Release version 4.0 M4 (2022.0.0).

See #4005

.github/PULL_REQUEST_TEMPLATE.md

@@ -6,7 +6,6 @@ Make sure that:
 -->
 
 - [ ] You have read the [Spring Data contribution guidelines](https://github.com/spring-projects/spring-data-build/blob/master/CONTRIBUTING.adoc).
-- [ ] There is a ticket in the bug tracker for the project in our [JIRA](https://jira.spring.io/browse/DATAMONGO).
 - [ ] You use the code formatters provided [here](https://github.com/spring-projects/spring-data-build/tree/master/etc/ide) and have them applied to your changes. Don’t submit any formatting related changes.
 - [ ] You submit test cases (unit or integration tests) that back your changes.
 - [ ] You added yourself as author in the headers of the classes you touched. Amend the date range in the Apache license header if needed. For new types, add the license header (copy from another file and set the current year only).

.github/workflows/project.yml

@@ -0,0 +1,47 @@
+# GitHub Actions to automate GitHub issues for Spring Data Project Management
+
+name: Spring Data GitHub Issues
+
+on:
+  issues:
+    types: [opened, edited, reopened]
+  issue_comment:
+    types: [created]
+  pull_request_target:
+    types: [opened, edited, reopened]
+
+jobs:
+  Inbox:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'spring-projects' && (github.event.action == 'opened' || github.event.action == 'reopened') && github.event.pull_request == null
+    steps:
+      - name: Create or Update Issue Card
+        uses: peter-evans/create-or-update-project-card@v1.1.2
+        with:
+          project-name: 'Spring Data'
+          column-name: 'Inbox'
+          project-location: 'spring-projects'
+          token: ${{ secrets.GH_ISSUES_TOKEN_SPRING_DATA }}
+  Pull-Request:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'spring-projects' && (github.event.action == 'opened' || github.event.action == 'reopened') && github.event.pull_request != null
+    steps:
+      - name: Create or Update Pull Request Card
+        uses: peter-evans/create-or-update-project-card@v1.1.2
+        with:
+          project-name: 'Spring Data'
+          column-name: 'Review pending'
+          project-location: 'spring-projects'
+          issue-number: ${{ github.event.pull_request.number }}
+          token: ${{ secrets.GH_ISSUES_TOKEN_SPRING_DATA }}
+  Feedback-Provided:
+    runs-on: ubuntu-latest
+    if: github.repository_owner == 'spring-projects' && github.event_name == 'issue_comment' && github.event.action == 'created' && github.actor != 'spring-projects-issues' && github.event.pull_request == null && github.event.issue.state == 'open' && contains(toJSON(github.event.issue.labels), 'waiting-for-feedback')
+    steps:
+      - name: Update Project Card
+        uses: peter-evans/create-or-update-project-card@v1.1.2
+        with:
+          project-name: 'Spring Data'
+          column-name: 'Feedback provided'
+          project-location: 'spring-projects'
+          token: ${{ secrets.GH_ISSUES_TOKEN_SPRING_DATA }}

.mvn/wrapper/maven-wrapper.properties

@@ -1 +1,2 @@
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.5.4/apache-maven-3.5.4-bin.zip
+#Mon Oct 11 14:30:24 CEST 2021
+distributionUrl=https\://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.3/apache-maven-3.8.3-bin.zip

.travis.yml

@@ -1,40 +0,0 @@
-language: java
-
-before_install:
-  - mkdir -p downloads
-  - mkdir -p var/db var/log
-  - if [[ ! -d downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION} ]] ; then cd downloads && wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}.tgz && tar xzf mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}.tgz && cd ..; fi
-  - downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongod --version
-  - downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongod --dbpath var/db --replSet rs0 --fork --logpath var/log/mongod.log
-  - sleep 10
-  - |-
-    downloads/mongodb-linux-x86_64-ubuntu1604-${MONGO_VERSION}/bin/mongo --eval "rs.initiate({_id: 'rs0', members:[{_id: 0, host: '127.0.0.1:27017'}]});"
-    sleep 15
-
-jdk:
-  - openjdk13
-  - openjdk-ea
-
-matrix:
-  allow_failures:
-    - jdk: openjdk-ea
-
-env:
-  matrix:
-    - MONGO_VERSION=4.2.0
-    - MONGO_VERSION=4.0.14
-    - MONGO_VERSION=3.6.16
-  global:
-    - PROFILE=ci
-
-sudo: false
-
-cache:
-  directories:
-    - $HOME/.m2
-    - downloads
-
-install: true
-
-script:
-  - "./mvnw clean dependency:list test -Pjava11 -Dsort -U"

CI.adoc

@@ -1,6 +1,6 @@
 = Continuous Integration
 
-image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2Fmaster&subject=Moore%20(master)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/]
+image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2Fmain&subject=Moore%20(main)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/]
 image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2F2.1.x&subject=Lovelace%20(2.1.x)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/]
 image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2F1.10.x&subject=Ingalls%20(1.10.x)[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/]
 

CODE_OF_CONDUCT.adoc

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

CONTRIBUTING.adoc

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

Jenkinsfile

@@ -1,9 +1,15 @@
+def p = [:]
+node {
+	checkout scm
+	p = readProperties interpolate: true, file: 'ci/pipeline.properties'
+}
+
 pipeline {
 	agent none
 
 	triggers {
 		pollSCM 'H/10 * * * *'
-		upstream(upstreamProjects: "spring-data-commons/master", threshold: hudson.model.Result.SUCCESS)
+		upstream(upstreamProjects: "spring-data-commons/main", threshold: hudson.model.Result.SUCCESS)
 	}
 
 	options {
@@ -14,49 +20,39 @@ pipeline {
 	stages {
 		stage("Docker images") {
 			parallel {
-				stage('Publish JDK 8 + MongoDB 4.0') {
+				stage('Publish JDK (Java 17) + MongoDB 4.4') {
 					when {
-						changeset "ci/openjdk8-mongodb-4.0/**"
+						anyOf {
+							changeset "ci/openjdk17-mongodb-4.4/**"
+							changeset "ci/pipeline.properties"
+						}
 					}
 					agent { label 'data' }
 					options { timeout(time: 30, unit: 'MINUTES') }
 
 					steps {
 						script {
-							def image = docker.build("springci/spring-data-openjdk8-with-mongodb-4.0", "ci/openjdk8-mongodb-4.0/")
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+							def image = docker.build("springci/spring-data-with-mongodb-4.4:${p['java.main.tag']}", "--build-arg BASE=${p['docker.java.main.image']} --build-arg MONGODB=${p['docker.mongodb.4.4.version']} ci/openjdk17-mongodb-4.4/")
+							docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 								image.push()
 							}
 						}
 					}
 				}
-				stage('Publish JDK 8 + MongoDB 4.2') {
+				stage('Publish JDK (Java 17) + MongoDB 5.0') {
 					when {
-						changeset "ci/openjdk8-mongodb-4.2/**"
-					}
-					agent { label 'data' }
-					options { timeout(time: 30, unit: 'MINUTES') }
-
-					steps {
-						script {
-							def image = docker.build("springci/spring-data-openjdk8-with-mongodb-4.2.0", "ci/openjdk8-mongodb-4.2/")
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
-								image.push()
-							}
+						anyOf {
+							changeset "ci/openjdk17-mongodb-5.0/**"
+							changeset "ci/pipeline.properties"
 						}
 					}
-				}
-				stage('Publish JDK 14 + MongoDB 4.2') {
-					when {
-						changeset "ci/openjdk14-mongodb-4.2/**"
-					}
 					agent { label 'data' }
 					options { timeout(time: 30, unit: 'MINUTES') }
 
 					steps {
 						script {
-							def image = docker.build("springci/spring-data-openjdk14-with-mongodb-4.2.0", "ci/openjdk14-mongodb-4.2/")
-							docker.withRegistry('', 'hub.docker.com-springbuildmaster') {
+							def image = docker.build("springci/spring-data-with-mongodb-5.0:${p['java.main.tag']}", "--build-arg BASE=${p['docker.java.main.image']} --build-arg MONGODB=${p['docker.mongodb.5.0.version']} ci/openjdk17-mongodb-5.0/")
+							docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
 								image.push()
 							}
 						}
@@ -65,160 +61,107 @@ pipeline {
 			}
 		}
 
-		stage("test: baseline (jdk8)") {
+		stage("test: baseline (Java 17)") {
 			when {
+				beforeAgent(true)
 				anyOf {
-					branch 'master'
+					branch(pattern: "main|(\\d\\.\\d\\.x)", comparator: "REGEXP")
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
 			agent {
-				docker {
-					image 'springci/spring-data-openjdk8-with-mongodb-4.2.0:latest'
-					label 'data'
-					args '-v $HOME:/tmp/jenkins-home'
-				}
+				label 'data'
 			}
 			options { timeout(time: 30, unit: 'MINUTES') }
+			environment {
+				ARTIFACTORY = credentials("${p['artifactory.credentials']}")
+			}
 			steps {
-				sh 'rm -rf ?'
-				sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-				sh 'mongod --setParameter transactionLifetimeLimitSeconds=90 --setParameter maxTransactionLockRequestTimeoutMillis=10000 --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-				sh 'sleep 10'
-				sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-				sh 'sleep 15'
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Duser.name=jenkins -Dsort -U -B'
+				script {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
+						docker.image("harbor-repo.vmware.com/dockerhub-proxy-cache/springci/spring-data-with-mongodb-4.4:${p['java.main.tag']}").inside(p['docker.java.inside.basic']) {
+							sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
+							sh 'mongod --setParameter transactionLifetimeLimitSeconds=90 --setParameter maxTransactionLockRequestTimeoutMillis=10000 --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
+							sh 'sleep 10'
+							sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
+							sh 'sleep 15'
+							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml clean dependency:list test -Duser.name=jenkins -Dsort -U -B'
+						}
+					}
+				}
 			}
 		}
 
 		stage("Test other configurations") {
 			when {
-				anyOf {
-					branch 'master'
+				beforeAgent(true)
+				allOf {
+					branch(pattern: "main|(\\d\\.\\d\\.x)", comparator: "REGEXP")
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
 			parallel {
-				stage("test: mongodb 4.0 (jdk8)") {
-					agent {
-						docker {
-							image 'springci/spring-data-openjdk8-with-mongodb-4.0:latest'
-							label 'data'
-							args '-v $HOME:/tmp/jenkins-home'
-						}
-					}
-					options { timeout(time: 30, unit: 'MINUTES') }
-					steps {
-						sh 'rm -rf ?'
-						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-						sh 'mongod --setParameter transactionLifetimeLimitSeconds=90 --setParameter maxTransactionLockRequestTimeoutMillis=10000 --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-						sh 'sleep 10'
-						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Duser.name=jenkins -Dsort -U -B'
-					}
-				}
 
-				stage("test: mongodb 4.2 (jdk8)") {
+				stage("test: mongodb 5.0 (Java 17)") {
 					agent {
-						docker {
-							image 'springci/spring-data-openjdk8-with-mongodb-4.2.0:latest'
-							label 'data'
-							args '-v $HOME:/tmp/jenkins-home'
-						}
+						label 'data'
 					}
 					options { timeout(time: 30, unit: 'MINUTES') }
-					steps {
-						sh 'rm -rf ?'
-						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-						sh 'mongod --setParameter transactionLifetimeLimitSeconds=90 --setParameter maxTransactionLockRequestTimeoutMillis=10000 --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-						sh 'sleep 10'
-						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw clean dependency:list test -Duser.name=jenkins -Dsort -U -B'
+					environment {
+						ARTIFACTORY = credentials("${p['artifactory.credentials']}")
 					}
-				}
-
-				stage("test: baseline (jdk14)") {
-					agent {
-						docker {
-							image 'springci/spring-data-openjdk14-with-mongodb-4.2.0:latest'
-							label 'data'
-							args '-v $HOME:/tmp/jenkins-home'
+					steps {
+						script {
+							docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
+								docker.image("harbor-repo.vmware.com/dockerhub-proxy-cache/springci/spring-data-with-mongodb-5.0:${p['java.main.tag']}").inside(p['docker.java.inside.basic']) {
+									sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
+									sh 'mongod --setParameter transactionLifetimeLimitSeconds=90 --setParameter maxTransactionLockRequestTimeoutMillis=10000 --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
+									sh 'sleep 10'
+									sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
+									sh 'sleep 15'
+									sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml clean dependency:list test -Duser.name=jenkins -Dsort -U -B'
+								}
+							}
 						}
 					}
-					options { timeout(time: 30, unit: 'MINUTES') }
-					steps {
-						sh 'rm -rf ?'
-						sh 'mkdir -p /tmp/mongodb/db /tmp/mongodb/log'
-						sh 'mongod --setParameter transactionLifetimeLimitSeconds=90 --setParameter maxTransactionLockRequestTimeoutMillis=10000 --dbpath /tmp/mongodb/db --replSet rs0 --fork --logpath /tmp/mongodb/log/mongod.log &'
-						sh 'sleep 10'
-						sh 'mongo --eval "rs.initiate({_id: \'rs0\', members:[{_id: 0, host: \'127.0.0.1:27017\'}]});"'
-						sh 'sleep 15'
-						sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pjava11 clean dependency:list test -Duser.name=jenkins -Dsort -U -B'
-					}
 				}
 			}
 		}
 
 		stage('Release to artifactory') {
 			when {
+				beforeAgent(true)
 				anyOf {
-					branch 'master'
+					branch(pattern: "main|(\\d\\.\\d\\.x)", comparator: "REGEXP")
 					not { triggeredBy 'UpstreamCause' }
 				}
 			}
 			agent {
-				docker {
-					image 'adoptopenjdk/openjdk8:latest'
-					label 'data'
-					args '-v $HOME:/tmp/jenkins-home'
-				}
+				label 'data'
 			}
 			options { timeout(time: 20, unit: 'MINUTES') }
 
 			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
+				ARTIFACTORY = credentials("${p['artifactory.credentials']}")
 			}
 
 			steps {
-				sh 'rm -rf ?'
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,artifactory ' +
-						'-Dartifactory.server=https://repo.spring.io ' +
-						"-Dartifactory.username=${ARTIFACTORY_USR} " +
-						"-Dartifactory.password=${ARTIFACTORY_PSW} " +
-						"-Dartifactory.staging-repository=libs-snapshot-local " +
-						"-Dartifactory.build-name=spring-data-mongodb " +
-						"-Dartifactory.build-number=${BUILD_NUMBER} " +
-						'-Dmaven.test.skip=true clean deploy -U -B'
-			}
-		}
-
-		stage('Publish documentation') {
-			when {
-				branch 'master'
-			}
-			agent {
-				docker {
-					image 'adoptopenjdk/openjdk8:latest'
-					label 'data'
-					args '-v $HOME:/tmp/jenkins-home'
+				script {
+					docker.withRegistry(p['docker.registry'], p['docker.credentials']) {
+						docker.image(p['docker.java.main.image']).inside(p['docker.java.inside.basic']) {
+							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -v'
+							sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -s settings.xml -Pci,artifactory ' +
+									'-Dartifactory.server=https://repo.spring.io ' +
+									"-Dartifactory.username=${ARTIFACTORY_USR} " +
+									"-Dartifactory.password=${ARTIFACTORY_PSW} " +
+									"-Dartifactory.staging-repository=libs-snapshot-local " +
+									"-Dartifactory.build-name=spring-data-mongodb " +
+									"-Dartifactory.build-number=${BUILD_NUMBER} " +
+									'-Dmaven.test.skip=true clean deploy -U -B'
+						}
+					}
 				}
 			}
-			options { timeout(time: 20, unit: 'MINUTES') }
-
-			environment {
-				ARTIFACTORY = credentials('02bd1690-b54f-4c9f-819d-a77cb7a9822c')
-			}
-
-			steps {
-				sh 'MAVEN_OPTS="-Duser.name=jenkins -Duser.home=/tmp/jenkins-home" ./mvnw -Pci,distribute ' +
-						'-Dartifactory.server=https://repo.spring.io ' +
-						"-Dartifactory.username=${ARTIFACTORY_USR} " +
-						"-Dartifactory.password=${ARTIFACTORY_PSW} " +
-						"-Dartifactory.distribution-repository=temp-private-local " +
-						'-Dmaven.test.skip=true clean deploy -U -B'
-			}
 		}
 	}
 

LICENSE.txt

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        https://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
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README.adoc

@@ -1,17 +1,19 @@
-image:https://spring.io/badges/spring-data-mongodb/ga.svg[Spring Data MongoDB,link=https://projects.spring.io/spring-data-mongodb#quick-start] image:https://spring.io/badges/spring-data-mongodb/snapshot.svg[Spring Data MongoDB,link=https://projects.spring.io/spring-data-mongodb#quick-start]
+image:https://spring.io/badges/spring-data-mongodb/ga.svg[Spring Data MongoDB,link=https://spring.io/projects/spring-data-mongodb#quick-start] image:https://spring.io/badges/spring-data-mongodb/snapshot.svg[Spring Data MongoDB,link=https://spring.io/projects/spring-data-mongodb#quick-start]
 
-= Spring Data MongoDB image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2Fmaster&subject=Build[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/] https://gitter.im/spring-projects/spring-data[image:https://badges.gitter.im/spring-projects/spring-data.svg[Gitter]]
+= Spring Data MongoDB image:https://jenkins.spring.io/buildStatus/icon?job=spring-data-mongodb%2Fmain&subject=Build[link=https://jenkins.spring.io/view/SpringData/job/spring-data-mongodb/] https://gitter.im/spring-projects/spring-data[image:https://badges.gitter.im/spring-projects/spring-data.svg[Gitter]]
 
-The primary goal of the https://projects.spring.io/spring-data[Spring Data] project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud based data services.
+The primary goal of the https://spring.io/projects/spring-data[Spring Data] project is to make it easier to build Spring-powered applications that use new data access technologies such as non-relational databases, map-reduce frameworks, and cloud based data services.
 
 The Spring Data MongoDB project aims to provide a familiar and consistent Spring-based programming model for new datastores while retaining store-specific features and capabilities.
 The Spring Data MongoDB project provides integration with the MongoDB document database.
 Key functional areas of Spring Data MongoDB are a POJO centric model for interacting with a MongoDB `+Document+` and easily writing a repository style data access layer.
 
+[[code-of-conduct]]
 == Code of Conduct
 
-This project is governed by the link:CODE_OF_CONDUCT.adoc[Spring Code of Conduct]. By participating, you are expected to uphold this code of conduct. Please report unacceptable behavior to spring-code-of-conduct@pivotal.io.
+This project is governed by the https://github.com/spring-projects/.github/blob/e3cc2ff230d8f1dca06535aa6b5a4a23815861d4/CODE_OF_CONDUCT.md[Spring Code of Conduct]. By participating, you are expected to uphold this code of conduct. Please report unacceptable behavior to spring-code-of-conduct@pivotal.io.
 
+[[getting-started]]
 == Getting Started
 
 Here is a quick teaser of an application using Spring Data Repositories in Java:
@@ -52,11 +54,6 @@ public class MyService {
 @EnableMongoRepositories
 class ApplicationConfig extends AbstractMongoClientConfiguration {
 
-  @Override
-  public MongoClient mongoClient() {
-    return MongoClients.create();
-  }
-
   @Override
   protected String getDatabaseName() {
     return "springdata";
@@ -64,6 +61,7 @@ class ApplicationConfig extends AbstractMongoClientConfiguration {
 }
 ----
 
+[[maven-configuration]]
 === Maven configuration
 
 Add the Maven dependency:
@@ -73,24 +71,25 @@ Add the Maven dependency:
 <dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-mongodb</artifactId>
-  <version>${version}.RELEASE</version>
+  <version>${version}</version>
 </dependency>
 ----
 
-If you'd rather like the latest snapshots of the upcoming major version, use our Maven snapshot repository and declare the appropriate dependency version.
+If you'd rather like the latest snapshots of the upcoming major version, use our Maven snapshot repository
+and declare the appropriate dependency version.
 
 [source,xml]
 ----
 <dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-mongodb</artifactId>
-  <version>${version}.BUILD-SNAPSHOT</version>
+  <version>${version}-SNAPSHOT</version>
 </dependency>
 
 <repository>
-  <id>spring-libs-snapshot</id>
+  <id>spring-snapshot</id>
   <name>Spring Snapshot Repository</name>
-  <url>https://repo.spring.io/libs-snapshot</url>
+  <url>https://repo.spring.io/snapshot</url>
 </repository>
 ----
 
@@ -103,7 +102,7 @@ Some of the changes affect the initial setup configuration as well as compile/ru
 
 .Changed XML Namespace Elements and Attributes:
 |===
-Element / Attribute | 2.x | 3.x
+| Element / Attribute | 2.x | 3.x
 
 | `<mongo:mongo-client />`
 | Used to create a `com.mongodb.MongoClient`
@@ -121,7 +120,7 @@ Use `<mongo:client-settings cluster-hosts="..." />` instead
 
 .Removed XML Namespace Elements and Attributes:
 |===
-Element / Attribute | Replacement in 3.x | Comment
+| Element / Attribute | Replacement in 3.x | Comment
 
 | `<mongo:db-factory mongo-ref="..." />`
 | `<mongo:db-factory mongo-client-ref="..." />`
@@ -138,7 +137,7 @@ Element / Attribute | Replacement in 3.x | Comment
 
 .New XML Namespace Elements and Attributes:
 |===
-Element | Comment
+| Element | Comment
 
 | `<mongo:db-factory mongo-client-ref="..." />`
 | Replacement for `<mongo:db-factory mongo-ref="..." />`
@@ -158,7 +157,7 @@ Element | Comment
 
 .Java API changes
 |===
-Type | Comment
+| Type | Comment
 
 | `MongoClientFactoryBean`
 | Creates `com.mongodb.client.MongoClient` instead of `com.mongodb.MongoClient` +
@@ -179,7 +178,7 @@ Uses `MongoClientSettings` instead of `MongoClientOptions`.
 
 .Removed Java API:
 |===
-2.x | Replacement in 3.x | Comment
+| 2.x | Replacement in 3.x | Comment
 
 | `MongoClientOptionsFactoryBean`
 | `MongoClientSettingsFactoryBean`
@@ -231,6 +230,7 @@ static class Config extends AbstractMongoClientConfiguration {
 ----
 ====
 
+[[getting-help]]
 == Getting Help
 
 Having trouble with Spring Data? We’d love to help!
@@ -242,23 +242,99 @@ If you are just starting out with Spring, try one of the https://spring.io/guide
 * If you are upgrading, check out the https://docs.spring.io/spring-data/mongodb/docs/current/changelog.txt[changelog] for "`new and noteworthy`" features.
 * Ask a question - we monitor https://stackoverflow.com[stackoverflow.com] for questions tagged with https://stackoverflow.com/tags/spring-data[`spring-data-mongodb`].
 You can also chat with the community on https://gitter.im/spring-projects/spring-data[Gitter].
-* Report bugs with Spring Data MongoDB at https://jira.spring.io/browse/DATAMONGO[jira.spring.io/browse/DATAMONGO].
+* Report bugs with Spring Data MongoDB at https://github.com/spring-projects/spring-data-mongodb/issues[github.com/spring-projects/spring-data-mongodb/issues].
 
+[[reporting-issues]]
 == Reporting Issues
 
-Spring Data uses JIRA as issue tracking system to record bugs and feature requests. If you want to raise an issue, please follow the recommendations below:
+Spring Data uses Github as issue tracking system to record bugs and feature requests.
+If you want to raise an issue, please follow the recommendations below:
 
-* Before you log a bug, please search the
-https://jira.spring.io/browse/DATAMONGO[issue tracker] to see if someone has already reported the problem.
-* If the issue doesn’t already exist, https://jira.spring.io/browse/DATAMONGO[create a new issue].
-* Please provide as much information as possible with the issue report, we like to know the version of Spring Data that you are using and JVM version.
-* If you need to paste code, or include a stack trace use JIRA `{code}…{code}` escapes before and after your text.
-* If possible try to create a test-case or project that replicates the issue. Attach a link to your code or a compressed file containing your code.
+* Before you log a bug, please search the https://github.com/spring-projects/spring-data-mongodb/issues[issue tracker] to see if someone has already reported the problem.
+* If the issue does not already exist, https://github.com/spring-projects/spring-data-mongodb/issues/new[create a new issue].
+* Please provide as much information as possible with the issue report, we like to know the version of Spring Data that you are using, the JVM version, Stacktrace, etc.
+* If you need to paste code, or include a stack trace use https://guides.github.com/features/mastering-markdown/[Markdown] code fences +++```+++.
 
