databaseName);
+
+		DB db = mongo.getDB(databaseName);
+		boolean credentialsGiven = credentials.hasUsername() && credentials.hasPassword();

-		boolean credentialsGiven = username != null && password != null;
 		if (credentialsGiven && !db.isAuthenticated()) {
-			// Note, can only authenticate once against the same com.mongodb.DB object.
-			if (!db.authenticate(username, password)) {
-				throw new CannotGetMongoDbConnectionException("Failed to authenticate to database [" + databaseName
-						+ "], username = [" + username + "], password = [" + new String(password) + "]", databaseName, username,
-						password);
+
+			String username = credentials.getUsername();
+			String password = credentials.hasPassword() ? credentials.getPassword() : null;
+
+			synchronized (db) {
+				if (!db.authenticate(username, password == null ? null : password.toCharArray())) {
+					throw new CannotGetMongoDbConnectionException("Failed to authenticate to database [" + databaseName
+							+ "], username = [" + username + "], password = [" + password + "]", databaseName, credentials);
+				}
 			}
 		}

-		// Use same Session for further Mongo actions within the transaction.
-		// Thread object will get removed by synchronization at transaction completion.
+		// TX sync active, bind new database to thread
 		if (TransactionSynchronizationManager.isSynchronizationActive()) {
-			// We're within a Spring-managed transaction, possibly from JtaTransactionManager.
-			LOGGER.debug("Registering Spring transaction synchronization for new Hibernate Session");
+
+			LOGGER.debug("Registering Spring transaction synchronization for MongoDB instance {}.", databaseName);
+
 			DbHolder holderToUse = dbHolder;
+
 			if (holderToUse == null) {
-				holderToUse = new DbHolder(db);
+				holderToUse = new DbHolder(databaseName, db);
 			} else {
-				holderToUse.addDB(db);
+				holderToUse.addDB(databaseName, db);
 			}
+
 			TransactionSynchronizationManager.registerSynchronization(new MongoSynchronization(holderToUse, mongo));
 			holderToUse.setSynchronizedWithTransaction(true);
+
 			if (holderToUse != dbHolder) {
 				TransactionSynchronizationManager.bindResource(mongo, holderToUse);
 			}
@@ -139,11 +156,12 @@ public abstract class MongoDbUtils {
 	 * @return whether the DB is transactional
 	 */
 	public static boolean isDBTransactional(DB db, Mongo mongo) {
+
 		if (mongo == null) {
 			return false;
 		}
 		DbHolder dbHolder = (DbHolder) TransactionSynchronizationManager.getResource(mongo);
-		return (dbHolder != null && dbHolder.containsDB(db));
+		return dbHolder != null && dbHolder.containsDB(db);
 	}

 	/**
@@ -152,6 +170,7 @@ public abstract class MongoDbUtils {
 	 * @param db the DB to close (may be <code>null</code>)
 	 */
 	public static void closeDB(DB db) {
+
 		if (db != null) {
 			LOGGER.debug("Closing Mongo DB object");
 			try {
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoFactoryBean.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoFactoryBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -13,15 +13,14 @@
 * 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.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.springframework.beans.factory.DisposableBean;
 import org.springframework.beans.factory.FactoryBean;
+import org.springframework.beans.factory.InitializingBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.support.PersistenceExceptionTranslator;
 import org.springframework.data.mongodb.CannotGetMongoDbConnectionException;
@@ -39,12 +38,10 @@ import com.mongodb.WriteConcern;
 * @author Oliver Gierke
 * @since 1.0
 */
-public class MongoFactoryBean implements FactoryBean<Mongo>, PersistenceExceptionTranslator {
+public class MongoFactoryBean implements FactoryBean<Mongo>, InitializingBean, DisposableBean,
+		PersistenceExceptionTranslator {

-	/**
-	 * Logger, available to subclasses.
-	 */
-	protected final Log logger = LogFactory.getLog(getClass());
+	private Mongo mongo;

 	private MongoOptions mongoOptions;
 	private String host;
@@ -89,34 +86,7 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, PersistenceExceptio
 	}

 	public Mongo getObject() throws Exception {
-
-		Mongo mongo;
-
-		ServerAddress defaultOptions = new ServerAddress();
-
-		if (mongoOptions == null) {
-			mongoOptions = new MongoOptions();
-		}
-
-		if (replicaPair != null) {
-			if (replicaPair.size() < 2) {
-				throw new CannotGetMongoDbConnectionException("A replica pair must have two server entries");
-			}
-			mongo = new Mongo(replicaPair.get(0), replicaPair.get(1), mongoOptions);
-		} else if (replicaSetSeeds != null) {
-			mongo = new Mongo(replicaSetSeeds, mongoOptions);
-		} else {
-			String mongoHost = host != null ? host : defaultOptions.getHost();
-			mongo = port != null ? new Mongo(new ServerAddress(mongoHost, port), mongoOptions) : new Mongo(mongoHost,
-					mongoOptions);
-		}
-
-		if (writeConcern != null) {
-			mongo.setWriteConcern(writeConcern);
-		}
-
 		return mongo;
-
 	}

 	/*
@@ -142,4 +112,45 @@ public class MongoFactoryBean implements FactoryBean<Mongo>, PersistenceExceptio
 	public DataAccessException translateExceptionIfPossible(RuntimeException ex) {
 		return exceptionTranslator.translateExceptionIfPossible(ex);
 	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
+	 */
+	public void afterPropertiesSet() throws Exception {
+
+		Mongo mongo;
+		ServerAddress defaultOptions = new ServerAddress();
+
+		if (mongoOptions == null) {
+			mongoOptions = new MongoOptions();
+		}
+
+		if (replicaPair != null) {
+			if (replicaPair.size() < 2) {
+				throw new CannotGetMongoDbConnectionException("A replica pair must have two server entries");
+			}
+			mongo = new Mongo(replicaPair.get(0), replicaPair.get(1), mongoOptions);
+		} else if (replicaSetSeeds != null) {
+			mongo = new Mongo(replicaSetSeeds, mongoOptions);
+		} else {
+			String mongoHost = host != null ? host : defaultOptions.getHost();
+			mongo = port != null ? new Mongo(new ServerAddress(mongoHost, port), mongoOptions) : new Mongo(mongoHost,
+					mongoOptions);
+		}
+
+		if (writeConcern != null) {
+			mongo.setWriteConcern(writeConcern);
+		}
+
+		this.mongo = mongo;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.beans.factory.DisposableBean#destroy()
+	 */
+	public void destroy() throws Exception {
+		this.mongo.close();
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoTemplate.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoTemplate.java
@@ -1,15 +1,11 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 the original author or authors.
 *
- * Licensed under t
-import org.springframework.util.ResourceUtils;
-
-import org.springframework.data.convert.EntityReader;
-he Apache License, Version 2.0 (the "License");
+ * 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
+ *      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,
@@ -20,27 +16,29 @@ he Apache License, Version 2.0 (the "License");
 package org.springframework.data.mongodb.core;

 import static org.springframework.data.mongodb.core.query.Criteria.*;
+import static org.springframework.data.mongodb.core.query.SerializationUtils.*;

 import java.io.IOException;
-import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Scanner;
 import java.util.Set;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.bson.types.ObjectId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.context.ApplicationEventPublisherAware;
+import org.springframework.context.ApplicationListener;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.core.convert.ConversionService;
 import org.springframework.core.io.Resource;
@@ -48,8 +46,10 @@ import org.springframework.core.io.ResourceLoader;
 import org.springframework.dao.DataAccessException;
 import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.dao.InvalidDataAccessApiUsageException;
+import org.springframework.dao.OptimisticLockingFailureException;
 import org.springframework.data.authentication.UserCredentials;
 import org.springframework.data.convert.EntityReader;
+import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mapping.model.BeanWrapper;
 import org.springframework.data.mapping.model.MappingException;
@@ -57,6 +57,7 @@ import org.springframework.data.mongodb.MongoDbFactory;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
 import org.springframework.data.mongodb.core.convert.MongoConverter;
 import org.springframework.data.mongodb.core.convert.MongoWriter;
+import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.geo.Distance;
 import org.springframework.data.mongodb.core.geo.GeoResult;
 import org.springframework.data.mongodb.core.geo.GeoResults;
@@ -108,20 +109,25 @@ import com.mongodb.util.JSON;
 * @author Graeme Rocher
 * @author Mark Pollack
 * @author Oliver Gierke
+ * @author Amol Nayak
+ * @author Patryk Wasik
 */
 public class MongoTemplate implements MongoOperations, ApplicationContextAware {

-	private static final Log LOGGER = LogFactory.getLog(MongoTemplate.class);
+	private static final Logger LOGGER = LoggerFactory.getLogger(MongoTemplate.class);
 	private static final String ID = "_id";
 	private static final WriteResultChecking DEFAULT_WRITE_RESULT_CHECKING = WriteResultChecking.NONE;
-	@SuppressWarnings("serial")
-	private static final List<String> ITERABLE_CLASSES = new ArrayList<String>() {
-		{
-			add(List.class.getName());
-			add(Collection.class.getName());
-			add(Iterator.class.getName());
-		}
-	};
+	private static final Collection<String> ITERABLE_CLASSES;
+
+	static {
+
+		Set<String> iterableClasses = new HashSet<String>();
+		iterableClasses.add(List.class.getName());
+		iterableClasses.add(Collection.class.getName());
+		iterableClasses.add(Iterator.class.getName());
+
+		ITERABLE_CLASSES = Collections.unmodifiableCollection(iterableClasses);
+	}

 	/*
 	 * WriteConcern to be used for write operations if it has been specified.
@@ -208,7 +214,6 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 				((ApplicationEventPublisherAware) mappingContext).setApplicationEventPublisher(eventPublisher);
 			}
 		}
-
 	}

 	/**
@@ -249,11 +254,14 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		this.readPreference = readPreference;
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
+	 */
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
-		String[] beans = applicationContext.getBeanNamesForType(MongoPersistentEntityIndexCreator.class);
-		if ((null == beans || beans.length == 0) && applicationContext instanceof ConfigurableApplicationContext) {
-			((ConfigurableApplicationContext) applicationContext).addApplicationListener(indexCreator);
-		}
+
+		prepareIndexCreator(applicationContext);
+
 		eventPublisher = applicationContext;
 		if (mappingContext instanceof ApplicationEventPublisherAware) {
 			((ApplicationEventPublisherAware) mappingContext).setApplicationEventPublisher(eventPublisher);
@@ -261,6 +269,30 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		resourceLoader = applicationContext;
 	}

+	/**
+	 * Inspects the given {@link ApplicationContext} for {@link MongoPersistentEntityIndexCreator} and those in turn if
+	 * they were registered for the current {@link MappingContext}. If no creator for the current {@link MappingContext}
+	 * can be found we manually add the internally created one as {@link ApplicationListener} to make sure indexes get
+	 * created appropriately for entity types persisted through this {@link MongoTemplate} instance.
+	 * 
+	 * @param context
+	 */
+	private void prepareIndexCreator(ApplicationContext context) {
+
+		String[] indexCreators = context.getBeanNamesForType(MongoPersistentEntityIndexCreator.class);
+
+		for (String creator : indexCreators) {
+			MongoPersistentEntityIndexCreator creatorBean = context.getBean(creator, MongoPersistentEntityIndexCreator.class);
+			if (creatorBean.isIndexCreatorFor(mappingContext)) {
+				return;
+			}
+		}
+
+		if (context instanceof ConfigurableApplicationContext) {
+			((ConfigurableApplicationContext) context).addApplicationListener(indexCreator);
+		}
+	}
+
 	/**
 	 * Returns the default {@link org.springframework.data.mongodb.core.core.convert.MongoConverter}.
 	 * 
@@ -333,11 +365,12 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		Assert.notNull(query);

 		DBObject queryObject = query.getQueryObject();
+		DBObject sortObject = query.getSortObject();
 		DBObject fieldsObject = query.getFieldsObject();

 		if (LOGGER.isDebugEnabled()) {
-			LOGGER.debug("find using query: " + queryObject + " fields: " + fieldsObject + " in collection: "
-					+ collectionName);
+			LOGGER.debug(String.format("Executing query: %s sort: %s fields: %s in collection: $s",
+					serializeToJsonSafely(queryObject), sortObject, fieldsObject, collectionName));
 		}

 		this.executeQueryInternal(new FindCallback(queryObject, fieldsObject), preparer, dch, collectionName);
@@ -456,7 +489,7 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		} else {
 			query.limit(1);
 			List<T> results = find(query, entityClass, collectionName);
-			return (results.isEmpty() ? null : results.get(0));
+			return results.isEmpty() ? null : results.get(0);
 		}
 	}

@@ -704,7 +737,53 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 	}

 	public void save(Object objectToSave, String collectionName) {
-		doSave(collectionName, objectToSave, this.mongoConverter);
+
+		MongoPersistentEntity<?> mongoPersistentEntity = getPersistentEntity(objectToSave.getClass());
+
+		// No optimistic locking -> simple save
+		if (!mongoPersistentEntity.hasVersionProperty()) {
+			doSave(collectionName, objectToSave, this.mongoConverter);
+			return;
+		}
+
+		doSaveVersioned(objectToSave, mongoPersistentEntity, collectionName);
+	}
+
+	private <T> void doSaveVersioned(T objectToSave, MongoPersistentEntity<?> entity, String collectionName) {
+
+		BeanWrapper<PersistentEntity<T, ?>, T> beanWrapper = BeanWrapper.create(objectToSave,
+				this.mongoConverter.getConversionService());
+		MongoPersistentProperty idProperty = entity.getIdProperty();
+		MongoPersistentProperty versionProperty = entity.getVersionProperty();
+		Object id = beanWrapper.getProperty(idProperty);
+
+		// Fresh instance -> initialize version property
+		if (id == null) {
+			beanWrapper.setProperty(versionProperty, 0);
+			doSave(collectionName, objectToSave, this.mongoConverter);
+		} else {
+
+			assertUpdateableIdIfNotSet(objectToSave);
+
+			// Create query for entity with the id and old version
+			Object version = beanWrapper.getProperty(versionProperty);
+			Query query = new Query(Criteria.where(idProperty.getName()).is(id).and(versionProperty.getName()).is(version));
+
+			// Bump version number
+			Number number = beanWrapper.getProperty(versionProperty, Number.class, false);
+			beanWrapper.setProperty(versionProperty, number.longValue() + 1);
+
+			BasicDBObject dbObject = new BasicDBObject();
+
+			maybeEmitEvent(new BeforeConvertEvent<T>(objectToSave));
+			this.mongoConverter.write(objectToSave, dbObject);
+
+			maybeEmitEvent(new BeforeSaveEvent<T>(objectToSave, dbObject));
+			Update update = Update.fromDBObject(dbObject, ID);
+
+			updateFirst(query, update, objectToSave.getClass());
+			maybeEmitEvent(new AfterSaveEvent<T>(objectToSave, dbObject));
+		}
 	}

 	protected <T> void doSave(String collectionName, T objectToSave, MongoWriter<T> writer) {
@@ -732,11 +811,13 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 				MongoAction mongoAction = new MongoAction(writeConcern, MongoActionOperation.INSERT, collectionName,
 						entityClass, dbDoc, null);
 				WriteConcern writeConcernToUse = prepareWriteConcern(mongoAction);
+				WriteResult wr;
 				if (writeConcernToUse == null) {
-					collection.insert(dbDoc);
+					wr = collection.insert(dbDoc);
 				} else {
-					collection.insert(dbDoc, writeConcernToUse);
+					wr = collection.insert(dbDoc, writeConcernToUse);
 				}
+				handleAnyWriteResultErrors(wr, dbDoc, "insert");
 				return dbDoc.get(ID);
 			}
 		});
@@ -755,11 +836,13 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 				MongoAction mongoAction = new MongoAction(writeConcern, MongoActionOperation.INSERT_LIST, collectionName, null,
 						null, null);
 				WriteConcern writeConcernToUse = prepareWriteConcern(mongoAction);
+				WriteResult wr;
 				if (writeConcernToUse == null) {
-					collection.insert(dbDocList);
+					wr = collection.insert(dbDocList);
 				} else {
-					collection.insert(dbDocList.toArray((DBObject[]) new BasicDBObject[dbDocList.size()]), writeConcernToUse);
+					wr = collection.insert(dbDocList.toArray((DBObject[]) new BasicDBObject[dbDocList.size()]), writeConcernToUse);
 				}
+				handleAnyWriteResultErrors(wr, null, "insert_list");
 				return null;
 			}
 		});
@@ -786,11 +869,13 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 				MongoAction mongoAction = new MongoAction(writeConcern, MongoActionOperation.SAVE, collectionName, entityClass,
 						dbDoc, null);
 				WriteConcern writeConcernToUse = prepareWriteConcern(mongoAction);
+				WriteResult wr;
 				if (writeConcernToUse == null) {
-					collection.save(dbDoc);
+					wr = collection.save(dbDoc);
 				} else {
-					collection.save(dbDoc, writeConcernToUse);
+					wr = collection.save(dbDoc, writeConcernToUse);
 				}
+				handleAnyWriteResultErrors(wr, dbDoc, "save");
 				return dbDoc.get(ID);
 			}
 		});
@@ -830,11 +915,8 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {

 				DBObject queryObj = query == null ? new BasicDBObject()
 						: mapper.getMappedObject(query.getQueryObject(), entity);
-				DBObject updateObj = update.getUpdateObject();
-
-				for (String key : updateObj.keySet()) {
-					updateObj.put(key, mongoConverter.convertToMongoType(updateObj.get(key)));
-				}
+				DBObject updateObj = update == null ? new BasicDBObject() : mapper.getMappedObject(update.getUpdateObject(),
+						entity);

 				if (LOGGER.isDebugEnabled()) {
 					LOGGER.debug("calling update using query: " + queryObj + " and update: " + updateObj + " in collection: "
@@ -850,6 +932,14 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 				} else {
 					wr = collection.update(queryObj, updateObj, upsert, multi, writeConcernToUse);
 				}
+
+				if (entity != null && entity.hasVersionProperty() && !multi) {
+					if (wr.getN() == 0) {
+						throw new OptimisticLockingFailureException("Optimistic lock exception on saving entity: "
+								+ updateObj.toMap().toString());
+					}
+				}
+
 				handleAnyWriteResultErrors(wr, queryObj, "update with '" + updateObj + "'");
 				return wr;
 			}
@@ -873,7 +963,7 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 			return;
 		}

-		remove(getIdQueryFor(object), collection);
+		doRemove(collection, getIdQueryFor(object), object.getClass());
 	}

 	/**
@@ -938,7 +1028,7 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 						entityClass, null, queryObject);
 				WriteConcern writeConcernToUse = prepareWriteConcern(mongoAction);
 				if (LOGGER.isDebugEnabled()) {
-					LOGGER.debug("remove using query: " + queryObject + " in collection: " + collection.getName());
+					LOGGER.debug("remove using query: " + dboq + " in collection: " + collection.getName());
 				}
 				if (writeConcernToUse == null) {
 					wr = collection.remove(dboq);
@@ -996,26 +1086,15 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 			LOGGER.debug("Executing MapReduce on collection [" + command.getInput() + "], mapFunction [" + mapFunc
 					+ "], reduceFunction [" + reduceFunc + "]");
 		}
-		CommandResult commandResult = null;
-		try {
-			if (command.getOutputType() == MapReduceCommand.OutputType.INLINE) {
-				commandResult = executeCommand(commandObject, getDb().getOptions());
-			} else {
-				commandResult = executeCommand(commandObject);
-			}
-			commandResult.throwOnError();
-		} catch (RuntimeException ex) {
-			this.potentiallyConvertRuntimeException(ex);
-		}
-		String error = commandResult.getErrorMessage();
-		if (error != null) {
-			throw new InvalidDataAccessApiUsageException("Command execution failed:  Error [" + error + "], Command = "
-					+ commandObject);
-		}
+
+		CommandResult commandResult = command.getOutputType() == MapReduceCommand.OutputType.INLINE ? executeCommand(
+				commandObject, getDb().getOptions()) : executeCommand(commandObject);
+		handleCommandError(commandResult, commandObject);

 		if (LOGGER.isDebugEnabled()) {
-			LOGGER.debug("MapReduce command result = [" + commandResult + "]");
+			LOGGER.debug(String.format("MapReduce command result = [%s]", serializeToJsonSafely(commandObject)));
 		}
+
 		MapReduceOutput mapReduceOutput = new MapReduceOutput(inputCollection, commandObject, commandResult);
 		List<T> mappedResults = new ArrayList<T>();
 		DbObjectCallback<T> callback = new ReadDbObjectCallback<T>(mongoConverter, entityClass);
@@ -1040,7 +1119,7 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		if (criteria == null) {
 			dbo.put("cond", null);
 		} else {
-			dbo.put("cond", criteria.getCriteriaObject());
+			dbo.put("cond", mapper.getMappedObject(criteria.getCriteriaObject(), null));
 		}
 		// If initial document was a JavaScript string, potentially loaded by Spring's Resource abstraction, load it and
 		// convert to DBObject
@@ -1066,21 +1145,12 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		DBObject commandObject = new BasicDBObject("group", dbo);

 		if (LOGGER.isDebugEnabled()) {
-			LOGGER.debug("Executing Group with DBObject [" + commandObject.toString() + "]");
-		}
-		CommandResult commandResult = null;
-		try {
-			commandResult = executeCommand(commandObject, getDb().getOptions());
-			commandResult.throwOnError();
-		} catch (RuntimeException ex) {
-			this.potentiallyConvertRuntimeException(ex);
-		}
-		String error = commandResult.getErrorMessage();
-		if (error != null) {
-			throw new InvalidDataAccessApiUsageException("Command execution failed:  Error [" + error + "], Command = "
-					+ commandObject);
+			LOGGER.debug(String.format("Executing Group with DBObject [%s]", serializeToJsonSafely(commandObject)));
 		}

+		CommandResult commandResult = executeCommand(commandObject, getDb().getOptions());
+		handleCommandError(commandResult, commandObject);
+
 		if (LOGGER.isDebugEnabled()) {
 			LOGGER.debug("Group command result = [" + commandResult + "]");
 		}
@@ -1251,11 +1321,14 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {

 	protected <S, T> List<T> doFind(String collectionName, DBObject query, DBObject fields, Class<S> entityClass,
 			CursorPreparer preparer, DbObjectCallback<T> objectCallback) {
+
 		MongoPersistentEntity<?> entity = mappingContext.getPersistentEntity(entityClass);
+
 		if (LOGGER.isDebugEnabled()) {
-			LOGGER.debug("find using query: " + query + " fields: " + fields + " for class: " + entityClass
-					+ " in collection: " + collectionName);
+			LOGGER.debug(String.format("find using query: %s fields: %s for class: %s in collection: %s",
+					serializeToJsonSafely(query), fields, entityClass, collectionName));
 		}
+
 		return executeFindMultiInternal(new FindCallback(mapper.getMappedObject(query, entity), fields), preparer,
 				objectCallback, collectionName);
 	}
@@ -1337,13 +1410,15 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 			updateObj.put(key, mongoConverter.convertToMongoType(updateObj.get(key)));
 		}

+		DBObject mappedQuery = mapper.getMappedObject(query, entity);
+
 		if (LOGGER.isDebugEnabled()) {
-			LOGGER.debug("findAndModify using query: " + query + " fields: " + fields + " sort: " + sort + " for class: "
-					+ entityClass + " and update: " + updateObj + " in collection: " + collectionName);
+			LOGGER.debug("findAndModify using query: " + mappedQuery + " fields: " + fields + " sort: " + sort
+					+ " for class: " + entityClass + " and update: " + updateObj + " in collection: " + collectionName);
 		}

-		return executeFindOneInternal(new FindAndModifyCallback(mapper.getMappedObject(query, entity), fields, sort,
-				updateObj, options), new ReadDbObjectCallback<T>(readerToUse, entityClass), collectionName);
+		return executeFindOneInternal(new FindAndModifyCallback(mappedQuery, fields, sort, updateObj, options),
+				new ReadDbObjectCallback<T>(readerToUse, entityClass), collectionName);
 	}

 	/**
@@ -1364,14 +1439,16 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 			return;
 		}

-		try {
-			BeanWrapper.create(savedObject, mongoConverter.getConversionService()).setProperty(idProp, id);
+		ConversionService conversionService = mongoConverter.getConversionService();
+		BeanWrapper<PersistentEntity<Object, ?>, Object> wrapper = BeanWrapper.create(savedObject, conversionService);
+
+		Object idValue = wrapper.getProperty(idProp, idProp.getType(), true);
+
+		if (idValue != null) {
 			return;
-		} catch (IllegalAccessException e) {
-			throw new MappingException(e.getMessage(), e);
-		} catch (InvocationTargetException e) {
-			throw new MappingException(e.getMessage(), e);
 		}
+
+		wrapper.setProperty(idProp, id);
 	}

 	private DBCollection getAndPrepareCollection(DB db, String collectionName) {
@@ -1514,9 +1591,16 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		String error = wr.getError();

 		if (error != null) {
-
-			String message = String.format("Execution of %s%s failed: %s", operation, query == null ? "" : "' using '"
-					+ query.toString() + "' query", error);
+			String message;
+			if (operation.equals("insert") || operation.equals("save")) {
+				// assuming the insert operations will begin with insert string
+				message = String.format("Insert/Save for %s failed: %s", query, error);
+			} else if (operation.equals("insert_list")) {
+				message = String.format("Insert list failed: %s", error);
+			} else {
+				message = String.format("Execution of %s%s failed: %s", operation,
+						query == null ? "" : "' using '" + query.toString() + "' query", error);
+			}

 			if (WriteResultChecking.EXCEPTION == this.writeResultChecking) {
 				throw new DataIntegrityViolationException(message);
@@ -1539,6 +1623,27 @@ public class MongoTemplate implements MongoOperations, ApplicationContextAware {
 		return resolved == null ? ex : resolved;
 	}