+[[guides]]
+== Guides
+
+The https://spring.io/[spring.io] site contains several guides that show how to use Spring Data step-by-step:
+
+* https://spring.io/guides/gs/accessing-data-mongodb/[Accessing Data with MongoDB] is a very basic guide that shows you how to create a simple application and how to access data using repositories.
+* https://spring.io/guides/gs/accessing-mongodb-data-rest/[Accessing MongoDB Data with REST] is a guide to creating a REST web service exposing data stored in MongoDB through repositories.
+
+[[examples]]
+== Examples
+
+* https://github.com/spring-projects/spring-data-examples/[Spring Data Examples] contains example projects that explain specific features in more detail.
+
+[[building-from-source]]
 == Building from Source
 
-You don’t need to build from source to use Spring Data (binaries in https://repo.spring.io[repo.spring.io]), but if you want to try out the latest and greatest, Spring Data can be easily built with the https://github.com/takari/maven-wrapper[maven wrapper].
-You also need JDK 1.8.
+You do not need to build from source to use Spring Data. Binaries are available in https://repo.spring.io[repo.spring.io]
+and accessible from Maven using the Maven configuration noted <<maven-configuration,above>>.
+
+NOTE: Configuration for Gradle is similar to Maven.
+
+The best way to get started is by creating a Spring Boot project using MongoDB on https://start.spring.io[start.spring.io].
+Follow this https://start.spring.io/#type=maven-project&language=java&platformVersion=2.5.4&packaging=jar&jvmVersion=1.8&groupId=com.example&artifactId=demo&name=demo&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.demo&dependencies=data-mongodb[link]
+to build an imperative application and this https://start.spring.io/#type=maven-project&language=java&platformVersion=2.5.4&packaging=jar&jvmVersion=1.8&groupId=com.example&artifactId=demo&name=demo&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.demo&dependencies=data-mongodb-reactive[link]
+to build a reactive one.
+
+However, if you want to try out the latest and greatest, Spring Data MongoDB can be easily built with the https://github.com/takari/maven-wrapper[Maven wrapper]
+and minimally, JDK 8 (https://www.oracle.com/java/technologies/downloads/[JDK downloads]).
+
+In order to build Spring Data MongoDB, you will need to https://www.mongodb.com/try/download/community[download]
+and https://docs.mongodb.com/manual/installation/[install a MongoDB distribution].
+
+Once you have installed MongoDB, you need to start a MongoDB server. It is convenient to set an environment variable to
+your MongoDB installation directory (e.g. `MONGODB_HOME`).
+
+To run the full test suite, a https://docs.mongodb.com/manual/tutorial/deploy-replica-set/[MongoDB Replica Set]
+is required.
+
+To run the MongoDB server enter the following command from a command-line:
+
+[source,bash]
+----
+$ $MONGODB_HOME/bin/mongod --dbpath $MONGODB_HOME/runtime/data --ipv6 --port 27017 --replSet rs0
+...
+"msg":"Successfully connected to host"
+----
+
+Once the MongoDB server starts up, you should see the message (`msg`), "_Successfully connected to host_".
+
+Notice the `--dbpath` option to the `mongod` command. You can set this to anything you like, but in this case, we set
+the absolute path to a sub-directory (`runtime/data/`) under the MongoDB installation directory (in `$MONGODB_HOME`).
+
+You need to initialize the MongoDB replica set only once on the first time the MongoDB server is started.
+To initialize the replica set, start a mongo client:
+
+[source,bash]
+----
+$ $MONGODB_HOME/bin/mongo
+MongoDB server version: 5.0.0
+...
+----
+
+Then enter the following command:
+
+[source,bash]
+----
+mongo> rs.initiate({ _id: 'rs0', members: [ { _id: 0, host: '127.0.0.1:27017' } ] })
+----
+
+Finally, on UNIX-based system (for example, Linux or Mac OS X) you may need to adjust the `ulimit`.
+In case you need to, you can adjust the `ulimit` with the following command (32768 is just a recommendation):
+
+[source,bash]
+----
+$ ulimit -n 32768
+----
+
+You can use `ulimit -a` again to verify the `ulimit` for "_open files_" was set appropriately.
+
+Now you are ready to build Spring Data MongoDB. Simply enter the following `mvnw` (Maven Wrapper) command:
 
 [source,bash]
 ----
@@ -267,7 +343,8 @@ You also need JDK 1.8.
 
 If you want to build with the regular `mvn` command, you will need https://maven.apache.org/run-maven/index.html[Maven v3.5.0 or above].
 
-_Also see link:CONTRIBUTING.adoc[CONTRIBUTING.adoc] if you wish to submit pull requests, and in particular please sign the https://cla.pivotal.io/sign/spring[Contributor’s Agreement] before your first non-trivial change._
+_Also see link:CONTRIBUTING.adoc[CONTRIBUTING.adoc] if you wish to submit pull requests, and in particular, please sign
+the https://cla.pivotal.io/sign/spring[Contributor’s Agreement] before your first non-trivial change._
 
 === Building reference documentation
 
@@ -280,17 +357,7 @@ Building the documentation builds also the project without running tests.
 
 The generated documentation is available from `target/site/reference/html/index.html`.
 
-== Guides
-
-The https://spring.io/[spring.io] site contains several guides that show how to use Spring Data step-by-step:
-
-* https://spring.io/guides/gs/accessing-data-mongodb/[Accessing Data with MongoDB] is a very basic guide that shows you how to create a simple application and how to access data using repositories.
-* https://spring.io/guides/gs/accessing-mongodb-data-rest/[Accessing MongoDB Data with REST] is a guide to creating a REST web service exposing data stored in MongoDB through repositories.
-
-== Examples
-
-* https://github.com/spring-projects/spring-data-examples/[Spring Data Examples] contains example projects that explain specific features in more detail.
-
+[[license]]
 == License
 
 Spring Data MongoDB is Open Source software released under the https://www.apache.org/licenses/LICENSE-2.0.html[Apache 2.0 license].

ci/openjdk11-mongodb-4.2/Dockerfile

@@ -1,15 +0,0 @@
-FROM adoptopenjdk/openjdk11:latest
-
-ENV TZ=Etc/UTC
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN set -eux; \
-	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 ; \
-	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv e162f504a20cdf15827f718d4b7c549a058f8b6b ; \
-	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.2.list; \
-	echo ${TZ} > /etc/timezone;
-
-RUN apt-get update ; \
-	apt-get install -y mongodb-org=4.2.0 mongodb-org-server=4.2.0 mongodb-org-shell=4.2.0 mongodb-org-mongos=4.2.0 mongodb-org-tools=4.2.0 ; \
-	apt-get clean; \
-	rm -rf /var/lib/apt/lists/*;

ci/openjdk14-mongodb-4.2/Dockerfile

@@ -1,15 +0,0 @@
-FROM adoptopenjdk/openjdk14:latest
-
-ENV TZ=Etc/UTC
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN set -eux; \
-	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 ; \
-	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv e162f504a20cdf15827f718d4b7c549a058f8b6b ; \
-	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.2.list; \
-	echo ${TZ} > /etc/timezone;
-
-RUN apt-get update ; \
-	apt-get install -y mongodb-org=4.2.0 mongodb-org-server=4.2.0 mongodb-org-shell=4.2.0 mongodb-org-mongos=4.2.0 mongodb-org-tools=4.2.0 ; \
-	apt-get clean; \
-	rm -rf /var/lib/apt/lists/*;

ci/openjdk17-mongodb-4.4/Dockerfile

@@ -0,0 +1,21 @@
+ARG BASE
+FROM ${BASE}
+# Any ARG statements before FROM are cleared.
+ARG MONGODB
+
+ENV TZ=Etc/UTC
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN set -eux; \
+	sed -i -e 's/archive.ubuntu.com/mirror.one.com/g' /etc/apt/sources.list; \
+	sed -i -e 's/security.ubuntu.com/mirror.one.com/g' /etc/apt/sources.list; \
+	sed -i -e 's/http/https/g' /etc/apt/sources.list ; \
+	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 ; \
+	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv 656408E390CFB1F5 ; \
+	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.4 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.4.list; \
+	echo ${TZ} > /etc/timezone;
+
+RUN apt-get update ; \
+	apt-get install -y mongodb-org=${MONGODB} mongodb-org-server=${MONGODB} mongodb-org-shell=${MONGODB} mongodb-org-mongos=${MONGODB} mongodb-org-tools=${MONGODB} ; \
+	apt-get clean; \
+	rm -rf /var/lib/apt/lists/*;

ci/openjdk17-mongodb-5.0/Dockerfile

@@ -0,0 +1,23 @@
+ARG BASE
+FROM ${BASE}
+# Any ARG statements before FROM are cleared.
+ARG MONGODB
+
+ENV TZ=Etc/UTC
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN set -eux; \
+	sed -i -e 's/archive.ubuntu.com/mirror.one.com/g' /etc/apt/sources.list; \
+	sed -i -e 's/security.ubuntu.com/mirror.one.com/g' /etc/apt/sources.list; \
+	sed -i -e 's/http/https/g' /etc/apt/sources.list ; \
+	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 wget ; \
+	# MongoDB 5.0 release signing key
+	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv B00A0BD1E2C63C11 ; \
+	# Needed when MongoDB creates a 5.0 folder.
+	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/5.0 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-5.0.list; \
+	echo ${TZ} > /etc/timezone;
+
+RUN apt-get update; \
+	apt-get install -y mongodb-org=${MONGODB} mongodb-org-server=${MONGODB} mongodb-org-shell=${MONGODB} mongodb-org-mongos=${MONGODB} mongodb-org-tools=${MONGODB} ; \
+	apt-get clean; \
+	rm -rf /var/lib/apt/lists/*;

ci/openjdk8-mongodb-4.0/Dockerfile

@@ -1,15 +0,0 @@
-FROM adoptopenjdk/openjdk8:latest
-
-ENV TZ=Etc/UTC
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN RUN set -eux; \
-	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 ; \
-	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv 9DA31620334BD75D9DCB49F368818C72E52529D4 ; \
-	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.0.list; \
-	echo ${TZ} > /etc/timezone;
-
-RUN apt-get update ; \
-	apt-get install -y mongodb-org=4.0.14 mongodb-org-server=4.0.14 mongodb-org-shell=4.0.14 mongodb-org-mongos=4.0.14 mongodb-org-tools=4.0.14 ; \
-	apt-get clean; \
-	rm -rf /var/lib/apt/lists/*;

ci/openjdk8-mongodb-4.2/Dockerfile

@@ -1,15 +0,0 @@
-FROM adoptopenjdk/openjdk8:latest
-
-ENV TZ=Etc/UTC
-ENV DEBIAN_FRONTEND=noninteractive
-
-RUN set -eux; \
-	apt-get update && apt-get install -y apt-transport-https apt-utils gnupg2 ; \
-	apt-key adv --keyserver hkps://keyserver.ubuntu.com:443 --recv e162f504a20cdf15827f718d4b7c549a058f8b6b ; \
-	echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.2 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.2.list; \
-	echo ${TZ} > /etc/timezone;
-
-RUN apt-get update ; \
-	apt-get install -y mongodb-org=4.2.0 mongodb-org-server=4.2.0 mongodb-org-shell=4.2.0 mongodb-org-mongos=4.2.0 mongodb-org-tools=4.2.0 ; \
-	apt-get clean; \
-	rm -rf /var/lib/apt/lists/*;

ci/pipeline.properties

@@ -0,0 +1,24 @@
+# Java versions
+java.main.tag=17.0.2_8-jdk
+
+# Docker container images - standard
+docker.java.main.image=harbor-repo.vmware.com/dockerhub-proxy-cache/library/eclipse-temurin:${java.main.tag}
+
+# Supported versions of MongoDB
+docker.mongodb.4.4.version=4.4.12
+docker.mongodb.5.0.version=5.0.6
+
+# Supported versions of Redis
+docker.redis.6.version=6.2.6
+
+# Supported versions of Cassandra
+docker.cassandra.3.version=3.11.12
+
+# Docker environment settings
+docker.java.inside.basic=-v $HOME:/tmp/jenkins-home
+docker.java.inside.docker=-u root -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker -v $HOME:/tmp/jenkins-home
+
+# Credentials
+docker.registry=
+docker.credentials=hub.docker.com-springbuildmaster
+artifactory.credentials=02bd1690-b54f-4c9f-819d-a77cb7a9822c

pom.xml

@@ -1,164 +1,326 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
-
-	<modelVersion>4.0.0</modelVersion>
-
-	<groupId>org.springframework.data</groupId>
-	<artifactId>spring-data-mongodb-parent</artifactId>
-	<version>3.0.0.BUILD-SNAPSHOT</version>
-	<packaging>pom</packaging>
-
-	<name>Spring Data MongoDB</name>
-	<description>MongoDB support for Spring Data</description>
-	<url>https://projects.spring.io/spring-data-mongodb</url>
-
-	<parent>
-		<groupId>org.springframework.data.build</groupId>
-		<artifactId>spring-data-parent</artifactId>
-		<version>2.3.0.BUILD-SNAPSHOT</version>
-	</parent>
-
-	<modules>
-		<module>spring-data-mongodb</module>
-		<module>spring-data-mongodb-distribution</module>
-	</modules>
-
-	<properties>
-		<project.type>multi</project.type>
-		<dist.id>spring-data-mongodb</dist.id>
-		<springdata.commons>2.3.0.BUILD-SNAPSHOT</springdata.commons>
-		<mongo>4.0.2</mongo>
-		<mongo.reactivestreams>${mongo}</mongo.reactivestreams>
-		<jmh.version>1.19</jmh.version>
-	</properties>
-
-	<developers>
-		<developer>
-			<id>ogierke</id>
-			<name>Oliver Gierke</name>
-			<email>ogierke at gopivotal.com</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://pivotal.io</organizationUrl>
-			<roles>
-				<role>Project Lead</role>
-			</roles>
-			<timezone>+1</timezone>
-		</developer>
-		<developer>
-			<id>trisberg</id>
-			<name>Thomas Risberg</name>
-			<email>trisberg at vmware.com</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>-5</timezone>
-		</developer>
-		<developer>
-			<id>mpollack</id>
-			<name>Mark Pollack</name>
-			<email>mpollack at gopivotal.com</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>-5</timezone>
-		</developer>
-		<developer>
-			<id>jbrisbin</id>
-			<name>Jon Brisbin</name>
-			<email>jbrisbin at gopivotal.com</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>-6</timezone>
-		</developer>
-		<developer>
-			<id>tdarimont</id>
-			<name>Thomas Darimont</name>
-			<email>tdarimont at gopivotal.com</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>+1</timezone>
-		</developer>
-		<developer>
-			<id>cstrobl</id>
-			<name>Christoph Strobl</name>
-			<email>cstrobl at gopivotal.com</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>+1</timezone>
-		</developer>
-		<developer>
-			<id>mpaluch</id>
-			<name>Mark Paluch</name>
-			<email>mpaluch at pivotal.io</email>
-			<organization>Pivotal</organization>
-			<organizationUrl>https://www.pivotal.io</organizationUrl>
-			<roles>
-				<role>Developer</role>
-			</roles>
-			<timezone>+1</timezone>
-		</developer>
-	</developers>
-
-	<profiles>
-		<profile>
-			<id>benchmarks</id>
-			<modules>
-				<module>spring-data-mongodb</module>
-				<module>spring-data-mongodb-distribution</module>
-				<module>spring-data-mongodb-benchmarks</module>
-			</modules>
-		</profile>
-	</profiles>
-
-	<dependencies>
-		<!-- MongoDB -->
-		<dependency>
-			<groupId>org.mongodb</groupId>
-			<artifactId>mongodb-driver-core</artifactId>
-			<version>${mongo}</version>
-		</dependency>
-	</dependencies>
-
-	<repositories>
-		<repository>
-			<id>spring-libs-snapshot</id>
-			<url>https://repo.spring.io/libs-snapshot</url>
-		</repository>
-		<repository>
-			<id>sonatype-libs-snapshot</id>
-			<url>https://oss.sonatype.org/content/repositories/snapshots</url>
-			<releases>
-        <enabled>false</enabled>
-      </releases>
-			<snapshots>
+  	
+  <modelVersion>4.0.0</modelVersion>
+  	
+  <groupId>org.springframework.data</groupId>
+  	
+  <artifactId>spring-data-mongodb-parent</artifactId>
+  	
+  <version>4.0.0-M4</version>
+  	
+  <packaging>pom</packaging>
+  	
+  <name>Spring Data MongoDB</name>
+  	
+  <description>MongoDB support for Spring Data</description>
+  	
+  <url>https://spring.io/projects/spring-data-mongodb</url>
+  	
+  <parent>
+    		
+    <groupId>org.springframework.data.build</groupId>
+    		
+    <artifactId>spring-data-parent</artifactId>
+    		
+    <version>3.0.0-M4</version>
+    	
+  </parent>
+  	
+  <modules>
+    		
+    <module>spring-data-mongodb</module>
+    		
+    <module>spring-data-mongodb-distribution</module>
+    	
+  </modules>
+  	
+  <properties>
+    		
+    <source.level>16</source.level>
+    		
+    <project.type>multi</project.type>
+    		
+    <dist.id>spring-data-mongodb</dist.id>
+    		
+    <springdata.commons>3.0.0-M4</springdata.commons>
+    		
+    <mongo>4.6.0</mongo>
+    		
+    <mongo.reactivestreams>${mongo}</mongo.reactivestreams>
+    		
+    <jmh.version>1.19</jmh.version>
+    	
+  </properties>
+  	
+  <developers>
+    		
+    <developer>
+      			
+      <id>ogierke</id>
+      			
+      <name>Oliver Gierke</name>
+      			
+      <email>ogierke at gopivotal.com</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Project Lead</role>
+        			
+      </roles>
+      			
+      <timezone>+1</timezone>
+      		
+    </developer>
+    		
+    <developer>
+      			
+      <id>trisberg</id>
+      			
+      <name>Thomas Risberg</name>
+      			
+      <email>trisberg at vmware.com</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Developer</role>
+        			
+      </roles>
+      			
+      <timezone>-5</timezone>
+      		
+    </developer>
+    		
+    <developer>
+      			
+      <id>mpollack</id>
+      			
+      <name>Mark Pollack</name>
+      			
+      <email>mpollack at gopivotal.com</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Developer</role>
+        			
+      </roles>
+      			
+      <timezone>-5</timezone>
+      		
+    </developer>
+    		
+    <developer>
+      			
+      <id>jbrisbin</id>
+      			
+      <name>Jon Brisbin</name>
+      			
+      <email>jbrisbin at gopivotal.com</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Developer</role>
+        			
+      </roles>
+      			
+      <timezone>-6</timezone>
+      		
+    </developer>
+    		
+    <developer>
+      			
+      <id>tdarimont</id>
+      			
+      <name>Thomas Darimont</name>
+      			
+      <email>tdarimont at gopivotal.com</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Developer</role>
+        			
+      </roles>
+      			
+      <timezone>+1</timezone>
+      		
+    </developer>
+    		
+    <developer>
+      			
+      <id>cstrobl</id>
+      			
+      <name>Christoph Strobl</name>
+      			
+      <email>cstrobl at gopivotal.com</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Developer</role>
+        			
+      </roles>
+      			
+      <timezone>+1</timezone>
+      		
+    </developer>
+    		
+    <developer>
+      			
+      <id>mpaluch</id>
+      			
+      <name>Mark Paluch</name>
+      			
+      <email>mpaluch at pivotal.io</email>
+      			
+      <organization>Pivotal</organization>
+      			
+      <organizationUrl>https://www.pivotal.io</organizationUrl>
+      			
+      <roles>
+        				
+        <role>Developer</role>
+        			
+      </roles>
+      			
+      <timezone>+1</timezone>
+      		
+    </developer>
+    	
+  </developers>
+  	
+  <scm>
+    		
+    <connection>scm:git:https://github.com/spring-projects/spring-data-mongodb.git</connection>
+    		
+    <developerConnection>scm:git:git@github.com:spring-projects/spring-data-mongodb.git</developerConnection>
+    		
+    <url>https://github.com/spring-projects/spring-data-mongodb</url>
+    	
+  </scm>
+  	
+  <issueManagement>
+    		
+    <system>GitHub</system>
+    		
+    <url>https://github.com/spring-projects/spring-data-mongodb/issues</url>
+    	
+  </issueManagement>
+  	
+  <profiles>
+    		
+    <profile>
+      			
+      <id>benchmarks</id>
+      			
+      <modules>
+        				
+        <module>spring-data-mongodb</module>
+        				
+        <module>spring-data-mongodb-distribution</module>
+        				
+        <module>spring-data-mongodb-benchmarks</module>
+        			
+      </modules>
+      		
+    </profile>
+    	
+  </profiles>
+  	
+  <dependencies>
+    		
+    <!-- MongoDB -->
+    		
+    <dependency>
+      			
+      <groupId>org.mongodb</groupId>
+      			
+      <artifactId>mongodb-driver-core</artifactId>
+      			
+      <version>${mongo}</version>
+      		
+    </dependency>
+    	
+  </dependencies>
+  	
+  <repositories>
+    		
+    <repository>
+      			
+      <id>spring-libs-milestone</id>
+      			
+      <url>https://repo.spring.io/libs-milestone</url>
+      			
+      <snapshots>
+        				
         <enabled>true</enabled>
+        			
       </snapshots>
-		</repository>
-	</repositories>
-
-	<pluginRepositories>
-		<pluginRepository>
-			<id>spring-plugins-release</id>
-			<url>https://repo.spring.io/plugins-release</url>
-		</pluginRepository>
-		<pluginRepository>
-			<id>spring-libs-milestone</id>
-			<url>https://repo.spring.io/libs-milestone</url>
-		</pluginRepository>
-
-	</pluginRepositories>
-
+      		
+    </repository>
+    		
+    <repository>
+      			
+      <id>sonatype-libs-snapshot</id>
+      			
+      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+      			
+      <releases>
+        				
+        <enabled>false</enabled>
+        			
+      </releases>
+      			
+      <snapshots>
+        				
+        <enabled>true</enabled>
+        			
+      </snapshots>
+      		
+    </repository>
+    	
+  </repositories>
+  	
+  <pluginRepositories>
+    		
+    <pluginRepository>
+      			
+      <id>spring-plugins-release</id>
+      			
+      <url>https://repo.spring.io/plugins-release</url>
+      		
+    </pluginRepository>
+    		
+    <pluginRepository>
+      			
+      <id>spring-libs-milestone</id>
+      			
+      <url>https://repo.spring.io/libs-milestone</url>
+      		
+    </pluginRepository>
+    	
+  </pluginRepositories>
+  
 </project>

settings.xml

@@ -0,0 +1,29 @@
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
+                      https://maven.apache.org/xsd/settings-1.0.0.xsd">
+
+	<servers>
+		<server>
+			<id>spring-plugins-release</id>
+			<username>${env.ARTIFACTORY_USR}</username>
+			<password>${env.ARTIFACTORY_PSW}</password>
+		</server>
+		<server>
+			<id>spring-libs-snapshot</id>
+			<username>${env.ARTIFACTORY_USR}</username>
+			<password>${env.ARTIFACTORY_PSW}</password>
+		</server>
+		<server>
+			<id>spring-libs-milestone</id>
+			<username>${env.ARTIFACTORY_USR}</username>
+			<password>${env.ARTIFACTORY_PSW}</password>
+		</server>
+		<server>
+			<id>spring-libs-release</id>
+			<username>${env.ARTIFACTORY_USR}</username>
+			<password>${env.ARTIFACTORY_PSW}</password>
+		</server>
+	</servers>
+
+</settings>

spring-data-mongodb-benchmarks/pom.xml

@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>3.0.0.BUILD-SNAPSHOT</version>
+		<version>4.0.0-M4</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/AbstractMicrobenchmark.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/HttpResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/MongoResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

spring-data-mongodb-benchmarks/src/main/java/org/springframework/data/mongodb/microbenchmark/ResultsWriter.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

spring-data-mongodb-distribution/pom.xml

@@ -1,6 +1,7 @@
 <?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 https://maven.apache.org/xsd/maven-4.0.0.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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 
@@ -14,13 +15,18 @@
 	<parent>
 		<groupId>org.springframework.data</groupId>
 		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>3.0.0.BUILD-SNAPSHOT</version>
+		<version>4.0.0-M4</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
 	<properties>
 		<project.root>${basedir}/..</project.root>
 		<dist.key>SDMONGO</dist.key>
+
+		<!-- Observability -->
+		<micrometer-docs-generator.inputPath>${maven.multiModuleProjectDirectory}/spring-data-mongodb/</micrometer-docs-generator.inputPath>
+		<micrometer-docs-generator.inclusionPattern>.*</micrometer-docs-generator.inclusionPattern>
+		<micrometer-docs-generator.outputPath>${maven.multiModuleProjectDirectory}/target/</micrometer-docs-generator.outputPath>
 	</properties>
 
 	<build>
@@ -29,12 +35,63 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-assembly-plugin</artifactId>
 			</plugin>
+			<plugin>
+				<groupId>org.codehaus.mojo</groupId>
+				<artifactId>exec-maven-plugin</artifactId>
+				<executions>
+					<execution>
+						<id>generate-metrics-metadata</id>
+						<phase>prepare-package</phase>
+						<goals>
+							<goal>java</goal>
+						</goals>
+						<configuration>
+							<mainClass>io.micrometer.docs.metrics.DocsFromSources
+							</mainClass>
+						</configuration>
+					</execution>
+					<execution>
+						<id>generate-tracing-metadata</id>
+						<phase>prepare-package</phase>
+						<goals>
+							<goal>java</goal>
+						</goals>
+						<configuration>
+							<mainClass>io.micrometer.docs.spans.DocsFromSources
+							</mainClass>
+						</configuration>
+					</execution>
+				</executions>
+				<dependencies>
+					<dependency>
+						<groupId>io.micrometer</groupId>
+						<artifactId>micrometer-docs-generator-spans</artifactId>
+						<version>${micrometer-docs-generator}</version>
+						<type>jar</type>
+					</dependency>
+					<dependency>
+						<groupId>io.micrometer</groupId>
+						<artifactId>micrometer-docs-generator-metrics</artifactId>
+						<version>${micrometer-docs-generator}</version>
+						<type>jar</type>
+					</dependency>
+				</dependencies>
+				<configuration>
+					<includePluginDependencies>true</includePluginDependencies>
+					<arguments>
+						<argument>${micrometer-docs-generator.inputPath}</argument>
+						<argument>${micrometer-docs-generator.inclusionPattern}</argument>
+						<argument>${micrometer-docs-generator.outputPath}</argument>
+					</arguments>
+				</configuration>
+			</plugin>
 			<plugin>
 				<groupId>org.asciidoctor</groupId>
 				<artifactId>asciidoctor-maven-plugin</artifactId>
 				<configuration>
 					<attributes>
-						<mongo-reactivestreams>${mongo.reactivestreams}</mongo-reactivestreams>
+						<mongo-reactivestreams>${mongo.reactivestreams}
+						</mongo-reactivestreams>
 						<reactor>${reactor}</reactor>
 					</attributes>
 				</configuration>

spring-data-mongodb/pom.xml

@@ -1,353 +1,391 @@
 <?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 https://maven.apache.org/xsd/maven-4.0.0.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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 
-	<modelVersion>4.0.0</modelVersion>
+  <modelVersion>4.0.0</modelVersion>
 
-	<artifactId>spring-data-mongodb</artifactId>
+  <artifactId>spring-data-mongodb</artifactId>
 
-	<name>Spring Data MongoDB - Core</name>
-	<description>MongoDB support for Spring Data</description>
+  <name>Spring Data MongoDB - Core</name>
+  <description>MongoDB support for Spring Data</description>
 
-	<parent>
-		<groupId>org.springframework.data</groupId>
-		<artifactId>spring-data-mongodb-parent</artifactId>
-		<version>3.0.0.BUILD-SNAPSHOT</version>
-		<relativePath>../pom.xml</relativePath>
-	</parent>
+  <parent>
+    <groupId>org.springframework.data</groupId>
+    <artifactId>spring-data-mongodb-parent</artifactId>
+    <version>4.0.0-M4</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
 
-	<properties>
-		<objenesis>1.3</objenesis>
-		<equalsverifier>1.7.8</equalsverifier>
-		<java-module-name>spring.data.mongodb</java-module-name>
-		<project.root>${basedir}/..</project.root>
-		<multithreadedtc>1.01</multithreadedtc>
-	</properties>
+  <properties>
+    <objenesis>1.3</objenesis>
+    <equalsverifier>1.7.8</equalsverifier>
+    <java-module-name>spring.data.mongodb</java-module-name>
+    <project.root>${basedir}/..</project.root>
+    <multithreadedtc>1.01</multithreadedtc>
+  </properties>
 
-	<dependencies>
+  <dependencies>
 
-		<!-- Spring -->
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-tx</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-context</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-beans</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-core</artifactId>
-			<exclusions>
-				<exclusion>
-					<groupId>commons-logging</groupId>
-					<artifactId>commons-logging</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-expression</artifactId>
-		</dependency>
+    <!-- Spring -->
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-tx</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-context</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-beans</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-core</artifactId>
+      <exclusions>
+        <exclusion>
+          <groupId>commons-logging</groupId>
+          <artifactId>commons-logging</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-expression</artifactId>
+    </dependency>
 
-		<!-- Spring Data -->
-		<dependency>
-			<groupId>${project.groupId}</groupId>
-			<artifactId>spring-data-commons</artifactId>
-			<version>${springdata.commons}</version>
-		</dependency>
+    <!-- Spring Data -->
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>spring-data-commons</artifactId>
+      <version>${springdata.commons}</version>
+    </dependency>
 
-		<dependency>
-			<groupId>com.querydsl</groupId>
-			<artifactId>querydsl-mongodb</artifactId>
-			<version>${querydsl}</version>
-			<optional>true</optional>
-			<exclusions>
-				<exclusion>
-					<groupId>org.mongodb</groupId>
-					<artifactId>mongo-java-driver</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
+    <dependency>
+      <groupId>com.querydsl</groupId>
+      <artifactId>querydsl-mongodb</artifactId>
+      <version>${querydsl}</version>
+      <optional>true</optional>
+      <exclusions>
+        <exclusion>
+          <groupId>org.mongodb</groupId>
+          <artifactId>mongo-java-driver</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
 
-		<dependency>
-			<groupId>com.querydsl</groupId>
-			<artifactId>querydsl-apt</artifactId>
-			<version>${querydsl}</version>
-			<scope>provided</scope>
-		</dependency>
+    <dependency>
+      <groupId>com.querydsl</groupId>
+      <artifactId>querydsl-apt</artifactId>
+      <version>${querydsl}</version>
+      <scope>provided</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>javax.annotation</groupId>
-			<artifactId>jsr250-api</artifactId>
-			<version>1.0</version>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>javax.annotation</groupId>
+      <artifactId>jsr250-api</artifactId>
+      <version>1.0</version>
+      <optional>true</optional>
+    </dependency>
 
-		<!-- reactive -->
+    <dependency>
+      <groupId>com.google.code.findbugs</groupId>
+      <artifactId>jsr305</artifactId>
+      <version>3.0.2</version>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>org.mongodb</groupId>
-			<artifactId>mongodb-driver-sync</artifactId>
-			<version>${mongo}</version>
-			<optional>true</optional>
-		</dependency>
+    <!-- reactive -->
 
-		<dependency>
-			<groupId>org.mongodb</groupId>
-			<artifactId>mongodb-driver-reactivestreams</artifactId>
-			<version>${mongo.reactivestreams}</version>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>org.mongodb</groupId>
+      <artifactId>mongodb-driver-sync</artifactId>
+      <version>${mongo}</version>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-core</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>org.mongodb</groupId>
+      <artifactId>mongodb-driver-reactivestreams</artifactId>
+      <version>${mongo.reactivestreams}</version>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>io.projectreactor</groupId>
-			<artifactId>reactor-test</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>io.projectreactor</groupId>
+      <artifactId>reactor-core</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>io.reactivex</groupId>
-			<artifactId>rxjava</artifactId>
-			<version>${rxjava}</version>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>io.projectreactor</groupId>
+      <artifactId>reactor-test</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>io.reactivex</groupId>
-			<artifactId>rxjava-reactive-streams</artifactId>
-			<version>${rxjava-reactive-streams}</version>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>io.reactivex.rxjava3</groupId>
+      <artifactId>rxjava</artifactId>
+      <version>${rxjava3}</version>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>io.reactivex.rxjava2</groupId>
-			<artifactId>rxjava</artifactId>
-			<version>${rxjava2}</version>
-			<optional>true</optional>
-		</dependency>
+    <!-- CDI -->
+    <!-- Dependency order required to build against CDI 1.0 and test with CDI 2.0 -->
 
-		<!-- CDI -->
-		<!-- Dependency order required to build against CDI 1.0 and test with CDI 2.0 -->
-		<dependency>
-			<groupId>org.apache.geronimo.specs</groupId>
-			<artifactId>geronimo-jcdi_2.0_spec</artifactId>
-			<version>1.0.1</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>javax.interceptor</groupId>
+      <artifactId>javax.interceptor-api</artifactId>
+      <version>1.2.1</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>javax.interceptor</groupId>
-			<artifactId>javax.interceptor-api</artifactId>
-			<version>1.2.1</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>jakarta.enterprise</groupId>
+      <artifactId>jakarta.enterprise.cdi-api</artifactId>
+      <version>${cdi}</version>
+      <scope>provided</scope>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>javax.enterprise</groupId>
-			<artifactId>cdi-api</artifactId>
-			<version>${cdi}</version>
-			<scope>provided</scope>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>jakarta.annotation</groupId>
+      <artifactId>jakarta.annotation-api</artifactId>
+      <version>${jakarta-annotation-api}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>javax.annotation</groupId>
-			<artifactId>javax.annotation-api</artifactId>
-			<version>${javax-annotation-api}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.apache.openwebbeans</groupId>
+      <artifactId>openwebbeans-se</artifactId>
+      <classifier>jakarta</classifier>
+      <version>${webbeans}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>org.apache.openwebbeans</groupId>
-			<artifactId>openwebbeans-se</artifactId>
-			<version>${webbeans}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.apache.openwebbeans</groupId>
+      <artifactId>openwebbeans-spi</artifactId>
+      <classifier>jakarta</classifier>
+      <version>${webbeans}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<!-- JSR 303 Validation -->
-		<dependency>
-			<groupId>javax.validation</groupId>
-			<artifactId>validation-api</artifactId>
-			<version>${validation}</version>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>org.apache.openwebbeans</groupId>
+      <artifactId>openwebbeans-impl</artifactId>
+      <classifier>jakarta</classifier>
+      <version>${webbeans}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>org.objenesis</groupId>
-			<artifactId>objenesis</artifactId>
-			<version>${objenesis}</version>
-			<optional>true</optional>
-		</dependency>
+    <!-- JSR 303 Validation -->
+    <dependency>
+      <groupId>jakarta.validation</groupId>
+      <artifactId>jakarta.validation-api</artifactId>
+      <version>${validation}</version>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>org.hibernate</groupId>
-			<artifactId>hibernate-validator</artifactId>
-			<version>5.2.4.Final</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.objenesis</groupId>
+      <artifactId>objenesis</artifactId>
+      <version>${objenesis}</version>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>joda-time</groupId>
-			<artifactId>joda-time</artifactId>
-			<version>${jodatime}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-observation</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>org.threeten</groupId>
-			<artifactId>threetenbp</artifactId>
-			<version>${threetenbp}</version>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-tracing-api</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>com.fasterxml.jackson.core</groupId>
-			<artifactId>jackson-databind</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>org.hibernate.validator</groupId>
+      <artifactId>hibernate-validator</artifactId>
+      <version>7.0.1.Final</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>jul-to-slf4j</artifactId>
-			<version>${slf4j}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>jakarta.el</groupId>
+      <artifactId>jakarta.el-api</artifactId>
+      <version>4.0.0</version>
+      <scope>provided</scope>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>nl.jqno.equalsverifier</groupId>
-			<artifactId>equalsverifier</artifactId>
-			<version>${equalsverifier}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.glassfish</groupId>
+      <artifactId>jakarta.el</artifactId>
+      <version>4.0.2</version>
+      <scope>provided</scope>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>org.springframework</groupId>
-			<artifactId>spring-webmvc</artifactId>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>com.fasterxml.jackson.core</groupId>
+      <artifactId>jackson-databind</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>de.schauderhaft.degraph</groupId>
-			<artifactId>degraph-check</artifactId>
-			<version>0.1.4</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>nl.jqno.equalsverifier</groupId>
+      <artifactId>equalsverifier</artifactId>
+      <version>${equalsverifier}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>edu.umd.cs.mtc</groupId>
-			<artifactId>multithreadedtc</artifactId>
-			<version>${multithreadedtc}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.springframework</groupId>
+      <artifactId>spring-webmvc</artifactId>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>org.junit-pioneer</groupId>
-			<artifactId>junit-pioneer</artifactId>
-			<version>0.5.3</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>de.schauderhaft.degraph</groupId>
+      <artifactId>degraph-check</artifactId>
+      <version>0.1.4</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>javax.transaction</groupId>
-			<artifactId>jta</artifactId>
-			<version>1.1</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>edu.umd.cs.mtc</groupId>
+      <artifactId>multithreadedtc</artifactId>
+      <version>${multithreadedtc}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<!-- Kotlin extension -->
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-stdlib</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>org.junit-pioneer</groupId>
+      <artifactId>junit-pioneer</artifactId>
+      <version>0.5.3</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>org.jetbrains.kotlin</groupId>
-			<artifactId>kotlin-reflect</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>jakarta.transaction</groupId>
+      <artifactId>jakarta.transaction-api</artifactId>
+      <version>2.0.0</version>
+      <scope>test</scope>
+    </dependency>
 
-		<dependency>
-			<groupId>org.jetbrains.kotlinx</groupId>
-			<artifactId>kotlinx-coroutines-core</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <!-- Kotlin extension -->
+    <dependency>
+      <groupId>org.jetbrains.kotlin</groupId>
+      <artifactId>kotlin-stdlib</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>org.jetbrains.kotlinx</groupId>
-			<artifactId>kotlinx-coroutines-reactor</artifactId>
-			<optional>true</optional>
-		</dependency>
+    <dependency>
+      <groupId>org.jetbrains.kotlin</groupId>
+      <artifactId>kotlin-reflect</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-		<dependency>
-			<groupId>io.mockk</groupId>
-			<artifactId>mockk</artifactId>
-			<version>${mockk}</version>
-			<scope>test</scope>
-		</dependency>
+    <dependency>
+      <groupId>org.jetbrains.kotlinx</groupId>
+      <artifactId>kotlinx-coroutines-core</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-	</dependencies>
+    <dependency>
+      <groupId>org.jetbrains.kotlinx</groupId>
+      <artifactId>kotlinx-coroutines-reactor</artifactId>
+      <optional>true</optional>
+    </dependency>
 
-	<build>
+    <dependency>
+      <groupId>io.mockk</groupId>
+      <artifactId>mockk</artifactId>
+      <version>${mockk}</version>
+      <scope>test</scope>
+    </dependency>
 
-		<plugins>
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-test</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-tracing-test</artifactId>
+      <scope>test</scope>
+    </dependency>
 
-			<plugin>
-				<groupId>com.mysema.maven</groupId>
-				<artifactId>apt-maven-plugin</artifactId>
-				<version>${apt}</version>
-				<dependencies>
-					<dependency>
-						<groupId>com.querydsl</groupId>
-						<artifactId>querydsl-apt</artifactId>
-						<version>${querydsl}</version>
-					</dependency>
-				</dependencies>
-				<executions>
-					<execution>
-						<phase>generate-test-sources</phase>
-						<goals>
-							<goal>test-process</goal>
-						</goals>
-						<configuration>
-							<outputDirectory>target/generated-test-sources</outputDirectory>
-							<processor>org.springframework.data.mongodb.repository.support.MongoAnnotationProcessor</processor>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
+    <dependency>
+      <groupId>io.micrometer</groupId>
+      <artifactId>micrometer-tracing-integration-test</artifactId>
+      <scope>test</scope>
+    </dependency>
 
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<configuration>
-					<useSystemClassLoader>false</useSystemClassLoader>
-					<useFile>false</useFile>
-					<includes>
-						<include>**/*Tests.java</include>
-					</includes>
-					<excludes>
-						<exclude>**/PerformanceTests.java</exclude>
-						<exclude>**/ReactivePerformanceTests.java</exclude>
-					</excludes>
-					<systemPropertyVariables>
-						<java.util.logging.config.file>src/test/resources/logging.properties</java.util.logging.config.file>
-						<reactor.trace.cancel>true</reactor.trace.cancel>
-					</systemPropertyVariables>
-				</configuration>
-			</plugin>
+    <!-- jMolecules -->
 
-		</plugins>
+    <dependency>
+      <groupId>org.jmolecules</groupId>
+      <artifactId>jmolecules-ddd</artifactId>
+      <version>${jmolecules}</version>
+      <scope>test</scope>
+    </dependency>
 
-	</build>
+  </dependencies>
+
+  <build>
+
+    <plugins>
+
+      <plugin>
+        <groupId>com.mysema.maven</groupId>
+        <artifactId>apt-maven-plugin</artifactId>
+        <version>${apt}</version>
+        <dependencies>
+          <dependency>
+            <groupId>com.querydsl</groupId>
+            <artifactId>querydsl-apt</artifactId>
+            <version>${querydsl}</version>
+          </dependency>
+        </dependencies>
+        <executions>
+          <execution>
+            <phase>generate-test-sources</phase>
+            <goals>
+              <goal>test-process</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>target/generated-test-sources</outputDirectory>
+              <processor>org.springframework.data.mongodb.repository.support.MongoAnnotationProcessor</processor>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <configuration>
+          <useSystemClassLoader>false</useSystemClassLoader>
+          <useFile>false</useFile>
+          <includes>
+            <include>**/*Tests.java</include>
+          </includes>
+          <excludes>
+            <exclude>**/PerformanceTests.java</exclude>
+            <exclude>**/ReactivePerformanceTests.java</exclude>
+          </excludes>
+          <systemPropertyVariables>
+            <java.util.logging.config.file>src/test/resources/logging.properties</java.util.logging.config.file>
+            <reactor.trace.cancel>true</reactor.trace.cancel>
+          </systemPropertyVariables>
+        </configuration>
+      </plugin>
+
+    </plugins>
+
+  </build>
 </project>

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

@@ -0,0 +1,144 @@
+/*
+ * Copyright 2021-2022 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
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb;
+
+import java.util.Arrays;
+
+import org.bson.Document;
+import org.bson.codecs.DocumentCodec;
+import org.bson.codecs.configuration.CodecRegistry;
+import org.springframework.data.mongodb.util.json.ParameterBindingDocumentCodec;
+import org.springframework.data.util.Lazy;
+import org.springframework.lang.Nullable;
+import org.springframework.util.ObjectUtils;
+import org.springframework.util.StringUtils;
+
+/**
+ * A {@link MongoExpression} using the {@link ParameterBindingDocumentCodec} for parsing a raw ({@literal json})
+ * expression. The expression will be wrapped within <code>{ ... }</code> if necessary. The actual parsing and parameter
+ * binding of placeholders like {@code ?0} is delayed upon first call on the the target {@link Document} via
+ * {@link #toDocument()}.
+ * <br />
+ *
+ * <pre class="code">
+ * $toUpper : $name                -> { '$toUpper' : '$name' }
+ *
+ * { '$toUpper' : '$name' }        -> { '$toUpper' : '$name' }
+ *
+ * { '$toUpper' : '?0' }, "$name"  -> { '$toUpper' : '$name' }
+ * </pre>
+ *
+ * Some types might require a special {@link org.bson.codecs.Codec}. If so, make sure to provide a {@link CodecRegistry}
+ * containing the required {@link org.bson.codecs.Codec codec} via {@link #withCodecRegistry(CodecRegistry)}.
+ *
+ * @author Christoph Strobl
+ * @since 3.2
+ */
+public class BindableMongoExpression implements MongoExpression {
+
+	private final String expressionString;
+
+	private final @Nullable CodecRegistryProvider codecRegistryProvider;
+
+	private final @Nullable Object[] args;
+
+	private final Lazy<Document> target;
+
+	/**
+	 * Create a new instance of {@link BindableMongoExpression}.
+	 *
+	 * @param expression must not be {@literal null}.
+	 * @param args can be {@literal null}.
+	 */
+	public BindableMongoExpression(String expression, @Nullable Object[] args) {
+		this(expression, null, args);
+	}
+
+	/**
+	 * Create a new instance of {@link BindableMongoExpression}.
+	 *
+	 * @param expression must not be {@literal null}.
+	 * @param codecRegistryProvider can be {@literal null}.
+	 * @param args can be {@literal null}.
+	 */
+	public BindableMongoExpression(String expression, @Nullable CodecRegistryProvider codecRegistryProvider,
+			@Nullable Object[] args) {
+
+		this.expressionString = expression;
+		this.codecRegistryProvider = codecRegistryProvider;
+		this.args = args;
+		this.target = Lazy.of(this::parse);
+	}
+
+	/**
+	 * Provide the {@link CodecRegistry} used to convert expressions.
+	 *
+	 * @param codecRegistry must not be {@literal null}.
+	 * @return new instance of {@link BindableMongoExpression}.
+	 */
+	public BindableMongoExpression withCodecRegistry(CodecRegistry codecRegistry) {
+		return new BindableMongoExpression(expressionString, () -> codecRegistry, args);
+	}
+
+	/**
+	 * Provide the arguments to bind to the placeholders via their index.
+	 *
+	 * @param args must not be {@literal null}.
+	 * @return new instance of {@link BindableMongoExpression}.
+	 */
+	public BindableMongoExpression bind(Object... args) {
+		return new BindableMongoExpression(expressionString, codecRegistryProvider, args);
+	}
+
+	@Override
+	public Document toDocument() {
+		return target.get();
+	}
+
+	@Override
+	public String toString() {
+		return "BindableMongoExpression{" + "expressionString='" + expressionString + '\'' + ", args="
+				+ Arrays.toString(args) + '}';
+	}
+
+	private Document parse() {
+
+		String expression = wrapJsonIfNecessary(expressionString);
+
+		if (ObjectUtils.isEmpty(args)) {
+
+			if (codecRegistryProvider == null) {
+				return Document.parse(expression);
+			}
+
+			return Document.parse(expression, codecRegistryProvider.getCodecFor(Document.class)
+					.orElseGet(() -> new DocumentCodec(codecRegistryProvider.getCodecRegistry())));
+		}
+
+		ParameterBindingDocumentCodec codec = codecRegistryProvider == null ? new ParameterBindingDocumentCodec()
+				: new ParameterBindingDocumentCodec(codecRegistryProvider.getCodecRegistry());
+		return codec.decode(expression, args);
+	}
+
+	private static String wrapJsonIfNecessary(String json) {
+
+		if (StringUtils.hasText(json) && (json.startsWith("{") && json.endsWith("}"))) {
+			return json;
+		}
+
+		return "{" + json + "}";
+	}
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,8 +25,10 @@ public class LazyLoadingException extends UncategorizedDataAccessException {
 	private static final long serialVersionUID = -7089224903873220037L;
 
 	/**
-	 * @param msg
-	 * @param cause
+	 * Constructor for LazyLoadingException.
+	 *
+	 * @param msg the detail message.
+	 * @param cause the exception thrown by underlying data access API.
 	 */
 	public LazyLoadingException(String msg, Throwable cause) {
 		super(msg, cause);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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 org.springframework.util.StringUtils;
 
 /**
  * Helper class featuring helper methods for working with MongoDb collections.
- * <p/>
- * <p/>
+ * <br />
+ * <br />
  * Mainly intended for internal use within the framework.
  *
  * @author Thomas Risberg

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2019 the original author or authors.
+ * Copyright 2011-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -45,7 +45,7 @@ public interface MongoDatabaseFactory extends CodecRegistryProvider, MongoSessio
 	/**
 	 * Obtain a {@link MongoDatabase} instance to access the database with the given name.
 	 *
-	 * @param dbName
+	 * @param dbName must not be {@literal null}.
 	 * @return never {@literal null}.
 	 * @throws DataAccessException
 	 */