+	/**
+	 * Inspects the given {@link CommandResult} for erros and potentially throws an
+	 * {@link InvalidDataAccessApiUsageException} for that error.
+	 * 
+	 * @param result must not be {@literal null}.
+	 * @param source must not be {@literal null}.
+	 */
+	private void handleCommandError(CommandResult result, DBObject source) {
+
+		try {
+			result.throwOnError();
+		} catch (MongoException ex) {
+
+			String error = result.getErrorMessage();
+			error = error == null ? "NO MESSAGE" : error;
+
+			throw new InvalidDataAccessApiUsageException("Command execution failed:  Error [" + error + "], Command = "
+					+ source, ex);
+		}
+	}
+
 	private static final MongoConverter getDefaultMongoConverter(MongoDbFactory factory) {
 		MappingMongoConverter converter = new MappingMongoConverter(factory, new MongoMappingContext());
 		converter.afterPropertiesSet();
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/QueryMapper.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/QueryMapper.java
@@ -1,145 +0,0 @@
-/*
- * Copyright (c) 2011 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.
- * 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.ArrayList;
-import java.util.Arrays;
-import java.util.Iterator;
-import java.util.List;
-
-import org.bson.types.BasicBSONList;
-import org.bson.types.ObjectId;
-import org.springframework.core.convert.ConversionException;
-import org.springframework.core.convert.ConversionService;
-import org.springframework.data.mapping.PersistentEntity;
-import org.springframework.data.mongodb.core.convert.MongoConverter;
-import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
-import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
-import org.springframework.util.Assert;
-
-import com.mongodb.BasicDBObject;
-import com.mongodb.DBObject;
-
-/**
- * A helper class to encapsulate any modifications of a Query object before it gets submitted to the database.
- * 
- * @author Jon Brisbin <jbrisbin@vmware.com>
- * @author Oliver Gierke
- */
-public class QueryMapper {
-
-	private final ConversionService conversionService;
-	private final MongoConverter converter;
-
-	/**
-	 * Creates a new {@link QueryMapper} with the given {@link MongoConverter}.
-	 * 
-	 * @param converter must not be {@literal null}.
-	 */
-	public QueryMapper(MongoConverter converter) {
-		Assert.notNull(converter);
-		this.conversionService = converter.getConversionService();
-		this.converter = converter;
-	}
-
-	/**
-	 * Replaces the property keys used in the given {@link DBObject} with the appropriate keys by using the
-	 * {@link PersistentEntity} metadata.
-	 * 
-	 * @param query
-	 * @param entity
-	 * @return
-	 */
-	public DBObject getMappedObject(DBObject query, MongoPersistentEntity<?> entity) {
-
-		DBObject newDbo = new BasicDBObject();
-
-		for (String key : query.keySet()) {
-			String newKey = key;
-			Object value = query.get(key);
-			if (isIdKey(key, entity)) {
-				if (value instanceof DBObject) {
-					DBObject valueDbo = (DBObject) value;
-					if (valueDbo.containsField("$in") || valueDbo.containsField("$nin")) {
-						String inKey = valueDbo.containsField("$in") ? "$in" : "$nin";
-						List<Object> ids = new ArrayList<Object>();
-						for (Object id : (Iterable<?>) valueDbo.get(inKey)) {
-							ids.add(convertId(id));
-						}
-						valueDbo.put(inKey, ids.toArray(new Object[ids.size()]));
-					} else {
-						value = getMappedObject((DBObject) value, entity);
-					}
-				} else {
-					value = convertId(value);
-				}
-				newKey = "_id";
-			} else if (key.startsWith("$") && key.endsWith("or")) {
-				// $or/$nor
-				BasicBSONList conditions = (BasicBSONList) value;
-				BasicBSONList newConditions = new BasicBSONList();
-				Iterator<Object> iter = conditions.iterator();
-				while (iter.hasNext()) {
-					newConditions.add(getMappedObject((DBObject) iter.next(), entity));
-				}
-				value = newConditions;
-			} else if (key.equals("$ne")) {
-				value = convertId(value);
-			} else if (value instanceof DBObject) {
-				newDbo.put(newKey, getMappedObject((DBObject) value, entity));
-				return newDbo;
-			}
-
-			newDbo.put(newKey, converter.convertToMongoType(value));
-		}
-
-		return newDbo;
-	}
-
-	/**
-	 * Returns whether the given key will be considered an id key.
-	 * 
-	 * @param key
-	 * @param entity
-	 * @return
-	 */
-	private boolean isIdKey(String key, MongoPersistentEntity<?> entity) {
-
-		if (null != entity && entity.getIdProperty() != null) {
-			MongoPersistentProperty idProperty = entity.getIdProperty();
-			return idProperty.getName().equals(key) || idProperty.getFieldName().equals(key);
-		}
-
-		return Arrays.asList("id", "_id").contains(key);
-	}
-
-	/**
-	 * Converts the given raw id value into either {@link ObjectId} or {@link String}.
-	 * 
-	 * @param id
-	 * @return
-	 */
-	public Object convertId(Object id) {
-
-		try {
-			return conversionService.convert(id, ObjectId.class);
-		} catch (ConversionException e) {
-			// Ignore
-		}
-
-		return converter.convertToMongoType(id);
-	}
-}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/SimpleMongoDbFactory.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/SimpleMongoDbFactory.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 the original author or authors.
+ * Copyright 2011-2012 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.
@@ -17,8 +17,6 @@ package org.springframework.data.mongodb.core;

 import java.net.UnknownHostException;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.springframework.beans.factory.DisposableBean;
 import org.springframework.dao.DataAccessException;
 import org.springframework.data.authentication.UserCredentials;
@@ -39,12 +37,10 @@ import com.mongodb.WriteConcern;
 */
 public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {

-	protected final Log logger = LogFactory.getLog(getClass());
-
 	private final Mongo mongo;
 	private final String databaseName;
-	private String username;
-	private String password;
+	private final boolean mongoInstanceCreated;
+	private final UserCredentials credentials;
 	private WriteConcern writeConcern;

 	/**
@@ -54,11 +50,7 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * @param databaseName database name, not be {@literal null}.
 	 */
 	public SimpleMongoDbFactory(Mongo mongo, String databaseName) {
-		Assert.notNull(mongo, "Mongo must not be null");
-		Assert.hasText(databaseName, "Database name must not be empty");
-		Assert.isTrue(databaseName.matches("[\\w-]+"), "Database name must only contain letters, numbers, underscores and dashes!");
-		this.mongo = mongo;
-		this.databaseName = databaseName;
+		this(mongo, databaseName, UserCredentials.NO_CREDENTIALS, false);
 	}

 	/**
@@ -66,14 +58,12 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * 
 	 * @param mongo Mongo instance, must not be {@literal null}.
 	 * @param databaseName Database name, must not be {@literal null}.
-	 * @param userCredentials username and password must not be {@literal null}.
+	 * @param credentials username and password.
 	 */
-	public SimpleMongoDbFactory(Mongo mongo, String databaseName, UserCredentials userCredentials) {
-		this(mongo, databaseName);
-		this.username = userCredentials.getUsername();
-		this.password = userCredentials.getPassword();
+	public SimpleMongoDbFactory(Mongo mongo, String databaseName, UserCredentials credentials) {
+		this(mongo, databaseName, credentials, false);
 	}
-	
+
 	/**
 	 * Creates a new {@link SimpleMongoDbFactory} instance from the given {@link MongoURI}.
 	 * 
@@ -82,8 +72,22 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	 * @throws UnknownHostException
 	 * @see MongoURI
 	 */
-	public SimpleMongoDbFactory(MongoURI uri) throws MongoException, UnknownHostException {		
-		this(new Mongo(uri), uri.getDatabase(), new UserCredentials(uri.getUsername(), parseChars(uri.getPassword())));
+	public SimpleMongoDbFactory(MongoURI uri) throws MongoException, UnknownHostException {
+		this(new Mongo(uri), uri.getDatabase(), new UserCredentials(uri.getUsername(), parseChars(uri.getPassword())), true);
+	}
+
+	private SimpleMongoDbFactory(Mongo mongo, String databaseName, UserCredentials credentials,
+			boolean mongoInstanceCreated) {
+
+		Assert.notNull(mongo, "Mongo must not be null");
+		Assert.hasText(databaseName, "Database name must not be empty");
+		Assert.isTrue(databaseName.matches("[\\w-]+"),
+				"Database name must only contain letters, numbers, underscores and dashes!");
+
+		this.mongo = mongo;
+		this.databaseName = databaseName;
+		this.mongoInstanceCreated = mongoInstanceCreated;
+		this.credentials = credentials == null ? UserCredentials.NO_CREDENTIALS : credentials;
 	}

 	/**
@@ -94,10 +98,6 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	public void setWriteConcern(WriteConcern writeConcern) {
 		this.writeConcern = writeConcern;
 	}
-	
-	public WriteConcern getWriteConcern() {
-		return writeConcern;
-	}

 	/*
 	 * (non-Javadoc)
@@ -115,7 +115,7 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {

 		Assert.hasText(dbName, "Database name must not be empty.");

-		DB db = MongoDbUtils.getDB(mongo, dbName, username, password == null ? null : password.toCharArray());
+		DB db = MongoDbUtils.getDB(mongo, dbName, credentials);

 		if (writeConcern != null) {
 			db.setWriteConcern(writeConcern);
@@ -125,17 +125,17 @@ public class SimpleMongoDbFactory implements DisposableBean, MongoDbFactory {
 	}

 	/**
-	 * Clean up the Mongo instance.
+	 * Clean up the Mongo instance if it was created by the factory itself.
+	 * 
+	 * @see DisposableBean#destroy()
 	 */
 	public void destroy() throws Exception {
-		mongo.close();
-	}
-	
-	public static String parseChars(char[] chars) {
-		if (chars == null) {
-			return null;
-		} else {
-			return String.valueOf(chars);
+		if (mongoInstanceCreated) {
+			mongo.close();
 		}
 	}
+
+	private static String parseChars(char[] chars) {
+		return chars == null ? null : String.valueOf(chars);
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/WriteConcernResolver.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/WriteConcernResolver.java
@@ -24,14 +24,16 @@ import com.mongodb.WriteConcern;
 * Return the passed in default WriteConcern (a property on MongoAction) if no determination can be made.
 * 
 * @author Mark Pollack
- *
+ * 
 */
 public interface WriteConcernResolver {

-		/**
-		 * Resolve the WriteConcern given the MongoAction
-		 * @param action describes the context of the Mongo action. Contains a default WriteConcern to use if one should not be resolved.
-		 * @return a WriteConcern based on the passed in MongoAction value, maybe null
-		 */
-		WriteConcern resolve(MongoAction action);
+	/**
+	 * Resolve the WriteConcern given the MongoAction
+	 * 
+	 * @param action describes the context of the Mongo action. Contains a default WriteConcern to use if one should not
+	 *          be resolved.
+	 * @return a WriteConcern based on the passed in MongoAction value, maybe null
+	 */
+	WriteConcern resolve(MongoAction action);
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/AbstractMongoConverter.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/AbstractMongoConverter.java
@@ -23,6 +23,7 @@ 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.GenericConversionService;
+import org.springframework.data.convert.EntityInstantiators;
 import org.springframework.data.mongodb.core.convert.MongoConverters.BigIntegerToObjectIdConverter;
 import org.springframework.data.mongodb.core.convert.MongoConverters.ObjectIdToBigIntegerConverter;
 import org.springframework.data.mongodb.core.convert.MongoConverters.ObjectIdToStringConverter;
@@ -39,6 +40,7 @@ public abstract class AbstractMongoConverter implements MongoConverter, Initiali

 	protected final GenericConversionService conversionService;
 	protected CustomConversions conversions = new CustomConversions();
+	protected EntityInstantiators instantiators = new EntityInstantiators();

 	/**
 	 * Creates a new {@link AbstractMongoConverter} using the given {@link GenericConversionService}.
@@ -60,6 +62,15 @@ public abstract class AbstractMongoConverter implements MongoConverter, Initiali
 		this.conversions = conversions;
 	}

+	/**
+	 * Registers {@link EntityInstantiators} to customize entity instantiation.
+	 * 
+	 * @param instantiators
+	 */
+	public void setInstantiators(EntityInstantiators instantiators) {
+		this.instantiators = instantiators == null ? new EntityInstantiators() : instantiators;
+	}
+
 	/**
 	 * Registers additional converters that will be available when using the {@link ConversionService} directly (e.g. for
 	 * id conversion). These converters are not custom conversions as they'd introduce unwanted conversions (e.g.
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/CustomConversions.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/CustomConversions.java
@@ -22,8 +22,8 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Set;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.core.GenericTypeResolver;
 import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.converter.Converter;
@@ -38,6 +38,8 @@ import org.springframework.data.mongodb.core.convert.MongoConverters.BigDecimalT
 import org.springframework.data.mongodb.core.convert.MongoConverters.BigIntegerToStringConverter;
 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.util.Assert;

@@ -52,7 +54,7 @@ import org.springframework.util.Assert;
 */
 public class CustomConversions {

-	private static final Log LOG = LogFactory.getLog(CustomConversions.class);
+	private static final Logger LOG = LoggerFactory.getLogger(CustomConversions.class);
 	private static final String READ_CONVERTER_NOT_SIMPLE = "Registering converter from %s to %s as reading converter although it doesn't convert from a Mongo supported type! You might wanna check you annotation setup at the converter implementation.";
 	private static final String WRITE_CONVERTER_NOT_SIMPLE = "Registering converter from %s to %s as writing converter although it doesn't convert to a Mongo supported type! You might wanna check you annotation setup at the converter implementation.";

@@ -89,6 +91,8 @@ public class CustomConversions {
 		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.addAll(converters);

 		for (Object c : this.converters) {
@@ -219,7 +223,7 @@ public class CustomConversions {

 	/**
 	 * 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 expexctedTargetType} is {@literal null} we will simply return the
+	 * 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.
 	 * 
 	 * @param source must not be {@literal null}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DBObjectPropertyAccessor.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DBObjectPropertyAccessor.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2012 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.Map;
+
+import org.springframework.context.expression.MapAccessor;
+import org.springframework.expression.EvaluationContext;
+import org.springframework.expression.PropertyAccessor;
+import org.springframework.expression.TypedValue;
+
+import com.mongodb.DBObject;
+
+/**
+ * {@link PropertyAccessor} to allow entity based field access to {@link DBObject}s.
+ * 
+ * @author Oliver Gierke
+ */
+class DBObjectPropertyAccessor extends MapAccessor {
+
+	static MapAccessor INSTANCE = new DBObjectPropertyAccessor();
+
+	@Override
+	public Class<?>[] getSpecificTargetClasses() {
+		return new Class[] { DBObject.class };
+	}
+
+	@Override
+	public boolean canRead(EvaluationContext context, Object target, String name) {
+		return true;
+	}
+
+	@Override
+	@SuppressWarnings("unchecked")
+	public TypedValue read(EvaluationContext context, Object target, String name) {
+
+		Map<String, Object> source = (Map<String, Object>) target;
+
+		Object value = source.get(name);
+		return value == null ? TypedValue.NULL : new TypedValue(value);
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultMongoTypeMapper.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultMongoTypeMapper.java
@@ -50,23 +50,22 @@ public class DefaultMongoTypeMapper extends DefaultTypeMapper<DBObject> implemen
 	public DefaultMongoTypeMapper() {
 		this(DEFAULT_TYPE_KEY, Arrays.asList(SimpleTypeInformationMapper.INSTANCE));
 	}
-	
+
 	public DefaultMongoTypeMapper(String typeKey) {
 		super(new DBObjectTypeAliasAccessor(typeKey));
 		this.typeKey = typeKey;
 	}
-	
-	public DefaultMongoTypeMapper(String typeKey, MappingContext<? extends PersistentEntity<?,?>, ?> mappingContext) {
+
+	public DefaultMongoTypeMapper(String typeKey, MappingContext<? extends PersistentEntity<?, ?>, ?> mappingContext) {
 		super(new DBObjectTypeAliasAccessor(typeKey), mappingContext, Arrays.asList(SimpleTypeInformationMapper.INSTANCE));
 		this.typeKey = typeKey;
 	}
-	
+
 	public DefaultMongoTypeMapper(String typeKey, List<? extends TypeInformationMapper> mappers) {
 		super(new DBObjectTypeAliasAccessor(typeKey), mappers);
 		this.typeKey = typeKey;
 	}
-	
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.convert.MongoTypeMapper#isTypeKey(java.lang.String)
@@ -75,7 +74,6 @@ public class DefaultMongoTypeMapper extends DefaultTypeMapper<DBObject> implemen
 		return typeKey == null ? false : typeKey.equals(key);
 	}

-
 	/* (non-Javadoc)
 	 * @see org.springframework.data.convert.DefaultTypeMapper#getFallbackTypeFor(java.lang.Object)
 	 */
@@ -83,29 +81,29 @@ public class DefaultMongoTypeMapper extends DefaultTypeMapper<DBObject> implemen
 	protected TypeInformation<?> getFallbackTypeFor(DBObject source) {
 		return source instanceof BasicDBList ? LIST_TYPE_INFO : MAP_TYPE_INFO;
 	}
-	
+
 	/**
 	 * 
 	 * @author Oliver Gierke
 	 */
 	public static final class DBObjectTypeAliasAccessor implements TypeAliasAccessor<DBObject> {
-		
+
 		private final String typeKey;
-		
+
 		public DBObjectTypeAliasAccessor(String typeKey) {
 			this.typeKey = typeKey;
 		}
-		
+
 		/*
 		 * (non-Javadoc)
 		 * @see org.springframework.data.convert.TypeAliasAccessor#readAliasFrom(java.lang.Object)
 		 */
 		public Object readAliasFrom(DBObject source) {
-			
+
 			if (source instanceof BasicDBList) {
 				return null;
 			}
-			
+
 			return source.get(typeKey);
 		}

--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MappingMongoConverter.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MappingMongoConverter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 by the original author(s).
+ * Copyright 2011-2012 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.
@@ -15,44 +15,43 @@
 */
 package org.springframework.data.mongodb.core.convert;

-import java.lang.reflect.Array;
-import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
-import org.springframework.context.expression.BeanFactoryResolver;
 import org.springframework.core.CollectionFactory;
 import org.springframework.core.convert.ConversionException;
 import org.springframework.core.convert.support.ConversionServiceFactory;
+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.PreferredConstructor;
 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.DefaultSpELExpressionEvaluator;
 import org.springframework.data.mapping.model.MappingException;
 import org.springframework.data.mapping.model.ParameterValueProvider;
-import org.springframework.data.mapping.model.SpELAwareParameterValueProvider;
+import org.springframework.data.mapping.model.PersistentEntityParameterValueProvider;
+import org.springframework.data.mapping.model.PropertyValueProvider;
+import org.springframework.data.mapping.model.SpELContext;
+import org.springframework.data.mapping.model.SpELExpressionEvaluator;
 import org.springframework.data.mongodb.MongoDbFactory;
-import org.springframework.data.mongodb.core.QueryMapper;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.util.ClassTypeInformation;
 import org.springframework.data.util.TypeInformation;
-import org.springframework.expression.Expression;
 import org.springframework.expression.spel.standard.SpelExpressionParser;
-import org.springframework.expression.spel.support.StandardEvaluationContext;
 import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
@@ -72,7 +71,7 @@ import com.mongodb.DBRef;
 */
 public class MappingMongoConverter extends AbstractMongoConverter implements ApplicationContextAware {

-	protected static final Log log = LogFactory.getLog(MappingMongoConverter.class);
+	protected static final Logger log = LoggerFactory.getLogger(MappingMongoConverter.class);

 	protected final MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext;
 	protected final SpelExpressionParser spelExpressionParser = new SpelExpressionParser();
@@ -81,6 +80,9 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	protected ApplicationContext applicationContext;
 	protected boolean useFieldAccessOnly = true;
 	protected MongoTypeMapper typeMapper;
+	protected String mapKeyDotReplacement = null;
+
+	private SpELContext spELContext;

 	/**
 	 * Creates a new {@link MappingMongoConverter} given the new {@link MongoDbFactory} and {@link MappingContext}.
@@ -101,6 +103,8 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		this.mappingContext = mappingContext;
 		this.typeMapper = new DefaultMongoTypeMapper(DefaultMongoTypeMapper.DEFAULT_TYPE_KEY, mappingContext);
 		this.idMapper = new QueryMapper(this);
+
+		this.spELContext = new SpELContext(DBObjectPropertyAccessor.INSTANCE);
 	}

 	/**
@@ -116,6 +120,18 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 				mappingContext) : typeMapper;
 	}

+	/**
+	 * Configure the characters dots potentially contained in a {@link Map} shall be replaced with. By default we don't do
+	 * any translation but rather reject a {@link Map} with keys containing dots causing the conversion for the entire
+	 * object to fail. If further customization of the translation is needed, have a look at
+	 * {@link #potentiallyEscapeMapKey(String)} as well as {@link #potentiallyUnescapeMapKey(String)}.
+	 * 
+	 * @param mapKeyDotReplacement the mapKeyDotReplacement to set
+	 */
+	public void setMapKeyDotReplacement(String mapKeyDotReplacement) {
+		this.mapKeyDotReplacement = mapKeyDotReplacement;
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.convert.EntityConverter#getMappingContext()
@@ -140,7 +156,9 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
 	 */
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+
 		this.applicationContext = applicationContext;
+		this.spELContext = new SpELContext(this.spELContext, applicationContext);
 	}

 	/*
@@ -151,8 +169,12 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		return read(ClassTypeInformation.from(clazz), dbo);
 	}

-	@SuppressWarnings("unchecked")
 	protected <S extends Object> S read(TypeInformation<S> type, DBObject dbo) {
+		return read(type, dbo, null);
+	}
+
+	@SuppressWarnings("unchecked")
+	protected <S extends Object> S read(TypeInformation<S> type, DBObject dbo, Object parent) {

 		if (null == dbo) {
 			return null;
@@ -164,17 +186,17 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		if (conversions.hasCustomReadTarget(dbo.getClass(), rawType)) {
 			return conversionService.convert(dbo, rawType);
 		}
-		
+
 		if (DBObject.class.isAssignableFrom(rawType)) {
 			return (S) dbo;
 		}

 		if (typeToUse.isCollectionLike() && dbo instanceof BasicDBList) {
-			return (S) readCollectionOrArray(typeToUse, (BasicDBList) dbo);
+			return (S) readCollectionOrArray(typeToUse, (BasicDBList) dbo, parent);
 		}

 		if (typeToUse.isMap()) {
-			return (S) readMap(typeToUse, dbo);
+			return (S) readMap(typeToUse, dbo, parent);
 		}

 		// Retrieve persistent entity info
@@ -184,72 +206,43 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			throw new MappingException("No mapping metadata found for " + rawType.getName());
 		}

-		return read(persistentEntity, dbo);
+		return read(persistentEntity, dbo, parent);
 	}

-	private <S extends Object> S read(final MongoPersistentEntity<S> entity, final DBObject dbo) {
+	private ParameterValueProvider<MongoPersistentProperty> getParameterProvider(MongoPersistentEntity<?> entity,
+			DBObject source, DefaultSpELExpressionEvaluator evaluator, Object parent) {

-		final StandardEvaluationContext spelCtx = new StandardEvaluationContext();
-		if (null != applicationContext) {
-			spelCtx.setBeanResolver(new BeanFactoryResolver(applicationContext));
-		}
-		if (!(dbo instanceof BasicDBList)) {
-			String[] keySet = dbo.keySet().toArray(new String[dbo.keySet().size()]);
-			for (String key : keySet) {
-				spelCtx.setVariable(key, dbo.get(key));
-			}
-		}
+		MongoDbPropertyValueProvider provider = new MongoDbPropertyValueProvider(source, evaluator, parent);
+		PersistentEntityParameterValueProvider<MongoPersistentProperty> parameterProvider = new PersistentEntityParameterValueProvider<MongoPersistentProperty>(
+				entity, provider, parent);
+		parameterProvider.setSpELEvaluator(evaluator);

-		final List<String> ctorParamNames = new ArrayList<String>();
-		final MongoPersistentProperty idProperty = entity.getIdProperty();
+		return parameterProvider;
+	}

-		ParameterValueProvider provider = new SpELAwareParameterValueProvider(spelExpressionParser, spelCtx) {
-			@Override
-			@SuppressWarnings("unchecked")
-			public <T> T getParameterValue(PreferredConstructor.Parameter<T> parameter) {
+	private <S extends Object> S read(final MongoPersistentEntity<S> entity, final DBObject dbo, Object parent) {

-				if (parameter.getKey() != null) {
-					return super.getParameterValue(parameter);
-				}
+		final DefaultSpELExpressionEvaluator evaluator = new DefaultSpELExpressionEvaluator(dbo, spELContext);

-				String name = parameter.getName();
-				TypeInformation<T> type = parameter.getType();
-				Class<T> rawType = parameter.getRawType();
-				String key = idProperty == null ? name : idProperty.getName().equals(name) ? idProperty.getFieldName() : name;
-				Object obj = dbo.get(key);
+		ParameterValueProvider<MongoPersistentProperty> provider = getParameterProvider(entity, dbo, evaluator, parent);
+		EntityInstantiator instantiator = instantiators.getInstantiatorFor(entity);
+		S instance = instantiator.createInstance(entity, provider);

-				ctorParamNames.add(name);
-				if (obj instanceof DBRef) {
-					return read(type, ((DBRef) obj).fetch());
-				} else if (obj instanceof BasicDBList) {
-					BasicDBList objAsDbList = (BasicDBList) obj;
-					return conversionService.convert(readCollectionOrArray(type, objAsDbList), rawType);
-				} else if (obj instanceof DBObject) {
-					return read(type, ((DBObject) obj));
-				} else if (null != obj && obj.getClass().isAssignableFrom(rawType)) {
-					return (T) obj;
-				} else if (null != obj) {
-					return conversionService.convert(obj, rawType);
-				}
-
-				return null;
-			}
-		};
-
-		final BeanWrapper<MongoPersistentEntity<S>, S> wrapper = BeanWrapper.create(entity, provider, conversionService);
+		final BeanWrapper<MongoPersistentEntity<S>, S> wrapper = BeanWrapper.create(instance, conversionService);
+		final S result = wrapper.getBean();

 		// Set properties not already set in the constructor
 		entity.doWithProperties(new PropertyHandler<MongoPersistentProperty>() {
 			public void doWithPersistentProperty(MongoPersistentProperty prop) {

-				boolean isConstructorProperty = ctorParamNames.contains(prop.getName());
+				boolean isConstructorProperty = entity.isConstructorArgument(prop);
 				boolean hasValueForProperty = dbo.containsField(prop.getFieldName());

 				if (!hasValueForProperty || isConstructorProperty) {
 					return;
 				}

-				Object obj = getValueInternal(prop, dbo, spelCtx, prop.getSpelExpression());
+				Object obj = getValueInternal(prop, dbo, evaluator, result);
 				wrapper.setProperty(prop, obj, useFieldAccessOnly);
 			}
 		});
@@ -258,18 +251,30 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		entity.doWithAssociations(new AssociationHandler<MongoPersistentProperty>() {
 			public void doWithAssociation(Association<MongoPersistentProperty> association) {
 				MongoPersistentProperty inverseProp = association.getInverse();
-				Object obj = getValueInternal(inverseProp, dbo, spelCtx, inverseProp.getSpelExpression());
-				try {
-					wrapper.setProperty(inverseProp, obj);
-				} catch (IllegalAccessException e) {
-					throw new MappingException(e.getMessage(), e);
-				} catch (InvocationTargetException e) {
-					throw new MappingException(e.getMessage(), e);
-				}
+				Object obj = getValueInternal(inverseProp, dbo, evaluator, result);
+
+				wrapper.setProperty(inverseProp, obj);
+
 			}
 		});

-		return wrapper.getBean();
+		return result;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.convert.MongoWriter#toDBRef(java.lang.Object, org.springframework.data.mongodb.core.mapping.MongoPersistentProperty)
+	 */
+	public DBRef toDBRef(Object object, MongoPersistentProperty referingProperty) {
+
+		org.springframework.data.mongodb.core.mapping.DBRef annotation = null;
+
+		if (referingProperty != null) {
+			annotation = referingProperty.getDBRef();
+			Assert.isTrue(annotation != null, "The referenced property has to be mapped with @DBRef!");
+		}
+
+		return createDBRef(object, annotation);
 	}

 	/**
@@ -286,7 +291,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App

 		boolean handledByCustomConverter = conversions.getCustomWriteTarget(obj.getClass(), DBObject.class) != null;
 		TypeInformation<? extends Object> type = ClassTypeInformation.from(obj.getClass());
-		
+
 		if (!handledByCustomConverter && !(dbo instanceof BasicDBList)) {
 			typeMapper.writeType(type, dbo);
 		}
@@ -345,7 +350,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		// Write the ID
 		final MongoPersistentProperty idProperty = entity.getIdProperty();
 		if (!dbo.containsField("_id") && null != idProperty) {
-			
+
 			try {
 				Object id = wrapper.getProperty(idProperty, Object.class, useFieldAccessOnly);
 				dbo.put("_id", idMapper.convertId(id));
@@ -356,13 +361,13 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		// Write the properties
 		entity.doWithProperties(new PropertyHandler<MongoPersistentProperty>() {
 			public void doWithPersistentProperty(MongoPersistentProperty prop) {
-				
+
 				if (prop.equals(idProperty)) {
 					return;
 				}
-				
+
 				Object propertyObj = wrapper.getProperty(prop, prop.getType(), useFieldAccessOnly);
-				
+
 				if (null != propertyObj) {
 					if (!conversions.isSimpleType(propertyObj.getClass())) {
 						writePropertyInternal(propertyObj, dbo, prop);
@@ -461,7 +466,6 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * 
 	 * @param collection must not be {@literal null}.
 	 * @param property must not be {@literal null}.
-	 * 
 	 * @return
 	 */
 	protected DBObject createCollection(Collection<?> collection, MongoPersistentProperty property) {
@@ -499,13 +503,9 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App

 		for (Object element : source) {

-			if (element == null) {
-				continue;
-			}
+			Class<?> elementType = element == null ? null : element.getClass();

-			Class<?> elementType = element.getClass();
-
-			if (conversions.isSimpleType(elementType)) {
+			if (elementType == null || conversions.isSimpleType(elementType)) {
 				sink.add(getPotentiallyConvertedSimpleWrite(element));
 			} else if (element instanceof Collection || elementType.isArray()) {
 				sink.add(writeCollectionInternal(asCollection(element), componentType, new BasicDBList()));
@@ -528,14 +528,14 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * @return
 	 */
 	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 = key.toString();
+				String simpleKey = potentiallyEscapeMapKey(key.toString());
 				if (val == null || conversions.isSimpleType(val.getClass())) {
 					writeSimpleInternal(val, dbo, simpleKey);
 				} else if (val instanceof Collection || val.getClass().isArray()) {
@@ -543,7 +543,8 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 							writeCollectionInternal(asCollection(val), propertyType.getMapValueType(), new BasicDBList()));
 				} else {
 					DBObject newDbo = new BasicDBObject();
-					TypeInformation<?> valueTypeInfo = propertyType.isMap() ? propertyType.getMapValueType() : ClassTypeInformation.OBJECT;
+					TypeInformation<?> valueTypeInfo = propertyType.isMap() ? propertyType.getMapValueType()
+							: ClassTypeInformation.OBJECT;
 					writeInternal(val, newDbo, valueTypeInfo);
 					dbo.put(simpleKey, newDbo);
 				}
@@ -551,10 +552,43 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 				throw new MappingException("Cannot use a complex object as a key value.");
 			}
 		}
-		
+
 		return dbo;
 	}