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@ import com.mongodb.client.MongoDatabase;
  * Helper class for managing a {@link MongoDatabase} instances via {@link MongoDatabaseFactory}. Used for obtaining
  * {@link ClientSession session bound} resources, such as {@link MongoDatabase} and
  * {@link com.mongodb.client.MongoCollection} suitable for transactional usage.
- * <p />
+ * <br />
  * <strong>Note:</strong> Intended for internal usage only.
  *
  * @author Christoph Strobl
@@ -43,7 +43,7 @@ public class MongoDatabaseUtils {
 	/**
 	 * Obtain the default {@link MongoDatabase database} form the given {@link MongoDatabaseFactory factory} using
 	 * {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
 	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -56,7 +56,7 @@ public class MongoDatabaseUtils {
 
 	/**
 	 * Obtain the default {@link MongoDatabase database} form the given {@link MongoDatabaseFactory factory}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
 	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -71,7 +71,7 @@ public class MongoDatabaseUtils {
 	/**
 	 * Obtain the {@link MongoDatabase database} with given name form the given {@link MongoDatabaseFactory factory} using
 	 * {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
 	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -79,13 +79,13 @@ public class MongoDatabaseUtils {
 	 * @param factory the {@link MongoDatabaseFactory} to get the {@link MongoDatabase} from.
 	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
 	 */
-	public static MongoDatabase getDatabase(String dbName, MongoDatabaseFactory factory) {
+	public static MongoDatabase getDatabase(@Nullable String dbName, MongoDatabaseFactory factory) {
 		return doGetMongoDatabase(dbName, factory, SessionSynchronization.ON_ACTUAL_TRANSACTION);
 	}
 
 	/**
 	 * Obtain the {@link MongoDatabase database} with given name form the given {@link MongoDatabaseFactory factory}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the current
 	 * {@link Thread} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -94,7 +94,7 @@ public class MongoDatabaseUtils {
 	 * @param sessionSynchronization the synchronization to use. Must not be {@literal null}.
 	 * @return the {@link MongoDatabase} that is potentially associated with a transactional {@link ClientSession}.
 	 */
-	public static MongoDatabase getDatabase(String dbName, MongoDatabaseFactory factory,
+	public static MongoDatabase getDatabase(@Nullable String dbName, MongoDatabaseFactory factory,
 			SessionSynchronization sessionSynchronization) {
 		return doGetMongoDatabase(dbName, factory, sessionSynchronization);
 	}
@@ -104,7 +104,8 @@ public class MongoDatabaseUtils {
 
 		Assert.notNull(factory, "Factory must not be null!");
 
-		if (!TransactionSynchronizationManager.isSynchronizationActive()) {
+		if (sessionSynchronization == SessionSynchronization.NEVER
+				|| !TransactionSynchronizationManager.isSynchronizationActive()) {
 			return StringUtils.hasText(dbName) ? factory.getMongoDatabase(dbName) : factory.getMongoDatabase();
 		}
 
@@ -192,19 +193,11 @@ public class MongoDatabaseUtils {
 			this.resourceHolder = resourceHolder;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#shouldReleaseBeforeCompletion()
-		 */
 		@Override
 		protected boolean shouldReleaseBeforeCompletion() {
 			return false;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#processResourceAfterCommit(java.lang.Object)
-		 */
 		@Override
 		protected void processResourceAfterCommit(MongoResourceHolder resourceHolder) {
 
@@ -213,10 +206,6 @@ public class MongoDatabaseUtils {
 			}
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#afterCompletion(int)
-		 */
 		@Override
 		public void afterCompletion(int status) {
 
@@ -227,10 +216,6 @@ public class MongoDatabaseUtils {
 			super.afterCompletion(status);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.ResourceHolderSynchronization#releaseResource(java.lang.Object, java.lang.Object)
-		 */
 		@Override
 		protected void releaseResource(MongoResourceHolder resourceHolder, Object resourceKey) {
 

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

@@ -1,57 +0,0 @@
-/*
- * Copyright 2011-2020 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
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.springframework.data.mongodb;
-
-import org.springframework.dao.DataAccessException;
-
-import com.mongodb.client.MongoDatabase;
-
-/**
- * Interface for factories creating {@link MongoDatabase} instances.
- *
- * @author Mark Pollack
- * @author Thomas Darimont
- * @author Christoph Strobl
- * @deprecated since 3.0, use {@link MongoDatabaseFactory} instead.
- */
-@Deprecated
-public interface MongoDbFactory extends MongoDatabaseFactory {
-
-	/**
-	 * Creates a default {@link MongoDatabase} instance.
-	 *
-	 * @return
-	 * @throws DataAccessException
-	 * @deprecated since 3.0. Use {@link #getMongoDatabase()} instead.
-	 */
-	@Deprecated
-	default MongoDatabase getDb() throws DataAccessException {
-		return getMongoDatabase();
-	}
-
-	/**
-	 * Obtain a {@link MongoDatabase} instance to access the database with the given name.
-	 *
-	 * @param dbName must not be {@literal null} or empty.
-	 * @return
-	 * @throws DataAccessException
-	 * @deprecated since 3.0. Use {@link #getMongoDatabase(String)} instead.
-	 */
-	@Deprecated
-	default MongoDatabase getDb(String dbName) throws DataAccessException {
-		return getMongoDatabase(dbName);
-	}
-}

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

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2021-2022 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
+ *
+ *      https://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;
+
+/**
+ * Wrapper object for MongoDB expressions like {@code $toUpper : $name} that manifest as {@link org.bson.Document} when
+ * passed on to the driver.
+ * <br />
+ * A set of predefined {@link MongoExpression expressions}, including a
+ * {@link org.springframework.data.mongodb.core.aggregation.AggregationSpELExpression SpEL based variant} for method
+ * like expressions (eg. {@code toUpper(name)}) are available via the
+ * {@link org.springframework.data.mongodb.core.aggregation Aggregation API}.
+ *
+ * @author Christoph Strobl
+ * @since 3.2
+ * @see org.springframework.data.mongodb.core.aggregation.ArithmeticOperators
+ * @see org.springframework.data.mongodb.core.aggregation.ArrayOperators
+ * @see org.springframework.data.mongodb.core.aggregation.ComparisonOperators
+ * @see org.springframework.data.mongodb.core.aggregation.ConditionalOperators
+ * @see org.springframework.data.mongodb.core.aggregation.ConvertOperators
+ * @see org.springframework.data.mongodb.core.aggregation.DateOperators
+ * @see org.springframework.data.mongodb.core.aggregation.ObjectOperators
+ * @see org.springframework.data.mongodb.core.aggregation.SetOperators
+ * @see org.springframework.data.mongodb.core.aggregation.StringOperators
+ */
+@FunctionalInterface
+public interface MongoExpression {
+
+	/**
+	 * Create a new {@link MongoExpression} from plain {@link String} (eg. {@code $toUpper : $name}). <br />
+	 * The given expression will be wrapped with <code>{ ... }</code> to match an actual MongoDB {@link org.bson.Document}
+	 * if necessary.
+	 *
+	 * @param expression must not be {@literal null}.
+	 * @return new instance of {@link MongoExpression}.
+	 */
+	static MongoExpression create(String expression) {
+		return new BindableMongoExpression(expression, null);
+	}
+
+	/**
+	 * Create a new {@link MongoExpression} from plain {@link String} containing placeholders (eg. {@code $toUpper : ?0})
+	 * that will be resolved on first call of {@link #toDocument()}. <br />
+	 * The given expression will be wrapped with <code>{ ... }</code> to match an actual MongoDB {@link org.bson.Document}
+	 * if necessary.
+	 *
+	 * @param expression must not be {@literal null}.
+	 * @return new instance of {@link MongoExpression}.
+	 */
+	static MongoExpression create(String expression, Object... args) {
+		return new BindableMongoExpression(expression, args);
+	}
+
+	/**
+	 * Obtain the native {@link org.bson.Document} representation.
+	 *
+	 * @return never {@literal null}.
+	 */
+	org.bson.Document toDocument();
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.
@@ -24,7 +24,7 @@ import com.mongodb.client.ClientSession;
 /**
  * MongoDB specific {@link ResourceHolderSupport resource holder}, wrapping a {@link ClientSession}.
  * {@link MongoTransactionManager} binds instances of this class to the thread.
- * <p />
+ * <br />
  * <strong>Note:</strong> Intended for internal usage only.
  *
  * @author Christoph Strobl

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,18 +37,18 @@ import com.mongodb.client.ClientSession;
 /**
  * A {@link org.springframework.transaction.PlatformTransactionManager} implementation that manages
  * {@link ClientSession} based transactions for a single {@link MongoDatabaseFactory}.
- * <p />
+ * <br />
  * Binds a {@link ClientSession} from the specified {@link MongoDatabaseFactory} to the thread.
- * <p />
+ * <br />
  * {@link TransactionDefinition#isReadOnly() Readonly} transactions operate on a {@link ClientSession} and enable causal
  * consistency, and also {@link ClientSession#startTransaction() start}, {@link ClientSession#commitTransaction()
  * commit} or {@link ClientSession#abortTransaction() abort} a transaction.
- * <p />
+ * <br />
  * Application code is required to retrieve the {@link com.mongodb.client.MongoDatabase} via
  * {@link MongoDatabaseUtils#getDatabase(MongoDatabaseFactory)} instead of a standard
  * {@link MongoDatabaseFactory#getMongoDatabase()} call. Spring classes such as
  * {@link org.springframework.data.mongodb.core.MongoTemplate} use this strategy implicitly.
- * <p />
+ * <br />
  * By default failure of a {@literal commit} operation raises a {@link TransactionSystemException}. One may override
  * {@link #doCommit(MongoTransactionObject)} to implement the
  * <a href="https://docs.mongodb.com/manual/core/transactions/#retry-commit-operation">Retry Commit Operation</a>
@@ -69,11 +69,11 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 
 	/**
 	 * Create a new {@link MongoTransactionManager} for bean-style usage.
-	 * <p />
+	 * <br />
 	 * <strong>Note:</strong>The {@link MongoDatabaseFactory db factory} has to be
 	 * {@link #setDbFactory(MongoDatabaseFactory) set} before using the instance. Use this constructor to prepare a
 	 * {@link MongoTransactionManager} via a {@link org.springframework.beans.factory.BeanFactory}.
-	 * <p />
+	 * <br />
 	 * Optionally it is possible to set default {@link TransactionOptions transaction options} defining
 	 * {@link com.mongodb.ReadConcern} and {@link com.mongodb.WriteConcern}.
 	 *
@@ -106,10 +106,6 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		this.options = options;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doGetTransaction()
-	 */
 	@Override
 	protected Object doGetTransaction() throws TransactionException {
 
@@ -118,19 +114,11 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		return new MongoTransactionObject(resourceHolder);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#isExistingTransaction(java.lang.Object)
-	 */
 	@Override
 	protected boolean isExistingTransaction(Object transaction) throws TransactionException {
 		return extractMongoTransaction(transaction).hasResourceHolder();
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doBegin(java.lang.Object, org.springframework.transaction.TransactionDefinition)
-	 */
 	@Override
 	protected void doBegin(Object transaction, TransactionDefinition definition) throws TransactionException {
 
@@ -160,10 +148,6 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		TransactionSynchronizationManager.bindResource(getRequiredDbFactory(), resourceHolder);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doSuspend(java.lang.Object)
-	 */
 	@Override
 	protected Object doSuspend(Object transaction) throws TransactionException {
 
@@ -173,19 +157,11 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		return TransactionSynchronizationManager.unbindResource(getRequiredDbFactory());
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doResume(java.lang.Object, java.lang.Object)
-	 */
 	@Override
 	protected void doResume(@Nullable Object transaction, Object suspendedResources) {
 		TransactionSynchronizationManager.bindResource(getRequiredDbFactory(), suspendedResources);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doCommit(org.springframework.transaction.support.DefaultTransactionStatus)
-	 */
 	@Override
 	protected final void doCommit(DefaultTransactionStatus status) throws TransactionException {
 
@@ -212,8 +188,8 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 	 * By default those labels are ignored, nevertheless one might check for
 	 * {@link MongoException#UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL transient commit errors labels} and retry the the
 	 * commit. <br />
+	 * <pre>
 	 * <code>
-	 *     <pre>
 	 * int retries = 3;
 	 * do {
 	 *     try {
@@ -226,8 +202,8 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 	 *     }
 	 *     Thread.sleep(500);
 	 * } while (--retries > 0);
-	 *     </pre>
 	 * </code>
+	 * </pre>
 	 *
 	 * @param transactionObject never {@literal null}.
 	 * @throws Exception in case of transaction errors.
@@ -236,10 +212,6 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		transactionObject.commitTransaction();
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doRollback(org.springframework.transaction.support.DefaultTransactionStatus)
-	 */
 	@Override
 	protected void doRollback(DefaultTransactionStatus status) throws TransactionException {
 
@@ -259,10 +231,6 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		}
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doSetRollbackOnly(org.springframework.transaction.support.DefaultTransactionStatus)
-	 */
 	@Override
 	protected void doSetRollbackOnly(DefaultTransactionStatus status) throws TransactionException {
 
@@ -270,10 +238,6 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		transactionObject.getRequiredResourceHolder().setRollbackOnly();
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * org.springframework.transaction.support.AbstractPlatformTransactionManager#doCleanupAfterCompletion(java.lang.Object)
-	 */
 	@Override
 	protected void doCleanupAfterCompletion(Object transaction) {
 
@@ -325,19 +289,11 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 		return dbFactory;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.support.ResourceTransactionManager#getResourceFactory()
-	 */
 	@Override
 	public MongoDatabaseFactory getResourceFactory() {
 		return getRequiredDbFactory();
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
-	 */
 	@Override
 	public void afterPropertiesSet() {
 		getRequiredDbFactory();
@@ -505,19 +461,11 @@ public class MongoTransactionManager extends AbstractPlatformTransactionManager
 			return session;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see  org.springframework.transaction.support.SmartTransactionObject#isRollbackOnly()
-		 */
 		@Override
 		public boolean isRollbackOnly() {
 			return this.resourceHolder != null && this.resourceHolder.isRollbackOnly();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see  org.springframework.transaction.support.SmartTransactionObject#flush()
-		 */
 		@Override
 		public void flush() {
 			TransactionSynchronizationUtils.triggerFlush();

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,6 +31,7 @@ import com.mongodb.reactivestreams.client.MongoDatabase;
  *
  * @author Mark Paluch
  * @author Christoph Strobl
+ * @author Mathieu Ouellet
  * @since 2.0
  */
 public interface ReactiveMongoDatabaseFactory extends CodecRegistryProvider {
@@ -38,19 +39,19 @@ public interface ReactiveMongoDatabaseFactory extends CodecRegistryProvider {
 	/**
 	 * Creates a default {@link MongoDatabase} instance.
 	 *
-	 * @return
+	 * @return never {@literal null}.
 	 * @throws DataAccessException
 	 */
-	MongoDatabase getMongoDatabase() throws DataAccessException;
+	Mono<MongoDatabase> getMongoDatabase() throws DataAccessException;
 
 	/**
 	 * Obtain a {@link MongoDatabase} instance to access the database with the given name.
 	 *
 	 * @param dbName must not be {@literal null} or empty.
-	 * @return
+	 * @return never {@literal null}.
 	 * @throws DataAccessException
 	 */
-	MongoDatabase getMongoDatabase(String dbName) throws DataAccessException;
+	Mono<MongoDatabase> getMongoDatabase(String dbName) throws DataAccessException;
 
 	/**
 	 * Exposes a shared {@link MongoExceptionTranslator}.
@@ -64,10 +65,7 @@ public interface ReactiveMongoDatabaseFactory extends CodecRegistryProvider {
 	 *
 	 * @return never {@literal null}.
 	 */
-	@Override
-	default CodecRegistry getCodecRegistry() {
-		return getMongoDatabase().getCodecRegistry();
-	}
+	CodecRegistry getCodecRegistry();
 
 	/**
 	 * Obtain a {@link Mono} emitting a {@link ClientSession} for given {@link ClientSessionOptions options}.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2020 the original author or authors.
+ * Copyright 2019-2022 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.
@@ -36,11 +36,12 @@ import com.mongodb.reactivestreams.client.MongoDatabase;
  * Helper class for managing reactive {@link MongoDatabase} instances via {@link ReactiveMongoDatabaseFactory}. Used for
  * obtaining {@link ClientSession session bound} resources, such as {@link MongoDatabase} and {@link MongoCollection}
  * suitable for transactional usage.
- * <p />
+ * <br />
  * <strong>Note:</strong> Intended for internal usage only.
  *
  * @author Mark Paluch
  * @author Christoph Strobl
+ * @author Mathieu Ouellet
  * @since 2.2
  */
 public class ReactiveMongoDatabaseUtils {
@@ -74,7 +75,7 @@ public class ReactiveMongoDatabaseUtils {
 	/**
 	 * Obtain the default {@link MongoDatabase database} form the given {@link ReactiveMongoDatabaseFactory factory} using
 	 * {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
 	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -87,7 +88,7 @@ public class ReactiveMongoDatabaseUtils {
 
 	/**
 	 * Obtain the default {@link MongoDatabase database} form the given {@link ReactiveMongoDatabaseFactory factory}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
 	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -103,7 +104,7 @@ public class ReactiveMongoDatabaseUtils {
 	/**
 	 * Obtain the {@link MongoDatabase database} with given name form the given {@link ReactiveMongoDatabaseFactory
 	 * factory} using {@link SessionSynchronization#ON_ACTUAL_TRANSACTION native session synchronization}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
 	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -118,7 +119,7 @@ public class ReactiveMongoDatabaseUtils {
 	/**
 	 * Obtain the {@link MongoDatabase database} with given name form the given {@link ReactiveMongoDatabaseFactory
 	 * factory}.
-	 * <p />
+	 * <br />
 	 * Registers a {@link MongoSessionSynchronization MongoDB specific transaction synchronization} within the subscriber
 	 * {@link Context} if {@link TransactionSynchronizationManager#isSynchronizationActive() synchronization is active}.
 	 *
@@ -137,19 +138,22 @@ public class ReactiveMongoDatabaseUtils {
 
 		Assert.notNull(factory, "DatabaseFactory must not be null!");
 
+		if (sessionSynchronization == SessionSynchronization.NEVER) {
+			return getMongoDatabaseOrDefault(dbName, factory);
+		}
+
 		return TransactionSynchronizationManager.forCurrentTransaction()
 				.filter(TransactionSynchronizationManager::isSynchronizationActive) //
 				.flatMap(synchronizationManager -> {
 
 					return doGetSession(synchronizationManager, factory, sessionSynchronization) //
-							.map(it -> getMongoDatabaseOrDefault(dbName, factory.withSession(it)));
-				})
-				.onErrorResume(NoTransactionException.class,
-						e -> Mono.fromSupplier(() -> getMongoDatabaseOrDefault(dbName, factory)))
-				.defaultIfEmpty(getMongoDatabaseOrDefault(dbName, factory));
+							.flatMap(it -> getMongoDatabaseOrDefault(dbName, factory.withSession(it)));
+				}) //
+				.onErrorResume(NoTransactionException.class, e -> getMongoDatabaseOrDefault(dbName, factory))
+				.switchIfEmpty(getMongoDatabaseOrDefault(dbName, factory));
 	}
 
-	private static MongoDatabase getMongoDatabaseOrDefault(@Nullable String dbName,
+	private static Mono<MongoDatabase> getMongoDatabaseOrDefault(@Nullable String dbName,
 			ReactiveMongoDatabaseFactory factory) {
 		return StringUtils.hasText(dbName) ? factory.getMongoDatabase(dbName) : factory.getMongoDatabase();
 	}
@@ -210,19 +214,11 @@ public class ReactiveMongoDatabaseUtils {
 			this.resourceHolder = resourceHolder;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#shouldReleaseBeforeCompletion()
-		 */
 		@Override
 		protected boolean shouldReleaseBeforeCompletion() {
 			return false;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#processResourceAfterCommit(java.lang.Object)
-		 */
 		@Override
 		protected Mono<Void> processResourceAfterCommit(ReactiveMongoResourceHolder resourceHolder) {
 
@@ -233,10 +229,6 @@ public class ReactiveMongoDatabaseUtils {
 			return Mono.empty();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#afterCompletion(int)
-		 */
 		@Override
 		public Mono<Void> afterCompletion(int status) {
 
@@ -252,10 +244,6 @@ public class ReactiveMongoDatabaseUtils {
 			});
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.reactive.ReactiveResourceSynchronization#releaseResource(java.lang.Object, java.lang.Object)
-		 */
 		@Override
 		protected Mono<Void> releaseResource(ReactiveMongoResourceHolder resourceHolder, Object resourceKey) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2020 the original author or authors.
+ * Copyright 2019-2022 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.
@@ -24,7 +24,7 @@ import com.mongodb.reactivestreams.client.ClientSession;
 /**
  * MongoDB specific resource holder, wrapping a {@link ClientSession}. {@link ReactiveMongoTransactionManager} binds
  * instances of this class to the subscriber context.
- * <p />
+ * <br />
  * <strong>Note:</strong> Intended for internal usage only.
  *
  * @author Mark Paluch

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2020 the original author or authors.
+ * Copyright 2019-2022 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.
@@ -38,21 +38,21 @@ import com.mongodb.reactivestreams.client.ClientSession;
  * A {@link org.springframework.transaction.ReactiveTransactionManager} implementation that manages
  * {@link com.mongodb.reactivestreams.client.ClientSession} based transactions for a single
  * {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory}.
- * <p />
+ * <br />
  * Binds a {@link ClientSession} from the specified
  * {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory} to the subscriber
  * {@link reactor.util.context.Context}.
- * <p />
+ * <br />
  * {@link org.springframework.transaction.TransactionDefinition#isReadOnly() Readonly} transactions operate on a
  * {@link ClientSession} and enable causal consistency, and also {@link ClientSession#startTransaction() start},
  * {@link com.mongodb.reactivestreams.client.ClientSession#commitTransaction() commit} or
  * {@link ClientSession#abortTransaction() abort} a transaction.
- * <p />
+ * <br />
  * Application code is required to retrieve the {@link com.mongodb.reactivestreams.client.MongoDatabase} via
  * {@link org.springframework.data.mongodb.ReactiveMongoDatabaseUtils#getDatabase(ReactiveMongoDatabaseFactory)} instead
  * of a standard {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory#getMongoDatabase()} call. Spring
  * classes such as {@link org.springframework.data.mongodb.core.ReactiveMongoTemplate} use this strategy implicitly.
- * <p />
+ * <br />
  * By default failure of a {@literal commit} operation raises a {@link TransactionSystemException}. You can override
  * {@link #doCommit(TransactionSynchronizationManager, ReactiveMongoTransactionObject)} to implement the
  * <a href="https://docs.mongodb.com/manual/core/transactions/#retry-commit-operation">Retry Commit Operation</a>
@@ -71,11 +71,11 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 
 	/**
 	 * Create a new {@link ReactiveMongoTransactionManager} for bean-style usage.
-	 * <p />
+	 * <br />
 	 * <strong>Note:</strong>The {@link org.springframework.data.mongodb.ReactiveMongoDatabaseFactory db factory} has to
 	 * be {@link #setDatabaseFactory(ReactiveMongoDatabaseFactory)} set} before using the instance. Use this constructor
 	 * to prepare a {@link ReactiveMongoTransactionManager} via a {@link org.springframework.beans.factory.BeanFactory}.
-	 * <p />
+	 * <br />
 	 * Optionally it is possible to set default {@link TransactionOptions transaction options} defining
 	 * {@link com.mongodb.ReadConcern} and {@link com.mongodb.WriteConcern}.
 	 *
@@ -110,10 +110,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		this.options = options;
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doGetTransaction(org.springframework.transaction.reactive.TransactionSynchronizationManager)
-	 */
 	@Override
 	protected Object doGetTransaction(TransactionSynchronizationManager synchronizationManager)
 			throws TransactionException {
@@ -123,19 +119,11 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		return new ReactiveMongoTransactionObject(resourceHolder);
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#isExistingTransaction(java.lang.Object)
-	 */
 	@Override
 	protected boolean isExistingTransaction(Object transaction) throws TransactionException {
 		return extractMongoTransaction(transaction).hasResourceHolder();
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doBegin(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object, org.springframework.transaction.TransactionDefinition)
-	 */
 	@Override
 	protected Mono<Void> doBegin(TransactionSynchronizationManager synchronizationManager, Object transaction,
 			TransactionDefinition definition) throws TransactionException {
@@ -175,10 +163,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doSuspend(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object)
-	 */
 	@Override
 	protected Mono<Object> doSuspend(TransactionSynchronizationManager synchronizationManager, Object transaction)
 			throws TransactionException {
@@ -192,10 +176,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doResume(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object, java.lang.Object)
-	 */
 	@Override
 	protected Mono<Void> doResume(TransactionSynchronizationManager synchronizationManager, @Nullable Object transaction,
 			Object suspendedResources) {
@@ -203,10 +183,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 				.fromRunnable(() -> synchronizationManager.bindResource(getRequiredDatabaseFactory(), suspendedResources));
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doCommit(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
-	 */
 	@Override
 	protected final Mono<Void> doCommit(TransactionSynchronizationManager synchronizationManager,
 			GenericReactiveTransaction status) throws TransactionException {
@@ -243,10 +219,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		return transactionObject.commitTransaction();
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doRollback(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
-	 */
 	@Override
 	protected Mono<Void> doRollback(TransactionSynchronizationManager synchronizationManager,
 			GenericReactiveTransaction status) {
@@ -268,10 +240,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doSetRollbackOnly(org.springframework.transaction.reactive.TransactionSynchronizationManager, org.springframework.transaction.reactive.GenericReactiveTransaction)
-	 */
 	@Override
 	protected Mono<Void> doSetRollbackOnly(TransactionSynchronizationManager synchronizationManager,
 			GenericReactiveTransaction status) throws TransactionException {
@@ -282,10 +250,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		});
 	}
 