+	/**
+	 * Potentially replaces dots in the given map key with the configured map key replacement if configured or aborts
+	 * conversion if none is configured.
+	 * 
+	 * @see #setMapKeyDotReplacement(String)
+	 * @param source
+	 * @return
+	 */
+	protected String potentiallyEscapeMapKey(String source) {
+
+		if (!source.contains(".")) {
+			return source;
+		}
+
+		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));
+		}
+
+		return source.replaceAll("\\.", mapKeyDotReplacement);
+	}
+
+	/**
+	 * Translates the map key replacements in the given key just read with a dot in case a map key replacement has been
+	 * configured.
+	 * 
+	 * @param source
+	 * @return
+	 */
+	protected String potentiallyUnescapeMapKey(String source) {
+		return mapKeyDotReplacement == null ? source : source.replaceAll(mapKeyDotReplacement, "\\.");
+	}
+
 	/**
 	 * 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.
@@ -635,82 +669,42 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App

 	protected DBRef createDBRef(Object target, org.springframework.data.mongodb.core.mapping.DBRef dbref) {

+		Assert.notNull(target);
+
+		if (target instanceof DBRef) {
+			return (DBRef) target;
+		}
+
 		MongoPersistentEntity<?> targetEntity = mappingContext.getPersistentEntity(target.getClass());
-		if (null == targetEntity || null == targetEntity.getIdProperty()) {
-			return null;
+
+		if (null == targetEntity) {
+			throw new MappingException("No mapping metadata found for " + target.getClass());
 		}

 		MongoPersistentProperty idProperty = targetEntity.getIdProperty();
+
+		if (idProperty == null) {
+			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);
-		
+
 		if (null == id) {
 			throw new MappingException("Cannot create a reference to an object with a NULL id.");
 		}

-		String collection = dbref.collection();
-		if ("".equals(collection)) {
-			collection = targetEntity.getCollection();
-		}
+		DB db = mongoDbFactory.getDb();
+		db = dbref != null && StringUtils.hasText(dbref.db()) ? mongoDbFactory.getDb(dbref.db()) : db;

-		String dbname = dbref.db();
-		DB db = StringUtils.hasText(dbname) ? mongoDbFactory.getDb(dbname) : mongoDbFactory.getDb();
-
-		return new DBRef(db, collection, idMapper.convertId(id));
+		return new DBRef(db, targetEntity.getCollection(), idMapper.convertId(id));
 	}

-	@SuppressWarnings("unchecked")
-	protected Object getValueInternal(MongoPersistentProperty prop, DBObject dbo, StandardEvaluationContext ctx,
-			String spelExpr) {
+	protected Object getValueInternal(MongoPersistentProperty prop, DBObject dbo, SpELExpressionEvaluator eval,
+			Object parent) {

-		Object o;
-		if (null != spelExpr) {
-			Expression x = spelExpressionParser.parseExpression(spelExpr);
-			o = x.getValue(ctx);
-		} else {
-
-			Object sourceValue = dbo.get(prop.getFieldName());
-
-			if (sourceValue == null) {
-				return null;
-			}
-
-			Class<?> propertyType = prop.getType();
-
-			if (conversions.hasCustomReadTarget(sourceValue.getClass(), propertyType)) {
-				return conversionService.convert(sourceValue, propertyType);
-			}
-
-			if (sourceValue instanceof DBRef) {
-				sourceValue = ((DBRef) sourceValue).fetch();
-			}
-			if (sourceValue instanceof DBObject) {
-				if (prop.isMap()) {
-					return readMap(prop.getTypeInformation(), (DBObject) sourceValue);
-				} else if (prop.isArray() && sourceValue instanceof BasicDBObject
-						&& ((DBObject) sourceValue).keySet().size() == 0) {
-					// It's empty
-					return Array.newInstance(prop.getComponentType(), 0);
-				} else if (prop.isCollectionLike() && sourceValue instanceof BasicDBList) {
-					return readCollectionOrArray((TypeInformation<? extends Collection<?>>) prop.getTypeInformation(),
-							(BasicDBList) sourceValue);
-				}
-
-				TypeInformation<?> toType = typeMapper.readType((DBObject) sourceValue);
-
-				// It's a complex object, have to read it in
-				if (toType != null) {
-					// TODO: why do we remove the type?
-					// dbo.removeField(CUSTOM_TYPE_KEY);
-					o = read(toType, (DBObject) sourceValue);
-				} else {
-					o = read(mappingContext.getPersistentEntity(prop.getTypeInformation()), (DBObject) sourceValue);
-				}
-			} else {
-				o = sourceValue;
-			}
-		}
-		return o;
+		MongoDbPropertyValueProvider provider = new MongoDbPropertyValueProvider(dbo, spELContext, parent);
+		return provider.getPropertyValue(prop);
 	}

 	/**
@@ -718,28 +712,41 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * 
 	 * @param targetType must not be {@literal null}.
 	 * @param sourceValue must not be {@literal null}.
-	 * @return the converted {@link Collections}, will never be {@literal null}.
+	 * @return the converted {@link Collection} or array, will never be {@literal null}.
 	 */
 	@SuppressWarnings("unchecked")
-	private Collection<?> readCollectionOrArray(TypeInformation<?> targetType, BasicDBList sourceValue) {
+	private Object readCollectionOrArray(TypeInformation<?> targetType, BasicDBList sourceValue, Object parent) {

 		Assert.notNull(targetType);

+		Class<?> collectionType = targetType.getType();
+
+		if (sourceValue.isEmpty()) {
+			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(targetType.getType(), sourceValue.size());
+				.createCollection(collectionType, sourceValue.size());
+		TypeInformation<?> componentType = targetType.getComponentType();
+		Class<?> rawComponentType = componentType == null ? null : componentType.getType();

 		for (int i = 0; i < sourceValue.size(); i++) {
+
 			Object dbObjItem = sourceValue.get(i);
+
 			if (dbObjItem instanceof DBRef) {
-				items.add(read(targetType.getComponentType(), ((DBRef) dbObjItem).fetch()));
+				items.add(DBRef.class.equals(rawComponentType) ? dbObjItem : read(componentType, ((DBRef) dbObjItem).fetch(),
+						parent));
 			} else if (dbObjItem instanceof DBObject) {
-				items.add(read(targetType.getComponentType(), (DBObject) dbObjItem));
+				items.add(read(componentType, (DBObject) dbObjItem, parent));
 			} else {
-				items.add(getPotentiallyConvertedSimpleRead(dbObjItem, targetType.getComponentType().getType()));
+				items.add(getPotentiallyConvertedSimpleRead(dbObjItem, rawComponentType));
 			}
 		}

-		return items;
+		return getPotentiallyConvertedSimpleRead(items, targetType.getType());
 	}

 	/**
@@ -750,7 +757,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 	 * @return
 	 */
 	@SuppressWarnings("unchecked")
-	protected Map<Object, Object> readMap(TypeInformation<?> type, DBObject dbObject) {
+	protected Map<Object, Object> readMap(TypeInformation<?> type, DBObject dbObject, Object parent) {

 		Assert.notNull(dbObject);

@@ -763,19 +770,22 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 				continue;
 			}

-			Object key = entry.getKey();
+			Object key = potentiallyUnescapeMapKey(entry.getKey());

 			TypeInformation<?> keyTypeInformation = type.getComponentType();
 			if (keyTypeInformation != null) {
 				Class<?> keyType = keyTypeInformation.getType();
-				key = conversionService.convert(entry.getKey(), keyType);
+				key = conversionService.convert(key, keyType);
 			}

 			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));
+				map.put(key, read(valueType, (DBObject) value, parent));
+			} else if (value instanceof DBRef) {
+				map.put(key, DBRef.class.equals(rawValueType) ? value : read(valueType, ((DBRef) value).fetch()));
 			} else {
 				Class<?> valueClass = valueType == null ? null : valueType.getType();
 				map.put(key, getPotentiallyConvertedSimpleRead(value, valueClass));
@@ -807,7 +817,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return null;
 		}

-		Class<?> target = conversions.getCustomWriteTarget(getClass());
+		Class<?> target = conversions.getCustomWriteTarget(obj.getClass());
 		if (target != null) {
 			return conversionService.convert(obj, target);
 		}
@@ -838,14 +848,14 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 			return result;
 		}

-		if (obj instanceof List) {
-			return maybeConvertList((List<?>) obj);
-		}
-
 		if (obj.getClass().isArray()) {
 			return maybeConvertList(Arrays.asList((Object[]) obj));
 		}

+		if (obj instanceof Collection) {
+			return maybeConvertList((Collection<?>) obj);
+		}
+
 		DBObject newDbo = new BasicDBObject();
 		this.write(obj, newDbo);
 		return removeTypeInfoRecursively(newDbo);
@@ -858,7 +868,7 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App
 		}
 		return newDbl;
 	}
-	
+
 	/**
 	 * Removes the type information from the conversion result.
 	 * 
@@ -895,4 +905,55 @@ public class MappingMongoConverter extends AbstractMongoConverter implements App

 		return dbObject;
 	}
+
+	private class MongoDbPropertyValueProvider implements PropertyValueProvider<MongoPersistentProperty> {
+
+		private final DBObject source;
+		private final SpELExpressionEvaluator evaluator;
+		private final Object parent;
+
+		public MongoDbPropertyValueProvider(DBObject source, SpELContext factory, Object parent) {
+			this(source, new DefaultSpELExpressionEvaluator(source, factory), parent);
+		}
+
+		public MongoDbPropertyValueProvider(DBObject source, DefaultSpELExpressionEvaluator evaluator, Object parent) {
+
+			Assert.notNull(source);
+			Assert.notNull(evaluator);
+
+			this.source = source;
+			this.evaluator = evaluator;
+			this.parent = parent;
+		}
+
+		/* 
+		 * (non-Javadoc)
+		 * @see org.springframework.data.convert.PropertyValueProvider#getPropertyValue(org.springframework.data.mapping.PersistentProperty)
+		 */
+		@SuppressWarnings("unchecked")
+		public <T> T getPropertyValue(MongoPersistentProperty property) {
+
+			String expression = property.getSpelExpression();
+			Object value = expression != null ? evaluator.evaluate(expression) : source.get(property.getFieldName());
+
+			if (value == null) {
+				return null;
+			}
+
+			TypeInformation<?> type = property.getTypeInformation();
+			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, ((DBRef) value).fetch(), parent));
+			} else if (value instanceof BasicDBList) {
+				return (T) readCollectionOrArray(type, (BasicDBList) value, parent);
+			} else if (value instanceof DBObject) {
+				return (T) read(type, (DBObject) value, parent);
+			} else {
+				return (T) getPotentiallyConvertedSimpleRead(value, rawType);
+			}
+		}
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MongoConverters.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MongoConverters.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 the original author or authors.
+ * Copyright 2011-2012 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.
@@ -17,8 +17,12 @@ package org.springframework.data.mongodb.core.convert;

 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.net.MalformedURLException;
+import java.net.URL;

 import org.bson.types.ObjectId;
+import org.springframework.core.convert.ConversionFailedException;
+import org.springframework.core.convert.TypeDescriptor;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.util.StringUtils;

@@ -119,4 +123,28 @@ abstract class MongoConverters {
 			return StringUtils.hasText(source) ? new BigInteger(source) : null;
 		}
 	}
+
+	public static enum URLToStringConverter implements Converter<URL, String> {
+		INSTANCE;
+
+		public String convert(URL source) {
+			return source == null ? null : source.toString();
+		}
+	}
+
+	public static enum StringToURLConverter implements Converter<String, URL> {
+		INSTANCE;
+
+		private static final TypeDescriptor SOURCE = TypeDescriptor.valueOf(String.class);
+		private static final TypeDescriptor TARGET = TypeDescriptor.valueOf(URL.class);
+
+		public URL convert(String source) {
+
+			try {
+				return source == null ? null : new URL(source);
+			} catch (MalformedURLException e) {
+				throw new ConversionFailedException(SOURCE, TARGET, source, e);
+			}
+		}
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MongoWriter.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/MongoWriter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -16,8 +16,10 @@
 package org.springframework.data.mongodb.core.convert;

 import org.springframework.data.convert.EntityWriter;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;

 import com.mongodb.DBObject;
+import com.mongodb.DBRef;

 /**
 * A MongoWriter is responsible for converting an object of type T to the native MongoDB representation DBObject.
@@ -37,4 +39,14 @@ public interface MongoWriter<T> extends EntityWriter<T, DBObject> {
 	 * @return
 	 */
 	Object convertToMongoType(Object obj);
+
+	/**
+	 * Creates a {@link DBRef} to refer to the given object.
+	 * 
+	 * @param object the object to create a {@link DBRef} to link to. The object's type has to carry an id attribute.
+	 * @param referingProperty the client-side property referring to the object which might carry additional metadata for
+	 *          the {@link DBRef} object to create. Can be {@literal null}.
+	 * @return will never be {@literal null}.
+	 */
+	DBRef toDBRef(Object object, MongoPersistentProperty referingProperty);
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/QueryMapper.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/QueryMapper.java
@@ -0,0 +1,347 @@
+/*
+ * Copyright 2011-2012 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.List;
+
+import org.bson.types.ObjectId;
+import org.springframework.core.convert.ConversionException;
+import org.springframework.core.convert.ConversionService;
+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.mongodb.core.mapping.MongoPersistentEntity;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+import org.springframework.util.Assert;
+
+import com.mongodb.BasicDBList;
+import com.mongodb.BasicDBObject;
+import com.mongodb.DBObject;
+import com.mongodb.DBRef;
+
+/**
+ * A helper class to encapsulate any modifications of a Query object before it gets submitted to the database.
+ * 
+ * @author Jon Brisbin
+ * @author Oliver Gierke
+ */
+public class QueryMapper {
+
+	private static final List<String> DEFAULT_ID_NAMES = Arrays.asList("id", "_id");
+	private static final String N_OR_PATTERN = "\\$.*or";
+
+	private final ConversionService conversionService;
+	private final MongoConverter converter;
+	private final MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext;
+
+	/**
+	 * Creates a new {@link QueryMapper} with the given {@link MongoConverter}.
+	 * 
+	 * @param converter must not be {@literal null}.
+	 */
+	public QueryMapper(MongoConverter converter) {
+
+		Assert.notNull(converter);
+
+		this.conversionService = converter.getConversionService();
+		this.converter = converter;
+		this.mappingContext = converter.getMappingContext();
+	}
+
+	/**
+	 * Replaces the property keys used in the given {@link DBObject} with the appropriate keys by using the
+	 * {@link PersistentEntity} metadata.
+	 * 
+	 * @param query must not be {@literal null}.
+	 * @param entity can be {@literal null}.
+	 * @return
+	 */
+	public DBObject getMappedObject(DBObject query, MongoPersistentEntity<?> entity) {
+
+		if (Keyword.isKeyword(query)) {
+			return getMappedKeyword(new Keyword(query), entity);
+		}
+
+		DBObject result = new BasicDBObject();
+
+		for (String key : query.keySet()) {
+
+			MongoPersistentProperty targetProperty = getTargetProperty(key, entity);
+			String newKey = determineKey(key, entity);
+			Object value = query.get(key);
+
+			result.put(newKey, getMappedValue(value, targetProperty, newKey));
+		}
+
+		return result;
+	}
+
+	/**
+	 * Returns the given {@link DBObject} representing a keyword by mapping the keyword's value.
+	 * 
+	 * @param query the {@link DBObject} representing a keyword (e.g. {@code $ne : … } )
+	 * @param entity
+	 * @return
+	 */
+	private DBObject getMappedKeyword(Keyword query, MongoPersistentEntity<?> entity) {
+
+		// $or/$nor
+		if (query.key.matches(N_OR_PATTERN)) {
+
+			Iterable<?> conditions = (Iterable<?>) query.value;
+			BasicDBList newConditions = new BasicDBList();
+
+			for (Object condition : conditions) {
+				newConditions.add(getMappedObject((DBObject) condition, entity));
+			}
+
+			return new BasicDBObject(query.key, newConditions);
+		}
+
+		return new BasicDBObject(query.key, convertSimpleOrDBObject(query.value, entity));
+	}
+
+	/**
+	 * Returns the mapped keyword considered defining a criteria for the given property.
+	 * 
+	 * @param keyword
+	 * @param property
+	 * @return
+	 */
+	public DBObject getMappedKeyword(Keyword keyword, MongoPersistentProperty property) {
+
+		if (property.isAssociation()) {
+			convertAssociation(keyword.value, property);
+		}
+
+		return new BasicDBObject(keyword.key, getMappedValue(keyword.value, property, keyword.key));
+	}
+
+	/**
+	 * Returns the mapped value for the given source object assuming it's a value for the given
+	 * {@link MongoPersistentProperty}.
+	 * 
+	 * @param source the source object to be mapped
+	 * @param property the property the value is a value for
+	 * @param newKey the key the value will be bound to eventually
+	 * @return
+	 */
+	private Object getMappedValue(Object source, MongoPersistentProperty property, String newKey) {
+
+		if (property == null) {
+			return convertSimpleOrDBObject(source, null);
+		}
+
+		if (property.isIdProperty() || "_id".equals(newKey)) {
+
+			if (source instanceof DBObject) {
+				DBObject valueDbo = (DBObject) source;
+				if (valueDbo.containsField("$in") || valueDbo.containsField("$nin")) {
+					String inKey = valueDbo.containsField("$in") ? "$in" : "$nin";
+					List<Object> ids = new ArrayList<Object>();
+					for (Object id : (Iterable<?>) valueDbo.get(inKey)) {
+						ids.add(convertId(id));
+					}
+					valueDbo.put(inKey, ids.toArray(new Object[ids.size()]));
+				} else if (valueDbo.containsField("$ne")) {
+					valueDbo.put("$ne", convertId(valueDbo.get("$ne")));
+				} else {
+					return getMappedObject((DBObject) source, null);
+				}
+
+				return valueDbo;
+
+			} else {
+				return convertId(source);
+			}
+		}
+
+		if (property.isAssociation()) {
+			return Keyword.isKeyword(source) ? getMappedKeyword(new Keyword(source), property) : convertAssociation(source,
+					property);
+		}
+
+		return convertSimpleOrDBObject(source, mappingContext.getPersistentEntity(property));
+	}
+
+	private MongoPersistentProperty getTargetProperty(String key, MongoPersistentEntity<?> entity) {
+
+		if (isIdKey(key, entity)) {
+			return entity.getIdProperty();
+		}
+
+		PersistentPropertyPath<MongoPersistentProperty> path = getPath(key, entity);
+		return path == null ? null : path.getLeafProperty();
+	}
+
+	private PersistentPropertyPath<MongoPersistentProperty> getPath(String key, MongoPersistentEntity<?> entity) {
+
+		if (entity == null) {
+			return null;
+		}
+
+		try {
+			PropertyPath path = PropertyPath.from(key, entity.getTypeInformation());
+			return mappingContext.getPersistentPropertyPath(path);
+		} catch (PropertyReferenceException e) {
+			return null;
+		}
+	}
+
+	/**
+	 * Returns the translated key assuming the given one is a propert (path) reference.
+	 * 
+	 * @param key the source key
+	 * @param entity the base entity
+	 * @return the translated key
+	 */
+	private String determineKey(String key, MongoPersistentEntity<?> entity) {
+
+		if (entity == null && DEFAULT_ID_NAMES.contains(key)) {
+			return "_id";
+		}
+
+		PersistentPropertyPath<MongoPersistentProperty> path = getPath(key, entity);
+		return path == null ? key : path.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE);
+	}
+
+	/**
+	 * Retriggers mapping if the given source is a {@link DBObject} or simply invokes the
+	 * 
+	 * @param source
+	 * @param entity
+	 * @return
+	 */
+	private Object convertSimpleOrDBObject(Object source, MongoPersistentEntity<?> entity) {
+
+		if (source instanceof BasicDBList) {
+			return converter.convertToMongoType(source);
+		}
+
+		if (source instanceof DBObject) {
+			return getMappedObject((DBObject) source, entity);
+		}
+
+		return converter.convertToMongoType(source);
+	}
+
+	/**
+	 * Converts the given source assuming it's actually an association to anoter object.
+	 * 
+	 * @param source
+	 * @param property
+	 * @return
+	 */
+	private Object convertAssociation(Object source, MongoPersistentProperty property) {
+
+		if (property == null || !property.isAssociation()) {
+			return source;
+		}
+
+		if (source instanceof Iterable) {
+			BasicDBList result = new BasicDBList();
+			for (Object element : (Iterable<?>) source) {
+				result.add(element instanceof DBRef ? element : converter.toDBRef(element, property));
+			}
+			return result;
+		}
+
+		return source instanceof DBRef ? source : converter.toDBRef(source, property);
+	}
+
+	/**
+	 * Returns whether the given key will be considered an id key.
+	 * 
+	 * @param key
+	 * @param entity
+	 * @return
+	 */
+	private boolean isIdKey(String key, MongoPersistentEntity<?> entity) {
+
+		if (entity == null) {
+			return false;
+		}
+
+		MongoPersistentProperty idProperty = entity.getIdProperty();
+
+		if (idProperty != null) {
+			return idProperty.getName().equals(key) || idProperty.getFieldName().equals(key);
+		}
+
+		return DEFAULT_ID_NAMES.contains(key);
+	}
+
+	/**
+	 * Converts the given raw id value into either {@link ObjectId} or {@link String}.
+	 * 
+	 * @param id
+	 * @return
+	 */
+	public Object convertId(Object id) {
+
+		try {
+			return conversionService.convert(id, ObjectId.class);
+		} catch (ConversionException e) {
+			// Ignore
+		}
+
+		return converter.convertToMongoType(id);
+	}
+
+	/**
+	 * Value object to capture a query keyword representation.
+	 * 
+	 * @author Oliver Gierke
+	 */
+	private static class Keyword {
+
+		String key;
+		Object value;
+
+		Keyword(Object source) {
+
+			Assert.isInstanceOf(DBObject.class, source);
+
+			DBObject value = (DBObject) source;
+
+			Assert.isTrue(value.keySet().size() == 1, "Keyword must have a single key only!");
+
+			this.key = value.keySet().iterator().next();
+			this.value = value.get(key);
+		}
+
+		/**
+		 * Returns whether the given value actually represents a keyword. If this returns {@literal true} it's safe to call
+		 * the constructor.
+		 * 
+		 * @param value
+		 * @return
+		 */
+		static boolean isKeyword(Object value) {
+
+			if (!(value instanceof DBObject)) {
+				return false;
+			}
+
+			DBObject dbObject = (DBObject) value;
+			return dbObject.keySet().size() == 1 && dbObject.keySet().iterator().next().startsWith("$");
+		}
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Box.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Box.java
@@ -66,7 +66,7 @@ public class Box implements Shape {
 		list.add(getUpperRight().asList());
 		return list;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.geo.Shape#getCommand()
@@ -74,7 +74,7 @@ public class Box implements Shape {
 	public String getCommand() {
 		return "$box";
 	}
-	
+
 	@Override
 	public String toString() {
 		return String.format("Box [%s, %s]", first, second);
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Circle.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Circle.java
@@ -40,10 +40,10 @@ public class Circle implements Shape {
 	 */
 	@PersistenceConstructor
 	public Circle(Point center, double radius) {
-		
+
 		Assert.notNull(center);
 		Assert.isTrue(radius >= 0, "Radius must not be negative!");
-		
+
 		this.center = center;
 		this.radius = radius;
 	}
@@ -76,7 +76,7 @@ public class Circle implements Shape {
 	public double getRadius() {
 		return radius;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.geo.Shape#asList()
@@ -87,7 +87,7 @@ public class Circle implements Shape {
 		result.add(getRadius());
 		return result;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.geo.Shape#getCommand()
@@ -104,26 +104,26 @@ public class Circle implements Shape {
 	public String toString() {
 		return String.format("Circle [center=%s, radius=%f]", center, radius);
 	}
-	
+
 	/* (non-Javadoc)
 	 * @see java.lang.Object#equals(java.lang.Object)
 	 */
 	@Override
 	public boolean equals(Object obj) {
-		
+
 		if (this == obj) {
 			return true;
 		}
-		
+
 		if (obj == null || !getClass().equals(obj.getClass())) {
 			return false;
 		}
-		
+
 		Circle that = (Circle) obj;
-		
+
 		return this.center.equals(that.center) && this.radius == that.radius;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see java.lang.Object#hashCode()
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Polygon.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Polygon.java
@@ -50,22 +50,22 @@ public class Polygon implements Shape, Iterable<Point> {
 		this.points.addAll(Arrays.asList(x, y, z));
 		this.points.addAll(Arrays.asList(others));
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.geo.Shape#asList()
 	 */
 	public List<List<Double>> asList() {
-		
+
 		List<List<Double>> result = new ArrayList<List<Double>>();
-		
+
 		for (Point point : points) {
 			result.add(point.asList());
 		}
-		
+
 		return result;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.geo.Shape#getCommand()
@@ -73,7 +73,7 @@ public class Polygon implements Shape, Iterable<Point> {
 	public String getCommand() {
 		return "$polygon";
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see java.lang.Iterable#iterator()
@@ -88,20 +88,20 @@ public class Polygon implements Shape, Iterable<Point> {
 	 */
 	@Override
 	public boolean equals(Object obj) {
-		
+
 		if (this == obj) {
 			return true;
 		}
-		
+
 		if (obj == null || !getClass().equals(obj.getClass())) {
 			return false;
 		}
-		
+
 		Polygon that = (Polygon) obj;
-		
+
 		return this.points.equals(that.points);
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see java.lang.Object#hashCode()
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Shape.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/geo/Shape.java
@@ -19,7 +19,7 @@ import java.util.List;

 /**
 * Common interface for all shapes. Allows building MongoDB representations of them.
- *
+ * 
 * @author Oliver Gierke
 */
 public interface Shape {
@@ -31,7 +31,7 @@ public interface Shape {
 	 * @return
 	 */
 	List<? extends Object> asList();
-	
+
 	/**
 	 * Returns the command to be used to create the {@literal $within} criterion.
 	 * 
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/CompoundIndex.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/CompoundIndex.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -13,9 +13,9 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.core.index;

+import java.lang.annotation.Documented;
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -24,14 +24,29 @@ import java.lang.annotation.Target;
 /**
 * Mark a class to use compound indexes.
 * 
- * @author Jon Brisbin <jbrisbin@vmware.com>
+ * @author Jon Brisbin
+ * @author Oliver Gierke
 */
@Target({ ElementType.TYPE })
+@Documented
@Retention(RetentionPolicy.RUNTIME)
 public @interface CompoundIndex {

+	/**
+	 * The actual index definition in JSON format. The keys of the JSON document are the fields to be indexed, the values
+	 * define the index direction (1 for ascending, -1 for descending).
+	 * 
+	 * @return
+	 */
 	String def();

+	/**
+	 * It does not actually make sense to use that attribute as the direction has to be defined in the {@link #def()}
+	 * attribute actually.
+	 * 
+	 * @return
+	 */
+	@Deprecated
 	IndexDirection direction() default IndexDirection.ASCENDING;

 	boolean unique() default false;
@@ -40,8 +55,18 @@ public @interface CompoundIndex {

 	boolean dropDups() default false;

+	/**
+	 * The name of the index to be created.
+	 * 
+	 * @return
+	 */
 	String name() default "";

+	/**
+	 * The collection the index will be created in. Will default to the collection the annotated domain class will be
+	 * stored in.
+	 * 
+	 * @return
+	 */
 	String collection() default "";
-
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/IndexField.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/IndexField.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2012 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.index;
+
+import org.springframework.data.mongodb.core.query.Order;
+import org.springframework.util.Assert;
+import org.springframework.util.ObjectUtils;
+
+/**
+ * Value object for an index field.
+ * 
+ * @author Oliver Gierke
+ */
+public final class IndexField {
+
+	private final String key;
+	private final Order order;
+	private final boolean isGeo;
+
+	private IndexField(String key, Order order, boolean isGeo) {
+
+		Assert.hasText(key);
+		Assert.isTrue(order != null ^ isGeo);
+
+		this.key = key;
+		this.order = order;
+		this.isGeo = isGeo;
+	}
+
+	/**
+	 * Creates a default {@link IndexField} with the given key and {@link Order}.
+	 * 
+	 * @param key must not be {@literal null} or emtpy.
+	 * @param order must not be {@literal null}.
+	 * @return
+	 */
+	public static IndexField create(String key, Order order) {
+		Assert.notNull(order);
+		return new IndexField(key, order, false);
+	}
+
+	/**
+	 * Creates a geo {@link IndexField} for the given key.
+	 * 
+	 * @param key must not be {@literal null} or empty.
+	 * @return
+	 */
+	public static IndexField geo(String key) {
+		return new IndexField(key, null, true);
+	}
+
+	/**
+	 * @return the key
+	 */
+	public String getKey() {
+		return key;
+	}
+
+	/**
+	 * Returns the order of the {@link IndexField} or {@literal null} in case we have a geo index field.
+	 * 
+	 * @return the order
+	 */
+	public Order getOrder() {
+		return order;
+	}
+
+	/**
+	 * Returns whether the {@link IndexField} is a geo index field.
+	 * 
+	 * @return the isGeo
+	 */
+	public boolean isGeo() {
+		return isGeo;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#equals(java.lang.Object)
+	 */
+	@Override
+	public boolean equals(Object obj) {
+
+		if (this == obj) {
+			return true;
+		}
+
+		if (!(obj instanceof IndexField)) {
+			return false;
+		}
+
+		IndexField that = (IndexField) obj;
+
+		return this.key.equals(that.key) && ObjectUtils.nullSafeEquals(this.order, that.order) && this.isGeo == that.isGeo;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see java.lang.Object#hashCode()
+	 */
+	@Override
+	public int hashCode() {
+
+		int result = 17;
+		result += 31 * ObjectUtils.nullSafeHashCode(key);
+		result += 31 * ObjectUtils.nullSafeHashCode(order);
+		result += 31 * ObjectUtils.nullSafeHashCode(isGeo);
+		return result;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
+	@Override
+	public String toString() {
+		return String.format("IndexField [ key: %s, order: %s, isGeo: %s]", key, order, isGeo);
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/IndexInfo.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/IndexInfo.java
@@ -15,34 +15,57 @@
 */
 package org.springframework.data.mongodb.core.index;

-import java.util.Map;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;

-import org.springframework.data.mongodb.core.query.Order;
+import org.springframework.util.Assert;
+import org.springframework.util.ObjectUtils;

 public class IndexInfo {

-	private final Map<String, Order> fieldSpec;
+	private final List<IndexField> indexFields;

-	private String name;
+	private final String name;
+	private final boolean unique;
+	private final boolean dropDuplicates;
+	private final boolean sparse;

-	private boolean unique = false;
+	public IndexInfo(List<IndexField> indexFields, String name, boolean unique, boolean dropDuplicates, boolean sparse) {

-	private boolean dropDuplicates = false;
-
-	private boolean sparse = false;
-
-
-	public IndexInfo(Map<String, Order> fieldSpec, String name, boolean unique, boolean dropDuplicates, boolean sparse) {
-		super();
-		this.fieldSpec = fieldSpec;
+		this.indexFields = Collections.unmodifiableList(indexFields);
 		this.name = name;
 		this.unique = unique;
 		this.dropDuplicates = dropDuplicates;
 		this.sparse = sparse;
 	}

-	public Map<String, Order> getFieldSpec() {
-		return fieldSpec;
+	/**
+	 * Returns the individual index fields of the index.
+	 * 
+	 * @return
+	 */
+	public List<IndexField> getIndexFields() {
+		return this.indexFields;
+	}
+
+	/**
+	 * Returns whether the index is covering exactly the fields given independently of the order.
+	 * 
+	 * @param keys must not be {@literal null}.
+	 * @return
+	 */
+	public boolean isIndexForFields(Collection<String> keys) {
+
+		Assert.notNull(keys);
+		List<String> indexKeys = new ArrayList<String>(indexFields.size());
+
+		for (IndexField field : indexFields) {
+			indexKeys.add(field.getKey());
+		}
+
+		return indexKeys.containsAll(keys);
 	}

 	public String getName() {
@@ -63,7 +86,7 @@ public class IndexInfo {

 	@Override
 	public String toString() {
-		return "IndexInfo [fieldSpec=" + fieldSpec + ", name=" + name + ", unique=" + unique + ", dropDuplicates="
+		return "IndexInfo [indexFields=" + indexFields + ", name=" + name + ", unique=" + unique + ", dropDuplicates="
 				+ dropDuplicates + ", sparse=" + sparse + "]";
 	}

@@ -72,7 +95,7 @@ public class IndexInfo {
 		final int prime = 31;
 		int result = 1;
 		result = prime * result + (dropDuplicates ? 1231 : 1237);
-		result = prime * result + ((fieldSpec == null) ? 0 : fieldSpec.hashCode());
+		result = prime * result + ObjectUtils.nullSafeHashCode(indexFields);
 		result = prime * result + ((name == null) ? 0 : name.hashCode());
 		result = prime * result + (sparse ? 1231 : 1237);
 		result = prime * result + (unique ? 1231 : 1237);
@@ -81,35 +104,39 @@ public class IndexInfo {

 	@Override
 	public boolean equals(Object obj) {
-		if (this == obj)
+		if (this == obj) {
 			return true;
-		if (obj == null)
+		}
+		if (obj == null) {
 			return false;
-		if (getClass() != obj.getClass())
+		}
+		if (getClass() != obj.getClass()) {
 			return false;
+		}
 		IndexInfo other = (IndexInfo) obj;
-		if (dropDuplicates != other.dropDuplicates)
+		if (dropDuplicates != other.dropDuplicates) {
 			return false;
-		if (fieldSpec == null) {
-			if (other.fieldSpec != null)
+		}
+		if (indexFields == null) {
+			if (other.indexFields != null) {
 				return false;
-		} else if (!fieldSpec.equals(other.fieldSpec))
+			}
+		} else if (!indexFields.equals(other.indexFields)) {
 			return false;
+		}
 		if (name == null) {
-			if (other.name != null)
+			if (other.name != null) {
 				return false;
-		} else if (!name.equals(other.name))
+			}
+		} else if (!name.equals(other.name)) {
 			return false;
-		if (sparse != other.sparse)
+		}
+		if (sparse != other.sparse) {
 			return false;
-		if (unique != other.unique)
+		}
+		if (unique != other.unique) {
 			return false;
+		}
 		return true;
 	}
-
-
-	/**
-	 * [{ "v" : 1 , "key" : { "_id" : 1} ,  "ns" : "database.person" , "name" : "_id_"}, 
-      { "v" : 1 , "key" : { "age" : -1} , "ns" : "database.person" , "name" : "age_-1" ,  "unique" : true , "dropDups" : true}]
-	 */
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/MongoMappingEventPublisher.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/MongoMappingEventPublisher.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -13,37 +13,51 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.core.index;

+import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationEvent;
 import org.springframework.context.ApplicationEventPublisher;
-import org.springframework.data.mapping.event.MappingContextEvent;
+import org.springframework.data.mapping.context.MappingContextEvent;
+import org.springframework.data.mongodb.core.MongoTemplate;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+import org.springframework.data.mongodb.core.mapping.event.AfterLoadEvent;
+import org.springframework.data.mongodb.core.mapping.event.AfterSaveEvent;
+import org.springframework.util.Assert;

 /**
- * An implementation of ApplicationEventPublisher that will only fire MappingContextEvents for use by the index creator when
- * MongoTemplate is used 'stand-alone', that is not declared inside a Spring ApplicationContext.
+ * An implementation of ApplicationEventPublisher that will only fire {@link MappingContextEvent}s for use by the index
+ * creator when MongoTemplate is used 'stand-alone', that is not declared inside a Spring {@link ApplicationContext}.
+ * Declare {@link MongoTemplate} inside an {@link ApplicationContext} to enable the publishing of all persistence events
+ * such as {@link AfterLoadEvent}, {@link AfterSaveEvent}, etc.
 * 
- * Declare MongoTemplate inside an ApplicationContext to enable the publishing of all persistence events such as 
- * {@link AfterLoadEvent}, {@link AfterSaveEvent}, etc. 
- *
- * @author Jon Brisbin <jbrisbin@vmware.com>
+ * @author Jon Brisbin
+ * @author Oliver Gierke
 */
 public class MongoMappingEventPublisher implements ApplicationEventPublisher {

-	private MongoPersistentEntityIndexCreator indexCreator;
+	private final MongoPersistentEntityIndexCreator indexCreator;

+	/**
+	 * Creates a new {@link MongoMappingEventPublisher} for the given {@link MongoPersistentEntityIndexCreator}.
+	 * 
+	 * @param indexCreator must not be {@literal null}.
+	 */
 	public MongoMappingEventPublisher(MongoPersistentEntityIndexCreator indexCreator) {
+
+		Assert.notNull(indexCreator);
 		this.indexCreator = indexCreator;
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.context.ApplicationEventPublisher#publishEvent(org.springframework.context.ApplicationEvent)
+	 */
 	@SuppressWarnings("unchecked")
 	public void publishEvent(ApplicationEvent event) {
 		if (event instanceof MappingContextEvent) {
-			indexCreator
-					.onApplicationEvent((MappingContextEvent<MongoPersistentEntity<MongoPersistentProperty>, MongoPersistentProperty>) event);
+			indexCreator.onApplicationEvent((MappingContextEvent<MongoPersistentEntity<?>, MongoPersistentProperty>) event);
 		}
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/MongoPersistentEntityIndexCreator.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/MongoPersistentEntityIndexCreator.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -13,20 +13,20 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.core.index;

 import java.lang.reflect.Field;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.context.ApplicationListener;
+import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PropertyHandler;
-import org.springframework.data.mapping.event.MappingContextEvent;
+import org.springframework.data.mapping.context.MappingContext;
+import org.springframework.data.mapping.context.MappingContextEvent;
 import org.springframework.data.mongodb.MongoDbFactory;
-import org.springframework.data.mongodb.core.mapping.BasicMongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
@@ -38,32 +38,35 @@ import com.mongodb.DBObject;
 import com.mongodb.util.JSON;

 /**
- * Component that inspects {@link BasicMongoPersistentEntity} instances contained in the given
- * {@link MongoMappingContext} for indexing metadata and ensures the indexes to be available.
+ * Component that inspects {@link MongoPersistentEntity} instances contained in the given {@link MongoMappingContext}
+ * for indexing metadata and ensures the indexes to be available.
 * 
- * @author Jon Brisbin <jbrisbin@vmware.com>
+ * @author Jon Brisbin
 * @author Oliver Gierke
 */
 public class MongoPersistentEntityIndexCreator implements
-		ApplicationListener<MappingContextEvent<MongoPersistentEntity<MongoPersistentProperty>, MongoPersistentProperty>> {
+		ApplicationListener<MappingContextEvent<MongoPersistentEntity<?>, MongoPersistentProperty>> {

-	private static final Log log = LogFactory.getLog(MongoPersistentEntityIndexCreator.class);
+	private static final Logger log = LoggerFactory.getLogger(MongoPersistentEntityIndexCreator.class);

 	private final Map<Class<?>, Boolean> classesSeen = new ConcurrentHashMap<Class<?>, Boolean>();
 	private final MongoDbFactory mongoDbFactory;
+	private final MongoMappingContext mappingContext;

 	/**
 	 * Creats a new {@link MongoPersistentEntityIndexCreator} for the given {@link MongoMappingContext} and
 	 * {@link MongoDbFactory}.
 	 * 
-	 * @param mappingContext must not be {@@iteral null}
-	 * @param mongoDbFactory must not be {@@iteral null}
+	 * @param mappingContext must not be {@literal null}
+	 * @param mongoDbFactory must not be {@literal null}
 	 */
 	public MongoPersistentEntityIndexCreator(MongoMappingContext mappingContext, MongoDbFactory mongoDbFactory) {

 		Assert.notNull(mongoDbFactory);
 		Assert.notNull(mappingContext);
+
 		this.mongoDbFactory = mongoDbFactory;
+		this.mappingContext = mappingContext;

 		for (MongoPersistentEntity<?> entity : mappingContext.getPersistentEntities()) {
 			checkForIndexes(entity);
@@ -74,9 +77,18 @@ public class MongoPersistentEntityIndexCreator implements
 	 * (non-Javadoc)
 	 * @see org.springframework.context.ApplicationListener#onApplicationEvent(org.springframework.context.ApplicationEvent)
 	 */
-	public void onApplicationEvent(
-			MappingContextEvent<MongoPersistentEntity<MongoPersistentProperty>, MongoPersistentProperty> event) {
-		checkForIndexes(event.getPersistentEntity());
+	public void onApplicationEvent(MappingContextEvent<MongoPersistentEntity<?>, MongoPersistentProperty> event) {
+
+		if (!event.wasEmittedBy(mappingContext)) {
+			return;
+		}
+
+		PersistentEntity<?, ?> entity = event.getPersistentEntity();
+
+		// Double check type as Spring infrastructure does not consider nested generics
+		if (entity instanceof MongoPersistentEntity) {
+			checkForIndexes(event.getPersistentEntity());
+		}
 	}

 	protected void checkForIndexes(final MongoPersistentEntity<?> entity) {
@@ -90,12 +102,12 @@ public class MongoPersistentEntityIndexCreator implements
 			if (type.isAnnotationPresent(CompoundIndexes.class)) {
 				CompoundIndexes indexes = type.getAnnotation(CompoundIndexes.class);
 				for (CompoundIndex index : indexes.value()) {
-					String indexColl = index.collection();
-					if ("".equals(indexColl)) {
-						indexColl = entity.getCollection();
-					}
-					ensureIndex(indexColl, index.name(), index.def(), index.direction(), index.unique(), index.dropDups(),
-							index.sparse());
+
+					String indexColl = StringUtils.hasText(index.collection()) ? index.collection() : entity.getCollection();
+					DBObject definition = (DBObject) JSON.parse(index.def());
+
+					ensureIndex(indexColl, index.name(), definition, index.unique(), index.dropDups(), index.sparse());
+
 					if (log.isDebugEnabled()) {
 						log.debug("Created compound index " + index);
 					}
@@ -104,10 +116,14 @@ public class MongoPersistentEntityIndexCreator implements

 			entity.doWithProperties(new PropertyHandler<MongoPersistentProperty>() {
 				public void doWithPersistentProperty(MongoPersistentProperty persistentProperty) {
+
 					Field field = persistentProperty.getField();
+
 					if (field.isAnnotationPresent(Indexed.class)) {
+
 						Indexed index = field.getAnnotation(Indexed.class);
 						String name = index.name();
+
 						if (!StringUtils.hasText(name)) {
 							name = persistentProperty.getFieldName();
 						} else {
@@ -119,11 +135,17 @@ public class MongoPersistentEntityIndexCreator implements
 								}
 							}
 						}
+
 						String collection = StringUtils.hasText(index.collection()) ? index.collection() : entity.getCollection();
-						ensureIndex(collection, name, null, index.direction(), index.unique(), index.dropDups(), index.sparse());
+						int direction = index.direction() == IndexDirection.ASCENDING ? 1 : -1;
+						DBObject definition = new BasicDBObject(persistentProperty.getFieldName(), direction);
+
+						ensureIndex(collection, name, definition, index.unique(), index.dropDups(), index.sparse());
+
 						if (log.isDebugEnabled()) {
 							log.debug("Created property index " + index);
 						}
+
 					} else if (field.isAnnotationPresent(GeoSpatialIndexed.class)) {

 						GeoSpatialIndexed index = field.getAnnotation(GeoSpatialIndexed.class);
@@ -148,21 +170,35 @@ public class MongoPersistentEntityIndexCreator implements
 		}
 	}

-	protected void ensureIndex(String collection, final String name, final String def, final IndexDirection direction,
-			final boolean unique, final boolean dropDups, final boolean sparse) {
-		DBObject defObj;
-		if (null != def) {
-			defObj = (DBObject) JSON.parse(def);
-		} else {
-			defObj = new BasicDBObject();
-			defObj.put(name, (direction == IndexDirection.ASCENDING ? 1 : -1));
-		}
+	/**
+	 * Returns whether the current index creator was registered for the given {@link MappingContext}.
+	 * 
+	 * @param context
+	 * @return
+	 */
+	public boolean isIndexCreatorFor(MappingContext<?, ?> context) {
+		return this.mappingContext.equals(context);
+	}
+
+	/**
+	 * Triggers the actual index creation.
+	 * 
+	 * @param collection the collection to create the index in
+	 * @param name the name of the index about to be created
+	 * @param indexDefinition the index definition
+	 * @param unique whether it shall be a unique index
+	 * @param dropDups whether to drop duplicates
+	 * @param sparse sparse or not
+	 */
+	protected void ensureIndex(String collection, String name, DBObject indexDefinition, boolean unique,
+			boolean dropDups, boolean sparse) {
+
 		DBObject opts = new BasicDBObject();
 		opts.put("name", name);
 		opts.put("dropDups", dropDups);
 		opts.put("sparse", sparse);
 		opts.put("unique", unique);
-		mongoDbFactory.getDb().getCollection(collection).ensureIndex(defObj, opts);
-	}

+		mongoDbFactory.getDb().getCollection(collection).ensureIndex(indexDefinition, opts);
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/BasicMongoPersistentEntity.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/BasicMongoPersistentEntity.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -13,7 +13,6 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.core.mapping;

 import java.util.Comparator;
@@ -23,8 +22,8 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.context.expression.BeanFactoryAccessor;
 import org.springframework.context.expression.BeanFactoryResolver;
-import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.model.BasicPersistentEntity;
+import org.springframework.data.mapping.model.MappingException;
 import org.springframework.data.mongodb.MongoCollectionUtils;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.expression.Expression;
@@ -34,11 +33,12 @@ import org.springframework.expression.spel.support.StandardEvaluationContext;
 import org.springframework.util.StringUtils;

 /**
- * Mongo specific {@link PersistentEntity} implementation that adds Mongo specific meta-data such as the collection name
- * and the like.
+ * MongoDB specific {@link MongoPersistentEntity} implementation that adds Mongo specific meta-data such as the
+ * collection name and the like.
 * 
- * @author Jon Brisbin <jbrisbin@vmware.com>
+ * @author Jon Brisbin
 * @author Oliver Gierke
+ * @author Patryk Wasik
 */
 public class BasicMongoPersistentEntity<T> extends BasicPersistentEntity<T, MongoPersistentProperty> implements
 		MongoPersistentEntity<T>, ApplicationContextAware {
@@ -47,6 +47,8 @@ public class BasicMongoPersistentEntity<T> extends BasicPersistentEntity<T, Mong
 	private final SpelExpressionParser parser;
 	private final StandardEvaluationContext context;

+	private MongoPersistentProperty versionProperty;
+
 	/**
 	 * Creates a new {@link BasicMongoPersistentEntity} with the given {@link TypeInformation}. Will default the
 	 * collection name to the entities simple type name.
@@ -71,20 +73,41 @@ public class BasicMongoPersistentEntity<T> extends BasicPersistentEntity<T, Mong
 		}
 	}

+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mapping.MutablePersistentEntity#addPersistentProperty(P)
+	 */
+	@Override
+	public void addPersistentProperty(MongoPersistentProperty property) {
+
+		if (property.isVersionProperty()) {
+
+			if (this.versionProperty != null) {
+				throw new MappingException(String.format(
+						"Attempt to add version property %s but already have property %s registered "
+								+ "as version. Check your mapping configuration!", property.getField(), versionProperty.getField()));
+			}
+
+			this.versionProperty = property;
+		}
+
+		super.addPersistentProperty(property);
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
 	 */
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+
 		context.addPropertyAccessor(new BeanFactoryAccessor());
 		context.setBeanResolver(new BeanFactoryResolver(applicationContext));
 		context.setRootObject(applicationContext);
 	}

-	/**
-	 * Returns the collection the entity should be stored in.
-	 * 
-	 * @return
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentEntity#getCollection()
 	 */
 	public String getCollection() {

@@ -92,6 +115,22 @@ public class BasicMongoPersistentEntity<T> extends BasicPersistentEntity<T, Mong
 		return expression.getValue(context, String.class);
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentEntity#getVersionProperty()
+	 */
+	public MongoPersistentProperty getVersionProperty() {
+		return versionProperty;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentEntity#hasVersionProperty()
+	 */
+	public boolean hasVersionProperty() {
+		return getVersionProperty() != null;
+	}
+
 	/**
 	 * {@link Comparator} implementation inspecting the {@link MongoPersistentProperty}'s order.
 	 * 
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/BasicMongoPersistentProperty.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/BasicMongoPersistentProperty.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -21,9 +21,9 @@ import java.math.BigInteger;
 import java.util.HashSet;
 import java.util.Set;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 import org.bson.types.ObjectId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.data.mapping.Association;
 import org.springframework.data.mapping.model.AnnotationBasedPersistentProperty;
 import org.springframework.data.mapping.model.SimpleTypeHolder;
@@ -32,14 +32,15 @@ import org.springframework.util.StringUtils;
 import com.mongodb.DBObject;

 /**
- * Mongo specific {@link org.springframework.data.mapping.PersistentProperty} implementation.
+ * MongoDB specific {@link org.springframework.data.mapping.MongoPersistentProperty} implementation.
 * 
 * @author Oliver Gierke
+ * @author Patryk Wasik
 */
 public class BasicMongoPersistentProperty extends AnnotationBasedPersistentProperty<MongoPersistentProperty> implements
 		MongoPersistentProperty {

-	private static final Log LOG = LogFactory.getLog(BasicMongoPersistentProperty.class);
+	private static final Logger LOG = LoggerFactory.getLogger(BasicMongoPersistentProperty.class);

 	private static final String ID_FIELD_NAME = "_id";
 	private static final Set<Class<?>> SUPPORTED_ID_TYPES = new HashSet<Class<?>>();
@@ -87,6 +88,7 @@ public class BasicMongoPersistentProperty extends AnnotationBasedPersistentPrope
 	 */
 	@Override
 	public boolean isIdProperty() {
+
 		if (super.isIdProperty()) {
 			return true;
 		}
@@ -111,8 +113,9 @@ public class BasicMongoPersistentProperty extends AnnotationBasedPersistentPrope
 		return annotation != null && StringUtils.hasText(annotation.value()) ? annotation.value() : field.getName();
 	}

-	/* (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.core.mapping.MongoPersistentProperty#getFieldOrder()
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentProperty#getFieldOrder()
 	 */
 	public int getFieldOrder() {
 		org.springframework.data.mongodb.core.mapping.Field annotation = getField().getAnnotation(
@@ -120,25 +123,36 @@ public class BasicMongoPersistentProperty extends AnnotationBasedPersistentPrope
 		return annotation != null ? annotation.order() : Integer.MAX_VALUE;
 	}

-	/* (non-Javadoc)
-	 * @see org.springframework.data.mapping.AbstractPersistentProperty#createAssociation()
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mapping.model.AbstractPersistentProperty#createAssociation()
 	 */
 	@Override
 	protected Association<MongoPersistentProperty> createAssociation() {
 		return new Association<MongoPersistentProperty>(this, null);
 	}

-	/* (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.core.mapping.MongoPersistentProperty#isDbReference()
-		 */
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentProperty#isDbReference()
+	 */
 	public boolean isDbReference() {
 		return getField().isAnnotationPresent(DBRef.class);
 	}

-	/* (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.core.mapping.MongoPersistentProperty#getDBRef()
-		 */
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentProperty#getDBRef()
+	 */
 	public DBRef getDBRef() {
 		return getField().getAnnotation(DBRef.class);
 	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentProperty#isVersionProperty()
+	 */
+	public boolean isVersionProperty() {
+		return getField().isAnnotationPresent(Version.class);
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/CachingMongoPersistentProperty.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/CachingMongoPersistentProperty.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -28,6 +28,7 @@ import org.springframework.data.mapping.model.SimpleTypeHolder;
 public class CachingMongoPersistentProperty extends BasicMongoPersistentProperty {

 	private Boolean isIdProperty;
+	private Boolean isAssociation;
 	private String fieldName;

 	/**
@@ -57,6 +58,18 @@ public class CachingMongoPersistentProperty extends BasicMongoPersistentProperty
 		return this.isIdProperty;
 	}

+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.BasicMongoPersistentProperty#isAssociation()
+	 */
+	@Override
+	public boolean isAssociation() {
+		if (this.isAssociation == null) {
+			this.isAssociation = super.isAssociation();
+		}
+		return this.isAssociation;
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.core.mapping.BasicMongoPersistentProperty#getFieldName()
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/DBRef.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/DBRef.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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.
@@ -13,9 +13,9 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.core.mapping;

+import java.lang.annotation.Documented;
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -24,19 +24,21 @@ import java.lang.annotation.Target;
 import org.springframework.data.annotation.Reference;

 /**
- * An annotation that indicates the annotated field is to be stored using a com.mongodb.DBRef
+ * An annotation that indicates the annotated field is to be stored using a {@link com.mongodb.DBRef}.
 * 
- * @author Jon Brisbin <jbrisbin@vmware.com>
+ * @author Jon Brisbin
+ * @authot Oliver Gierke
 */
+@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.FIELD })
@Reference
 public @interface DBRef {

-	String collection() default "";
-
-	String id() default "";
-
+	/**
+	 * The database the referred entity resides in.
+	 * 
+	 * @return
+	 */
 	String db() default "";
-
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoMappingContext.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoMappingContext.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -13,7 +13,6 @@
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-
 package org.springframework.data.mongodb.core.mapping;

 import java.beans.PropertyDescriptor;
@@ -23,14 +22,19 @@ import org.springframework.beans.BeansException;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.data.mapping.context.AbstractMappingContext;
+import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mapping.model.SimpleTypeHolder;
 import org.springframework.data.util.TypeInformation;

 /**
- * @author Jon Brisbin <jbrisbin@vmware.com>
- * @author Oliver Gierke ogierke@vmware.com
+ * Default implementation of a {@link MappingContext} for MongoDB using {@link BasicMongoPersistentEntity} and
+ * {@link BasicMongoPersistentProperty} as primary abstractions.
+ * 
+ * @author Jon Brisbin
+ * @author Oliver Gierke
 */
-public class MongoMappingContext extends AbstractMappingContext<BasicMongoPersistentEntity<?>, MongoPersistentProperty> implements ApplicationContextAware {
+public class MongoMappingContext extends AbstractMappingContext<BasicMongoPersistentEntity<?>, MongoPersistentProperty>
+		implements ApplicationContextAware {

 	private ApplicationContext context;

@@ -41,6 +45,15 @@ public class MongoMappingContext extends AbstractMappingContext<BasicMongoPersis
 		setSimpleTypeHolder(MongoSimpleTypes.HOLDER);
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mapping.context.AbstractMappingContext#shouldCreatePersistentEntityFor(org.springframework.data.util.TypeInformation)
+	 */
+	@Override
+	protected boolean shouldCreatePersistentEntityFor(TypeInformation<?> type) {
+		return !MongoSimpleTypes.HOLDER.isSimpleType(type.getType());
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mapping.AbstractMappingContext#createPersistentProperty(java.lang.reflect.Field, java.beans.PropertyDescriptor, org.springframework.data.mapping.MutablePersistentEntity, org.springframework.data.mapping.SimpleTypeHolder)
@@ -57,21 +70,24 @@ public class MongoMappingContext extends AbstractMappingContext<BasicMongoPersis
 	 */
 	@Override
 	protected <T> BasicMongoPersistentEntity<T> createPersistentEntity(TypeInformation<T> typeInformation) {
-		
+
 		BasicMongoPersistentEntity<T> entity = new BasicMongoPersistentEntity<T>(typeInformation);
-		
+
 		if (context != null) {
 			entity.setApplicationContext(context);
 		}
-		
+
 		return entity;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.context.ApplicationContextAware#setApplicationContext(org.springframework.context.ApplicationContext)
 	 */
+	@Override
 	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+
 		this.context = applicationContext;
+		super.setApplicationContext(applicationContext);
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoPersistentEntity.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoPersistentEntity.java
@@ -1,12 +1,49 @@
+/*
+ * Copyright 2011-2012 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.mapping;

 import org.springframework.data.mapping.PersistentEntity;

 /**
+ * MongoDB specific {@link PersistentEntity} abstraction.
 * 
 * @author Oliver Gierke
+ * @author Patryk Wasik
 */
 public interface MongoPersistentEntity<T> extends PersistentEntity<T, MongoPersistentProperty> {

+	/**
+	 * Returns the collection the entity shall be persisted to.
+	 * 
+	 * @return
+	 */
 	String getCollection();
+
+	/**
+	 * Returns the {@link MongoPersistentProperty} that represents the version attribute of an entity. Will not be
+	 * {@literal null} if {@link #hasVersionProperty()}.
+	 * 
+	 * @return
+	 */
+	MongoPersistentProperty getVersionProperty();
+
+	/**
+	 * Returns whether the entity has a property representing the version of the entity.
+	 * 
+	 * @return
+	 */
+	boolean hasVersionProperty();
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoPersistentProperty.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoPersistentProperty.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -19,9 +19,10 @@ import org.springframework.core.convert.converter.Converter;
 import org.springframework.data.mapping.PersistentProperty;