-	/* 
-	 * (non-Javadoc)
-	 * @see org.springframework.transaction.reactive.AbstractReactiveTransactionManager#doCleanupAfterCompletion(org.springframework.transaction.reactive.TransactionSynchronizationManager, java.lang.Object)
-	 */
 	@Override
 	protected Mono<Void> doCleanupAfterCompletion(TransactionSynchronizationManager synchronizationManager,
 			Object transaction) {
@@ -340,10 +304,6 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 		return databaseFactory;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
-	 */
 	@Override
 	public void afterPropertiesSet() {
 		getRequiredDatabaseFactory();
@@ -509,19 +469,11 @@ public class ReactiveMongoTransactionManager extends AbstractReactiveTransaction
 			return session;
 		}
 
-		/* 
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.SmartTransactionObject#isRollbackOnly()
-		 */
 		@Override
 		public boolean isRollbackOnly() {
 			return this.resourceHolder != null && this.resourceHolder.isRollbackOnly();
 		}
 
-		/* 
-		 * (non-Javadoc)
-		 * @see org.springframework.transaction.support.SmartTransactionObject#flush()
-		 */
 		@Override
 		public void flush() {
 			throw new UnsupportedOperationException("flush() not supported");

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,7 +35,7 @@ import com.mongodb.session.ClientSession;
 /**
  * {@link MethodInterceptor} implementation looking up and invoking an alternative target method having
  * {@link ClientSession} as its first argument. This allows seamless integration with the existing code base.
- * <p />
+ * <br />
  * The {@link MethodInterceptor} is aware of methods on {@code MongoCollection} that my return new instances of itself
  * like (eg. {@link com.mongodb.reactivestreams.client.MongoCollection#withWriteConcern(WriteConcern)} and decorate them
  * if not already proxied.
@@ -95,10 +95,6 @@ public class SessionAwareMethodInterceptor<D, C> implements MethodInterceptor {
 		this.sessionType = sessionType;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.aopalliance.intercept.MethodInterceptor(org.aopalliance.intercept.MethodInvocation)
-	 */
 	@Nullable
 	@Override
 	public Object invoke(MethodInvocation methodInvocation) throws Throwable {

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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 +15,20 @@
  */
 package org.springframework.data.mongodb;
 
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.data.mongodb.core.ReactiveMongoTemplate;
+
 /**
- * {@link SessionSynchronization} is used along with {@link org.springframework.data.mongodb.core.MongoTemplate} to
- * define in which type of transactions to participate if any.
+ * {@link SessionSynchronization} is used along with {@code MongoTemplate} to define in which type of transactions to
+ * participate if any.
  *
  * @author Christoph Strobl
  * @author Mark Paluch
  * @since 2.1
+ * @see MongoTemplate#setSessionSynchronization(SessionSynchronization)
+ * @see MongoDatabaseUtils#getDatabase(MongoDatabaseFactory, SessionSynchronization)
+ * @see ReactiveMongoTemplate#setSessionSynchronization(SessionSynchronization)
+ * @see ReactiveMongoDatabaseUtils#getDatabase(ReactiveMongoDatabaseFactory, SessionSynchronization)
  */
 public enum SessionSynchronization {
 
@@ -34,5 +41,12 @@ public enum SessionSynchronization {
 	/**
 	 * Synchronize with native MongoDB transactions initiated via {@link MongoTransactionManager}.
 	 */
-	ON_ACTUAL_TRANSACTION;
+	ON_ACTUAL_TRANSACTION,
+
+	/**
+	 * Do not participate in ongoing transactions.
+	 *
+	 * @since 3.2.5
+	 */
+	NEVER;
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 the original author or authors.
+ * Copyright 2020-2022 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.
@@ -15,8 +15,8 @@
  */
 package org.springframework.data.mongodb;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.springframework.data.util.Version;
 import org.springframework.util.StringUtils;
 
@@ -31,7 +31,7 @@ import com.mongodb.MongoDriverInformation;
  */
 public class SpringDataMongoDB {
 
-	private static final Logger LOGGER = LoggerFactory.getLogger(SpringDataMongoDB.class);
+	private static final Log LOGGER = LogFactory.getLog(SpringDataMongoDB.class);
 
 	private static final Version FALLBACK_VERSION = new Version(3);
 	private static final MongoDriverInformation DRIVER_INFORMATION = MongoDriverInformation
@@ -48,7 +48,7 @@ public class SpringDataMongoDB {
 
 	/**
 	 * Fetches the "Implementation-Version" manifest attribute from the jar file.
-	 * <p />
+	 * <br />
 	 * Note that some ClassLoaders do not expose the package metadata, hence this class might not be able to determine the
 	 * version in all environments. In this case the current Major version is returned as a fallback.
 	 *
@@ -68,7 +68,7 @@ public class SpringDataMongoDB {
 		try {
 			return Version.parse(versionString);
 		} catch (Exception e) {
-			LOGGER.debug("Cannot read Spring Data MongoDB version '{}'.", versionString);
+			LOGGER.debug(String.format("Cannot read Spring Data MongoDB version '%s'.", versionString));
 		}
 
 		return FALLBACK_VERSION;

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,9 +25,7 @@ import org.springframework.data.mongodb.core.convert.DbRefResolver;
 import org.springframework.data.mongodb.core.convert.DefaultDbRefResolver;
 import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
 import org.springframework.data.mongodb.core.convert.MongoCustomConversions;
-import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
-import org.springframework.lang.Nullable;
 
 import com.mongodb.MongoClientSettings;
 import com.mongodb.MongoClientSettings.Builder;
@@ -80,24 +78,6 @@ public abstract class AbstractMongoClientConfiguration extends MongoConfiguratio
 		return new SimpleMongoClientDatabaseFactory(mongoClient(), getDatabaseName());
 	}
 
-	/**
-	 * 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 AbstractMongoClientConfiguration} the base package will be considered {@code com.acme} unless the method is
-	 * overridden to implement alternate behavior.
-	 *
-	 * @return the base package to scan for mapped {@link Document} classes or {@literal null} to not enable scanning for
-	 *         entities.
-	 * @deprecated use {@link #getMappingBasePackages()} instead.
-	 */
-	@Deprecated
-	@Nullable
-	protected String getMappingBasePackage() {
-
-		Package mappingBasePackage = getClass().getPackage();
-		return mappingBasePackage == null ? null : mappingBasePackage.getName();
-	}
-
 	/**
 	 * Creates a {@link MappingMongoConverter} using the configured {@link #mongoDbFactory()} and
 	 * {@link #mongoMappingContext(MongoCustomConversions)}. Will get {@link #customConversions()} applied.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 the original author or authors.
+ * Copyright 2019-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,10 +30,6 @@ import com.mongodb.ConnectionString;
  */
 public class ConnectionStringPropertyEditor extends PropertyEditorSupport {
 
-	/*
-	 * (non-Javadoc)
-	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
-	 */
 	@Override
 	public void setAsText(@Nullable String connectionString) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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.
@@ -42,29 +42,29 @@ public @interface EnableMongoAuditing {
 	/**
 	 * Configures the {@link AuditorAware} bean to be used to lookup the current principal.
 	 *
-	 * @return
+	 * @return empty {@link String} by default.
 	 */
 	String auditorAwareRef() default "";
 
 	/**
 	 * Configures whether the creation and modification dates are set. Defaults to {@literal true}.
 	 *
-	 * @return
+	 * @return {@literal true} by default.
 	 */
 	boolean setDates() default true;
 
 	/**
 	 * Configures whether the entity shall be marked as modified on creation. Defaults to {@literal true}.
 	 *
-	 * @return
+	 * @return {@literal true} by default.
 	 */
 	boolean modifyOnCreate() default true;
 
 	/**
-	 * Configures a {@link DateTimeProvider} bean name that allows customizing the {@link org.joda.time.DateTime} to be
-	 * used for setting creation and modification dates.
+	 * Configures a {@link DateTimeProvider} bean name that allows customizing the timestamp to be used for setting
+	 * creation and modification dates.
 	 *
-	 * @return
+	 * @return empty {@link String} by default.
 	 */
 	String dateTimeProviderRef() default "";
 }

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

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2020-2022 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
+ *
+ *      https://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.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.context.annotation.Import;
+import org.springframework.data.auditing.DateTimeProvider;
+import org.springframework.data.domain.ReactiveAuditorAware;
+
+/**
+ * Annotation to enable auditing in MongoDB using reactive infrastructure via annotation configuration.
+ *
+ * @author Mark Paluch
+ * @since 3.1
+ */
+@Inherited
+@Documented
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Import(ReactiveMongoAuditingRegistrar.class)
+public @interface EnableReactiveMongoAuditing {
+
+	/**
+	 * Configures the {@link ReactiveAuditorAware} bean to be used to lookup the current principal.
+	 *
+	 * @return empty {@link String} by default.
+	 */
+	String auditorAwareRef() default "";
+
+	/**
+	 * Configures whether the creation and modification dates are set. Defaults to {@literal true}.
+	 *
+	 * @return {@literal true} by default.
+	 */
+	boolean setDates() default true;
+
+	/**
+	 * Configures whether the entity shall be marked as modified on creation. Defaults to {@literal true}.
+	 *
+	 * @return {@literal true} by default.
+	 */
+	boolean modifyOnCreate() default true;
+
+	/**
+	 * Configures a {@link DateTimeProvider} bean name that allows customizing the timestamp to be used for setting
+	 * creation and modification dates.
+	 *
+	 * @return empty {@link String} by default.
+	 */
+	String dateTimeProviderRef() default "";
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,10 +34,6 @@ import org.w3c.dom.Element;
  */
 class GridFsTemplateParser 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 {
@@ -46,10 +42,6 @@ class GridFsTemplateParser extends AbstractBeanDefinitionParser {
 		return StringUtils.hasText(id) ? id : BeanNames.GRID_FS_TEMPLATE_BEAN_NAME;
 	}
 
-	/*
-	 * (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) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.
@@ -80,7 +80,7 @@ import org.w3c.dom.Element;
 public class MappingMongoConverterParser implements BeanDefinitionParser {
 
 	private static final String BASE_PACKAGE = "base-package";
-	private static final boolean JSR_303_PRESENT = ClassUtils.isPresent("javax.validation.Validator",
+	private static final boolean JSR_303_PRESENT = ClassUtils.isPresent("jakarta.validation.Validator",
 			MappingMongoConverterParser.class.getClassLoader());
 
 	/* (non-Javadoc)
@@ -376,10 +376,6 @@ public class MappingMongoConverterParser implements BeanDefinitionParser {
 			this.delegates = new HashSet<>(Arrays.asList(filters));
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.core.type.filter.TypeFilter#match(org.springframework.core.type.classreading.MetadataReader, org.springframework.core.type.classreading.MetadataReaderFactory)
-		 */
 		public boolean match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)
 				throws IOException {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2022 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.
@@ -47,28 +47,16 @@ public class MongoAuditingBeanDefinitionParser extends AbstractSingleBeanDefinit
 	private static boolean PROJECT_REACTOR_AVAILABLE = ClassUtils.isPresent("reactor.core.publisher.Mono",
 			MongoAuditingRegistrar.class.getClassLoader());
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser#getBeanClass(org.w3c.dom.Element)
-	 */
 	@Override
 	protected Class<?> getBeanClass(Element element) {
 		return AuditingEntityCallback.class;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#shouldGenerateId()
-	 */
 	@Override
 	protected boolean shouldGenerateId() {
 		return true;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser#doParse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext, org.springframework.beans.factory.support.BeanDefinitionBuilder)
-	 */
 	@Override
 	protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-2022 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 +17,8 @@ package org.springframework.data.mongodb.config;
 
 import java.lang.annotation.Annotation;
 
-import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.config.RuntimeBeanReference;
 import org.springframework.beans.factory.support.AbstractBeanDefinition;
 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
@@ -29,13 +29,9 @@ import org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarS
 import org.springframework.data.auditing.config.AuditingConfiguration;
 import org.springframework.data.config.ParsingUtils;
 import org.springframework.data.mapping.context.MappingContext;
-import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
-import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
-import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
+import org.springframework.data.mongodb.core.mapping.MongoMappingContext;
 import org.springframework.data.mongodb.core.mapping.event.AuditingEntityCallback;
-import org.springframework.data.mongodb.core.mapping.event.ReactiveAuditingEntityCallback;
 import org.springframework.util.Assert;
-import org.springframework.util.ClassUtils;
 
 /**
  * {@link ImportBeanDefinitionRegistrar} to enable {@link EnableMongoAuditing} annotation.
@@ -46,31 +42,16 @@ import org.springframework.util.ClassUtils;
  */
 class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 
-	private static boolean PROJECT_REACTOR_AVAILABLE = ClassUtils.isPresent("reactor.core.publisher.Mono",
-			MongoAuditingRegistrar.class.getClassLoader());
-
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAnnotation()
-	 */
 	@Override
 	protected Class<? extends Annotation> getAnnotation() {
 		return EnableMongoAuditing.class;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditingHandlerBeanName()
-	 */
 	@Override
 	protected String getAuditingHandlerBeanName() {
 		return "mongoAuditingHandler";
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerBeanDefinitions(org.springframework.core.type.AnnotationMetadata, org.springframework.beans.factory.support.BeanDefinitionRegistry)
-	 */
 	@Override
 	public void registerBeanDefinitions(AnnotationMetadata annotationMetadata, BeanDefinitionRegistry registry) {
 
@@ -80,10 +61,6 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 		super.registerBeanDefinitions(annotationMetadata, registry);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#getAuditHandlerBeanDefinitionBuilder(org.springframework.data.auditing.config.AuditingConfiguration)
-	 */
 	@Override
 	protected BeanDefinitionBuilder getAuditHandlerBeanDefinitionBuilder(AuditingConfiguration configuration) {
 
@@ -91,17 +68,13 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 
 		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(IsNewAwareAuditingHandler.class);
 
-		BeanDefinitionBuilder definition = BeanDefinitionBuilder.genericBeanDefinition(MongoMappingContextLookup.class);
-		definition.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_CONSTRUCTOR);
+		BeanDefinitionBuilder definition = BeanDefinitionBuilder.genericBeanDefinition(org.springframework.data.repository.config.PersistentEntitiesFactoryBean.class);
+		definition.addConstructorArgValue(new RuntimeBeanReference(MappingContext.class));
 
 		builder.addConstructorArgValue(definition.getBeanDefinition());
 		return configureDefaultAuditHandlerAttributes(configuration, builder);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport#registerAuditListener(org.springframework.beans.factory.config.BeanDefinition, org.springframework.beans.factory.support.BeanDefinitionRegistry)
-	 */
 	@Override
 	protected void registerAuditListenerBeanDefinition(BeanDefinition auditingHandlerDefinition,
 			BeanDefinitionRegistry registry) {
@@ -116,68 +89,6 @@ class MongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
 
 		registerInfrastructureBeanWithId(listenerBeanDefinitionBuilder.getBeanDefinition(),
 				AuditingEntityCallback.class.getName(), registry);
-
-		if (PROJECT_REACTOR_AVAILABLE) {
-			registerReactiveAuditingEntityCallback(registry, auditingHandlerDefinition.getSource());
-		}
 	}
 
-	private void registerReactiveAuditingEntityCallback(BeanDefinitionRegistry registry, Object source) {
-
-		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ReactiveAuditingEntityCallback.class);
-
-		builder.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(getAuditingHandlerBeanName(), registry));
-		builder.getRawBeanDefinition().setSource(source);
-
-		registerInfrastructureBeanWithId(builder.getBeanDefinition(), ReactiveAuditingEntityCallback.class.getName(),
-				registry);
-	}
-
-	/**
-	 * Simple helper to be able to wire the {@link MappingContext} from a {@link MappingMongoConverter} bean available in
-	 * the application context.
-	 *
-	 * @author Oliver Gierke
-	 */
-	static class MongoMappingContextLookup
-			implements FactoryBean<MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty>> {
-
-		private final MappingMongoConverter converter;
-
-		/**
-		 * Creates a new {@link MongoMappingContextLookup} for the given {@link MappingMongoConverter}.
-		 *
-		 * @param converter must not be {@literal null}.
-		 */
-		public MongoMappingContextLookup(MappingMongoConverter converter) {
-			this.converter = converter;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.beans.factory.FactoryBean#getObject()
-		 */
-		@Override
-		public MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> getObject() throws Exception {
-			return converter.getMappingContext();
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.beans.factory.FactoryBean#getObjectType()
-		 */
-		@Override
-		public Class<?> getObjectType() {
-			return MappingContext.class;
-		}
-
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.beans.factory.FactoryBean#isSingleton()
-		 */
-		@Override
-		public boolean isSingleton() {
-			return true;
-		}
-	}
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,10 +35,6 @@ import org.w3c.dom.Element;
  */
 public class MongoClientParser implements BeanDefinitionParser {
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.BeanDefinitionParser#parse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
-	 */
 	public BeanDefinition parse(Element element, ParserContext parserContext) {
 
 		Object source = parserContext.extractSource(element);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,7 +26,6 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.type.filter.AnnotationTypeFilter;
-import org.springframework.data.annotation.Persistent;
 import org.springframework.data.convert.CustomConversions;
 import org.springframework.data.mapping.model.CamelCaseAbbreviatingFieldNamingStrategy;
 import org.springframework.data.mapping.model.FieldNamingStrategy;
@@ -95,7 +94,7 @@ public abstract class MongoConfigurationSupport {
 	/**
 	 * Register custom {@link Converter}s in a {@link CustomConversions} object if required. These
 	 * {@link CustomConversions} will be registered with the
-	 * {@link org.springframework.data.mongodb.core.convert.MappingMongoConverter} and {@link #mongoMappingContext()}.
+	 * {@link org.springframework.data.mongodb.core.convert.MappingMongoConverter} and {@link MongoMappingContext}.
 	 * Returns an empty {@link MongoCustomConversions} instance by default.
 	 * <p>
 	 * <strong>NOTE:</strong> Use {@link #configureConverters(MongoConverterConfigurationAdapter)} to configure MongoDB
@@ -140,8 +139,7 @@ public abstract class MongoConfigurationSupport {
 	}
 
 	/**
-	 * Scans the given base package for entities, i.e. MongoDB specific types annotated with {@link Document} and
-	 * {@link Persistent}.
+	 * Scans the given base package for entities, i.e. MongoDB specific types annotated with {@link Document}.
 	 *
 	 * @param basePackage must not be {@literal null}.
 	 * @return
@@ -161,7 +159,6 @@ public abstract class MongoConfigurationSupport {
 			ClassPathScanningCandidateComponentProvider componentProvider = new ClassPathScanningCandidateComponentProvider(
 					false);
 			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Document.class));
-			componentProvider.addIncludeFilter(new AnnotationTypeFilter(Persistent.class));
 
 			for (BeanDefinition candidate : componentProvider.findCandidateComponents(basePackage)) {
 
@@ -175,8 +172,7 @@ public abstract class MongoConfigurationSupport {
 
 	/**
 	 * Configures whether to abbreviate field names for domain objects by configuring a
-	 * {@link CamelCaseAbbreviatingFieldNamingStrategy} on the {@link MongoMappingContext} instance created. For advanced
-	 * customization needs, consider overriding {@link #mappingMongoConverter()}.
+	 * {@link CamelCaseAbbreviatingFieldNamingStrategy} on the {@link MongoMappingContext} instance created.
 	 *
 	 * @return
 	 */
@@ -217,6 +213,7 @@ public abstract class MongoConfigurationSupport {
 	protected MongoClientSettings mongoClientSettings() {
 
 		MongoClientSettings.Builder builder = MongoClientSettings.builder();
+		builder.uuidRepresentation(UuidRepresentation.JAVA_LEGACY);
 		configureClientSettings(builder);
 		return builder.build();
 	}
@@ -228,6 +225,6 @@ public abstract class MongoConfigurationSupport {
 	 * @since 3.0
 	 */
 	protected void configureClientSettings(MongoClientSettings.Builder builder) {
-		builder.uuidRepresentation(UuidRepresentation.JAVA_LEGACY);
+		// customization hook
 	}
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.
@@ -51,10 +51,6 @@ public class MongoCredentialPropertyEditor extends PropertyEditorSupport {
 	private static final String OPTIONS_DELIMITER = "?";
 	private static final String OPTION_VALUE_DELIMITER = "&";
 
-	/*
-	 * (non-Javadoc)
-	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
-	 */
 	@Override
 	public void setAsText(@Nullable String text) throws IllegalArgumentException {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.
@@ -62,10 +62,6 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		MONGO_URI_ALLOWED_ADDITIONAL_ATTRIBUTES = Collections.unmodifiableSet(mongoUriAllowedAdditionalAttributes);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.AbstractBeanDefinitionParser#resolveId(org.w3c.dom.Element, org.springframework.beans.factory.support.AbstractBeanDefinition, org.springframework.beans.factory.xml.ParserContext)
-	 */
 	@Override
 	protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
 			throws BeanDefinitionStoreException {
@@ -74,10 +70,6 @@ public class MongoDbFactoryParser extends AbstractBeanDefinitionParser {
 		return StringUtils.hasText(id) ? id : BeanNames.DB_FACTORY_BEAN_NAME;
 	}
 
-	/*
-	 * (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) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,10 +26,6 @@ import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
  */
 public class MongoNamespaceHandler extends NamespaceHandlerSupport {
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.NamespaceHandler#init()
-	 */
 	public void init() {
 
 		registerBeanDefinitionParser("mapping-converter", new MappingMongoConverterParser());

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,9 +22,12 @@ 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.BeanDefinitionValidationException;
 import org.springframework.beans.factory.support.ManagedMap;
 import org.springframework.beans.factory.xml.BeanDefinitionParser;
 import org.springframework.data.mongodb.core.MongoClientSettingsFactoryBean;
+import org.springframework.data.mongodb.core.MongoServerApiFactoryBean;
+import org.springframework.util.StringUtils;
 import org.springframework.util.xml.DomUtils;
 import org.w3c.dom.Element;
 
@@ -37,7 +40,6 @@ import org.w3c.dom.Element;
  * @author Christoph Strobl
  * @author Mark Paluch
  */
-@SuppressWarnings("deprecation")
 abstract class MongoParsingUtils {
 
 	private MongoParsingUtils() {}
@@ -45,7 +47,7 @@ abstract class MongoParsingUtils {
 	/**
 	 * Parses the {@code mongo:client-settings} sub-element. Populates the given attribute factory with the proper
 	 * attributes.
-	 * 
+	 *
 	 * @param element
 	 * @param mongoClientBuilder
 	 * @return
@@ -112,6 +114,20 @@ abstract class MongoParsingUtils {
 		// Field level encryption
 		setPropertyReference(clientOptionsDefBuilder, settingsElement, "encryption-settings-ref", "autoEncryptionSettings");
 