 /**
- * Mongo specific {@link org.springframework.data.mapping.PersistentProperty} implementation.
+ * MongoDB specific {@link org.springframework.data.mapping.PersistentProperty} extension.
 * 
 * @author Oliver Gierke
+ * @author Patryk Wasik
 */
 public interface MongoPersistentProperty extends PersistentProperty<MongoPersistentProperty> {

@@ -55,6 +56,13 @@ public interface MongoPersistentProperty extends PersistentProperty<MongoPersist
 	 */
 	DBRef getDBRef();

+	/**
+	 * Returns whether the property is representing the version attribute of an entity.
+	 * 
+	 * @return
+	 */
+	boolean isVersionProperty();
+
 	/**
 	 * Simple {@link Converter} implementation to transform a {@link MongoPersistentProperty} into its field name.
 	 * 
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoSimpleTypes.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/MongoSimpleTypes.java
@@ -19,8 +19,10 @@ import java.math.BigInteger;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;
+import java.util.UUID;
 import java.util.regex.Pattern;

+import org.bson.types.Binary;
 import org.bson.types.CodeWScope;
 import org.bson.types.ObjectId;
 import org.springframework.data.mapping.model.SimpleTypeHolder;
@@ -36,7 +38,7 @@ import com.mongodb.DBRef;
 public abstract class MongoSimpleTypes {

 	public static final Set<Class<?>> AUTOGENERATED_ID_TYPES;
-	
+
 	static {
 		Set<Class<?>> classes = new HashSet<Class<?>>();
 		classes.add(ObjectId.class);
@@ -50,6 +52,8 @@ public abstract class MongoSimpleTypes {
 		simpleTypes.add(CodeWScope.class);
 		simpleTypes.add(DBObject.class);
 		simpleTypes.add(Pattern.class);
+		simpleTypes.add(Binary.class);
+		simpleTypes.add(UUID.class);
 		MONGO_SIMPLE_TYPES = Collections.unmodifiableSet(simpleTypes);
 	}

--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/SimpleMongoMappingContext.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/SimpleMongoMappingContext.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2012-2012 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
+ *      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,
@@ -29,22 +29,25 @@ import org.springframework.data.mongodb.MongoCollectionUtils;
 import org.springframework.data.util.TypeInformation;

 /**
- * 
+ * @deprecated use {@link MongoMappingContext} instead.
 * @author Oliver Gierke
 */
+@Deprecated
 public class SimpleMongoMappingContext extends
 		AbstractMappingContext<SimpleMongoMappingContext.SimpleMongoPersistentEntity<?>, MongoPersistentProperty> {

-	/* (non-Javadoc)
-	 * @see org.springframework.data.mapping.BasicMappingContext#createPersistentEntity(org.springframework.data.util.TypeInformation)
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mapping.context.AbstractMappingContext#createPersistentEntity(org.springframework.data.util.TypeInformation)
 	 */
 	@Override
 	protected <T> SimpleMongoPersistentEntity<T> createPersistentEntity(TypeInformation<T> typeInformation) {
 		return new SimpleMongoPersistentEntity<T>(typeInformation);
 	}

-	/* (non-Javadoc)
-	 * @see org.springframework.data.mapping.BasicMappingContext#createPersistentProperty(java.lang.reflect.Field, java.beans.PropertyDescriptor, org.springframework.data.util.TypeInformation, org.springframework.data.mapping.BasicPersistentEntity)
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mapping.context.AbstractMappingContext#createPersistentProperty(java.lang.reflect.Field, java.beans.PropertyDescriptor, org.springframework.data.mapping.model.MutablePersistentEntity, org.springframework.data.mapping.model.SimpleTypeHolder)
 	 */
 	@Override
 	protected SimplePersistentProperty createPersistentProperty(Field field, PropertyDescriptor descriptor,
@@ -112,6 +115,14 @@ public class SimpleMongoMappingContext extends
 		public DBRef getDBRef() {
 			return null;
 		}
+
+		/* (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.core.mapping.MongoPersistentProperty#isVersion()
+		 */
+		public boolean isVersionProperty() {
+			return false;
+		}
+
 	}

 	static class SimpleMongoPersistentEntity<T> extends BasicPersistentEntity<T, MongoPersistentProperty> implements
@@ -130,5 +141,20 @@ public class SimpleMongoMappingContext extends
 		public String getCollection() {
 			return MongoCollectionUtils.getPreferredCollectionName(getType());
 		}
+
+		/* (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.core.mapping.MongoPersistentEntity#getVersionProperty()
+		 */
+		public MongoPersistentProperty getVersionProperty() {
+			return null;
+		}
+
+		/*
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.core.mapping.MongoPersistentEntity#hasVersionProperty()
+		 */
+		public boolean hasVersionProperty() {
+			return false;
+		}
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/Version.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/Version.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2012 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.mapping;
+
+import static java.lang.annotation.ElementType.*;
+import static java.lang.annotation.RetentionPolicy.*;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+/**
+ * Demarcates a property to be used as version field to implement optimistic locking on entities.
+ * 
+ * @since 1.4
+ * @author Patryk Wasik
+ */
+@Documented
+@Target({ FIELD })
+@Retention(RUNTIME)
+public @interface Version {
+
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/AbstractMongoEventListener.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/AbstractMongoEventListener.java
@@ -15,12 +15,13 @@
 */
 package org.springframework.data.mongodb.core.mapping.event;

-import com.mongodb.DBObject;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.context.ApplicationListener;
 import org.springframework.core.GenericTypeResolver;

+import com.mongodb.DBObject;
+
 /**
 * Base class to implement domain class specific {@link ApplicationListener}s.
 * 
@@ -29,9 +30,9 @@ import org.springframework.core.GenericTypeResolver;
 */
 public abstract class AbstractMongoEventListener<E> implements ApplicationListener<MongoMappingEvent<?>> {

-	protected final Log LOG = LogFactory.getLog(getClass());
+	private static final Logger LOG = LoggerFactory.getLogger(AbstractMongoEventListener.class);
 	private final Class<?> domainClass;
-	
+
 	/**
 	 * Creates a new {@link AbstractMongoEventListener}.
 	 */
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/AfterLoadEvent.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/AfterLoadEvent.java
@@ -39,9 +39,9 @@ public class AfterLoadEvent<T> extends MongoMappingEvent<DBObject> {
 	 * @param type must not be {@literal null}.
 	 */
 	public AfterLoadEvent(DBObject dbo, Class<T> type) {
-		
+
 		super(dbo, dbo);
-		
+
 		Assert.notNull(type, "Type must not be null!");
 		this.type = type;
 	}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/LoggingEventListener.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/LoggingEventListener.java
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2011 by the original author(s).
+ * Copyright 2011-2012 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
+ *      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,
@@ -15,22 +15,31 @@
 */
 package org.springframework.data.mongodb.core.mapping.event;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.mongodb.DBObject;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;

 /**
 * @author Jon Brisbin <jbrisbin@vmware.com>
 */
 public class LoggingEventListener extends AbstractMongoEventListener<Object> {

-	private Log log = LogFactory.getLog(getClass());
+	private static final Logger log = LoggerFactory.getLogger(LoggingEventListener.class);

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener#onBeforeConvert(java.lang.Object)
+	 */
 	@Override
 	public void onBeforeConvert(Object source) {
 		log.info("onBeforeConvert: " + source);
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener#onBeforeSave(java.lang.Object, com.mongodb.DBObject)
+	 */
 	@Override
 	public void onBeforeSave(Object source, DBObject dbo) {
 		try {
@@ -39,19 +48,30 @@ public class LoggingEventListener extends AbstractMongoEventListener<Object> {
 		}
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener#onAfterSave(java.lang.Object, com.mongodb.DBObject)
+	 */
 	@Override
 	public void onAfterSave(Object source, DBObject dbo) {
 		log.info("onAfterSave: " + source + ", " + dbo);
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener#onAfterLoad(com.mongodb.DBObject)
+	 */
 	@Override
 	public void onAfterLoad(DBObject dbo) {
 		log.info("onAfterLoad: " + dbo);
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener#onAfterConvert(com.mongodb.DBObject, java.lang.Object)
+	 */
 	@Override
 	public void onAfterConvert(DBObject dbo, Object source) {
 		log.info("onAfterConvert: " + dbo + ", " + source);
 	}
-
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/ValidatingMongoEventListener.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapping/event/ValidatingMongoEventListener.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012 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.mapping.event;
+
+import java.util.Set;
+
+import javax.validation.ConstraintViolationException;
+import javax.validation.Validator;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.util.Assert;
+
+import com.mongodb.DBObject;
+
+/**
+ * javax.validation dependant entities validator. When it is registered as Spring component its automatically invoked
+ * before entities are saved in database.
+ * 
+ * @author Maciej Walkowiak
+ */
+public class ValidatingMongoEventListener extends AbstractMongoEventListener<Object> {
+
+	private static final Logger LOG = LoggerFactory.getLogger(ValidatingMongoEventListener.class);
+
+	private final Validator validator;
+
+	/**
+	 * Creates a new {@link ValidatingMongoEventListener} using the given {@link Validator}.
+	 * 
+	 * @param validator must not be {@literal null}.
+	 */
+	public ValidatingMongoEventListener(Validator validator) {
+		Assert.notNull(validator);
+		this.validator = validator;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener#onBeforeSave(java.lang.Object, com.mongodb.DBObject)
+	 */
+	@Override
+	@SuppressWarnings({ "rawtypes", "unchecked" })
+	public void onBeforeSave(Object source, DBObject dbo) {
+
+		LOG.debug("Validating object: {}", source);
+		Set violations = validator.validate(source);
+
+		if (!violations.isEmpty()) {
+
+			LOG.info("During object: {} validation violations found: {}", source, violations);
+			throw new ConstraintViolationException(violations);
+		}
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/GroupBy.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/GroupBy.java
@@ -19,24 +19,19 @@ import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;

 /**
- * Collects the parameters required to perform a group operation on a collection.  The query condition and the input collection are specified on the group method as method arguments
- * to be consistent with other operations, e.g. map-reduce.
+ * Collects the parameters required to perform a group operation on a collection. The query condition and the input
+ * collection are specified on the group method as method arguments to be consistent with other operations, e.g.
+ * map-reduce.
 * 
 * @author Mark Pollack
- *
 */
 public class GroupBy {

 	private DBObject dboKeys;
-
 	private String keyFunction;
-
 	private String initial;
-	
 	private DBObject initialDbObject;
-
 	private String reduce;
-
 	private String finalize;

 	public GroupBy(String... keys) {
@@ -71,24 +66,22 @@ public class GroupBy {
 		initial = initialDocument;
 		return this;
 	}
-	
+
 	public GroupBy initialDocument(DBObject initialDocument) {
 		initialDbObject = initialDocument;
 		return this;
 	}
-	
+
 	public GroupBy reduceFunction(String reduceFunction) {
 		reduce = reduceFunction;
 		return this;
 	}
-	
+
 	public GroupBy finalizeFunction(String finalizeFunction) {
 		finalize = finalizeFunction;
 		return this;
 	}

-	
-
 	public DBObject getGroupByObject() {
 		// return new GroupCommand(dbCollection, dboKeys, condition, initial, reduce, finalize);
 		BasicDBObject dbo = new BasicDBObject();
@@ -100,19 +93,15 @@ public class GroupBy {
 		}

 		dbo.put("$reduce", reduce);
-		
-		dbo.put("initial", initialDbObject); 					
+
+		dbo.put("initial", initialDbObject);
 		if (initial != null) {
 			dbo.put("initial", initial);
 		}
 		if (finalize != null) {
 			dbo.put("finalize", finalize);
 		}
-		return dbo;				
+		return dbo;
 	}

-
-
-
-
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/GroupByResults.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/GroupByResults.java
@@ -26,31 +26,27 @@ import com.mongodb.DBObject;
 * Collects the results of executing a group operation.
 * 
 * @author Mark Pollack
- *
 * @param <T> The class in which the results are mapped onto, accessible via an interator.
 */
 public class GroupByResults<T> implements Iterable<T> {

 	private final List<T> mappedResults;
-	
-	private DBObject rawResults;
-	
+	private final DBObject rawResults;
+
 	private double count;
-	
 	private int keys;
-	
 	private String serverUsed;
-	
+
 	public GroupByResults(List<T> mappedResults, DBObject rawResults) {
 		Assert.notNull(mappedResults);
 		Assert.notNull(rawResults);
 		this.mappedResults = mappedResults;
 		this.rawResults = rawResults;
-		parseKeys();		
+		parseKeys();
 		parseCount();
 		parseServerUsed();
 	}
-	
+
 	public double getCount() {
 		return count;
 	}
@@ -58,36 +54,36 @@ public class GroupByResults<T> implements Iterable<T> {
 	public int getKeys() {
 		return keys;
 	}
-	
+
 	public String getServerUsed() {
 		return serverUsed;
 	}

 	public Iterator<T> iterator() {
-			return mappedResults.iterator();
+		return mappedResults.iterator();
 	}
-		
+
 	public DBObject getRawResults() {
 		return rawResults;
 	}
-	
+
 	private void parseCount() {
 		Object object = rawResults.get("count");
 		if (object instanceof Double) {
 			count = (Double) object;
 		}
-		
+
 	}

 	private void parseKeys() {
 		Object object = rawResults.get("keys");
 		if (object instanceof Integer) {
 			keys = (Integer) object;
-		}		
+		}
 	}
-	
+
 	private void parseServerUsed() {
-		//"serverUsed" : "127.0.0.1:27017"
+		// "serverUsed" : "127.0.0.1:27017"
 		Object object = rawResults.get("serverUsed");
 		if (object instanceof String) {
 			serverUsed = (String) object;
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceCounts.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceCounts.java
@@ -15,13 +15,14 @@
 */
 package org.springframework.data.mongodb.core.mapreduce;

+/**
+ * @author Mark Pollack
+ */
 public class MapReduceCounts {

-	private int inputCount;
-	
-	private int emitCount;
-	
-	private int outputCount;
+	private final int inputCount;
+	private final int emitCount;
+	private final int outputCount;

 	public MapReduceCounts(int inputCount, int emitCount, int outputCount) {
 		super();
@@ -42,12 +43,20 @@ public class MapReduceCounts {
 		return outputCount;
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
 	@Override
 	public String toString() {
 		return "MapReduceCounts [inputCount=" + inputCount + ", emitCount=" + emitCount + ", outputCount=" + outputCount
 				+ "]";
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#hashCode()
+	 */
 	@Override
 	public int hashCode() {
 		final int prime = 31;
@@ -58,24 +67,31 @@ public class MapReduceCounts {
 		return result;
 	}

+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#equals(java.lang.Object)
+	 */
 	@Override
 	public boolean equals(Object obj) {
-		if (this == obj)
+		if (this == obj) {
 			return true;
-		if (obj == null)
+		}
+		if (obj == null) {
 			return false;
-		if (getClass() != obj.getClass())
+		}
+		if (getClass() != obj.getClass()) {
 			return false;
+		}
 		MapReduceCounts other = (MapReduceCounts) obj;
-		if (emitCount != other.emitCount)
+		if (emitCount != other.emitCount) {
 			return false;
-		if (inputCount != other.inputCount)
+		}
+		if (inputCount != other.inputCount) {
 			return false;
-		if (outputCount != other.outputCount)
+		}
+		if (outputCount != other.outputCount) {
 			return false;
+		}
 		return true;
 	}
-
-	
-	
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceOptions.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceOptions.java
@@ -39,10 +39,9 @@ public class MapReduceOptions {
 	private Boolean jsMode;

 	private Boolean verbose = true;
-	
+
 	private Map<String, Object> extraOptions = new HashMap<String, Object>();
-	
-	
+
 	/**
 	 * Static factory method to create a MapReduceOptions instance
 	 * 
@@ -189,12 +188,12 @@ public class MapReduceOptions {
 		this.verbose = verbose;
 		return this;
 	}
-	
+
 	/**
-	 * Add additional extra options that may not have a method on this class.  This method will help if you use a 
-	 * version of this client library with a server version that has added additional map-reduce options that do not 
-	 * yet have an method for use in setting them.
-	 * options
+	 * Add additional extra options that may not have a method on this class. This method will help if you use a version
+	 * of this client library with a server version that has added additional map-reduce options that do not yet have an
+	 * method for use in setting them. options
+	 * 
 	 * @param key The key option
 	 * @param value The value of the option
 	 * @return MapReduceOptions so that methods can be chained in a fluent API style
@@ -203,40 +202,39 @@ public class MapReduceOptions {
 		extraOptions.put(key, value);
 		return this;
 	}
-	
+
 	public Map<String, Object> getExtraOptions() {
-			return extraOptions;
+		return extraOptions;
 	}
-	
+
 	public String getFinalizeFunction() {
 		return this.finalizeFunction;
 	}
-	
+
 	public Boolean getJavaScriptMode() {
 		return this.jsMode;
 	}
-	
+
 	public String getOutputCollection() {
 		return this.outputCollection;
 	}
-	
+
 	public String getOutputDatabase() {
 		return this.outputDatabase;
 	}
-	
+
 	public Boolean getOutputSharded() {
 		return this.outputSharded;
 	}
-	
+
 	public MapReduceCommand.OutputType getOutputType() {
 		return this.outputType;
 	}
-	
+
 	public Map<String, Object> getScopeVariables() {
 		return this.scopeVariables;
 	}
-	
-	
+
 	public DBObject getOptionsObject() {
 		BasicDBObject cmd = new BasicDBObject();

@@ -253,7 +251,7 @@ public class MapReduceOptions {
 		if (scopeVariables != null) {
 			cmd.put("scope", scopeVariables);
 		}
-		
+
 		if (!extraOptions.keySet().isEmpty()) {
 			cmd.putAll(extraOptions);
 		}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceResults.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceResults.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 the original author or authors.
+ * Copyright 2011-2012 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.
@@ -24,77 +24,126 @@ import com.mongodb.DBObject;

 /**
 * Collects the results of performing a MapReduce operations.
+ * 
 * @author Mark Pollack
- *
- * @param <T> The class in which the results are mapped onto, accessible via an interator.
+ * @author Oliver Gierke
+ * @param <T> The class in which the results are mapped onto, accessible via an iterator.
 */
 public class MapReduceResults<T> implements Iterable<T> {

 	private final List<T> mappedResults;
-	
-	private DBObject rawResults;
+	private final DBObject rawResults;
+	private final String outputCollection;
+	private final MapReduceTiming mapReduceTiming;
+	private final MapReduceCounts mapReduceCounts;

-	private MapReduceTiming mapReduceTiming;
-	
-	private MapReduceCounts mapReduceCounts;
-	
-	private String outputCollection;
-	
+	/**
+	 * Creates a new {@link MapReduceResults} from the given mapped results and the raw one.
+	 * 
+	 * @param mappedResults must not be {@literal null}.
+	 * @param rawResults must not be {@literal null}.
+	 */
 	public MapReduceResults(List<T> mappedResults, DBObject rawResults) {
+
 		Assert.notNull(mappedResults);
 		Assert.notNull(rawResults);
+
 		this.mappedResults = mappedResults;
 		this.rawResults = rawResults;
-		parseTiming(rawResults);
-		parseCounts(rawResults);		
-		if (rawResults.get("result") != null) {
-			this.outputCollection = (String) rawResults.get("result");
-		}
+		this.mapReduceTiming = parseTiming(rawResults);
+		this.mapReduceCounts = parseCounts(rawResults);
+		this.outputCollection = parseOutputCollection(rawResults);
 	}
-	
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Iterable#iterator()
+	 */
 	public Iterator<T> iterator() {
-			return mappedResults.iterator();
+		return mappedResults.iterator();
 	}
-		
+
 	public MapReduceTiming getTiming() {
 		return mapReduceTiming;
 	}
-	
+
 	public MapReduceCounts getCounts() {
 		return mapReduceCounts;
 	}
-	
+
 	public String getOutputCollection() {
 		return outputCollection;
 	}
-	
+
 	public DBObject getRawResults() {
 		return rawResults;
 	}
-	
-	protected void parseTiming(DBObject rawResults) {
+
+	private MapReduceTiming parseTiming(DBObject rawResults) {
+
 		DBObject timing = (DBObject) rawResults.get("timing");
-		if (timing != null) {
-			if (timing.get("mapTime") != null && timing.get("emitLoop") != null && timing.get("total") != null) {
-				mapReduceTiming =  new MapReduceTiming( (Long)timing.get("mapTime"), 
-																								(Integer)timing.get("emitLoop"), 
-																								(Integer)timing.get("total"));
-			}
-		} else {
-			mapReduceTiming = new MapReduceTiming(-1,-1,-1);
+
+		if (timing == null) {
+			return new MapReduceTiming(-1, -1, -1);
 		}
+
+		if (timing.get("mapTime") != null && timing.get("emitLoop") != null && timing.get("total") != null) {
+			return new MapReduceTiming(getAsLong(timing, "mapTime"), getAsLong(timing, "emitLoop"),
+					getAsLong(timing, "total"));
+		}
+
+		return new MapReduceTiming(-1, -1, -1);
 	}
-	
-	
-	protected void parseCounts(DBObject rawResults) {
+
+	/**
+	 * Returns the value of the source's field with the given key as {@link Long}.
+	 * 
+	 * @param source
+	 * @param key
+	 * @return
+	 */
+	private Long getAsLong(DBObject source, String key) {
+		Object raw = source.get(key);
+		return raw instanceof Long ? (Long) raw : (Integer) raw;
+	}
+
+	/**
+	 * Parses the raw {@link DBObject} result into a {@link MapReduceCounts} value object.
+	 * 
+	 * @param rawResults
+	 * @return
+	 */
+	private MapReduceCounts parseCounts(DBObject rawResults) {
+
 		DBObject counts = (DBObject) rawResults.get("counts");
-		if (counts != null) {
-			if (counts.get("input") != null && counts.get("emit") != null && counts.get("output") != null) {
-				mapReduceCounts =  new MapReduceCounts( (Integer)counts.get("input"), (Integer)counts.get("emit"), (Integer)counts.get("output"));
-			}
-		} else {
-			mapReduceCounts = new MapReduceCounts(-1,-1,-1);
+
+		if (counts == null) {
+			return new MapReduceCounts(-1, -1, -1);
 		}
+
+		if (counts.get("input") != null && counts.get("emit") != null && counts.get("output") != null) {
+			return new MapReduceCounts((Integer) counts.get("input"), (Integer) counts.get("emit"),
+					(Integer) counts.get("output"));
+		}
+
+		return new MapReduceCounts(-1, -1, -1);
+	}
+
+	/**
+	 * Parses the output collection from the raw {@link DBObject} result.
+	 * 
+	 * @param rawResults
+	 * @return
+	 */
+	private String parseOutputCollection(DBObject rawResults) {
+
+		Object resultField = rawResults.get("result");
+
+		if (resultField == null) {
+			return null;
+		}
+
+		return resultField instanceof DBObject ? ((DBObject) resultField).get("collection").toString() : resultField
+				.toString();
 	}
-	
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceTiming.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/mapreduce/MapReduceTiming.java
@@ -18,15 +18,15 @@ package org.springframework.data.mongodb.core.mapreduce;
 public class MapReduceTiming {

 	private long mapTime;
-	
+
 	private long emitLoopTime;
-	
+
 	private long totalTime;
-	
+
 	public MapReduceTiming(long mapTime, long emitLoopTime, long totalTime) {
 		this.mapTime = mapTime;
 		this.emitLoopTime = emitLoopTime;
-		this.totalTime = totalTime;		
+		this.totalTime = totalTime;
 	}

 	public long getMapTime() {
@@ -73,8 +73,5 @@ public class MapReduceTiming {
 			return false;
 		return true;
 	}
-	
-	
-	
-	
+
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Criteria.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Criteria.java
@@ -15,20 +15,24 @@
 */
 package org.springframework.data.mongodb.core.query;

+import static org.springframework.util.ObjectUtils.*;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.regex.Pattern;

-import org.bson.types.BasicBSONList;
+import org.bson.BSON;
 import org.springframework.data.mongodb.InvalidMongoDbApiUsageException;
 import org.springframework.data.mongodb.core.geo.Circle;
 import org.springframework.data.mongodb.core.geo.Point;
 import org.springframework.data.mongodb.core.geo.Shape;
 import org.springframework.util.Assert;
-import org.springframework.util.StringUtils;
+import org.springframework.util.ObjectUtils;

+import com.mongodb.BasicDBList;
 import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;

@@ -69,7 +73,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Static factory method to create a Criteria using the provided key
-	 *
+	 * 
 	 * @param key
 	 * @return
 	 */
@@ -79,7 +83,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Static factory method to create a Criteria using the provided key
-	 *
+	 * 
 	 * @return
 	 */
 	public Criteria and(String key) {
@@ -88,7 +92,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using equality
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -97,16 +101,20 @@ public class Criteria implements CriteriaDefinition {
 			throw new InvalidMongoDbApiUsageException(
 					"Multiple 'is' values declared. You need to use 'and' with multiple criteria");
 		}
-		if (this.criteria.size() > 0 && "$not".equals(this.criteria.keySet().toArray()[this.criteria.size() - 1])) {
+		if (lastOperatorWasNot()) {
 			throw new InvalidMongoDbApiUsageException("Invalid query: 'not' can't be used with 'is' - use 'ne' instead.");
 		}
 		this.isValue = o;
 		return this;
 	}

+	private boolean lastOperatorWasNot() {
+		return this.criteria.size() > 0 && "$not".equals(this.criteria.keySet().toArray()[this.criteria.size() - 1]);
+	}
+
 	/**
 	 * Creates a criterion using the $ne operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -117,7 +125,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $lt operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -128,7 +136,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $lte operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -139,7 +147,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $gt operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -150,7 +158,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $gte operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -161,7 +169,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $in operator
-	 *
+	 * 
 	 * @param o the values to match against
 	 * @return
 	 */
@@ -176,7 +184,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $in operator
-	 *
+	 * 
 	 * @param c the collection containing the values to match against
 	 * @return
 	 */
@@ -187,7 +195,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $nin operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -202,7 +210,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $mod operator
-	 *
+	 * 
 	 * @param value
 	 * @param remainder
 	 * @return
@@ -217,7 +225,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $all operator
-	 *
+	 * 
 	 * @param o
 	 * @return
 	 */
@@ -232,7 +240,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $size operator
-	 *
+	 * 
 	 * @param s
 	 * @return
 	 */
@@ -243,7 +251,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $exists operator
-	 *
+	 * 
 	 * @param b
 	 * @return
 	 */
@@ -254,7 +262,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $type operator
-	 *
+	 * 
 	 * @param t
 	 * @return
 	 */
@@ -265,43 +273,65 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $not meta operator which affects the clause directly following
-	 *
+	 * 
 	 * @return
 	 */
 	public Criteria not() {
-		criteria.put("$not", null);
+		return not(null);
+	}
+
+	private Criteria not(Object value) {
+		criteria.put("$not", value);
 		return this;
 	}

 	/**
 	 * Creates a criterion using a $regex
-	 *
+	 * 
 	 * @param re
 	 * @return
 	 */
 	public Criteria regex(String re) {
-		criteria.put("$regex", re);
-		return this;
+		return regex(re, null);
 	}

 	/**
 	 * Creates a criterion using a $regex and $options
-	 *
+	 * 
 	 * @param re
 	 * @param options
 	 * @return
 	 */
 	public Criteria regex(String re, String options) {
-		criteria.put("$regex", re);
-		if (StringUtils.hasText(options)) {
-			criteria.put("$options", options);
+		return regex(toPattern(re, options));
+	}
+
+	/**
+	 * Syntactical sugar for {@link #is(Object)} making obvious that we create a regex predicate.
+	 * 
+	 * @param pattern
+	 * @return
+	 */
+	public Criteria regex(Pattern pattern) {
+
+		Assert.notNull(pattern);
+
+		if (lastOperatorWasNot()) {
+			return not(pattern);
 		}
+
+		this.isValue = pattern;
 		return this;
 	}