+		// ServerAPI
+		if (StringUtils.hasText(settingsElement.getAttribute("server-api-version"))) {
+
+			MongoServerApiFactoryBean serverApiFactoryBean = new MongoServerApiFactoryBean();
+			serverApiFactoryBean.setVersion(settingsElement.getAttribute("server-api-version"));
+			try {
+				clientOptionsDefBuilder.addPropertyValue("serverApi", serverApiFactoryBean.getObject());
+			} catch (Exception exception) {
+				throw new BeanDefinitionValidationException("Non parsable server-api.", exception);
+			}
+		} else {
+			setPropertyReference(clientOptionsDefBuilder, settingsElement, "server-api-ref", "serverApi");
+		}
+
 		// and the rest
 
 		mongoClientBuilder.addPropertyValue("mongoClientSettings", clientOptionsDefBuilder.getBeanDefinition());

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.
@@ -39,10 +39,6 @@ import org.w3c.dom.Element;
  */
 class MongoTemplateParser 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 {
@@ -51,10 +47,6 @@ class MongoTemplateParser extends AbstractBeanDefinitionParser {
 		return StringUtils.hasText(id) ? id : BeanNames.MONGO_TEMPLATE_BEAN_NAME;
 	}
 
-	/*
-	 * (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) {
 

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

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2020-2022 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
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.mongodb.config;
+
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.data.mapping.context.PersistentEntities;
+import org.springframework.data.mongodb.core.convert.MappingMongoConverter;
+
+/**
+ * Simple helper to be able to wire the {@link PersistentEntities} from a {@link MappingMongoConverter} bean available
+ * in the application context.
+ *
+ * @author Oliver Gierke
+ * @author Mark Paluch
+ * @author Christoph Strobl
+ * @since 3.1
+ */
+public class PersistentEntitiesFactoryBean implements FactoryBean<PersistentEntities> {
+
+	private final MappingMongoConverter converter;
+
+	/**
+	 * Creates a new {@link PersistentEntitiesFactoryBean} for the given {@link MappingMongoConverter}.
+	 *
+	 * @param converter must not be {@literal null}.
+	 */
+	public PersistentEntitiesFactoryBean(MappingMongoConverter converter) {
+		this.converter = converter;
+	}
+
+	@Override
+	public PersistentEntities getObject() {
+		return PersistentEntities.of(converter.getMappingContext());
+	}
+
+	@Override
+	public Class<?> getObjectType() {
+		return PersistentEntities.class;
+	}
+}

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

@@ -0,0 +1,81 @@
+/*
+ * Copyright 2020-2022 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
+ *
+ *      https://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.lang.annotation.Annotation;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.support.AbstractBeanDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.support.BeanDefinitionRegistry;
+import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
+import org.springframework.core.type.AnnotationMetadata;
+import org.springframework.data.auditing.ReactiveIsNewAwareAuditingHandler;
+import org.springframework.data.auditing.config.AuditingBeanDefinitionRegistrarSupport;
+import org.springframework.data.auditing.config.AuditingConfiguration;
+import org.springframework.data.config.ParsingUtils;
+import org.springframework.data.mongodb.core.mapping.event.ReactiveAuditingEntityCallback;
+import org.springframework.util.Assert;
+
+/**
+ * {@link ImportBeanDefinitionRegistrar} to enable {@link EnableReactiveMongoAuditing} annotation.
+ *
+ * @author Mark Paluch
+ * @since 3.1
+ */
+class ReactiveMongoAuditingRegistrar extends AuditingBeanDefinitionRegistrarSupport {
+
+	@Override
+	protected Class<? extends Annotation> getAnnotation() {
+		return EnableReactiveMongoAuditing.class;
+	}
+
+	@Override
+	protected String getAuditingHandlerBeanName() {
+		return "reactiveMongoAuditingHandler";
+	}
+
+	@Override
+	protected BeanDefinitionBuilder getAuditHandlerBeanDefinitionBuilder(AuditingConfiguration configuration) {
+
+		Assert.notNull(configuration, "AuditingConfiguration must not be null!");
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ReactiveIsNewAwareAuditingHandler.class);
+
+		BeanDefinitionBuilder definition = BeanDefinitionBuilder.genericBeanDefinition(PersistentEntitiesFactoryBean.class);
+		definition.setAutowireMode(AbstractBeanDefinition.AUTOWIRE_CONSTRUCTOR);
+
+		builder.addConstructorArgValue(definition.getBeanDefinition());
+		return configureDefaultAuditHandlerAttributes(configuration, builder);
+	}
+
+	@Override
+	protected void registerAuditListenerBeanDefinition(BeanDefinition auditingHandlerDefinition,
+			BeanDefinitionRegistry registry) {
+
+		Assert.notNull(auditingHandlerDefinition, "BeanDefinition must not be null!");
+		Assert.notNull(registry, "BeanDefinitionRegistry must not be null!");
+
+		BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(ReactiveAuditingEntityCallback.class);
+
+		builder.addConstructorArgValue(ParsingUtils.getObjectFactoryBeanDefinition(getAuditingHandlerBeanName(), registry));
+		builder.getRawBeanDefinition().setSource(auditingHandlerDefinition.getSource());
+
+		registerInfrastructureBeanWithId(builder.getBeanDefinition(), ReactiveAuditingEntityCallback.class.getName(),
+				registry);
+	}
+
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019 the original author or authors.
+ * Copyright 2019-2022 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.
@@ -32,10 +32,6 @@ import com.mongodb.ReadConcernLevel;
  */
 public class ReadConcernPropertyEditor extends PropertyEditorSupport {
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.beans.factory.xml.BeanDefinitionParser#parse(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
-	 */
 	@Override
 	public void setAsText(@Nullable String readConcernString) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.
@@ -29,10 +29,6 @@ import com.mongodb.ReadPreference;
  */
 public class ReadPreferencePropertyEditor extends PropertyEditorSupport {
 
-	/*
-	 * (non-Javadoc)
-	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
-	 */
 	@Override
 	public void setAsText(@Nullable String readPreferenceString) throws IllegalArgumentException {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.
@@ -21,8 +21,8 @@ import java.net.UnknownHostException;
 import java.util.HashSet;
 import java.util.Set;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
@@ -43,13 +43,9 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 	 * A port is a number without a leading 0 at the end of the address that is proceeded by just a single :.
 	 */
 	private static final String HOST_PORT_SPLIT_PATTERN = "(?<!:):(?=[123456789]\\d*$)";
-	private static final String COULD_NOT_PARSE_ADDRESS_MESSAGE = "Could not parse address {} '{}'. Check your replica set configuration!";
-	private static final Logger LOG = LoggerFactory.getLogger(ServerAddressPropertyEditor.class);
+	private static final String COULD_NOT_PARSE_ADDRESS_MESSAGE = "Could not parse address %s '%s'. Check your replica set configuration!";
+	private static final Log LOG = LogFactory.getLog(ServerAddressPropertyEditor.class);
 
-	/*
-	 * (non-Javadoc)
-	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
-	 */
 	@Override
 	public void setAsText(@Nullable String replicaSetString) {
 
@@ -88,14 +84,18 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 	private ServerAddress parseServerAddress(String source) {
 
 		if (!StringUtils.hasText(source)) {
-			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "source", source);
+			if(LOG.isWarnEnabled()) {
+				LOG.warn(String.format(COULD_NOT_PARSE_ADDRESS_MESSAGE, "source", source));
+			}
 			return null;
 		}
 
 		String[] hostAndPort = extractHostAddressAndPort(source.trim());
 
 		if (hostAndPort.length > 2) {
-			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "source", source);
+			if(LOG.isWarnEnabled()) {
+				LOG.warn(String.format(COULD_NOT_PARSE_ADDRESS_MESSAGE, "source", source));
+			}
 			return null;
 		}
 
@@ -105,9 +105,13 @@ public class ServerAddressPropertyEditor extends PropertyEditorSupport {
 
 			return port == null ? new ServerAddress(hostAddress) : new ServerAddress(hostAddress, port);
 		} catch (UnknownHostException e) {
-			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "host", hostAndPort[0]);
+			if(LOG.isWarnEnabled()) {
+				LOG.warn(String.format(COULD_NOT_PARSE_ADDRESS_MESSAGE, "host", hostAndPort[0]));
+			}
 		} catch (NumberFormatException e) {
-			LOG.warn(COULD_NOT_PARSE_ADDRESS_MESSAGE, "port", hostAndPort[1]);
+			if(LOG.isWarnEnabled()) {
+				LOG.warn(String.format(COULD_NOT_PARSE_ADDRESS_MESSAGE, "port", hostAndPort[1]));
+			}
 		}
 
 		return null;

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * Copyright 2012-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,10 +26,6 @@ import com.mongodb.WriteConcern;
  */
 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);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 the original author or authors.
+ * Copyright 2020-2022 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.
@@ -29,10 +29,6 @@ import org.springframework.util.StringUtils;
  */
 public class UUidRepresentationPropertyEditor extends PropertyEditorSupport {
 
-	/*
-	 * (non-Javadoc)
-	 * @see java.beans.PropertyEditorSupport#setAsText(java.lang.String)
-	 */
 	@Override
 	public void setAsText(@Nullable String value) {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.
@@ -15,8 +15,6 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.AllArgsConstructor;
-
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
@@ -29,7 +27,9 @@ import org.springframework.data.mongodb.core.aggregation.Aggregation;
 import org.springframework.data.mongodb.core.aggregation.AggregationOperation;
 import org.springframework.data.mongodb.core.aggregation.AggregationOperationContext;
 import org.springframework.data.mongodb.core.aggregation.AggregationOptions;
+import org.springframework.data.mongodb.core.aggregation.AggregationOptions.DomainTypeMapping;
 import org.springframework.data.mongodb.core.aggregation.CountOperation;
+import org.springframework.data.mongodb.core.aggregation.RelaxedTypeBasedAggregationOperationContext;
 import org.springframework.data.mongodb.core.aggregation.TypeBasedAggregationOperationContext;
 import org.springframework.data.mongodb.core.aggregation.TypedAggregation;
 import org.springframework.data.mongodb.core.convert.QueryMapper;
@@ -37,6 +37,7 @@ import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.mongodb.core.query.CriteriaDefinition;
 import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.util.Lazy;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
@@ -49,34 +50,50 @@ import org.springframework.util.ObjectUtils;
  * @author Mark Paluch
  * @since 2.1
  */
-@AllArgsConstructor
 class AggregationUtil {
 
 	QueryMapper queryMapper;
 	MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext;
+	Lazy<AggregationOperationContext> untypedMappingContext;
 
-	/**
-	 * Prepare the {@link AggregationOperationContext} for a given aggregation by either returning the context itself it
-	 * is not {@literal null}, create a {@link TypeBasedAggregationOperationContext} if the aggregation contains type
-	 * information (is a {@link TypedAggregation}) or use the {@link Aggregation#DEFAULT_CONTEXT}.
-	 *
-	 * @param aggregation must not be {@literal null}.
-	 * @param context can be {@literal null}.
-	 * @return the root {@link AggregationOperationContext} to use.
-	 */
-	AggregationOperationContext prepareAggregationContext(Aggregation aggregation,
-			@Nullable AggregationOperationContext context) {
+	AggregationUtil(QueryMapper queryMapper,
+			MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> mappingContext) {
 
-		if (context != null) {
-			return context;
+		this.queryMapper = queryMapper;
+		this.mappingContext = mappingContext;
+		this.untypedMappingContext = Lazy
+				.of(() -> new RelaxedTypeBasedAggregationOperationContext(Object.class, mappingContext, queryMapper));
+	}
+
+	AggregationOperationContext createAggregationContext(Aggregation aggregation, @Nullable Class<?> inputType) {
+
+		DomainTypeMapping domainTypeMapping = aggregation.getOptions().getDomainTypeMapping();
+
+		if (domainTypeMapping == DomainTypeMapping.NONE) {
+			return Aggregation.DEFAULT_CONTEXT;
 		}
 
-		if (aggregation instanceof TypedAggregation) {
-			return new TypeBasedAggregationOperationContext(((TypedAggregation) aggregation).getInputType(), mappingContext,
-					queryMapper);
+		if (!(aggregation instanceof TypedAggregation)) {
+
+			if(inputType == null) {
+				return untypedMappingContext.get();
+			}
+
+			if (domainTypeMapping == DomainTypeMapping.STRICT
+					&& !aggregation.getPipeline().containsUnionWith()) {
+				return new TypeBasedAggregationOperationContext(inputType, mappingContext, queryMapper);
+			}
+
+			return new RelaxedTypeBasedAggregationOperationContext(inputType, mappingContext, queryMapper);
 		}
 
-		return Aggregation.DEFAULT_CONTEXT;
+		inputType = ((TypedAggregation<?>) aggregation).getInputType();
+		if (domainTypeMapping == DomainTypeMapping.STRICT
+				&& !aggregation.getPipeline().containsUnionWith()) {
+			return new TypeBasedAggregationOperationContext(inputType, mappingContext, queryMapper);
+		}
+
+		return new RelaxedTypeBasedAggregationOperationContext(inputType, mappingContext, queryMapper);
 	}
 
 	/**
@@ -88,7 +105,7 @@ class AggregationUtil {
 	 */
 	List<Document> createPipeline(Aggregation aggregation, AggregationOperationContext context) {
 
-		if (!ObjectUtils.nullSafeEquals(context, Aggregation.DEFAULT_CONTEXT)) {
+		if (ObjectUtils.nullSafeEquals(context, Aggregation.DEFAULT_CONTEXT)) {
 			return aggregation.toPipeline(context);
 		}
 
@@ -115,53 +132,6 @@ class AggregationUtil {
 		return command;
 	}
 
-	/**
-	 * Create a {@code $count} aggregation for {@link Query} and optionally a {@link Class entity class}.
-	 *
-	 * @param query must not be {@literal null}.
-	 * @param entityClass can be {@literal null} if the {@link Query} object is empty.
-	 * @return the {@link Aggregation} pipeline definition to run a {@code $count} aggregation.
-	 */
-	Aggregation createCountAggregation(Query query, @Nullable Class<?> entityClass) {
-
-		List<AggregationOperation> pipeline = computeCountAggregationPipeline(query, entityClass);
-
-		Aggregation aggregation = entityClass != null ? Aggregation.newAggregation(entityClass, pipeline)
-				: Aggregation.newAggregation(pipeline);
-		aggregation.withOptions(AggregationOptions.builder().collation(query.getCollation().orElse(null)).build());
-
-		return aggregation;
-	}
-
-	private List<AggregationOperation> computeCountAggregationPipeline(Query query, @Nullable Class<?> entityType) {
-
-		CountOperation count = Aggregation.count().as("totalEntityCount");
-		if (query.getQueryObject().isEmpty()) {
-			return Collections.singletonList(count);
-		}
-
-		Assert.notNull(entityType, "Entity type must not be null!");
-
-		Document mappedQuery = queryMapper.getMappedObject(query.getQueryObject(),
-				mappingContext.getPersistentEntity(entityType));
-
-		CriteriaDefinition criteria = new CriteriaDefinition() {
-
-			@Override
-			public Document getCriteriaObject() {
-				return mappedQuery;
-			}
-
-			@Nullable
-			@Override
-			public String getKey() {
-				return null;
-			}
-		};
-
-		return Arrays.asList(Aggregation.match(criteria), count);
-	}
-
 	private List<Document> mapAggregationPipeline(List<Document> pipeline) {
 
 		return pipeline.stream().map(val -> queryMapper.getMappedObject(val, Optional.empty()))

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.
@@ -94,7 +94,6 @@ public interface BulkOperations {
 	 * Add a list of updates to the bulk operation. For each update request, all matching documents are updated.
 	 *
 	 * @param updates Update operations to perform.
-	 * @return The bulk operation.
 	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
 	 */
 	BulkOperations updateMulti(List<Pair<Query, Update>> updates);
@@ -105,7 +104,6 @@ public interface BulkOperations {
 	 *
 	 * @param query Update criteria.
 	 * @param update Update operation to perform.
-	 * @return The bulk operation.
 	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
 	 */
 	BulkOperations upsert(Query query, Update update);
@@ -115,7 +113,6 @@ public interface BulkOperations {
 	 * else an insert.
 	 *
 	 * @param updates Updates/insert operations to perform.
-	 * @return The bulk operation.
 	 * @return the current {@link BulkOperations} instance with the update added, will never be {@literal null}.
 	 */
 	BulkOperations upsert(List<Pair<Query, Update>> updates);

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.
@@ -15,8 +15,6 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.EqualsAndHashCode;
-
 import java.time.Instant;
 import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
 
@@ -27,6 +25,7 @@ import org.springframework.data.mongodb.core.convert.MongoConverter;
 import org.springframework.data.mongodb.core.messaging.Message;
 import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
+import org.springframework.util.ObjectUtils;
 
 import com.mongodb.client.model.changestream.ChangeStreamDocument;
 import com.mongodb.client.model.changestream.OperationType;
@@ -39,7 +38,6 @@ import com.mongodb.client.model.changestream.OperationType;
  * @author Mark Paluch
  * @since 2.1
  */
-@EqualsAndHashCode
 public class ChangeStreamEvent<T> {
 
 	@SuppressWarnings("rawtypes") //
@@ -187,16 +185,35 @@ public class ChangeStreamEvent<T> {
 			return CONVERTED_UPDATER.compareAndSet(this, null, result) ? result : CONVERTED_UPDATER.get(this);
 		}
 
-		throw new IllegalArgumentException(String.format("No converter found capable of converting %s to %s",
-				fullDocument.getClass(), targetType));
+		throw new IllegalArgumentException(
+				String.format("No converter found capable of converting %s to %s", fullDocument.getClass(), targetType));
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see java.lang.Object#toString()
-	 */
 	@Override
 	public String toString() {
 		return "ChangeStreamEvent {" + "raw=" + raw + ", targetType=" + targetType + '}';
 	}
+
+	@Override
+	public boolean equals(Object o) {
+
+		if (this == o)
+			return true;
+		if (o == null || getClass() != o.getClass())
+			return false;
+
+		ChangeStreamEvent<?> that = (ChangeStreamEvent<?>) o;
+
+		if (!ObjectUtils.nullSafeEquals(this.raw, that.raw)) {
+			return false;
+		}
+		return ObjectUtils.nullSafeEquals(this.targetType, that.targetType);
+	}
+
+	@Override
+	public int hashCode() {
+		int result = raw != null ? raw.hashCode() : 0;
+		result = 31 * result + ObjectUtils.nullSafeHashCode(targetType);
+		return result;
+	}
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.
@@ -15,8 +15,6 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.EqualsAndHashCode;
-
 import java.time.Instant;
 import java.util.Arrays;
 import java.util.Optional;
@@ -25,7 +23,6 @@ import org.bson.BsonDocument;
 import org.bson.BsonTimestamp;
 import org.bson.BsonValue;
 import org.bson.Document;
-
 import org.springframework.data.mongodb.core.aggregation.Aggregation;
 import org.springframework.data.mongodb.core.query.Collation;
 import org.springframework.lang.Nullable;
@@ -45,7 +42,6 @@ import com.mongodb.client.model.changestream.FullDocument;
  * @author Mark Paluch
  * @since 2.1
  */
-@EqualsAndHashCode
 public class ChangeStreamOptions {
 
 	private @Nullable Object filter;
@@ -156,6 +152,44 @@ public class ChangeStreamOptions {
 						+ ObjectUtils.nullSafeClassName(timestamp));
 	}
 
+	@Override
+	public boolean equals(Object o) {
+		if (this == o)
+			return true;
+		if (o == null || getClass() != o.getClass())
+			return false;
+
+		ChangeStreamOptions that = (ChangeStreamOptions) o;
+
+		if (!ObjectUtils.nullSafeEquals(this.filter, that.filter)) {
+			return false;
+		}
+		if (!ObjectUtils.nullSafeEquals(this.resumeToken, that.resumeToken)) {
+			return false;
+		}
+		if (!ObjectUtils.nullSafeEquals(this.fullDocumentLookup, that.fullDocumentLookup)) {
+			return false;
+		}
+		if (!ObjectUtils.nullSafeEquals(this.collation, that.collation)) {
+			return false;
+		}
+		if (!ObjectUtils.nullSafeEquals(this.resumeTimestamp, that.resumeTimestamp)) {
+			return false;
+		}
+		return resume == that.resume;
+	}
+
+	@Override
+	public int hashCode() {
+		int result = ObjectUtils.nullSafeHashCode(filter);
+		result = 31 * result + ObjectUtils.nullSafeHashCode(resumeToken);
+		result = 31 * result + ObjectUtils.nullSafeHashCode(fullDocumentLookup);
+		result = 31 * result + ObjectUtils.nullSafeHashCode(collation);
+		result = 31 * result + ObjectUtils.nullSafeHashCode(resumeTimestamp);
+		result = 31 * result + ObjectUtils.nullSafeHashCode(resume);
+		return result;
+	}
+
 	/**
 	 * @author Christoph Strobl
 	 * @since 2.2
@@ -208,13 +242,13 @@ public class ChangeStreamOptions {
 
 		/**
 		 * Set the filter to apply.
-		 * <p/>
+		 * <br />
 		 * Fields on aggregation expression root level are prefixed to map to fields contained in
 		 * {@link ChangeStreamDocument#getFullDocument() fullDocument}. However {@literal operationType}, {@literal ns},
 		 * {@literal documentKey} and {@literal fullDocument} are reserved words that will be omitted, and therefore taken
 		 * as given, during the mapping procedure. You may want to have a look at the
 		 * <a href="https://docs.mongodb.com/manual/reference/change-events/">structure of Change Events</a>.
-		 * <p/>
+		 * <br />
 		 * Use {@link org.springframework.data.mongodb.core.aggregation.TypedAggregation} to ensure filter expressions are
 		 * mapped to domain type fields.
 		 *

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2022 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.
@@ -29,7 +29,7 @@ import com.mongodb.client.MongoCollection;
  * @author Grame Rocher
  * @author Oliver Gierke
  * @author John Brisbin
- * @auhtor Christoph Strobl
+ * @author Christoph Strobl
  * @since 1.0
  */
 public interface CollectionCallback<T> {

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2022 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.
@@ -15,12 +15,13 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.RequiredArgsConstructor;
-
 import java.util.Optional;
 
+import org.springframework.data.mongodb.core.mapping.Field;
 import org.springframework.data.mongodb.core.query.Collation;
 import org.springframework.data.mongodb.core.schema.MongoJsonSchema;
+import org.springframework.data.mongodb.core.timeseries.Granularity;
+import org.springframework.data.mongodb.core.timeseries.GranularityDefinition;
 import org.springframework.data.mongodb.core.validation.Validator;
 import org.springframework.data.util.Optionals;
 import org.springframework.lang.Nullable;
@@ -44,29 +45,18 @@ public class CollectionOptions {
 	private @Nullable Boolean capped;
 	private @Nullable Collation collation;
 	private ValidationOptions validationOptions;
-
-	/**
-	 * Constructs a new <code>CollectionOptions</code> instance.
-	 *
-	 * @param size the collection size in bytes, this data space is preallocated. Can be {@literal null}.
-	 * @param maxDocuments the maximum number of documents in the collection. Can be {@literal null}.
-	 * @param capped true to created a "capped" collection (fixed size with auto-FIFO behavior based on insertion order),
-	 *          false otherwise. Can be {@literal null}.
-	 * @deprecated since 2.0 please use {@link CollectionOptions#empty()} as entry point.
-	 */
-	@Deprecated
-	public CollectionOptions(@Nullable Long size, @Nullable Long maxDocuments, @Nullable Boolean capped) {
-		this(size, maxDocuments, capped, null, ValidationOptions.none());
-	}
+	private @Nullable TimeSeriesOptions timeSeriesOptions;
 
 	private CollectionOptions(@Nullable Long size, @Nullable Long maxDocuments, @Nullable Boolean capped,
-			@Nullable Collation collation, ValidationOptions validationOptions) {
+			@Nullable Collation collation, ValidationOptions validationOptions,
+			@Nullable TimeSeriesOptions timeSeriesOptions) {
 
 		this.maxDocuments = maxDocuments;
 		this.size = size;
 		this.capped = capped;
 		this.collation = collation;
 		this.validationOptions = validationOptions;
+		this.timeSeriesOptions = timeSeriesOptions;
 	}
 