+	private Pattern toPattern(String regex, String options) {
+		Assert.notNull(regex);
+		return Pattern.compile(regex, options == null ? 0 : BSON.regexFlags(options));
+	}
+
 	/**
 	 * Creates a geospatial criterion using a $within $center operation. This is only available for Mongo 1.7 and higher.
-	 *
+	 * 
 	 * @param circle must not be {@literal null}
 	 * @return
 	 */
@@ -320,7 +350,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a geospatial criterion using a $near operation
-	 *
+	 * 
 	 * @param point must not be {@literal null}
 	 * @return
 	 */
@@ -332,7 +362,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a geospatial criterion using a $nearSphere operation. This is only available for Mongo 1.7 and higher.
-	 *
+	 * 
 	 * @param point must not be {@literal null}
 	 * @return
 	 */
@@ -344,7 +374,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a geospatical criterion using a $maxDistance operation, for use with $near
-	 *
+	 * 
 	 * @param maxDistance
 	 * @return
 	 */
@@ -355,7 +385,7 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates a criterion using the $elemMatch operator
-	 *
+	 * 
 	 * @param c
 	 * @return
 	 */
@@ -366,48 +396,45 @@ public class Criteria implements CriteriaDefinition {

 	/**
 	 * Creates an 'or' criteria using the $or operator for all of the provided criteria
-	 *
+	 * 
 	 * @param criteria
 	 */
 	public Criteria orOperator(Criteria... criteria) {
-		BasicBSONList bsonList = createCriteriaList(criteria);
+		BasicDBList bsonList = createCriteriaList(criteria);
 		criteriaChain.add(new Criteria("$or").is(bsonList));
 		return this;
 	}

 	/**
 	 * Creates a 'nor' criteria using the $nor operator for all of the provided criteria
-	 *
+	 * 
 	 * @param criteria
 	 */
 	public Criteria norOperator(Criteria... criteria) {
-		BasicBSONList bsonList = createCriteriaList(criteria);
+		BasicDBList bsonList = createCriteriaList(criteria);
 		criteriaChain.add(new Criteria("$nor").is(bsonList));
 		return this;
 	}

 	/**
 	 * Creates an 'and' criteria using the $and operator for all of the provided criteria
-	 *
+	 * 
 	 * @param criteria
 	 */
 	public Criteria andOperator(Criteria... criteria) {
-		BasicBSONList bsonList = createCriteriaList(criteria);
+		BasicDBList bsonList = createCriteriaList(criteria);
 		criteriaChain.add(new Criteria("$and").is(bsonList));
 		return this;
 	}

-
 	public String getKey() {
 		return this.key;
 	}

 	/*
-		 * (non-Javadoc)
-		 *
-		 * @see org.springframework.datastore.document.mongodb.query.Criteria#
-		 * getCriteriaObject(java.lang.String)
-		 */
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.core.query.CriteriaDefinition#getCriteriaObject()
+	 */
 	public DBObject getCriteriaObject() {
 		if (this.criteriaChain.size() == 1) {
 			return criteriaChain.get(0).getSingleCriteriaObject();
@@ -427,16 +454,17 @@ public class Criteria implements CriteriaDefinition {
 		DBObject dbo = new BasicDBObject();
 		boolean not = false;
 		for (String k : this.criteria.keySet()) {
+			Object value = this.criteria.get(k);
 			if (not) {
 				DBObject notDbo = new BasicDBObject();
-				notDbo.put(k, this.criteria.get(k));
+				notDbo.put(k, value);
 				dbo.put("$not", notDbo);
 				not = false;
 			} else {
-				if ("$not".equals(k)) {
+				if ("$not".equals(k) && value == null) {
 					not = true;
 				} else {
-					dbo.put(k, this.criteria.get(k));
+					dbo.put(k, value);
 				}
 			}
 		}
@@ -450,8 +478,8 @@ public class Criteria implements CriteriaDefinition {
 		return queryCriteria;
 	}

-	private BasicBSONList createCriteriaList(Criteria[] criteria) {
-		BasicBSONList bsonList = new BasicBSONList();
+	private BasicDBList createCriteriaList(Criteria[] criteria) {
+		BasicDBList bsonList = new BasicDBList();
 		for (Criteria c : criteria) {
 			bsonList.add(c.getCriteriaObject());
 		}
@@ -462,12 +490,89 @@ public class Criteria implements CriteriaDefinition {
 		Object existing = dbo.get(key);
 		if (existing == null) {
 			dbo.put(key, value);
-		}
-		else {
-			throw new InvalidMongoDbApiUsageException("Due to limitations of the com.mongodb.BasicDBObject, " +
-					"you can't add a second '" + key + "' expression specified as '" + key + " : " + value + "'. " +
-					"Criteria already contains '" + key + " : " + existing + "'.");
+		} else {
+			throw new InvalidMongoDbApiUsageException("Due to limitations of the com.mongodb.BasicDBObject, "
+					+ "you can't add a second '" + key + "' expression specified as '" + key + " : " + value + "'. "
+					+ "Criteria already contains '" + key + " : " + existing + "'.");
 		}
 	}

+	/* 
+	 * (non-Javadoc)
+	 * @see java.lang.Object#equals(java.lang.Object)
+	 */
+	@Override
+	public boolean equals(Object obj) {
+
+		if (this == obj) {
+			return true;
+		}
+
+		if (obj == null || !getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Criteria that = (Criteria) obj;
+
+		if (this.criteriaChain.size() != that.criteriaChain.size()) {
+			return false;
+		}
+
+		for (int i = 0; i < this.criteriaChain.size(); i++) {
+
+			Criteria left = this.criteriaChain.get(i);
+			Criteria right = that.criteriaChain.get(i);
+
+			if (!simpleCriteriaEquals(left, right)) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	private boolean simpleCriteriaEquals(Criteria left, Criteria right) {
+
+		boolean keyEqual = left.key == null ? right.key == null : left.key.equals(right.key);
+		boolean criteriaEqual = left.criteria.equals(right.criteria);
+		boolean valueEqual = isEqual(left.isValue, right.isValue);
+
+		return keyEqual && criteriaEqual && valueEqual;
+	}
+
+	/**
+	 * Checks the given objects for equality. Handles {@link Pattern} and arrays correctly.
+	 * 
+	 * @param left
+	 * @param right
+	 * @return
+	 */
+	private boolean isEqual(Object left, Object right) {
+
+		if (left == null) {
+			return right == null;
+		}
+
+		if (left instanceof Pattern) {
+			return right instanceof Pattern ? ((Pattern) left).pattern().equals(((Pattern) right).pattern()) : false;
+		}
+
+		return ObjectUtils.nullSafeEquals(left, right);
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see java.lang.Object#hashCode()
+	 */
+	@Override
+	public int hashCode() {
+
+		int result = 17;
+
+		result += nullSafeHashCode(key);
+		result += criteria.hashCode();
+		result += nullSafeHashCode(isValue);
+
+		return result;
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Query.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Query.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -15,28 +15,39 @@
 */
 package org.springframework.data.mongodb.core.query;

+import static org.springframework.data.mongodb.core.query.SerializationUtils.*;
+import static org.springframework.util.ObjectUtils.*;
+
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;

+import org.springframework.data.domain.Pageable;
+import org.springframework.data.domain.Sort;
 import org.springframework.data.mongodb.InvalidMongoDbApiUsageException;
 import org.springframework.util.Assert;

 import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;

+/**
+ * @author Thomas Risberg
+ * @author Oliver Gierke
+ */
 public class Query {

 	private LinkedHashMap<String, Criteria> criteria = new LinkedHashMap<String, Criteria>();
 	private Field fieldSpec;
-	private Sort sort;
+	private Sort coreSort;
+	@SuppressWarnings("deprecation")
+	private org.springframework.data.mongodb.core.query.Sort sort;
 	private int skip;
 	private int limit;
 	private String hint;

 	/**
 	 * Static factory method to create a Query using the provided criteria
-	 *
+	 * 
 	 * @param critera
 	 * @return
 	 */
@@ -56,11 +67,10 @@ public class Query {
 		String key = criteria.getKey();
 		if (existing == null) {
 			this.criteria.put(key, criteria);
-		}
-		else {
-			throw new InvalidMongoDbApiUsageException("Due to limitations of the com.mongodb.BasicDBObject, " +
-					"you can't add a second '" + key + "' criteria. " +
-					"Query already contains '" + existing.getCriteriaObject() + "'.");
+		} else {
+			throw new InvalidMongoDbApiUsageException("Due to limitations of the com.mongodb.BasicDBObject, "
+					+ "you can't add a second '" + key + "' criteria. " + "Query already contains '"
+					+ existing.getCriteriaObject() + "'.");
 		}
 		return this;
 	}
@@ -93,15 +103,62 @@ public class Query {
 		this.hint = name;
 		return this;
 	}
-	
-	public Sort sort() {
+
+	/**
+	 * Returns a {@link org.springframework.data.mongodb.core.query.Sort} instance to define ordering properties.
+	 * 
+	 * @deprecated use {@link #with(Sort)} instead
+	 * @return
+	 */
+	@Deprecated
+	public org.springframework.data.mongodb.core.query.Sort sort() {
 		if (this.sort == null) {
-			this.sort = new Sort();
+			this.sort = new org.springframework.data.mongodb.core.query.Sort();
 		}
-	
+
 		return this.sort;
 	}

+	/**
+	 * Sets the given pagination information on the {@link Query} instance. Will transparently set {@code skip} and
+	 * {@code limit} as well as applying the {@link Sort} instance defined with the {@link Pageable}.
+	 * 
+	 * @param pageable
+	 * @return
+	 */
+	public Query with(Pageable pageable) {
+
+		if (pageable == null) {
+			return this;
+		}
+
+		this.limit = pageable.getPageSize();
+		this.skip = pageable.getOffset();
+
+		return with(pageable.getSort());
+	}
+
+	/**
+	 * Adds a {@link Sort} to the {@link Query} instance.
+	 * 
+	 * @param sort
+	 * @return
+	 */
+	public Query with(Sort sort) {
+
+		if (sort == null) {
+			return this;
+		}
+
+		if (this.coreSort == null) {
+			this.coreSort = sort;
+		} else {
+			this.coreSort = this.coreSort.and(sort);
+		}
+
+		return this;
+	}
+
 	public DBObject getQueryObject() {
 		DBObject dbo = new BasicDBObject();
 		for (String k : criteria.keySet()) {
@@ -119,11 +176,26 @@ public class Query {
 		return fieldSpec.getFieldsObject();
 	}

+	@SuppressWarnings("deprecation")
 	public DBObject getSortObject() {
-		if (this.sort == null) {
+
+		if (this.coreSort == null && this.sort == null) {
 			return null;
 		}
-		return this.sort.getSortObject();
+
+		DBObject dbo = new BasicDBObject();
+
+		if (this.coreSort != null) {
+			for (org.springframework.data.domain.Sort.Order order : this.coreSort) {
+				dbo.put(order.getProperty(), order.isAscending() ? 1 : -1);
+			}
+		}
+
+		if (this.sort != null) {
+			dbo.putAll(this.sort.getSortObject());
+		}
+
+		return dbo;
 	}

 	public int getSkip() {
@@ -137,8 +209,64 @@ public class Query {
 	public String getHint() {
 		return hint;
 	}
-	
+
 	protected List<Criteria> getCriteria() {
 		return new ArrayList<Criteria>(this.criteria.values());
 	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
+	@Override
+	public String toString() {
+		return String.format("Query: %s, Fields: %s, Sort: %s", serializeToJsonSafely(getQueryObject()),
+				serializeToJsonSafely(getFieldsObject()), serializeToJsonSafely(getSortObject()));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#equals(java.lang.Object)
+	 */
+	@Override
+	public boolean equals(Object obj) {
+
+		if (this == obj) {
+			return true;
+		}
+
+		if (obj == null || !getClass().equals(obj.getClass())) {
+			return false;
+		}
+
+		Query that = (Query) obj;
+
+		boolean criteriaEqual = this.criteria.equals(that.criteria);
+		boolean fieldsEqual = this.fieldSpec == null ? that.fieldSpec == null : this.fieldSpec.equals(that.fieldSpec);
+		boolean sortEqual = this.sort == null ? that.sort == null : this.sort.equals(that.sort);
+		boolean hintEqual = this.hint == null ? that.hint == null : this.hint.equals(that.hint);
+		boolean skipEqual = this.skip == that.skip;
+		boolean limitEqual = this.limit == that.limit;
+
+		return criteriaEqual && fieldsEqual && sortEqual && hintEqual && skipEqual && limitEqual;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see java.lang.Object#hashCode()
+	 */
+	@Override
+	public int hashCode() {
+
+		int result = 17;
+
+		result += 31 * criteria.hashCode();
+		result += 31 * nullSafeHashCode(fieldSpec);
+		result += 31 * nullSafeHashCode(sort);
+		result += 31 * nullSafeHashCode(hint);
+		result += 31 * skip;
+		result += 31 * limit;
+
+		return result;
+	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/SerializationUtils.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/SerializationUtils.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2012 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.query;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.springframework.core.convert.converter.Converter;
+
+import com.mongodb.DBObject;
+import com.mongodb.util.JSON;
+
+/**
+ * Utility methods for JSON serialization.
+ * 
+ * @author Oliver Gierke
+ */
+public abstract class SerializationUtils {
+
+	private SerializationUtils() {
+
+	}
+
+	/**
+	 * Serializes the given object into pseudo-JSON meaning it's trying to create a JSON representation as far as possible
+	 * but falling back to the given object's {@link Object#toString()} method if it's not serializable. Useful for
+	 * printing raw {@link DBObject}s containing complex values before actually converting them into Mongo native types.
+	 * 
+	 * @param value
+	 * @return
+	 */
+	public static String serializeToJsonSafely(Object value) {
+
+		if (value == null) {
+			return null;
+		}
+
+		try {
+			return JSON.serialize(value);
+		} catch (Exception e) {
+			if (value instanceof Collection) {
+				return toString((Collection<?>) value);
+			} else if (value instanceof Map) {
+				return toString((Map<?, ?>) value);
+			} else if (value instanceof DBObject) {
+				return toString(((DBObject) value).toMap());
+			} else {
+				return String.format("{ $java : %s }", value.toString());
+			}
+		}
+	}
+
+	private static String toString(Map<?, ?> source) {
+		return iterableToDelimitedString(source.entrySet(), "{ ", " }", new Converter<Entry<?, ?>, Object>() {
+			public Object convert(Entry<?, ?> source) {
+				return String.format("\"%s\" : %s", source.getKey(), serializeToJsonSafely(source.getValue()));
+			}
+		});
+	}
+
+	private static String toString(Collection<?> source) {
+		return iterableToDelimitedString(source, "[ ", " ]", new Converter<Object, Object>() {
+			public Object convert(Object source) {
+				return serializeToJsonSafely(source);
+			}
+		});
+	}
+
+	/**
+	 * Creates a string representation from the given {@link Iterable} prepending the postfix, applying the given
+	 * {@link Converter} to each element before adding it to the result {@link String}, concatenating each element with
+	 * {@literal ,} and applying the postfix.
+	 * 
+	 * @param source
+	 * @param prefix
+	 * @param postfix
+	 * @param transformer
+	 * @return
+	 */
+	private static <T> String iterableToDelimitedString(Iterable<T> source, String prefix, String postfix,
+			Converter<? super T, Object> transformer) {
+
+		StringBuilder builder = new StringBuilder(prefix);
+		Iterator<T> iterator = source.iterator();
+
+		while (iterator.hasNext()) {
+			builder.append(transformer.convert(iterator.next()));
+			if (iterator.hasNext()) {
+				builder.append(", ");
+			}
+		}
+
+		return builder.append(postfix).toString();
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Sort.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Sort.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -21,6 +21,15 @@ import java.util.Map;
 import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;

+/**
+ * Helper class to define sorting criterias for a Query instance.
+ * 
+ * @author Thomas Risberg
+ * @author Oliver Gierke
+ * @deprecated use {@link org.springframework.data.domain.Sort} instead. See
+ *             {@link Query#with(org.springframework.data.domain.Sort)}.
+ */
+@Deprecated
 public class Sort {

 	private Map<String, Order> fieldSpec = new LinkedHashMap<String, Order>();
@@ -40,7 +49,7 @@ public class Sort {
 	public DBObject getSortObject() {
 		DBObject dbo = new BasicDBObject();
 		for (String k : fieldSpec.keySet()) {
-			dbo.put(k, (fieldSpec.get(k).equals(Order.ASCENDING) ? 1 : -1));
+			dbo.put(k, fieldSpec.get(k).equals(Order.ASCENDING) ? 1 : -1);
 		}
 		return dbo;
 	}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -15,13 +15,23 @@
 */
 package org.springframework.data.mongodb.core.query;

+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
+import java.util.List;
+
+import org.springframework.dao.InvalidDataAccessApiUsageException;

 import com.mongodb.BasicDBObject;
 import com.mongodb.DBObject;
-import org.springframework.dao.InvalidDataAccessApiUsageException;

+/**
+ * Class to easily construct MongoDB update clauses.
+ * 
+ * @author Thomas Risberg
+ * @author Mark Pollack
+ * @author Oliver Gierke
+ */
 public class Update {

 	public enum Position {
@@ -40,6 +50,31 @@ public class Update {
 		return new Update().set(key, value);
 	}

+	/**
+	 * Creates an {@link Update} instance from the given {@link DBObject}. Allows to explicitly exlude fields from making
+	 * it into the created {@link Update} object.
+	 * 
+	 * @param object the source {@link DBObject} to create the update from.
+	 * @param exclude the fields to exclude.
+	 * @return
+	 */
+	public static Update fromDBObject(DBObject object, String... exclude) {
+
+		Update update = new Update();
+		List<String> excludeList = Arrays.asList(exclude);
+
+		for (String key : object.keySet()) {
+
+			if (excludeList.contains(key)) {
+				continue;
+			}
+
+			update.set(key, object.get(key));
+		}
+
+		return update;
+	}
+
 	/**
 	 * Update using the $set update modifier
 	 * 
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/AntPath.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/AntPath.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright 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.gridfs;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.springframework.util.Assert;
+
+/**
+ * Value object to abstract Ant paths.
+ * 
+ * @author Oliver Gierke
+ */
+class AntPath {
+
+	private static final String PREFIX_DELIMITER = ":";
+	private static final Pattern WILDCARD_PATTERN = Pattern.compile("\\?|\\*\\*|\\*");
+
+	private final String path;
+
+	/**
+	 * Creates a new {@link AntPath} from the given path.
+	 * 
+	 * @param path must not be {@literal null}.
+	 */
+	public AntPath(String path) {
+		Assert.notNull(path);
+		this.path = path;
+	}
+
+	/**
+	 * Returns whether the path is a pattern.
+	 * 
+	 * @return
+	 */
+	public boolean isPattern() {
+		String path = stripPrefix(this.path);
+		return (path.indexOf('*') != -1 || path.indexOf('?') != -1);
+	}
+
+	private static String stripPrefix(String path) {
+		int index = path.indexOf(PREFIX_DELIMITER);
+		return (index > -1 ? path.substring(index + 1) : path);
+	}
+
+	/**
+	 * Returns the regular expression equivalent of this Ant path.
+	 * 
+	 * @return
+	 */
+	public String toRegex() {
+
+		StringBuilder patternBuilder = new StringBuilder();
+		Matcher m = WILDCARD_PATTERN.matcher(path);
+		int end = 0;
+
+		while (m.find()) {
+
+			patternBuilder.append(quote(path, end, m.start()));
+			String match = m.group();
+
+			if ("?".equals(match)) {
+				patternBuilder.append('.');
+			} else if ("**".equals(match)) {
+				patternBuilder.append(".*");
+			} else if ("*".equals(match)) {
+				patternBuilder.append("[^/]*");
+			}
+
+			end = m.end();
+		}
+
+		patternBuilder.append(quote(path, end, path.length()));
+		return patternBuilder.toString();
+	}
+
+	private static String quote(String s, int start, int end) {
+		if (start == end) {
+			return "";
+		}
+		return Pattern.quote(s.substring(start, end));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see java.lang.Object#toString()
+	 */
+	@Override
+	public String toString() {
+		return path;
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsCriteria.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsCriteria.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright 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.gridfs;
+
+import org.springframework.data.mongodb.core.query.Criteria;
+
+/**
+ * GridFs-specific helper class to define {@link Criteria}s.
+ * 
+ * @author Oliver Gierke
+ */
+public class GridFsCriteria extends Criteria {
+
+	/**
+	 * Creates a new {@link GridFsCriteria} for the given key.
+	 * 
+	 * @param key
+	 */
+	public GridFsCriteria(String key) {
+		super(key);
+	}
+
+	/**
+	 * Creates a {@link GridFsCriteria} for restrictions on the file's metadata.
+	 * 
+	 * @return
+	 */
+	public static GridFsCriteria whereMetaData() {
+		return new GridFsCriteria("metadata");
+	}
+
+	/**
+	 * Creates a {@link GridFsCriteria} for restrictions on a single file's metadata item.
+	 * 
+	 * @param metadataKey
+	 * @return
+	 */
+	public static GridFsCriteria whereMetaData(String metadataKey) {
+		String extension = metadataKey == null ? "" : "." + metadataKey;
+		return new GridFsCriteria(String.format("metadata%s", extension));
+	}
+
+	/**
+	 * Creates a {@link GridFsCriteria} for restrictions on the file's name.
+	 * 
+	 * @return
+	 */
+	public static GridFsCriteria whereFilename() {
+		return new GridFsCriteria("filename");
+	}
+
+	/**
+	 * Creates a {@link GridFsCriteria} for restrictions on the file's content type.
+	 * 
+	 * @return
+	 */
+	public static GridFsCriteria whereContentType() {
+		return new GridFsCriteria("contentType");
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsOperations.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsOperations.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright 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.gridfs;
+
+import java.io.InputStream;
+import java.util.List;
+
+import org.springframework.core.io.support.ResourcePatternResolver;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.mongodb.core.query.Query;
+
+import com.mongodb.DBObject;
+import com.mongodb.gridfs.GridFSDBFile;
+import com.mongodb.gridfs.GridFSFile;
+
+/**
+ * Collection of operations to store and read files from MongoDB GridFS.
+ * 
+ * @author Oliver Gierke
+ */
+public interface GridFsOperations extends ResourcePatternResolver {
+
+	/**
+	 * Stores the given content into a file with the given name.
+	 * 
+	 * @param content must not be {@literal null}.
+	 * @param filename must not be {@literal null} or empty.
+	 * @return the {@link GridFSFile} just created
+	 */
+	GridFSFile store(InputStream content, String filename);
+
+	/**
+	 * Stores the given content into a file with the given name using the given metadata. The metadata object will be
+	 * marshalled before writing.
+	 * 
+	 * @param content must not be {@literal null}.
+	 * @param filename must not be {@literal null} or empty.
+	 * @param metadata
+	 * @return the {@link GridFSFile} just created
+	 */
+	GridFSFile store(InputStream content, String filename, Object metadata);
+
+	/**
+	 * Stores the given content into a file with the given name using the given metadata.
+	 * 
+	 * @param content must not be {@literal null}.
+	 * @param filename must not be {@literal null} or empty.
+	 * @param metadata must not be {@literal null}.
+	 * @return the {@link GridFSFile} just created
+	 */
+	GridFSFile store(InputStream content, String filename, DBObject metadata);
+
+	/**
+	 * Returns all files matching the given query. Note, that currently {@link Sort} criterias defined at the
+	 * {@link Query} will not be regarded as MongoDB does not support ordering for GridFS file access.
+	 * 
+	 * @see https://jira.mongodb.org/browse/JAVA-431
+	 * @param query
+	 * @return
+	 */
+	List<GridFSDBFile> find(Query query);
+
+	/**
+	 * Returns a single file matching the given query or {@literal null} in case no file matches.
+	 * 
+	 * @param query
+	 * @return
+	 */
+	GridFSDBFile findOne(Query query);
+
+	/**
+	 * Deletes all files matching the given {@link Query}.
+	 * 
+	 * @param query
+	 */
+	void delete(Query query);
+
+	/**
+	 * Returns all {@link GridFsResource} with the given file name.
+	 * 
+	 * @param filename
+	 * @return
+	 * @see ResourcePatternResolver#getResource(String)
+	 */
+	GridFsResource getResource(String filename);
+
+	/**
+	 * Returns all {@link GridFsResource}s matching the given file name pattern.
+	 * 
+	 * @param filenamePattern
+	 * @return
+	 * @see ResourcePatternResolver#getResources(String)
+	 */
+	GridFsResource[] getResources(String filenamePattern);
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsResource.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsResource.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 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.gridfs;
+
+import java.io.IOException;
+
+import org.springframework.core.io.InputStreamResource;
+import org.springframework.core.io.Resource;
+
+import com.mongodb.gridfs.GridFSDBFile;
+
+/**
+ * {@link GridFSDBFile} based {@link Resource} implementation.
+ * 
+ * @author Oliver Gierke
+ */
+public class GridFsResource extends InputStreamResource {
+
+	private final GridFSDBFile file;
+
+	/**
+	 * Creates a new {@link GridFsResource} from the given {@link GridFSDBFile}.
+	 * 
+	 * @param file must not be {@literal null}.
+	 */
+	public GridFsResource(GridFSDBFile file) {
+		super(file.getInputStream());
+		this.file = file;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.core.io.AbstractResource#contentLength()
+	 */
+	@Override
+	public long contentLength() throws IOException {
+		return file.getLength();
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.core.io.AbstractResource#getFilename()
+	 */
+	@Override
+	public String getFilename() throws IllegalStateException {
+		return file.getFilename();
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.core.io.AbstractResource#lastModified()
+	 */
+	@Override
+	public long lastModified() throws IOException {
+		return file.getUploadDate().getTime();
+	}
+
+	/**
+	 * Returns the {@link Resource}'s id.
+	 * 
+	 * @return
+	 */
+	public Object getId() {
+		return file.getId();
+	}
+
+	/**
+	 * Returns the {@link Resource}'s content type.
+	 * 
+	 * @return
+	 */
+	public String getContentType() {
+		return file.getContentType();
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsTemplate.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/gridfs/GridFsTemplate.java
@@ -0,0 +1,194 @@
+/*
+ * Copyright 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.gridfs;
+
+import static org.springframework.data.mongodb.core.query.Query.*;
+import static org.springframework.data.mongodb.gridfs.GridFsCriteria.*;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.core.io.support.ResourcePatternResolver;
+import org.springframework.data.mongodb.MongoDbFactory;
+import org.springframework.data.mongodb.core.convert.MongoConverter;
+import org.springframework.data.mongodb.core.convert.QueryMapper;
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.util.Assert;
+import org.springframework.util.StringUtils;
+
+import com.mongodb.BasicDBObject;
+import com.mongodb.DB;
+import com.mongodb.DBObject;
+import com.mongodb.gridfs.GridFS;
+import com.mongodb.gridfs.GridFSDBFile;
+import com.mongodb.gridfs.GridFSFile;
+import com.mongodb.gridfs.GridFSInputFile;
+
+/**
+ * {@link GridFsOperations} implementation to store content into MongoDB GridFS.
+ * 
+ * @author Oliver Gierke
+ */
+public class GridFsTemplate implements GridFsOperations, ResourcePatternResolver {
+
+	private final MongoDbFactory dbFactory;
+	private final String bucket;
+	private final MongoConverter converter;
+	private final QueryMapper queryMapper;
+
+	/**
+	 * Creates a new {@link GridFsTemplate} using the given {@link MongoDbFactory} and {@link MongoConverter}.
+	 * 
+	 * @param dbFactory must not be {@literal null}.
+	 * @param converter must not be {@literal null}.
+	 */
+	public GridFsTemplate(MongoDbFactory dbFactory, MongoConverter converter) {
+		this(dbFactory, converter, null);
+	}
+
+	/**
+	 * Creates a new {@link GridFsTemplate} using the given {@link MongoDbFactory} and {@link MongoConverter}.
+	 * 
+	 * @param dbFactory must not be {@literal null}.
+	 * @param converter must not be {@literal null}.
+	 * @param bucket
+	 */
+	public GridFsTemplate(MongoDbFactory dbFactory, MongoConverter converter, String bucket) {
+
+		Assert.notNull(dbFactory);
+		Assert.notNull(converter);
+
+		this.dbFactory = dbFactory;
+		this.converter = converter;
+		this.bucket = bucket;
+
+		this.queryMapper = new QueryMapper(converter);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.gridfs.GridFsOperations#store(java.io.InputStream, java.lang.String)
+	 */
+	public GridFSFile store(InputStream content, String filename) {
+		return store(content, filename, (Object) null);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.gridfs.GridFsOperations#store(java.io.InputStream, java.lang.String, java.lang.Object)
+	 */
+	public GridFSFile store(InputStream content, String filename, Object metadata) {
+
+		DBObject dbObject = new BasicDBObject();
+		converter.write(metadata, dbObject);
+		return store(content, filename, dbObject);
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.gridfs.GridFsOperations#store(java.io.InputStream, java.lang.String, com.mongodb.DBObject)
+	 */
+	public GridFSFile store(InputStream content, String filename, DBObject metadata) {
+
+		Assert.notNull(content);
+		Assert.hasText(filename);
+		Assert.notNull(metadata);
+
+		GridFSInputFile file = getGridFs().createFile(content);
+		file.setFilename(filename);
+		file.setMetaData(metadata);
+		file.save();
+
+		return file;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.gridfs.GridFsOperations#find(com.mongodb.DBObject)
+	 */
+	public List<GridFSDBFile> find(Query query) {
+		return getGridFs().find(getMappedQuery(query));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.gridfs.GridFsOperations#findOne(com.mongodb.DBObject)
+	 */
+	public GridFSDBFile findOne(Query query) {
+		return getGridFs().findOne(getMappedQuery(query));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.mongodb.gridfs.GridFsOperations#delete(org.springframework.data.mongodb.core.query.Query)
+	 */
+	public void delete(Query query) {
+		getGridFs().remove(getMappedQuery(query));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.core.io.ResourceLoader#getClassLoader()
+	 */
+	public ClassLoader getClassLoader() {
+		return dbFactory.getClass().getClassLoader();
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.core.io.ResourceLoader#getResource(java.lang.String)
+	 */
+	public GridFsResource getResource(String location) {
+		return new GridFsResource(findOne(query(whereFilename().is(location))));
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.core.io.support.ResourcePatternResolver#getResources(java.lang.String)
+	 */
+	public GridFsResource[] getResources(String locationPattern) {
+
+		if (!StringUtils.hasText(locationPattern)) {
+			return new GridFsResource[0];
+		}
+
+		AntPath path = new AntPath(locationPattern);
+
+		if (path.isPattern()) {
+
+			List<GridFSDBFile> files = find(query(whereFilename().regex(path.toRegex())));
+			List<GridFsResource> resources = new ArrayList<GridFsResource>(files.size());
+
+			for (GridFSDBFile file : files) {
+				resources.add(new GridFsResource(file));
+			}
+
+			return resources.toArray(new GridFsResource[resources.size()]);
+		}
+
+		return new GridFsResource[] { getResource(locationPattern) };
+	}
+
+	private DBObject getMappedQuery(Query query) {
+		return query == null ? null : queryMapper.getMappedObject(query.getQueryObject(), null);
+	}
+
+	private GridFS getGridFs() {
+		DB db = dbFactory.getDb();
+		return bucket == null ? new GridFS(db) : new GridFS(db, bucket);
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/monitor/AbstractMonitor.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/monitor/AbstractMonitor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2002-2012 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.
@@ -15,13 +15,15 @@
 */
 package org.springframework.data.mongodb.monitor;