 	/**
@@ -80,7 +70,7 @@ public class CollectionOptions {
 
 		Assert.notNull(collation, "Collation must not be null!");
 
-		return new CollectionOptions(null, null, null, collation, ValidationOptions.none());
+		return new CollectionOptions(null, null, null, collation, ValidationOptions.none(), null);
 	}
 
 	/**
@@ -90,18 +80,32 @@ public class CollectionOptions {
 	 * @since 2.0
 	 */
 	public static CollectionOptions empty() {
-		return new CollectionOptions(null, null, null, null, ValidationOptions.none());
+		return new CollectionOptions(null, null, null, null, ValidationOptions.none(), null);
+	}
+
+	/**
+	 * Quick way to set up {@link CollectionOptions} for a Time Series collection. For more advanced settings use
+	 * {@link #timeSeries(TimeSeriesOptions)}.
+	 *
+	 * @param timeField The name of the property which contains the date in each time series document. Must not be
+	 *          {@literal null}.
+	 * @return new instance of {@link CollectionOptions}.
+	 * @see #timeSeries(TimeSeriesOptions)
+	 * @since 3.3
+	 */
+	public static CollectionOptions timeSeries(String timeField) {
+		return empty().timeSeries(TimeSeriesOptions.timeSeries(timeField));
 	}
 
 	/**
 	 * Create new {@link CollectionOptions} with already given settings and capped set to {@literal true}. <br />
-	 * <strong>NOTE</strong> Using capped collections requires defining {@link #size(int)}.
+	 * <strong>NOTE</strong> Using capped collections requires defining {@link #size(long)}.
 	 *
 	 * @return new {@link CollectionOptions}.
 	 * @since 2.0
 	 */
 	public CollectionOptions capped() {
-		return new CollectionOptions(size, maxDocuments, true, collation, validationOptions);
+		return new CollectionOptions(size, maxDocuments, true, collation, validationOptions, null);
 	}
 
 	/**
@@ -112,7 +116,7 @@ public class CollectionOptions {
 	 * @since 2.0
 	 */
 	public CollectionOptions maxDocuments(long maxDocuments) {
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions, timeSeriesOptions);
 	}
 
 	/**
@@ -123,7 +127,7 @@ public class CollectionOptions {
 	 * @since 2.0
 	 */
 	public CollectionOptions size(long size) {
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions, timeSeriesOptions);
 	}
 
 	/**
@@ -134,7 +138,7 @@ public class CollectionOptions {
 	 * @since 2.0
 	 */
 	public CollectionOptions collation(@Nullable Collation collation) {
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions, timeSeriesOptions);
 	}
 
 	/**
@@ -254,7 +258,20 @@ public class CollectionOptions {
 	public CollectionOptions validation(ValidationOptions validationOptions) {
 
 		Assert.notNull(validationOptions, "ValidationOptions must not be null!");
-		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions);
+		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions, timeSeriesOptions);
+	}
+
+	/**
+	 * Create new {@link CollectionOptions} with the given {@link TimeSeriesOptions}.
+	 *
+	 * @param timeSeriesOptions must not be {@literal null}.
+	 * @return new instance of {@link CollectionOptions}.
+	 * @since 3.3
+	 */
+	public CollectionOptions timeSeries(TimeSeriesOptions timeSeriesOptions) {
+
+		Assert.notNull(timeSeriesOptions, "TimeSeriesOptions must not be null!");
+		return new CollectionOptions(size, maxDocuments, capped, collation, validationOptions, timeSeriesOptions);
 	}
 
 	/**
@@ -305,6 +322,16 @@ public class CollectionOptions {
 		return validationOptions.isEmpty() ? Optional.empty() : Optional.of(validationOptions);
 	}
 
+	/**
+	 * Get the {@link TimeSeriesOptions} if available.
+	 *
+	 * @return {@link Optional#empty()} if not specified.
+	 * @since 3.3
+	 */
+	public Optional<TimeSeriesOptions> getTimeSeriesOptions() {
+		return Optional.ofNullable(timeSeriesOptions);
+	}
+
 	/**
 	 * Encapsulation of ValidationOptions options.
 	 *
@@ -312,7 +339,6 @@ public class CollectionOptions {
 	 * @author Andreas Zink
 	 * @since 2.1
 	 */
-	@RequiredArgsConstructor
 	public static class ValidationOptions {
 
 		private static final ValidationOptions NONE = new ValidationOptions(null, null, null);
@@ -321,6 +347,13 @@ public class CollectionOptions {
 		private final @Nullable ValidationLevel validationLevel;
 		private final @Nullable ValidationAction validationAction;
 
+		public ValidationOptions(Validator validator, ValidationLevel validationLevel, ValidationAction validationAction) {
+
+			this.validator = validator;
+			this.validationLevel = validationLevel;
+			this.validationAction = validationAction;
+		}
+
 		/**
 		 * Create an empty {@link ValidationOptions}.
 		 *
@@ -381,7 +414,7 @@ public class CollectionOptions {
 		/**
 		 * Get the {@code validationAction} to perform.
 		 *
-		 * @return @return {@link Optional#empty()} if not set.
+		 * @return {@link Optional#empty()} if not set.
 		 */
 		public Optional<ValidationAction> getValidationAction() {
 			return Optional.ofNullable(validationAction);
@@ -394,4 +427,89 @@ public class CollectionOptions {
 			return !Optionals.isAnyPresent(getValidator(), getValidationAction(), getValidationLevel());
 		}
 	}
+
+	/**
+	 * Options applicable to Time Series collections.
+	 *
+	 * @author Christoph Strobl
+	 * @since 3.3
+	 * @see <a href=
+	 *      "https://docs.mongodb.com/manual/core/timeseries-collections">https://docs.mongodb.com/manual/core/timeseries-collections</a>
+	 */
+	public static class TimeSeriesOptions {
+
+		private final String timeField;
+
+		private @Nullable final String metaField;
+
+		private final GranularityDefinition granularity;
+
+		private TimeSeriesOptions(String timeField, @Nullable String metaField, GranularityDefinition granularity) {
+
+			Assert.hasText(timeField, "Time field must not be empty or null!");
+
+			this.timeField = timeField;
+			this.metaField = metaField;
+			this.granularity = granularity;
+		}
+
+		/**
+		 * Create a new instance of {@link TimeSeriesOptions} using the given field as its {@literal timeField}. The one,
+		 * that contains the date in each time series document. <br />
+		 * {@link Field#name() Annotated fieldnames} will be considered during the mapping process.
+		 *
+		 * @param timeField must not be {@literal null}.
+		 * @return new instance of {@link TimeSeriesOptions}.
+		 */
+		public static TimeSeriesOptions timeSeries(String timeField) {
+			return new TimeSeriesOptions(timeField, null, Granularity.DEFAULT);
+		}
+
+		/**
+		 * Set the name of the field which contains metadata in each time series document. Should not be the {@literal id}
+		 * nor {@link TimeSeriesOptions#timeSeries(String)} timeField} nor point to an {@literal array} or
+		 * {@link java.util.Collection}. <br />
+		 * {@link Field#name() Annotated fieldnames} will be considered during the mapping process.
+		 *
+		 * @param metaField must not be {@literal null}.
+		 * @return new instance of {@link TimeSeriesOptions}.
+		 */
+		public TimeSeriesOptions metaField(String metaField) {
+			return new TimeSeriesOptions(timeField, metaField, granularity);
+		}
+
+		/**
+		 * Select the {@link GranularityDefinition} parameter to define how data in the time series collection is organized.
+		 * Select one that is closest to the time span between incoming measurements.
+		 *
+		 * @return new instance of {@link TimeSeriesOptions}.
+		 * @see Granularity
+		 */
+		public TimeSeriesOptions granularity(GranularityDefinition granularity) {
+			return new TimeSeriesOptions(timeField, metaField, granularity);
+		}
+
+		/**
+		 * @return never {@literal null}.
+		 */
+		public String getTimeField() {
+			return timeField;
+		}
+
+		/**
+		 * @return can be {@literal null}. Might be an {@literal empty} {@link String} as well, so maybe check via
+		 *         {@link org.springframework.util.StringUtils#hasText(String)}.
+		 */
+		@Nullable
+		public String getMetaField() {
+			return metaField;
+		}
+
+		/**
+		 * @return never {@literal null}.
+		 */
+		public GranularityDefinition getGranularity() {
+			return granularity;
+		}
+	}
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2019-2020 the original author or authors.
+ * Copyright 2019-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -43,9 +43,10 @@ public interface CursorPreparer extends ReadPreferenceAware {
 	/**
 	 * Prepare the given cursor (apply limits, skips and so on). Returns the prepared cursor.
 	 *
-	 * @param cursor
+	 * @param iterable must not be {@literal null}.
+	 * @return never {@literal null}.
 	 */
-	FindIterable<Document> prepare(FindIterable<Document> cursor);
+	FindIterable<Document> prepare(FindIterable<Document> iterable);
 
 	/**
 	 * Apply query specific settings to {@link MongoCollection} and initate a find operation returning a
@@ -53,7 +54,7 @@ public interface CursorPreparer extends ReadPreferenceAware {
 	 *
 	 * @param collection must not be {@literal null}.
 	 * @param find must not be {@literal null}.
-	 * @return
+	 * @return never {@literal null}.
 	 * @throws IllegalArgumentException if one of the required arguments is {@literal null}.
 	 * @since 2.2
 	 */

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.
@@ -15,9 +15,6 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.NonNull;
-import lombok.Value;
-
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -27,8 +24,9 @@ import java.util.stream.Collectors;
 import org.bson.Document;
 import org.bson.conversions.Bson;
 import org.springframework.context.ApplicationEventPublisher;
-import org.springframework.dao.support.PersistenceExceptionTranslator;
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.data.mapping.callback.EntityCallbacks;
+import org.springframework.data.mongodb.BulkOperationException;
 import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.convert.UpdateMapper;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
@@ -47,7 +45,9 @@ import org.springframework.data.mongodb.core.query.UpdateDefinition.ArrayFilter;
 import org.springframework.data.util.Pair;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
+import org.springframework.util.ObjectUtils;
 
+import com.mongodb.MongoBulkWriteException;
 import com.mongodb.WriteConcern;
 import com.mongodb.bulk.BulkWriteResult;
 import com.mongodb.client.MongoCollection;
@@ -64,6 +64,7 @@ import com.mongodb.client.model.*;
  * @author Jens Schauder
  * @author Michail Nikolaev
  * @author Roman Puchkovskiy
+ * @author Jacob Botuck
  * @since 1.9
  */
 class DefaultBulkOperations implements BulkOperations {
@@ -73,7 +74,6 @@ class DefaultBulkOperations implements BulkOperations {
 	private final BulkOperationContext bulkOperationContext;
 	private final List<SourceAwareWriteModelHolder> models = new ArrayList<>();
 
-	private PersistenceExceptionTranslator exceptionTranslator;
 	private @Nullable WriteConcern defaultWriteConcern;
 
 	private BulkWriteOptions bulkOptions;
@@ -97,19 +97,9 @@ class DefaultBulkOperations implements BulkOperations {
 		this.mongoOperations = mongoOperations;
 		this.collectionName = collectionName;
 		this.bulkOperationContext = bulkOperationContext;
-		this.exceptionTranslator = new MongoExceptionTranslator();
 		this.bulkOptions = getBulkWriteOptions(bulkOperationContext.getBulkMode());
 	}
 
-	/**
-	 * Configures the {@link PersistenceExceptionTranslator} to be used. Defaults to {@link MongoExceptionTranslator}.
-	 *
-	 * @param exceptionTranslator can be {@literal null}.
-	 */
-	public void setExceptionTranslator(@Nullable PersistenceExceptionTranslator exceptionTranslator) {
-		this.exceptionTranslator = exceptionTranslator == null ? new MongoExceptionTranslator() : exceptionTranslator;
-	}
-
 	/**
 	 * Configures the default {@link WriteConcern} to be used. Defaults to {@literal null}.
 	 *
@@ -119,10 +109,6 @@ class DefaultBulkOperations implements BulkOperations {
 		this.defaultWriteConcern = defaultWriteConcern;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#insert(java.lang.Object)
-	 */
 	@Override
 	public BulkOperations insert(Object document) {
 
@@ -135,10 +121,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#insert(java.util.List)
-	 */
 	@Override
 	public BulkOperations insert(List<? extends Object> documents) {
 
@@ -149,10 +131,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#updateOne(org.springframework.data.mongodb.core.query.Query, org.springframework.data.mongodb.core.query.Update)
-	 */
 	@Override
 	@SuppressWarnings("unchecked")
 	public BulkOperations updateOne(Query query, Update update) {
@@ -163,10 +141,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return updateOne(Collections.singletonList(Pair.of(query, update)));
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#updateOne(java.util.List)
-	 */
 	@Override
 	public BulkOperations updateOne(List<Pair<Query, Update>> updates) {
 
@@ -179,10 +153,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#updateMulti(org.springframework.data.mongodb.core.query.Query, org.springframework.data.mongodb.core.query.Update)
-	 */
 	@Override
 	@SuppressWarnings("unchecked")
 	public BulkOperations updateMulti(Query query, Update update) {
@@ -193,10 +163,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return updateMulti(Collections.singletonList(Pair.of(query, update)));
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#updateMulti(java.util.List)
-	 */
 	@Override
 	public BulkOperations updateMulti(List<Pair<Query, Update>> updates) {
 
@@ -209,19 +175,11 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#upsert(org.springframework.data.mongodb.core.query.Query, org.springframework.data.mongodb.core.query.Update)
-	 */
 	@Override
 	public BulkOperations upsert(Query query, Update update) {
 		return update(query, update, true, true);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#upsert(java.util.List)
-	 */
 	@Override
 	public BulkOperations upsert(List<Pair<Query, Update>> updates) {
 
@@ -232,10 +190,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#remove(org.springframework.data.mongodb.core.query.Query)
-	 */
 	@Override
 	public BulkOperations remove(Query query) {
 
@@ -249,10 +203,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#remove(java.util.List)
-	 */
 	@Override
 	public BulkOperations remove(List<Query> removes) {
 
@@ -265,10 +215,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#replaceOne(org.springframework.data.mongodb.core.query.Query, java.lang.Object, org.springframework.data.mongodb.core.FindAndReplaceOptions)
-	 */
 	@Override
 	public BulkOperations replaceOne(Query query, Object replacement, FindAndReplaceOptions options) {
 
@@ -288,10 +234,6 @@ class DefaultBulkOperations implements BulkOperations {
 		return this;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.BulkOperations#executeBulk()
-	 */
 	@Override
 	public com.mongodb.bulk.BulkWriteResult execute() {
 
@@ -316,11 +258,26 @@ class DefaultBulkOperations implements BulkOperations {
 			collection = collection.withWriteConcern(defaultWriteConcern);
 		}
 
-		return collection.bulkWrite( //
-				models.stream() //
-						.map(this::extractAndMapWriteModel) //
-						.collect(Collectors.toList()), //
-				bulkOptions);
+		try {
+
+			return collection.bulkWrite( //
+					models.stream() //
+							.map(this::extractAndMapWriteModel) //
+							.collect(Collectors.toList()), //
+					bulkOptions);
+		} catch (RuntimeException ex) {
+
+			if (ex instanceof MongoBulkWriteException) {
+
+				MongoBulkWriteException mongoBulkWriteException = (MongoBulkWriteException) ex;
+				if (mongoBulkWriteException.getWriteConcernError() != null) {
+					throw new DataIntegrityViolationException(ex.getMessage(), ex);
+				}
+				throw new BulkOperationException(ex.getMessage(), mongoBulkWriteException);
+			}
+
+			throw ex;
+		}
 	}
 
 	private WriteModel<Document> extractAndMapWriteModel(SourceAwareWriteModelHolder it) {
@@ -547,15 +504,93 @@ class DefaultBulkOperations implements BulkOperations {
 	 * @author Christoph Strobl
 	 * @since 2.0
 	 */
-	@Value
-	static class BulkOperationContext {
+	static final class BulkOperationContext {
 
-		@NonNull BulkMode bulkMode;
-		@NonNull Optional<? extends MongoPersistentEntity<?>> entity;
-		@NonNull QueryMapper queryMapper;
-		@NonNull UpdateMapper updateMapper;
-		ApplicationEventPublisher eventPublisher;
-		EntityCallbacks entityCallbacks;
+		private final BulkMode bulkMode;
+		private final Optional<? extends MongoPersistentEntity<?>> entity;
+		private final QueryMapper queryMapper;
+		private final UpdateMapper updateMapper;
+		private final ApplicationEventPublisher eventPublisher;
+		private final EntityCallbacks entityCallbacks;
+
+		BulkOperationContext(BulkOperations.BulkMode bulkMode, Optional<? extends MongoPersistentEntity<?>> entity,
+				QueryMapper queryMapper, UpdateMapper updateMapper, ApplicationEventPublisher eventPublisher,
+				EntityCallbacks entityCallbacks) {
+
+			this.bulkMode = bulkMode;
+			this.entity = entity;
+			this.queryMapper = queryMapper;
+			this.updateMapper = updateMapper;
+			this.eventPublisher = eventPublisher;
+			this.entityCallbacks = entityCallbacks;
+		}
+
+		public BulkMode getBulkMode() {
+			return this.bulkMode;
+		}
+
+		public Optional<? extends MongoPersistentEntity<?>> getEntity() {
+			return this.entity;
+		}
+
+		public QueryMapper getQueryMapper() {
+			return this.queryMapper;
+		}
+
+		public UpdateMapper getUpdateMapper() {
+			return this.updateMapper;
+		}
+
+		public ApplicationEventPublisher getEventPublisher() {
+			return this.eventPublisher;
+		}
+
+		public EntityCallbacks getEntityCallbacks() {
+			return this.entityCallbacks;
+		}
+
+		@Override
+		public boolean equals(Object o) {
+			if (this == o)
+				return true;
+			if (o == null || getClass() != o.getClass())
+				return false;
+
+			BulkOperationContext that = (BulkOperationContext) o;
+
+			if (bulkMode != that.bulkMode)
+				return false;
+			if (!ObjectUtils.nullSafeEquals(this.entity, that.entity)) {
+				return false;
+			}
+			if (!ObjectUtils.nullSafeEquals(this.queryMapper, that.queryMapper)) {
+				return false;
+			}
+			if (!ObjectUtils.nullSafeEquals(this.updateMapper, that.updateMapper)) {
+				return false;
+			}
+			if (!ObjectUtils.nullSafeEquals(this.eventPublisher, that.eventPublisher)) {
+				return false;
+			}
+			return ObjectUtils.nullSafeEquals(this.entityCallbacks, that.entityCallbacks);
+		}
+
+		@Override
+		public int hashCode() {
+			int result = bulkMode != null ? bulkMode.hashCode() : 0;
+			result = 31 * result + ObjectUtils.nullSafeHashCode(entity);
+			result = 31 * result + ObjectUtils.nullSafeHashCode(queryMapper);
+			result = 31 * result + ObjectUtils.nullSafeHashCode(updateMapper);
+			result = 31 * result + ObjectUtils.nullSafeHashCode(eventPublisher);
+			result = 31 * result + ObjectUtils.nullSafeHashCode(entityCallbacks);
+			return result;
+		}
+
+		public String toString() {
+			return "DefaultBulkOperations.BulkOperationContext(bulkMode=" + this.getBulkMode() + ", entity="
+					+ this.getEntity() + ", queryMapper=" + this.getQueryMapper() + ", updateMapper=" + this.getUpdateMapper()
+					+ ", eventPublisher=" + this.getEventPublisher() + ", entityCallbacks=" + this.getEntityCallbacks() + ")";
+		}
 	}
 
 	/**
@@ -564,10 +599,50 @@ class DefaultBulkOperations implements BulkOperations {
 	 * @since 2.2
 	 * @author Christoph Strobl
 	 */
-	@Value
-	private static class SourceAwareWriteModelHolder {
+	private static final class SourceAwareWriteModelHolder {
 
-		Object source;
-		WriteModel<Document> model;
+		private final Object source;
+		private final WriteModel<Document> model;
+
+		SourceAwareWriteModelHolder(Object source, WriteModel<Document> model) {
+
+			this.source = source;
+			this.model = model;
+		}
+
+		public Object getSource() {
+			return this.source;
+		}
+
+		public WriteModel<Document> getModel() {
+			return this.model;
+		}
+
+		@Override
+		public boolean equals(Object o) {
+			if (this == o)
+				return true;
+			if (o == null || getClass() != o.getClass())
+				return false;
+
+			SourceAwareWriteModelHolder that = (SourceAwareWriteModelHolder) o;
+
+			if (!ObjectUtils.nullSafeEquals(this.source, that.source)) {
+				return false;
+			}
+			return ObjectUtils.nullSafeEquals(this.model, that.model);
+		}
+
+		@Override
+		public int hashCode() {
+			int result = ObjectUtils.nullSafeHashCode(model);
+			result = 31 * result + ObjectUtils.nullSafeHashCode(source);
+			return result;
+		}
+
+		public String toString() {
+			return "DefaultBulkOperations.SourceAwareWriteModelHolder(source=" + this.getSource() + ", model="
+					+ this.getModel() + ")";
+		}
 	}
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2011-2020 the original author or authors.
+ * Copyright 2011-2022 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.
@@ -112,10 +112,6 @@ public class DefaultIndexOperations implements IndexOperations {
 		this.type = type;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#ensureIndex(org.springframework.data.mongodb.core.index.IndexDefinition)
-	 */
 	public String ensureIndex(final IndexDefinition indexDefinition) {
 
 		return execute(collection -> {
@@ -150,10 +146,6 @@ public class DefaultIndexOperations implements IndexOperations {
 		return null;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#dropIndex(java.lang.String)
-	 */
 	public void dropIndex(final String name) {
 
 		execute(collection -> {
@@ -163,18 +155,10 @@ public class DefaultIndexOperations implements IndexOperations {
 
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#dropAllIndexes()
-	 */
 	public void dropAllIndexes() {
 		dropIndex("*");
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperations#getIndexInfo()
-	 */
 	public List<IndexInfo> getIndexInfo() {
 
 		return execute(new CollectionCallback<List<IndexInfo>>() {

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 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.
@@ -42,12 +42,8 @@ class DefaultIndexOperationsProvider implements IndexOperationsProvider {
 		this.mapper = mapper;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.IndexOperationsProvider#reactiveIndexOps(java.lang.String)
-	 */
 	@Override
-	public IndexOperations indexOps(String collectionName) {
-		return new DefaultIndexOperations(mongoDbFactory, collectionName, mapper);
+	public IndexOperations indexOps(String collectionName, Class<?> type) {
+		return new DefaultIndexOperations(mongoDbFactory, collectionName, mapper, type);
 	}
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2016-2022 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.
@@ -86,10 +86,6 @@ public class DefaultReactiveIndexOperations implements ReactiveIndexOperations {
 		this.type = type;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.ReactiveIndexOperations#ensureIndex(org.springframework.data.mongodb.core.index.IndexDefinition)
-	 */
 	public Mono<String> ensureIndex(final IndexDefinition indexDefinition) {
 
 		return mongoOperations.execute(collectionName, collection -> {
@@ -119,26 +115,14 @@ public class DefaultReactiveIndexOperations implements ReactiveIndexOperations {
 				.orElse(null);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.ReactiveIndexOperations#dropIndex(java.lang.String)
-	 */
 	public Mono<Void> dropIndex(final String name) {
 		return mongoOperations.execute(collectionName, collection -> collection.dropIndex(name)).then();
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.ReactiveIndexOperations#dropAllIndexes()
-	 */
 	public Mono<Void> dropAllIndexes() {
 		return dropIndex("*");
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.index.ReactiveIndexOperations#getIndexInfo()
-	 */
 	public Flux<IndexInfo> getIndexInfo() {
 
 		return mongoOperations.execute(collectionName, collection -> collection.listIndexes(Document.class)) //

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2020 the original author or authors.
+ * Copyright 2014-2022 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.
@@ -70,19 +70,11 @@ class DefaultScriptOperations implements ScriptOperations {
 		this.mongoOperations = mongoOperations;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ScriptOperations#register(org.springframework.data.mongodb.core.script.ExecutableMongoScript)
-	 */
 	@Override
 	public NamedMongoScript register(ExecutableMongoScript script) {
 		return register(new NamedMongoScript(generateScriptName(), script));
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ScriptOperations#register(org.springframework.data.mongodb.core.script.NamedMongoScript)
-	 */
 	@Override
 	public NamedMongoScript register(NamedMongoScript script) {
 
@@ -92,10 +84,6 @@ class DefaultScriptOperations implements ScriptOperations {
 		return script;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ScriptOperations#execute(org.springframework.data.mongodb.core.script.ExecutableMongoScript, java.lang.Object[])
-	 */
 	@Override
 	public Object execute(final ExecutableMongoScript script, final Object... args) {
 
@@ -115,10 +103,6 @@ class DefaultScriptOperations implements ScriptOperations {
 		});
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ScriptOperations#call(java.lang.String, java.lang.Object[])
-	 */
 	@Override
 	public Object call(final String scriptName, final Object... args) {
 
@@ -135,10 +119,6 @@ class DefaultScriptOperations implements ScriptOperations {
 		});
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ScriptOperations#exists(java.lang.String)
-	 */
 	@Override
 	public boolean exists(String scriptName) {
 
@@ -147,10 +127,6 @@ class DefaultScriptOperations implements ScriptOperations {
 		return mongoOperations.exists(query(where("_id").is(scriptName)), NamedMongoScript.class, SCRIPT_COLLECTION_NAME);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ScriptOperations#getScriptNames()
-	 */
 	@Override
 	public Set<String> getScriptNames() {
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2020 the original author or authors.
+ * Copyright 2015-2022 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.