+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.authentication.UserCredentials;
+import org.springframework.data.mongodb.core.MongoDbUtils;
+
 import com.mongodb.CommandResult;
 import com.mongodb.DB;
 import com.mongodb.Mongo;
 import com.mongodb.MongoException;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.springframework.data.mongodb.core.MongoDbUtils;

 /**
 * Base class to encapsulate common configuration settings when connecting to a database
@@ -30,7 +32,7 @@ import org.springframework.data.mongodb.core.MongoDbUtils;
 */
 public abstract class AbstractMonitor {

-	private final Log logger = LogFactory.getLog(getClass());
+	private final Logger logger = LoggerFactory.getLogger(getClass());

 	protected Mongo mongo;
 	private String username;
@@ -51,7 +53,6 @@ public abstract class AbstractMonitor {
 	 * @param password The password to use
 	 */
 	public void setPassword(String password) {
-
 		this.password = password;
 	}

@@ -65,6 +66,6 @@ public abstract class AbstractMonitor {
 	}

 	public DB getDb(String databaseName) {
-		return MongoDbUtils.getDB(mongo, databaseName, username, password == null ? null : password.toCharArray());
+		return MongoDbUtils.getDB(mongo, databaseName, new UserCredentials(username, password));
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/MongoRepository.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/MongoRepository.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -32,22 +32,19 @@ public interface MongoRepository<T, ID extends Serializable> extends PagingAndSo

 	/*
 	 * (non-Javadoc)
-	 * 
-	 * @see org.springframework.data.repository.Repository#save(java.lang.Iterable)
+	 * @see org.springframework.data.repository.CrudRepository#save(java.lang.Iterable)
 	 */
-	List<T> save(Iterable<? extends T> entites);
+	<S extends T> List<S> save(Iterable<S> entites);

 	/*
-	  * (non-Javadoc)
-	  *
-	  * @see org.springframework.data.repository.Repository#findAll()
-	  */
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.CrudRepository#findAll()
+	 */
 	List<T> findAll();

 	/*
-	  * (non-Javadoc)
-	  *
-	  * @see org.springframework.data.repository.PagingAndSortingRepository#findAll(org.springframework.data.domain.Sort)
-	  */
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.PagingAndSortingRepository#findAll(org.springframework.data.domain.Sort)
+	 */
 	List<T> findAll(Sort sort);
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/cdi/MongoRepositoryBean.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/cdi/MongoRepositoryBean.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2012 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.repository.cdi;
+
+import java.lang.annotation.Annotation;
+import java.util.Set;
+
+import javax.enterprise.context.spi.CreationalContext;
+import javax.enterprise.inject.spi.Bean;
+import javax.enterprise.inject.spi.BeanManager;
+
+import org.springframework.data.mongodb.core.MongoOperations;
+import org.springframework.data.mongodb.repository.support.MongoRepositoryFactory;
+import org.springframework.data.repository.cdi.CdiRepositoryBean;
+import org.springframework.util.Assert;
+
+/**
+ * {@link CdiRepositoryBean} to create Mongo repository instances.
+ * 
+ * @author Oliver Gierke
+ */
+public class MongoRepositoryBean<T> extends CdiRepositoryBean<T> {
+
+	private final Bean<MongoOperations> operations;
+
+	/**
+	 * Creates a new {@link MongoRepositoryBean}.
+	 * 
+	 * @param operations must not be {@literal null}.
+	 * @param qualifiers must not be {@literal null}.
+	 * @param repositoryType must not be {@literal null}.
+	 * @param beanManager must not be {@literal null}.
+	 */
+	public MongoRepositoryBean(Bean<MongoOperations> operations, Set<Annotation> qualifiers, Class<T> repositoryType,
+			BeanManager beanManager) {
+
+		super(qualifiers, repositoryType, beanManager);
+
+		Assert.notNull(operations);
+		this.operations = operations;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see javax.enterprise.inject.spi.Bean#getScope()
+	 */
+	public Class<? extends Annotation> getScope() {
+		return operations.getScope();
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.cdi.CdiRepositoryBean#create(javax.enterprise.context.spi.CreationalContext, java.lang.Class)
+	 */
+	@Override
+	protected T create(CreationalContext<T> creationalContext, Class<T> repositoryType) {
+
+		MongoOperations mongoOperations = getDependencyInstance(operations, MongoOperations.class);
+		MongoRepositoryFactory factory = new MongoRepositoryFactory(mongoOperations);
+
+		return factory.getRepository(repositoryType);
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/cdi/MongoRepositoryExtension.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/cdi/MongoRepositoryExtension.java
@@ -0,0 +1,111 @@
+/*
+ * Copyright 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.repository.cdi;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import javax.enterprise.event.Observes;
+import javax.enterprise.inject.UnsatisfiedResolutionException;
+import javax.enterprise.inject.spi.AfterBeanDiscovery;
+import javax.enterprise.inject.spi.Bean;
+import javax.enterprise.inject.spi.BeanManager;
+import javax.enterprise.inject.spi.ProcessBean;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.mongodb.core.MongoOperations;
+import org.springframework.data.repository.cdi.CdiRepositoryExtensionSupport;
+
+/**
+ * CDI extension to export Mongo repositories.
+ * 
+ * @author Oliver Gierke
+ */
+public class MongoRepositoryExtension extends CdiRepositoryExtensionSupport {
+
+	private static final Logger LOG = LoggerFactory.getLogger(MongoRepositoryExtension.class);
+
+	private final Map<Set<Annotation>, Bean<MongoOperations>> mongoOperations = new HashMap<Set<Annotation>, Bean<MongoOperations>>();
+
+	public MongoRepositoryExtension() {
+		LOG.info("Activating CDI extension for Spring Data MongoDB repositories.");
+	}
+
+	@SuppressWarnings("unchecked")
+	<X> void processBean(@Observes ProcessBean<X> processBean) {
+
+		Bean<X> bean = processBean.getBean();
+
+		for (Type type : bean.getTypes()) {
+			if (type instanceof Class<?> && MongoOperations.class.isAssignableFrom((Class<?>) type)) {
+				if (LOG.isDebugEnabled()) {
+					LOG.debug(String.format("Discovered %s with qualifiers %s.", MongoOperations.class.getName(),
+							bean.getQualifiers()));
+				}
+
+				// Store the EntityManager bean using its qualifiers.
+				mongoOperations.put(new HashSet<Annotation>(bean.getQualifiers()), (Bean<MongoOperations>) bean);
+			}
+		}
+	}
+
+	void afterBeanDiscovery(@Observes AfterBeanDiscovery afterBeanDiscovery, BeanManager beanManager) {
+
+		for (Entry<Class<?>, Set<Annotation>> entry : getRepositoryTypes()) {
+
+			Class<?> repositoryType = entry.getKey();
+			Set<Annotation> qualifiers = entry.getValue();
+
+			// Create the bean representing the repository.
+			Bean<?> repositoryBean = createRepositoryBean(repositoryType, qualifiers, beanManager);
+
+			if (LOG.isInfoEnabled()) {
+				LOG.info(String.format("Registering bean for %s with qualifiers %s.", repositoryType.getName(), qualifiers));
+			}
+
+			// Register the bean to the container.
+			afterBeanDiscovery.addBean(repositoryBean);
+		}
+	}
+
+	/**
+	 * Creates a {@link Bean}.
+	 * 
+	 * @param <T> The type of the repository.
+	 * @param repositoryType The class representing the repository.
+	 * @param beanManager The BeanManager instance.
+	 * @return The bean.
+	 */
+	private <T> Bean<T> createRepositoryBean(Class<T> repositoryType, Set<Annotation> qualifiers, BeanManager beanManager) {
+
+		// Determine the MongoOperations bean which matches the qualifiers of the repository.
+		Bean<MongoOperations> mongoOperations = this.mongoOperations.get(qualifiers);
+
+		if (mongoOperations == null) {
+			throw new UnsatisfiedResolutionException(String.format("Unable to resolve a bean for '%s' with qualifiers %s.",
+					MongoOperations.class.getName(), qualifiers));
+		}
+
+		// Construct and return the repository bean.
+		return new MongoRepositoryBean<T>(mongoOperations, qualifiers, repositoryType, beanManager);
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/EnableMongoRepositories.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/EnableMongoRepositories.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2012 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.repository.config;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.context.annotation.ComponentScan.Filter;
+import org.springframework.context.annotation.Import;
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean;
+import org.springframework.data.repository.query.QueryLookupStrategy;
+import org.springframework.data.repository.query.QueryLookupStrategy.Key;
+
+/**
+ * Annotation to activate MongoDB repositories. If no base package is configured through either {@link #value()},
+ * {@link #basePackages()} or {@link #basePackageClasses()} it will trigger scanning of the package of annotated class.
+ * 
+ * @author Oliver Gierke
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+@Import(MongoRepositoriesRegistrar.class)
+public @interface EnableMongoRepositories {
+
+	/**
+	 * Alias for the {@link #basePackages()} attribute. Allows for more concise annotation declarations e.g.:
+	 * {@code @EnableJpaRepositories("org.my.pkg")} instead of {@code @EnableJpaRepositories(basePackages="org.my.pkg")}.
+	 */
+	String[] value() default {};
+
+	/**
+	 * Base packages to scan for annotated components. {@link #value()} is an alias for (and mutually exclusive with) this
+	 * attribute. Use {@link #basePackageClasses()} for a type-safe alternative to String-based package names.
+	 */
+	String[] basePackages() default {};
+
+	/**
+	 * Type-safe alternative to {@link #basePackages()} for specifying the packages to scan for annotated components. The
+	 * package of each class specified will be scanned. Consider creating a special no-op marker class or interface in
+	 * each package that serves no purpose other than being referenced by this attribute.
+	 */
+	Class<?>[] basePackageClasses() default {};
+
+	/**
+	 * Specifies which types are eligible for component scanning. Further narrows the set of candidate components from
+	 * everything in {@link #basePackages()} to everything in the base packages that matches the given filter or filters.
+	 */
+	Filter[] includeFilters() default {};
+
+	/**
+	 * Specifies which types are not eligible for component scanning.
+	 */
+	Filter[] excludeFilters() default {};
+
+	/**
+	 * Returns the postfix to be used when looking up custom repository implementations. Defaults to {@literal Impl}. So
+	 * for a repository named {@code PersonRepository} the corresponding implementation class will be looked up scanning
+	 * for {@code PersonRepositoryImpl}.
+	 * 
+	 * @return
+	 */
+	String repositoryImplementationPostfix() default "";
+
+	/**
+	 * Configures the location of where to find the Spring Data named queries properties file. Will default to
+	 * {@code META-INFO/mongo-named-queries.properties}.
+	 * 
+	 * @return
+	 */
+	String namedQueriesLocation() default "";
+
+	/**
+	 * Returns the key of the {@link QueryLookupStrategy} to be used for lookup queries for query methods. Defaults to
+	 * {@link Key#CREATE_IF_NOT_FOUND}.
+	 * 
+	 * @return
+	 */
+	Key queryLookupStrategy() default Key.CREATE_IF_NOT_FOUND;
+
+	/**
+	 * Returns the {@link FactoryBean} class to be used for each repository instance. Defaults to
+	 * {@link MongoRepositoryFactoryBean}.
+	 * 
+	 * @return
+	 */
+	Class<?> repositoryFactoryBeanClass() default MongoRepositoryFactoryBean.class;
+
+	/**
+	 * Configures the name of the {@link MongoTemplate} bean to be used with the repositories detected.
+	 * 
+	 * @return
+	 */
+	String mongoTemplateRef() default "mongoTemplate";
+
+	/**
+	 * Whether to automatically create indexes for query methods defined in the repository interface.
+	 * 
+	 * @return
+	 */
+	boolean createIndexesForQueryMethods() default false;
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/MongoRepositoriesRegistrar.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/MongoRepositoriesRegistrar.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012 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.repository.config;
+
+import java.lang.annotation.Annotation;
+
+import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
+import org.springframework.data.repository.config.RepositoryBeanDefinitionRegistrarSupport;
+import org.springframework.data.repository.config.RepositoryConfigurationExtension;
+
+/**
+ * Mongo-specific {@link ImportBeanDefinitionRegistrar}.
+ * 
+ * @author Oliver Gierke
+ */
+class MongoRepositoriesRegistrar extends RepositoryBeanDefinitionRegistrarSupport {
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryBeanDefinitionRegistrarSupport#getAnnotation()
+	 */
+	@Override
+	protected Class<? extends Annotation> getAnnotation() {
+		return EnableMongoRepositories.class;
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryBeanDefinitionRegistrarSupport#getExtension()
+	 */
+	@Override
+	protected RepositoryConfigurationExtension getExtension() {
+		return new MongoRepositoryConfigurationExtension();
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/MongoRepositoryConfigParser.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/MongoRepositoryConfigParser.java
@@ -1,54 +0,0 @@
-/*
- * Copyright 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.repository.config;
-
-import org.springframework.beans.factory.support.BeanDefinitionBuilder;
-import org.springframework.beans.factory.support.BeanDefinitionRegistry;
-import org.springframework.data.mongodb.repository.config.SimpleMongoRepositoryConfiguration.MongoRepositoryConfiguration;
-import org.springframework.data.repository.config.AbstractRepositoryConfigDefinitionParser;
-import org.w3c.dom.Element;
-
-/**
- * {@link org.springframework.beans.factory.xml.BeanDefinitionParser} to create Mongo DB repositories from classpath
- * scanning or manual definition.
- * 
- * @author Oliver Gierke
- */
-public class MongoRepositoryConfigParser extends
-		AbstractRepositoryConfigDefinitionParser<SimpleMongoRepositoryConfiguration, MongoRepositoryConfiguration> {
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.repository.config.AbstractRepositoryConfigDefinitionParser#getGlobalRepositoryConfigInformation(org.w3c.dom.Element)
-	 */
-	@Override
-	protected SimpleMongoRepositoryConfiguration getGlobalRepositoryConfigInformation(Element element) {
-
-		return new SimpleMongoRepositoryConfiguration(element);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.repository.config.AbstractRepositoryConfigDefinitionParser#postProcessBeanDefinition(org.springframework.data.repository.config.SingleRepositoryConfigInformation, org.springframework.beans.factory.support.BeanDefinitionBuilder, org.springframework.beans.factory.support.BeanDefinitionRegistry, java.lang.Object)
-	 */
-	@Override
-	protected void postProcessBeanDefinition(MongoRepositoryConfiguration context, BeanDefinitionBuilder builder,
-			BeanDefinitionRegistry registry, Object beanSource) {
-
-		builder.addPropertyReference("template", context.getMongoTemplateRef());
-		builder.addPropertyValue("createIndexesForQueryMethods", context.getCreateQueryIndexes());
-	}
-}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/MongoRepositoryConfigurationExtension.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/MongoRepositoryConfigurationExtension.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2012 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.repository.config;
+
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.core.annotation.AnnotationAttributes;
+import org.springframework.data.config.ParsingUtils;
+import org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean;
+import org.springframework.data.repository.config.AnnotationRepositoryConfigurationSource;
+import org.springframework.data.repository.config.RepositoryConfigurationExtension;
+import org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport;
+import org.springframework.data.repository.config.XmlRepositoryConfigurationSource;
+import org.w3c.dom.Element;
+
+/**
+ * {@link RepositoryConfigurationExtension} for MongoDB.
+ * 
+ * @author Oliver Gierke
+ */
+public class MongoRepositoryConfigurationExtension extends RepositoryConfigurationExtensionSupport {
+
+	private static final String MONGO_TEMPLATE_REF = "mongo-template-ref";
+	private static final String CREATE_QUERY_INDEXES = "create-query-indexes";
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#getModulePrefix()
+	 */
+	@Override
+	protected String getModulePrefix() {
+		return "mongo";
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtension#getRepositoryFactoryClassName()
+	 */
+	public String getRepositoryFactoryClassName() {
+		return MongoRepositoryFactoryBean.class.getName();
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#postProcess(org.springframework.beans.factory.support.BeanDefinitionBuilder, org.springframework.data.repository.config.XmlRepositoryConfigurationSource)
+	 */
+	@Override
+	public void postProcess(BeanDefinitionBuilder builder, XmlRepositoryConfigurationSource config) {
+
+		Element element = config.getElement();
+
+		ParsingUtils.setPropertyReference(builder, element, MONGO_TEMPLATE_REF, "mongoOperations");
+		ParsingUtils.setPropertyValue(builder, element, CREATE_QUERY_INDEXES, "createIndexesForQueryMethods");
+	}
+
+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport#postProcess(org.springframework.beans.factory.support.BeanDefinitionBuilder, org.springframework.data.repository.config.AnnotationRepositoryConfigurationSource)
+	 */
+	@Override
+	public void postProcess(BeanDefinitionBuilder builder, AnnotationRepositoryConfigurationSource config) {
+
+		AnnotationAttributes attributes = config.getAttributes();
+
+		builder.addPropertyReference("mongoOperations", attributes.getString("mongoTemplateRef"));
+		builder.addPropertyValue("createIndexesForQueryMethods", attributes.getBoolean("createIndexesForQueryMethods"));
+	}
+}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/SimpleMongoRepositoryConfiguration.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/config/SimpleMongoRepositoryConfiguration.java
@@ -1,196 +0,0 @@
-/*
- * Copyright 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.repository.config;
-
-import org.springframework.data.mongodb.repository.support.MongoRepositoryFactoryBean;
-import org.springframework.data.repository.config.AutomaticRepositoryConfigInformation;
-import org.springframework.data.repository.config.ManualRepositoryConfigInformation;
-import org.springframework.data.repository.config.RepositoryConfig;
-import org.springframework.data.repository.config.SingleRepositoryConfigInformation;
-import org.springframework.util.StringUtils;
-import org.w3c.dom.Element;
-
-/**
- * {@link RepositoryConfig} implementation to create {@link MongoRepositoryConfiguration} instances for both automatic
- * and manual configuration.
- * 
- * @author Oliver Gierke
- */
-public class SimpleMongoRepositoryConfiguration
-		extends
-		RepositoryConfig<SimpleMongoRepositoryConfiguration.MongoRepositoryConfiguration, SimpleMongoRepositoryConfiguration> {
-
-	private static final String MONGO_TEMPLATE_REF = "mongo-template-ref";
-	private static final String CREATE_QUERY_INDEXES = "create-query-indexes";
-	private static final String DEFAULT_MONGO_TEMPLATE_REF = "mongoTemplate";
-
-	/**
-	 * Creates a new {@link SimpleMongoRepositoryConfiguration} for the given {@link Element}.
-	 * 
-	 * @param repositoriesElement
-	 */
-	protected SimpleMongoRepositoryConfiguration(Element repositoriesElement) {
-
-		super(repositoriesElement, MongoRepositoryFactoryBean.class.getName());
-	}
-
-	/**
-	 * Returns the bean name of the {@link org.springframework.data.mongodb.core.core.MongoTemplate} to be referenced.
-	 * 
-	 * @return
-	 */
-	public String getMongoTemplateRef() {
-
-		String templateRef = getSource().getAttribute(MONGO_TEMPLATE_REF);
-		return StringUtils.hasText(templateRef) ? templateRef : DEFAULT_MONGO_TEMPLATE_REF;
-	}
-
-	/**
-	 * Returns whether to create indexes for query methods.
-	 * 
-	 * @return
-	 */
-	public boolean getCreateQueryIndexes() {
-
-		String createQueryIndexes = getSource().getAttribute(CREATE_QUERY_INDEXES);
-		return StringUtils.hasText(createQueryIndexes) ? Boolean.parseBoolean(createQueryIndexes) : false;
-	}
-
-	/*
-	* (non-Javadoc)
-	*
-	* @see
-	* org.springframework.data.repository.config.GlobalRepositoryConfigInformation
-	* #getAutoconfigRepositoryInformation(java.lang.String)
-	*/
-	public MongoRepositoryConfiguration getAutoconfigRepositoryInformation(String interfaceName) {
-
-		return new AutomaticMongoRepositoryConfiguration(interfaceName, this);
-	}
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.repository.config.RepositoryConfig#getNamedQueriesLocation()
-	 */
-	public String getNamedQueriesLocation() {
-		return "classpath*:META-INF/mongo-named-queries.properties";
-	}
-
-	/*
-	* (non-Javadoc)
-	*
-	* @see org.springframework.data.repository.config.RepositoryConfig#
-	* createSingleRepositoryConfigInformationFor(org.w3c.dom.Element)
-	*/
-	@Override
-	protected MongoRepositoryConfiguration createSingleRepositoryConfigInformationFor(Element element) {
-
-		return new ManualMongoRepositoryConfiguration(element, this);
-	}
-
-	/**
-	 * Simple interface for configuration values specific to Mongo repositories.
-	 * 
-	 * @author Oliver Gierke
-	 */
-	public interface MongoRepositoryConfiguration extends
-			SingleRepositoryConfigInformation<SimpleMongoRepositoryConfiguration> {
-
-		String getMongoTemplateRef();
-
-		boolean getCreateQueryIndexes();
-	}
-
-	/**
-	 * Implements manual lookup of the additional attributes.
-	 * 
-	 * @author Oliver Gierke
-	 */
-	private static class ManualMongoRepositoryConfiguration extends
-			ManualRepositoryConfigInformation<SimpleMongoRepositoryConfiguration> implements MongoRepositoryConfiguration {
-
-		/**
-		 * Creates a new {@link ManualMongoRepositoryConfiguration} for the given {@link Element} and parent.
-		 * 
-		 * @param element
-		 * @param parent
-		 */
-		public ManualMongoRepositoryConfiguration(Element element, SimpleMongoRepositoryConfiguration parent) {
-
-			super(element, parent);
-		}
-
-		/*
-		* (non-Javadoc)
-		*
-		* @see org.springframework.data.mongodb.repository.config.
-		* SimpleMongoRepositoryConfiguration
-		* .MongoRepositoryConfiguration#getMongoTemplateRef()
-		*/
-		public String getMongoTemplateRef() {
-
-			return getAttribute(MONGO_TEMPLATE_REF);
-		}
-
-		/* (non-Javadoc)
-		 * @see org.springframework.data.mongodb.config.SimpleMongoRepositoryConfiguration.MongoRepositoryConfiguration#getCreateQueryIndexes()
-		 */
-		public boolean getCreateQueryIndexes() {
-
-			String attribute = getAttribute(CREATE_QUERY_INDEXES);
-			return attribute == null ? false : Boolean.parseBoolean(attribute);
-		}
-	}
-
-	/**
-	 * Implements the lookup of the additional attributes during automatic configuration.
-	 * 
-	 * @author Oliver Gierke
-	 */
-	private static class AutomaticMongoRepositoryConfiguration extends
-			AutomaticRepositoryConfigInformation<SimpleMongoRepositoryConfiguration> implements MongoRepositoryConfiguration {
-
-		/**
-		 * Creates a new {@link AutomaticMongoRepositoryConfiguration} for the given interface and parent.
-		 * 
-		 * @param interfaceName
-		 * @param parent
-		 */
-		public AutomaticMongoRepositoryConfiguration(String interfaceName, SimpleMongoRepositoryConfiguration parent) {
-
-			super(interfaceName, parent);
-		}
-
-		/*
-		* (non-Javadoc)
-		*
-		* @see org.springframework.data.mongodb.repository.config.
-		* SimpleMongoRepositoryConfiguration
-		* .MongoRepositoryConfiguration#getMongoTemplateRef()
-		*/
-		public String getMongoTemplateRef() {
-
-			return getParent().getMongoTemplateRef();
-		}
-
-		/* (non-Javadoc)
-		 * @see org.springframework.data.mongodb.config.SimpleMongoRepositoryConfiguration.MongoRepositoryConfiguration#getCreateQueryIndexes()
-		 */
-		public boolean getCreateQueryIndexes() {
-			return getParent().getCreateQueryIndexes();
-		}
-	}
-}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/AbstractMongoQuery.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/AbstractMongoQuery.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2011 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -15,15 +15,13 @@
 */
 package org.springframework.data.mongodb.repository.query;

-import static org.springframework.data.mongodb.repository.query.QueryUtils.applyPagination;
-
 import java.util.List;

 import org.springframework.data.domain.PageImpl;
 import org.springframework.data.domain.Pageable;
-import org.springframework.data.mongodb.core.CollectionCallback;
 import org.springframework.data.mongodb.core.MongoOperations;
 import org.springframework.data.mongodb.core.geo.Distance;
+import org.springframework.data.mongodb.core.geo.GeoPage;
 import org.springframework.data.mongodb.core.geo.GeoResult;
 import org.springframework.data.mongodb.core.geo.GeoResults;
 import org.springframework.data.mongodb.core.geo.Point;
@@ -34,10 +32,6 @@ import org.springframework.data.repository.query.RepositoryQuery;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.util.Assert;

-import com.mongodb.DBCollection;
-import com.mongodb.DBCursor;
-import com.mongodb.DBObject;
-
 /**
 * Base class for {@link RepositoryQuery} implementations for Mongo.
 * 
@@ -46,45 +40,50 @@ import com.mongodb.DBObject;
 public abstract class AbstractMongoQuery implements RepositoryQuery {

 	private final MongoQueryMethod method;
-	private final MongoOperations mongoOperations;
+	private final MongoOperations operations;

 	/**
 	 * Creates a new {@link AbstractMongoQuery} from the given {@link MongoQueryMethod} and {@link MongoOperations}.
 	 * 
-	 * @param method
-	 * @param template
+	 * @param method must not be {@literal null}.
+	 * @param operations must not be {@literal null}.
 	 */
-	public AbstractMongoQuery(MongoQueryMethod method, MongoOperations template) {
+	public AbstractMongoQuery(MongoQueryMethod method, MongoOperations operations) {

-		Assert.notNull(template);
+		Assert.notNull(operations);
 		Assert.notNull(method);

 		this.method = method;
-		this.mongoOperations = template;
+		this.operations = operations;
 	}

-	/* (non-Javadoc)
+	/* 
+	 * (non-Javadoc)
 	 * @see org.springframework.data.repository.query.RepositoryQuery#getQueryMethod()
 	 */
 	public MongoQueryMethod getQueryMethod() {
-
 		return method;
 	}

 	/*
-	  * (non-Javadoc)
-	  *
-	  * @see org.springframework.data.repository.query.RepositoryQuery#execute(java .lang.Object[])
-	  */
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.query.RepositoryQuery#execute(java.lang.Object[])
+	 */
 	public Object execute(Object[] parameters) {

 		MongoParameterAccessor accessor = new MongoParametersParameterAccessor(method, parameters);
-		Query query = createQuery(new ConvertingParameterAccessor(mongoOperations.getConverter(), accessor));
+		Query query = createQuery(new ConvertingParameterAccessor(operations.getConverter(), accessor));

-		if (method.isGeoNearQuery()) {
+		if (method.isGeoNearQuery() && method.isPageQuery()) {
+
+			MongoParameterAccessor countAccessor = new MongoParametersParameterAccessor(method, parameters);
+			Query countQuery = createCountQuery(new ConvertingParameterAccessor(operations.getConverter(), countAccessor));
+
+			return new GeoNearExecution(accessor).execute(query, countQuery);
+		} else if (method.isGeoNearQuery()) {
 			return new GeoNearExecution(accessor).execute(query);
 		} else if (method.isCollectionQuery()) {
-			return new CollectionExecution().execute(query);
+			return new CollectionExecution(accessor.getPageable()).execute(query);
 		} else if (method.isPageQuery()) {
 			return new PagedExecution(accessor.getPageable()).execute(query);
 		} else {
@@ -93,14 +92,25 @@ public abstract class AbstractMongoQuery implements RepositoryQuery {
 	}

 	/**
-	 * Create a {@link Query} instance using the given {@link ParameterAccessor}
+	 * Creates a {@link Query} instance using the given {@link ParameterAccessor}
 	 * 
-	 * @param accessor
-	 * @param converter
+	 * @param accessor must not be {@literal null}.
 	 * @return
 	 */
 	protected abstract Query createQuery(ConvertingParameterAccessor accessor);

+	/**
+	 * Creates a {@link Query} instance using the given {@link ConvertingParameterAccessor}. Will delegate to
+	 * {@link #createQuery(ConvertingParameterAccessor)} by default but allows customization of the count query to be
+	 * triggered.
+	 * 
+	 * @param accessor must not be {@literal null}.
+	 * @return
+	 */
+	protected Query createCountQuery(ConvertingParameterAccessor accessor) {
+		return createQuery(accessor);
+	}
+
 	private abstract class Execution {

 		abstract Object execute(Query query);
@@ -110,7 +120,7 @@ public abstract class AbstractMongoQuery implements RepositoryQuery {
 			MongoEntityInformation<?, ?> metadata = method.getEntityInformation();

 			String collectionName = metadata.getCollectionName();
-			return mongoOperations.find(query, metadata.getJavaType(), collectionName);
+			return operations.find(query, metadata.getJavaType(), collectionName);
 		}
 	}

@@ -121,15 +131,19 @@ public abstract class AbstractMongoQuery implements RepositoryQuery {
 	 */
 	class CollectionExecution extends Execution {

+		private final Pageable pageable;
+
+		CollectionExecution(Pageable pageable) {
+			this.pageable = pageable;
+		}
+
 		/*
-		   * (non-Javadoc)
-		   *
-		   * @see org.springframework.data.mongodb.repository.MongoQuery.Execution #execute(com.mongodb.DBObject)
-		   */
+		 * (non-Javadoc)
+		 * @see org.springframework.data.mongodb.repository.query.AbstractMongoQuery.Execution#execute(org.springframework.data.mongodb.core.query.Query)
+		 */
 		@Override
 		public Object execute(Query query) {
-
-			return readCollection(query);
+			return readCollection(query.with(pageable));
 		}
 	}

@@ -162,24 +176,12 @@ public abstract class AbstractMongoQuery implements RepositoryQuery {
 		Object execute(Query query) {

 			MongoEntityInformation<?, ?> metadata = method.getEntityInformation();
-			int count = getCollectionCursor(metadata.getCollectionName(), query.getQueryObject()).count();
+			long count = operations.count(query, metadata.getCollectionName());

-			List<?> result = mongoOperations.find(applyPagination(query, pageable), metadata.getJavaType(),
-					metadata.getCollectionName());
+			List<?> result = operations.find(query.with(pageable), metadata.getJavaType(), metadata.getCollectionName());

 			return new PageImpl(result, pageable, count);
 		}
-
-		private DBCursor getCollectionCursor(String collectionName, final DBObject query) {
-
-			return mongoOperations.execute(collectionName, new CollectionCallback<DBCursor>() {
-
-				public DBCursor doInCollection(DBCollection collection) {
-
-					return collection.find(query);
-				}
-			});
-		}
 	}

 	/**
@@ -197,19 +199,19 @@ public abstract class AbstractMongoQuery implements RepositoryQuery {
 		Object execute(Query query) {

 			MongoEntityInformation<?, ?> entityInformation = method.getEntityInformation();
-			return mongoOperations.findOne(query, entityInformation.getJavaType());
+			return operations.findOne(query, entityInformation.getJavaType());
 		}
 	}

 	/**
 	 * {@link Execution} to execute geo-near queries.
-	 *
+	 * 
 	 * @author Oliver Gierke
 	 */
 	class GeoNearExecution extends Execution {
-		
+
 		private final MongoParameterAccessor accessor;
-		
+
 		public GeoNearExecution(MongoParameterAccessor accessor) {
 			this.accessor = accessor;
 		}
@@ -220,27 +222,48 @@ public abstract class AbstractMongoQuery implements RepositoryQuery {
 		 */
 		@Override
 		Object execute(Query query) {
-			
+
+			GeoResults<?> results = doExecuteQuery(query);
+			return isListOfGeoResult() ? results.getContent() : results;
+		}
+
+		/**
+		 * Executes the given {@link Query} to return a page.
+		 * 
+		 * @param query must not be {@literal null}.
+		 * @param countQuery must not be {@literal null}.
+		 * @return
+		 */
+		Object execute(Query query, Query countQuery) {
+
+			MongoEntityInformation<?, ?> information = method.getEntityInformation();
+			long count = operations.count(countQuery, information.getCollectionName());
+
+			return new GeoPage<Object>(doExecuteQuery(query), accessor.getPageable(), count);
+		}
+
+		@SuppressWarnings("unchecked")
+		private GeoResults<Object> doExecuteQuery(Query query) {
+
 			Point nearLocation = accessor.getGeoNearLocation();
 			NearQuery nearQuery = NearQuery.near(nearLocation);
-			
+
 			if (query != null) {
 				nearQuery.query(query);
 			}
-			
+
 			Distance maxDistance = accessor.getMaxDistance();
 			if (maxDistance != null) {
 				nearQuery.maxDistance(maxDistance);
 			}
-			
-			MongoEntityInformation<?,?> entityInformation = method.getEntityInformation();
-			GeoResults<?> results = mongoOperations.geoNear(nearQuery, entityInformation.getJavaType(), entityInformation.getCollectionName());
-			
-			return isListOfGeoResult() ? results.getContent() : results;
+
+			MongoEntityInformation<?, ?> entityInformation = method.getEntityInformation();
+			return (GeoResults<Object>) operations.geoNear(nearQuery, entityInformation.getJavaType(),
+					entityInformation.getCollectionName());
 		}
-		
+
 		private boolean isListOfGeoResult() {
-			
+
 			TypeInformation<?> returnType = method.getReturnType();
 			return returnType.getType().equals(List.class) && GeoResult.class.equals(returnType.getComponentType());
 		}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/ConvertingParameterAccessor.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/ConvertingParameterAccessor.java
@@ -15,15 +15,23 @@
 */
 package org.springframework.data.mongodb.repository.query;

+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.Iterator;
+import java.util.List;

 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.mongodb.core.convert.MongoWriter;
 import org.springframework.data.mongodb.core.geo.Distance;
 import org.springframework.data.mongodb.core.geo.Point;
+import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.repository.query.ParameterAccessor;
 import org.springframework.util.Assert;
+import org.springframework.util.CollectionUtils;
+
+import com.mongodb.DBRef;

 /**
 * Custom {@link ParameterAccessor} that uses a {@link MongoWriter} to serialize parameters into Mongo format.
@@ -42,10 +50,10 @@ public class ConvertingParameterAccessor implements MongoParameterAccessor {
 	 * @param delegate must not be {@literal null}.
 	 */
 	public ConvertingParameterAccessor(MongoWriter<?> writer, MongoParameterAccessor delegate) {
-		
+
 		Assert.notNull(writer);
 		Assert.notNull(delegate);
-		
+
 		this.writer = writer;
 		this.delegate = delegate;
 	}
@@ -92,7 +100,7 @@ public class ConvertingParameterAccessor implements MongoParameterAccessor {
 	public Distance getMaxDistance() {
 		return delegate.getMaxDistance();
 	}
-	
+
 	/* (non-Javadoc)
 	 * @see org.springframework.data.mongodb.repository.MongoParameterAccessor#getGeoNearLocation()
 	 */
@@ -110,6 +118,14 @@ public class ConvertingParameterAccessor implements MongoParameterAccessor {
 		return writer.convertToMongoType(value);
 	}

+	/* 
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.query.ParameterAccessor#hasBindableNullValue()
+	 */
+	public boolean hasBindableNullValue() {
+		return delegate.hasBindableNullValue();
+	}
+
 	/**
 	 * Custom {@link Iterator} to convert items before returning them.
 	 * 
@@ -129,42 +145,86 @@ public class ConvertingParameterAccessor implements MongoParameterAccessor {
 		}

 		/*
-		   * (non-Javadoc)
-		   *
-		   * @see java.util.Iterator#hasNext()
-		   */
+		 * (non-Javadoc)
+		 * @see java.util.Iterator#hasNext()
+		 */
 		public boolean hasNext() {
 			return delegate.hasNext();
 		}

 		/*
-		   * (non-Javadoc)
-		   *
-		   * @see java.util.Iterator#next()
-		   */
+		 * (non-Javadoc)
+		 * @see java.util.Iterator#next()
+		 */
 		public Object next() {
-
 			return delegate.next();
 		}

-		/* (non-Javadoc)
+		/* 
+		 * (non-Javadoc)
 		 * @see org.springframework.data.mongodb.repository.ConvertingParameterAccessor.PotentiallConvertingIterator#nextConverted()
 		 */
-		public Object nextConverted() {
+		public Object nextConverted(MongoPersistentProperty property) {

-			return getConvertedValue(next());
+			Object next = next();
+
+			if (next == null) {
+				return null;
+			}
+
+			if (property.isAssociation()) {
+				if (next.getClass().isArray() || next instanceof Iterable) {
+
+					List<DBRef> dbRefs = new ArrayList<DBRef>();
+					for (Object element : asCollection(next)) {
+						dbRefs.add(writer.toDBRef(element, property));
+					}
+
+					return dbRefs;
+				} else {
+					return writer.toDBRef(next, property);
+				}
+			}
+
+			return getConvertedValue(next);
 		}

 		/*
-		   * (non-Javadoc)
-		   *
-		   * @see java.util.Iterator#remove()
-		   */
+		 * (non-Javadoc)
+		 * @see java.util.Iterator#remove()
+		 */
 		public void remove() {
 			delegate.remove();
 		}
 	}

+	/**
+	 * Returns the given object as {@link Collection}. Will do a copy of it if it implements {@link Iterable} or is an
+	 * array. Will return an empty {@link Collection} in case {@literal null} is given. Will wrap all other types into a
+	 * single-element collction
+	 * 
+	 * @param source
+	 * @return
+	 */
+	private static Collection<?> asCollection(Object source) {
+
+		if (source instanceof Iterable) {
+
+			List<Object> result = new ArrayList<Object>();
+			for (Object element : (Iterable<?>) source) {
+				result.add(element);
+			}
+
+			return result;
+		}
+
+		if (source == null) {
+			return Collections.emptySet();
+		}
+
+		return source.getClass().isArray() ? CollectionUtils.arrayToList(source) : Collections.singleton(source);
+	}
+
 	/**
 	 * Custom {@link Iterator} that adds a method to access elements in a converted manner.
 	 * 
@@ -177,6 +237,6 @@ public class ConvertingParameterAccessor implements MongoParameterAccessor {
 		 * 
 		 * @return
 		 */
-		Object nextConverted();
+		Object nextConverted(MongoPersistentProperty property);
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/EntityInformationCreator.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/EntityInformationCreator.java
@@ -17,10 +17,9 @@ package org.springframework.data.mongodb.repository.query;

 import java.io.Serializable;

-
 /**
 * Interface for components being able to provide {@link EntityInformationCreator} for a given {@link Class}.
- *
+ * 
 * @author Oliver Gierke
 */
 public interface EntityInformationCreator {
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoParameterAccessor.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoParameterAccessor.java
@@ -33,7 +33,7 @@ public interface MongoParameterAccessor extends ParameterAccessor {
 	 *         at all or the given value for it was {@literal null}.
 	 */
 	Distance getMaxDistance();
-	
+
 	/**
 	 * Returns the {@link Point} to use for a geo-near query.
 	 * 
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoParameters.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoParameters.java
@@ -35,7 +35,7 @@ public class MongoParameters extends Parameters {

 	private final Integer distanceIndex;
 	private Integer nearIndex;
-	
+
 	/**
 	 * Creates a new {@link MongoParameters} instance from the given {@link Method} and {@link MongoQueryMethod}.
 	 * 
@@ -43,55 +43,56 @@ public class MongoParameters extends Parameters {
 	 * @param queryMethod must not be {@literal null}.
 	 */
 	public MongoParameters(Method method, boolean isGeoNearMethod) {
-		
+
 		super(method);
 		List<Class<?>> parameterTypes = Arrays.asList(method.getParameterTypes());
 		this.distanceIndex = parameterTypes.indexOf(Distance.class);
-		
+
 		if (this.nearIndex == null && isGeoNearMethod) {
 			this.nearIndex = getNearIndex(parameterTypes);
 		} else if (this.nearIndex == null) {
 			this.nearIndex = -1;
 		}
 	}
-	
+
 	@SuppressWarnings("unchecked")
 	private final int getNearIndex(List<Class<?>> parameterTypes) {
-		
+
 		for (Class<?> reference : Arrays.asList(Point.class, double[].class)) {
-			
+
 			int nearIndex = parameterTypes.indexOf(reference);
-			
+
 			if (nearIndex == -1) {
 				continue;
 			}
-			
+
 			if (nearIndex == parameterTypes.lastIndexOf(reference)) {
 				return nearIndex;
 			} else {
 				throw new IllegalStateException("Multiple Point parameters found but none annotated with @Near!");
 			}
 		}
-		
+
 		return -1;
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.repository.query.Parameters#createParameter(org.springframework.core.MethodParameter)
 	 */
 	@Override
 	protected Parameter createParameter(MethodParameter parameter) {
-		
+
 		MongoParameter mongoParameter = new MongoParameter(parameter);
-		
+
 		// Detect manually annotated @Near Point and reject multiple annotated ones
 		if (this.nearIndex == null && mongoParameter.isManuallyAnnotatedNearParameter()) {
 			this.nearIndex = mongoParameter.getIndex();
 		} else if (mongoParameter.isManuallyAnnotatedNearParameter()) {
-			throw new IllegalStateException(String.format("Found multiple @Near annotations ond method %s! Only one allowed!", parameter.getMethod().toString()));
+			throw new IllegalStateException(String.format(
+					"Found multiple @Near annotations ond method %s! Only one allowed!", parameter.getMethod().toString()));
 		}
-		
+
 		return mongoParameter;
 	}

@@ -103,7 +104,7 @@ public class MongoParameters extends Parameters {
 	public int getDistanceIndex() {
 		return distanceIndex;
 	}
-	
+
 	/**
 	 * Returns the index of the parameter to be used to start a geo-near query from.
 	 * 
@@ -112,16 +113,16 @@ public class MongoParameters extends Parameters {
 	public int getNearIndex() {
 		return nearIndex;
 	}
-	
+
 	/**
 	 * Custom {@link Parameter} implementation adding parameters of type {@link Distance} to the special ones.
-	 *
+	 * 
 	 * @author Oliver Gierke
 	 */
 	class MongoParameter extends Parameter {
-		
+
 		private final MethodParameter parameter;
-		
+
 		/**
 		 * Creates a new {@link MongoParameter}.
 		 * 
@@ -130,7 +131,7 @@ public class MongoParameters extends Parameters {
 		MongoParameter(MethodParameter parameter) {
 			super(parameter);
 			this.parameter = parameter;
-			
+
 			if (!isPoint() && hasNearAnnotation()) {
 				throw new IllegalArgumentException("Near annotation is only allowed at Point parameter!");
 			}
@@ -142,23 +143,22 @@ public class MongoParameters extends Parameters {
 		 */
 		@Override
 		public boolean isSpecialParameter() {
-			return super.isSpecialParameter() || getType().equals(Distance.class)
-					|| isNearParameter();
+			return super.isSpecialParameter() || getType().equals(Distance.class) || isNearParameter();
 		}
-		
+
 		private boolean isNearParameter() {
 			Integer nearIndex = MongoParameters.this.nearIndex;
 			return nearIndex != null && nearIndex.equals(getIndex());
 		}
-		
+
 		private boolean isManuallyAnnotatedNearParameter() {
 			return isPoint() && hasNearAnnotation();
 		}
-		
+
 		private boolean isPoint() {
 			return getType().equals(Point.class) || getType().equals(double[].class);
 		}
-		
+
 		private boolean hasNearAnnotation() {
 			return parameter.getParameterAnnotation(Near.class) != null;
 		}
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoParametersParameterAccessor.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoParametersParameterAccessor.java
@@ -21,13 +21,13 @@ import org.springframework.data.repository.query.ParametersParameterAccessor;

 /**
 * Mongo-specific {@link ParametersParameterAccessor} to allow access to the {@link Distance} parameter.
- *
+ * 
 * @author Oliver Gierke
 */
 public class MongoParametersParameterAccessor extends ParametersParameterAccessor implements MongoParameterAccessor {

 	private final MongoQueryMethod method;
-	
+
 	/**
 	 * Creates a new {@link MongoParametersParameterAccessor}.
 	 * 
@@ -47,25 +47,25 @@ public class MongoParametersParameterAccessor extends ParametersParameterAccesso
 		int index = method.getParameters().getDistanceIndex();
 		return index == -1 ? null : (Distance) getValue(index);
 	}
-	
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.data.mongodb.repository.MongoParameterAccessor#getGeoNearLocation()
 	 */
 	public Point getGeoNearLocation() {
-		
+
 		int nearIndex = method.getParameters().getNearIndex();
-		
+
 		if (nearIndex == -1) {
 			return null;
 		}
-		
+
 		Object value = getValue(nearIndex);
-		
+
 		if (value == null) {
 			return null;
 		}
-		
+
 		if (value instanceof double[]) {
 			double[] typedValue = (double[]) value;
 			if (typedValue.length != 2) {
@@ -74,7 +74,7 @@ public class MongoParametersParameterAccessor extends ParametersParameterAccesso
 				return new Point(typedValue[0], typedValue[1]);
 			}
 		}
-		
+
 		return (Point) value;
 	}
 }
--- a/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoQueryCreator.java
+++ b/spring-data-mongodb/src/main/java/org/springframework/data/mongodb/repository/query/MongoQueryCreator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2010-2012 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.
@@ -20,8 +20,8 @@ import static org.springframework.data.mongodb.core.query.Criteria.*;
 import java.util.Collection;
 import java.util.Iterator;

-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mapping.context.PersistentPropertyPath;
@@ -31,7 +31,6 @@ import org.springframework.data.mongodb.core.geo.Shape;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.mongodb.core.query.Criteria;
 import org.springframework.data.mongodb.core.query.CriteriaDefinition;
-import org.springframework.data.mongodb.core.query.OrQuery;
 import org.springframework.data.mongodb.core.query.Query;
 import org.springframework.data.mongodb.repository.query.ConvertingParameterAccessor.PotentiallyConvertingIterator;
 import org.springframework.data.repository.query.parser.AbstractQueryCreator;
@@ -45,9 +44,9 @@ import org.springframework.util.Assert;
 * 
 * @author Oliver Gierke
 */
-class MongoQueryCreator extends AbstractQueryCreator<Query, Query> {
+class MongoQueryCreator extends AbstractQueryCreator<Query, Criteria> {

-	private static final Log LOG = LogFactory.getLog(MongoQueryCreator.class);
+	private static final Logger LOG = LoggerFactory.getLogger(MongoQueryCreator.class);
 	private final MongoParameterAccessor accessor;
 	private final boolean isGeoNearQuery;

@@ -88,110 +87,114 @@ class MongoQueryCreator extends AbstractQueryCreator<Query, Query> {
 	}

 	/*
-	* (non-Javadoc)
-	* @see org.springframework.data.repository.query.parser.AbstractQueryCreator#create(org.springframework.data.repository.query.parser.Part, java.util.Iterator)
-	*/
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.query.parser.AbstractQueryCreator#create(org.springframework.data.repository.query.parser.Part, java.util.Iterator)
+	 */
 	@Override
-	protected Query create(Part part, Iterator<Object> iterator) {
+	protected Criteria create(Part part, Iterator<Object> iterator) {

 		if (isGeoNearQuery && part.getType().equals(Type.NEAR)) {
 			return null;
 		}

 		PersistentPropertyPath<MongoPersistentProperty> path = context.getPersistentPropertyPath(part.getProperty());
-		Criteria criteria = from(part.getType(),
+		MongoPersistentProperty property = path.getLeafProperty();
+		Criteria criteria = from(part.getType(), property,
 				where(path.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE)),
 				(PotentiallyConvertingIterator) iterator);

-		return new Query(criteria);
+		return criteria;
 	}

 	/*
-	* (non-Javadoc)
-	* @see org.springframework.data.repository.query.parser.AbstractQueryCreator#and(org.springframework.data.repository.query.parser.Part, java.lang.Object, java.util.Iterator)
-	*/
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.query.parser.AbstractQueryCreator#and(org.springframework.data.repository.query.parser.Part, java.lang.Object, java.util.Iterator)
+	 */
 	@Override
-	protected Query and(Part part, Query base, Iterator<Object> iterator) {
+	protected Criteria and(Part part, Criteria base, Iterator<Object> iterator) {

 		if (base == null) {
 			return create(part, iterator);
 		}

-		PersistentPropertyPath<MongoPersistentProperty> path2 = context.getPersistentPropertyPath(part.getProperty());
+		PersistentPropertyPath<MongoPersistentProperty> path = context.getPersistentPropertyPath(part.getProperty());
+		MongoPersistentProperty property = path.getLeafProperty();

-		Criteria criteria = from(part.getType(),
-				where(path2.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE)),
+		return from(part.getType(), property,
+				base.and(path.toDotPath(MongoPersistentProperty.PropertyToFieldNameConverter.INSTANCE)),
 				(PotentiallyConvertingIterator) iterator);
-		return base.addCriteria(criteria);
 	}

 	/*
-	* (non-Javadoc)
-	*
-	* @see
-	* org.springframework.data.repository.query.parser.AbstractQueryCreator
-	* #or(java.lang.Object, java.lang.Object)
-	*/
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.query.parser.AbstractQueryCreator#or(java.lang.Object, java.lang.Object)
+	 */
 	@Override
-	protected Query or(Query base, Query query) {
-		return new OrQuery(new Query[] { base, query });
+	protected Criteria or(Criteria base, Criteria criteria) {
+
+		Criteria result = new Criteria();
+		return result.orOperator(base, criteria);
 	}

 	/*
-	* (non-Javadoc)
-	*
-	* @see
-	* org.springframework.data.repository.query.parser.AbstractQueryCreator
-	* #complete(java.lang.Object, org.springframework.data.domain.Sort)
-	*/
+	 * (non-Javadoc)
+	 * @see org.springframework.data.repository.query.parser.AbstractQueryCreator#complete(java.lang.Object, org.springframework.data.domain.Sort)
+	 */
 	@Override
-	protected Query complete(Query query, Sort sort) {
+	protected Query complete(Criteria criteria, Sort sort) {

-		if (query == null) {
+		if (criteria == null) {
 			return null;
 		}

-		QueryUtils.applySorting(query, sort);
+		Query query = new Query(criteria).with(sort);

 		if (LOG.isDebugEnabled()) {
-			LOG.debug("Created query " + query.getQueryObject());
+			LOG.debug("Created query " + query);
 		}

 		return query;
 	}

 	/**
-	 * Populates the given {@link CriteriaDefinition} depending on the {@link Type} given.
+	 * Populates the given {@link CriteriaDefinition} depending on the {@link Part} given.
 	 * 
-	 * @param type
+	 * @param part
+	 * @param property
 	 * @param criteria
 	 * @param parameters
 	 * @return
 	 */
-	private Criteria from(Type type, Criteria criteria, PotentiallyConvertingIterator parameters) {
+	private Criteria from(Type type, MongoPersistentProperty property, Criteria criteria,
+			PotentiallyConvertingIterator parameters) {

 		switch (type) {
+		case AFTER:
 		case GREATER_THAN:
-			return criteria.gt(parameters.nextConverted());
+			return criteria.gt(parameters.nextConverted(property));
 		case GREATER_THAN_EQUAL:
-			return criteria.gte(parameters.nextConverted());
+			return criteria.gte(parameters.nextConverted(property));
+		case BEFORE:
 		case LESS_THAN:
-			return criteria.lt(parameters.nextConverted());
+			return criteria.lt(parameters.nextConverted(property));
 		case LESS_THAN_EQUAL:
-			return criteria.lte(parameters.nextConverted());
+			return criteria.lte(parameters.nextConverted(property));
 		case BETWEEN:
-			return criteria.gt(parameters.nextConverted()).lt(parameters.nextConverted());
+			return criteria.gt(parameters.nextConverted(property)).lt(parameters.nextConverted(property));
 		case IS_NOT_NULL:
 			return criteria.ne(null);
 		case IS_NULL:
 			return criteria.is(null);
 		case NOT_IN:
-			return criteria.nin(nextAsArray(parameters));
+			return criteria.nin(nextAsArray(parameters, property));
 		case IN:
-			return criteria.in(nextAsArray(parameters));
+			return criteria.in(nextAsArray(parameters, property));
 		case LIKE:
+		case STARTING_WITH:
+		case ENDING_WITH:
+		case CONTAINING:
 			String value = parameters.next().toString();
-			return criteria.regex(toLikeRegex(value));
+			return criteria.regex(toLikeRegex(value, type));
 		case REGEX:
 			return criteria.regex(parameters.next().toString());
 		case EXISTS:
@@ -203,7 +206,8 @@ class MongoQueryCreator extends AbstractQueryCreator<Query, Query> {
 		case NEAR:

 			Distance distance = accessor.getMaxDistance();
-			Point point = nextAs(parameters, Point.class);
+			Point point = accessor.getGeoNearLocation();
+			point = point == null ? nextAs(parameters, Point.class) : point;

 			if (distance == null) {
 				return criteria.near(point);
@@ -221,9 +225,9 @@ class MongoQueryCreator extends AbstractQueryCreator<Query, Query> {
 			Object parameter = parameters.next();
 			return criteria.within((Shape) parameter);
 		case SIMPLE_PROPERTY:
-			return criteria.is(parameters.nextConverted());
+			return criteria.is(parameters.nextConverted(property));
 		case NEGATING_SIMPLE_PROPERTY:
-			return criteria.not().is(parameters.nextConverted());
+			return criteria.ne(parameters.nextConverted(property));
 		}

 		throw new IllegalArgumentException("Unsupported keyword!");
@@ -249,8 +253,8 @@ class MongoQueryCreator extends AbstractQueryCreator<Query, Query> {
 				parameter.getClass()));
 	}

-	private Object[] nextAsArray(PotentiallyConvertingIterator iterator) {
-		Object next = iterator.nextConverted();
+	private Object[] nextAsArray(PotentiallyConvertingIterator iterator, MongoPersistentProperty property) {
+		Object next = iterator.nextConverted(property);

 		if (next instanceof Collection) {
 			return ((Collection<?>) next).toArray();
@@ -261,8 +265,20 @@ class MongoQueryCreator extends AbstractQueryCreator<Query, Query> {
 		return new Object[] { next };
 	}

-	private String toLikeRegex(String source) {
+	private String toLikeRegex(String source, Type type) {
+
+		switch (type) {
+		case STARTING_WITH:
+			source = source + "*";
+			break;
+		case ENDING_WITH:
+			source = "*" + source;
+			break;
+		case CONTAINING:
+			source = "*" + source + "*";
+			break;
+		}

 		return source.replaceAll("\\*", ".*");
 	}
-}
+}
--- a/Show More
+++ b/Show More