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2020 the original author or authors.
+ * Copyright 2010-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,7 +23,7 @@ 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
+ * about exception handling. {@link 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.
  *

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016-2020 the original author or authors.
+ * Copyright 2021-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,17 +15,15 @@
  */
 package org.springframework.data.mongodb.core;
 
-import com.mongodb.MongoClientSettings;
-
 /**
- * A factory bean for construction of a {@link MongoClientSettings} instance to be used with the async MongoDB driver.
+ * Encryption algorithms supported by MongoDB Client Side Field Level Encryption.
  *
- * @author Mark Paluch
  * @author Christoph Strobl
- * @since 2.0
- * @deprecated since 3.0 - Use {@link MongoClientSettingsFactoryBean} instead.
+ * @since 3.3
  */
-@Deprecated
-public class ReactiveMongoClientSettingsFactoryBean extends MongoClientSettingsFactoryBean {
+public final class EncryptionAlgorithms {
+
+	public static final String AEAD_AES_256_CBC_HMAC_SHA_512_Deterministic = "AEAD_AES_256_CBC_HMAC_SHA_512-Deterministic";
+	public static final String AEAD_AES_256_CBC_HMAC_SHA_512_Random = "AEAD_AES_256_CBC_HMAC_SHA_512-Random";
 
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 the original author or authors.
+ * Copyright 2018-2022 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.
@@ -15,35 +15,51 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.AccessLevel;
-import lombok.NonNull;
-import lombok.RequiredArgsConstructor;
-
 import java.util.Collection;
+import java.util.Iterator;
 import java.util.Map;
 import java.util.Optional;
 
 import org.bson.Document;
+
 import org.springframework.core.convert.ConversionService;
 import org.springframework.dao.InvalidDataAccessApiUsageException;
+import org.springframework.data.convert.CustomConversions;
 import org.springframework.data.mapping.IdentifierAccessor;
 import org.springframework.data.mapping.MappingException;
 import org.springframework.data.mapping.PersistentEntity;
 import org.springframework.data.mapping.PersistentPropertyAccessor;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mapping.model.ConvertingPropertyAccessor;
+import org.springframework.data.mongodb.core.CollectionOptions.TimeSeriesOptions;
+import org.springframework.data.mongodb.core.convert.MongoConverter;
+import org.springframework.data.mongodb.core.convert.MongoJsonSchemaMapper;
 import org.springframework.data.mongodb.core.convert.MongoWriter;
+import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.mongodb.core.mapping.MongoSimpleTypes;
+import org.springframework.data.mongodb.core.mapping.TimeSeries;
 import org.springframework.data.mongodb.core.query.Collation;
 import org.springframework.data.mongodb.core.query.Criteria;
 import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.mongodb.core.timeseries.Granularity;
+import org.springframework.data.mongodb.core.validation.Validator;
+import org.springframework.data.projection.EntityProjection;
+import org.springframework.data.projection.EntityProjectionIntrospector;
+import org.springframework.data.projection.ProjectionFactory;
+import org.springframework.data.util.Optionals;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
+import org.springframework.util.ObjectUtils;
+import org.springframework.util.StringUtils;
+
+import com.mongodb.client.model.CreateCollectionOptions;
+import com.mongodb.client.model.TimeSeriesGranularity;
+import com.mongodb.client.model.ValidationOptions;
 
 /**
  * Common operations performed on an entity in the context of it's mapping metadata.
@@ -55,21 +71,46 @@ import org.springframework.util.MultiValueMap;
  * @see MongoTemplate
  * @see ReactiveMongoTemplate
  */
-@RequiredArgsConstructor
 class EntityOperations {
 
 	private static final String ID_FIELD = "_id";
 
-	private final @NonNull MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> context;
+	private final MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> context;
+	private final QueryMapper queryMapper;
+
+	private final EntityProjectionIntrospector introspector;
+
+	private final MongoJsonSchemaMapper schemaMapper;
+
+	EntityOperations(MongoConverter converter) {
+		this(converter, new QueryMapper(converter));
+	}
+
+	EntityOperations(MongoConverter converter, QueryMapper queryMapper) {
+		this(converter, converter.getMappingContext(), converter.getCustomConversions(), converter.getProjectionFactory(),
+				queryMapper);
+	}
+
+	EntityOperations(MongoConverter converter,
+			MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> context,
+			CustomConversions conversions, ProjectionFactory projectionFactory, QueryMapper queryMapper) {
+		this.context = context;
+		this.queryMapper = queryMapper;
+		this.introspector = EntityProjectionIntrospector.create(projectionFactory,
+				EntityProjectionIntrospector.ProjectionPredicate.typeHierarchy()
+						.and(((target, underlyingType) -> !conversions.isSimpleType(target))),
+				context);
+		this.schemaMapper = new MongoJsonSchemaMapper(converter);
+	}
 
 	/**
 	 * Creates a new {@link Entity} for the given bean.
 	 *
 	 * @param entity must not be {@literal null}.
-	 * @return
+	 * @return new instance of {@link Entity}.
 	 */
 	@SuppressWarnings({ "unchecked", "rawtypes" })
-	public <T> Entity<T> forEntity(T entity) {
+	<T> Entity<T> forEntity(T entity) {
 
 		Assert.notNull(entity, "Bean must not be null!");
 
@@ -89,10 +130,10 @@ class EntityOperations {
 	 *
 	 * @param entity must not be {@literal null}.
 	 * @param conversionService must not be {@literal null}.
-	 * @return
+	 * @return new instance of {@link AdaptibleEntity}.
 	 */
 	@SuppressWarnings({ "unchecked", "rawtypes" })
-	public <T> AdaptibleEntity<T> forEntity(T entity, ConversionService conversionService) {
+	<T> AdaptibleEntity<T> forEntity(T entity, ConversionService conversionService) {
 
 		Assert.notNull(entity, "Bean must not be null!");
 		Assert.notNull(conversionService, "ConversionService must not be null!");
@@ -108,6 +149,24 @@ class EntityOperations {
 		return AdaptibleMappedEntity.of(entity, context, conversionService);
 	}
 
+	/**
+	 * @param source can be {@literal null}.
+	 * @return {@literal true} if the given value is an {@literal array}, {@link Collection} or {@link Iterator}.
+	 * @since 3.2
+	 */
+	static boolean isCollectionLike(@Nullable Object source) {
+
+		if (source == null) {
+			return false;
+		}
+
+		return ObjectUtils.isArray(source) || source instanceof Collection || source instanceof Iterator;
+	}
+
+	/**
+	 * @param entityClass should not be null.
+	 * @return the {@link MongoPersistentEntity#getCollection() collection name}.
+	 */
 	public String determineCollectionName(@Nullable Class<?> entityClass) {
 
 		if (entityClass == null) {
@@ -138,7 +197,7 @@ class EntityOperations {
 	 * {@code _id} if no identifier property can be found.
 	 *
 	 * @param type must not be {@literal null}.
-	 * @return
+	 * @return never {@literal null}.
 	 */
 	public String getIdPropertyName(Class<?> type) {
 
@@ -206,6 +265,89 @@ class EntityOperations {
 		return UntypedOperations.instance();
 	}
 
+	/**
+	 * Introspect the given {@link Class result type} in the context of the {@link Class entity type} whether the returned
+	 * type is a projection and what property paths are participating in the projection.
+	 *
+	 * @param resultType the type to project on. Must not be {@literal null}.
+	 * @param entityType the source domain type. Must not be {@literal null}.
+	 * @return the introspection result.
+	 * @since 3.4
+	 * @see EntityProjectionIntrospector#introspect(Class, Class)
+	 */
+	public <M, D> EntityProjection<M, D> introspectProjection(Class<M> resultType, Class<D> entityType) {
+		return introspector.introspect(resultType, entityType);
+	}
+
+	/**
+	 * Convert {@link CollectionOptions} to {@link CreateCollectionOptions} using {@link Class entityType} to obtain
+	 * mapping metadata.
+	 *
+	 * @param collectionOptions
+	 * @param entityType
+	 * @return
+	 * @since 3.4
+	 */
+	public CreateCollectionOptions convertToCreateCollectionOptions(@Nullable CollectionOptions collectionOptions,
+			Class<?> entityType) {
+
+		Optional<Collation> collation = Optionals.firstNonEmpty(
+				() -> Optional.ofNullable(collectionOptions).flatMap(CollectionOptions::getCollation),
+				() -> forType(entityType).getCollation());//
+
+		CreateCollectionOptions result = new CreateCollectionOptions();
+		collation.map(Collation::toMongoCollation).ifPresent(result::collation);
+
+		if (collectionOptions == null) {
+			return result;
+		}
+
+		collectionOptions.getCapped().ifPresent(result::capped);
+		collectionOptions.getSize().ifPresent(result::sizeInBytes);
+		collectionOptions.getMaxDocuments().ifPresent(result::maxDocuments);
+		collectionOptions.getCollation().map(Collation::toMongoCollation).ifPresent(result::collation);
+
+		collectionOptions.getValidationOptions().ifPresent(it -> {
+
+			ValidationOptions validationOptions = new ValidationOptions();
+
+			it.getValidationAction().ifPresent(validationOptions::validationAction);
+			it.getValidationLevel().ifPresent(validationOptions::validationLevel);
+
+			it.getValidator().ifPresent(val -> validationOptions.validator(getMappedValidator(val, entityType)));
+
+			result.validationOptions(validationOptions);
+		});
+
+		collectionOptions.getTimeSeriesOptions().map(forType(entityType)::mapTimeSeriesOptions).ifPresent(it -> {
+
+			com.mongodb.client.model.TimeSeriesOptions options = new com.mongodb.client.model.TimeSeriesOptions(
+					it.getTimeField());
+
+			if (StringUtils.hasText(it.getMetaField())) {
+				options.metaField(it.getMetaField());
+			}
+			if (!Granularity.DEFAULT.equals(it.getGranularity())) {
+				options.granularity(TimeSeriesGranularity.valueOf(it.getGranularity().name().toUpperCase()));
+			}
+
+			result.timeSeriesOptions(options);
+		});
+
+		return result;
+	}
+
+	private Document getMappedValidator(Validator validator, Class<?> domainType) {
+
+		Document validationRules = validator.toDocument();
+
+		if (validationRules.containsKey("$jsonSchema")) {
+			return schemaMapper.mapSchema(validationRules, domainType);
+		}
+
+		return queryMapper.getMappedObject(validationRules, context.getPersistentEntity(domainType));
+	}
+
 	/**
 	 * A representation of information about an entity.
 	 *
@@ -342,42 +484,29 @@ class EntityOperations {
 		Number getVersion();
 	}
 
-	@RequiredArgsConstructor
 	private static class UnmappedEntity<T extends Map<String, Object>> implements AdaptibleEntity<T> {
 
 		private final T map;
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getIdPropertyName()
-		 */
+		protected UnmappedEntity(T map) {
+			this.map = map;
+		}
+
 		@Override
 		public String getIdFieldName() {
 			return ID_FIELD;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getId()
-		 */
 		@Override
 		public Object getId() {
 			return map.get(ID_FIELD);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getByIdQuery()
-		 */
 		@Override
 		public Query getByIdQuery() {
 			return Query.query(Criteria.where(ID_FIELD).is(map.get(ID_FIELD)));
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.MutablePersistableSource#populateIdIfNecessary(java.lang.Object)
-		 */
 		@Nullable
 		@Override
 		public T populateIdIfNecessary(@Nullable Object id) {
@@ -387,19 +516,11 @@ class EntityOperations {
 			return map;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getQueryForVersion()
-		 */
 		@Override
 		public Query getQueryForVersion() {
 			throw new MappingException("Cannot query for version on plain Documents!");
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#toMappedDocument(org.springframework.data.mongodb.core.convert.MongoWriter)
-		 */
 		@Override
 		public MappedDocument toMappedDocument(MongoWriter<? super T> writer) {
 			return MappedDocument.of(map instanceof Document //
@@ -407,47 +528,27 @@ class EntityOperations {
 					: new Document(map));
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.MutablePersistableSource#initializeVersionProperty()
-		 */
 		@Override
 		public T initializeVersionProperty() {
 			return map;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.MutablePersistableSource#getVersion()
-		 */
 		@Override
 		@Nullable
 		public Number getVersion() {
 			return null;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.MutablePersistableSource#incrementVersion()
-		 */
 		@Override
 		public T incrementVersion() {
 			return map;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getBean()
-		 */
 		@Override
 		public T getBean() {
 			return map;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.Entity#isNew()
-		 */
 		@Override
 		public boolean isNew() {
 			return map.get(ID_FIELD) != null;
@@ -456,14 +557,10 @@ class EntityOperations {
 
 	private static class SimpleMappedEntity<T extends Map<String, Object>> extends UnmappedEntity<T> {
 
-		SimpleMappedEntity(T map) {
+		protected SimpleMappedEntity(T map) {
 			super(map);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#toMappedDocument(org.springframework.data.mongodb.core.convert.MongoWriter)
-		 */
 		@Override
 		@SuppressWarnings("unchecked")
 		public MappedDocument toMappedDocument(MongoWriter<? super T> writer) {
@@ -479,12 +576,19 @@ class EntityOperations {
 		}
 	}
 
-	@RequiredArgsConstructor(access = AccessLevel.PROTECTED)
 	private static class MappedEntity<T> implements Entity<T> {
 
-		private final @NonNull MongoPersistentEntity<?> entity;
-		private final @NonNull IdentifierAccessor idAccessor;
-		private final @NonNull PersistentPropertyAccessor<T> propertyAccessor;
+		private final MongoPersistentEntity<?> entity;
+		private final IdentifierAccessor idAccessor;
+		private final PersistentPropertyAccessor<T> propertyAccessor;
+
+		protected MappedEntity(MongoPersistentEntity<?> entity, IdentifierAccessor idAccessor,
+				PersistentPropertyAccessor<T> propertyAccessor) {
+
+			this.entity = entity;
+			this.idAccessor = idAccessor;
+			this.propertyAccessor = propertyAccessor;
+		}
 
 		private static <T> MappedEntity<T> of(T bean,
 				MappingContext<? extends MongoPersistentEntity<?>, MongoPersistentProperty> context) {
@@ -496,28 +600,16 @@ class EntityOperations {
 			return new MappedEntity<>(entity, identifierAccessor, propertyAccessor);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getIdPropertyName()
-		 */
 		@Override
 		public String getIdFieldName() {
 			return entity.getRequiredIdProperty().getFieldName();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getId()
-		 */
 		@Override
 		public Object getId() {
 			return idAccessor.getRequiredIdentifier();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getByIdQuery()
-		 */
 		@Override
 		public Query getByIdQuery() {
 
@@ -530,10 +622,6 @@ class EntityOperations {
 			return Query.query(Criteria.where(idProperty.getName()).is(getId()));
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getQueryForVersion(java.lang.Object)
-		 */
 		@Override
 		public Query getQueryForVersion() {
 
@@ -544,10 +632,6 @@ class EntityOperations {
 					.and(versionProperty.getName()).is(getVersion()));
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#toMappedDocument(org.springframework.data.mongodb.core.convert.MongoWriter)
-		 */
 		@Override
 		public MappedDocument toMappedDocument(MongoWriter<? super T> writer) {
 
@@ -563,10 +647,6 @@ class EntityOperations {
 			return MappedDocument.of(document);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.Entity#assertUpdateableIdIfNotSet()
-		 */
 		public void assertUpdateableIdIfNotSet() {
 
 			if (!entity.hasIdProperty()) {
@@ -587,38 +667,22 @@ class EntityOperations {
 			}
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#isVersionedEntity()
-		 */
 		@Override
 		public boolean isVersionedEntity() {
 			return entity.hasVersionProperty();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getVersion()
-		 */
 		@Override
 		@Nullable
 		public Object getVersion() {
 			return propertyAccessor.getProperty(entity.getRequiredVersionProperty());
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.PersistableSource#getBean()
-		 */
 		@Override
 		public T getBean() {
 			return propertyAccessor.getBean();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.Entity#isNew()
-		 */
 		@Override
 		public boolean isNew() {
 			return entity.isNew(propertyAccessor.getBean());
@@ -653,10 +717,6 @@ class EntityOperations {
 					new ConvertingPropertyAccessor<>(propertyAccessor, conversionService));
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.AdaptibleEntity#populateIdIfNecessary(java.lang.Object)
-		 */
 		@Nullable
 		@Override
 		public T populateIdIfNecessary(@Nullable Object id) {
@@ -678,10 +738,6 @@ class EntityOperations {
 			return propertyAccessor.getBean();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.MappedEntity#getVersion()
-		 */
 		@Override
 		@Nullable
 		public Number getVersion() {
@@ -691,10 +747,6 @@ class EntityOperations {
 			return propertyAccessor.getProperty(versionProperty, Number.class);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.AdaptibleEntity#initializeVersionProperty()
-		 */
 		@Override
 		public T initializeVersionProperty() {
 
@@ -709,10 +761,6 @@ class EntityOperations {
 			return propertyAccessor.getBean();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.AdaptibleEntity#incrementVersion()
-		 */
 		@Override
 		public T incrementVersion() {
 
@@ -749,35 +797,46 @@ class EntityOperations {
 		 * @return
 		 */
 		Optional<Collation> getCollation(Query query);
+
+		/**
+		 * Derive the applicable {@link CollectionOptions} for the given type.
+		 *
+		 * @return never {@literal null}.
+		 * @since 3.3
+		 */
+		CollectionOptions getCollectionOptions();
+
+		/**
+		 * Map the fields of a given {@link TimeSeriesOptions} against the target domain type to consider potentially
+		 * annotated field names.
+		 *
+		 * @param options must not be {@literal null}.
+		 * @return never {@literal null}.
+		 * @since 3.3
+		 */
+		TimeSeriesOptions mapTimeSeriesOptions(TimeSeriesOptions options);
 	}
 
 	/**
 	 * {@link TypedOperations} for generic entities that are not represented with {@link PersistentEntity} (e.g. custom
 	 * conversions).
 	 */
-	@RequiredArgsConstructor
 	enum UntypedOperations implements TypedOperations<Object> {
 
 		INSTANCE;
 
+		UntypedOperations() {}
+
 		@SuppressWarnings({ "unchecked", "rawtypes" })
 		public static <T> TypedOperations<T> instance() {
 			return (TypedOperations) INSTANCE;
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.TypedOperations#getCollation()
-		 */
 		@Override
 		public Optional<Collation> getCollation() {
 			return Optional.empty();
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.TypedOperations#getCollation(org.springframework.data.mongodb.core.query.Query)
-		 */
 		@Override
 		public Optional<Collation> getCollation(Query query) {
 
@@ -787,6 +846,16 @@ class EntityOperations {
 
 			return query.getCollation();
 		}
+
+		@Override
+		public CollectionOptions getCollectionOptions() {
+			return CollectionOptions.empty();
+		}
+
+		@Override
+		public TimeSeriesOptions mapTimeSeriesOptions(TimeSeriesOptions options) {
+			return options;
+		}
 	}
 
 	/**
@@ -794,24 +863,19 @@ class EntityOperations {
 	 *
 	 * @param <T>
 	 */
-	@RequiredArgsConstructor
 	static class TypedEntityOperations<T> implements TypedOperations<T> {
 
-		private final @NonNull MongoPersistentEntity<T> entity;
+		private final MongoPersistentEntity<T> entity;
+
+		protected TypedEntityOperations(MongoPersistentEntity<T> entity) {
+			this.entity = entity;
+		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.TypedOperations#getCollation()
-		 */
 		@Override
 		public Optional<Collation> getCollation() {
 			return Optional.ofNullable(entity.getCollation());
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.EntityOperations.TypedOperations#getCollation(org.springframework.data.mongodb.core.query.Query)
-		 */
 		@Override
 		public Optional<Collation> getCollation(Query query) {
 
@@ -821,6 +885,58 @@ class EntityOperations {
 
 			return Optional.ofNullable(entity.getCollation());
 		}
+
+		@Override
+		public CollectionOptions getCollectionOptions() {
+
+			CollectionOptions collectionOptions = CollectionOptions.empty();
+			if (entity.hasCollation()) {
+				collectionOptions = collectionOptions.collation(entity.getCollation());
+			}
+
+			if (entity.isAnnotationPresent(TimeSeries.class)) {
+
+				TimeSeries timeSeries = entity.getRequiredAnnotation(TimeSeries.class);
+
+				if (entity.getPersistentProperty(timeSeries.timeField()) == null) {
+					throw new MappingException(String.format("Time series field '%s' does not exist in type %s",
+							timeSeries.timeField(), entity.getName()));
+				}
+
+				TimeSeriesOptions options = TimeSeriesOptions.timeSeries(timeSeries.timeField());
+				if (StringUtils.hasText(timeSeries.metaField())) {
+
+					if (entity.getPersistentProperty(timeSeries.metaField()) == null) {
+						throw new MappingException(
+								String.format("Meta field '%s' does not exist in type %s", timeSeries.metaField(), entity.getName()));
+					}
+
+					options = options.metaField(timeSeries.metaField());
+				}
+				if (!Granularity.DEFAULT.equals(timeSeries.granularity())) {
+					options = options.granularity(timeSeries.granularity());
+				}
+				collectionOptions = collectionOptions.timeSeries(options);
+			}
+
+			return collectionOptions;
+		}
+
+		@Override
+		public TimeSeriesOptions mapTimeSeriesOptions(TimeSeriesOptions source) {
+
+			TimeSeriesOptions target = TimeSeriesOptions.timeSeries(mappedNameOrDefault(source.getTimeField()));
+
+			if (StringUtils.hasText(source.getMetaField())) {
+				target = target.metaField(mappedNameOrDefault(source.getMetaField()));
+			}
+			return target.granularity(source.getGranularity());
+		}
+
+		private String mappedNameOrDefault(String name) {
+			MongoPersistentProperty persistentProperty = entity.getPersistentProperty(name);
+			return persistentProperty != null ? persistentProperty.getFieldName() : name;
+		}
 	}
 
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.
@@ -15,9 +15,10 @@
  */
 package org.springframework.data.mongodb.core;
 
+import java.util.stream.Stream;
+
 import org.springframework.data.mongodb.core.aggregation.Aggregation;
 import org.springframework.data.mongodb.core.aggregation.AggregationResults;
-import org.springframework.data.util.CloseableIterator;
 
 /**
  * {@link ExecutableAggregationOperation} allows creation and execution of MongoDB aggregation operations in a fluent
@@ -88,12 +89,12 @@ public interface ExecutableAggregationOperation {
 
 		/**
 		 * Apply pipeline operations as specified and stream all matching elements. <br />
-		 * Returns a {@link CloseableIterator} that wraps the a Mongo DB {@link com.mongodb.Cursor}
+		 * Returns a {@link Stream} that wraps the Mongo DB {@link com.mongodb.client.FindIterable}
 		 *
-		 * @return a {@link CloseableIterator} that wraps the a Mongo DB {@link com.mongodb.Cursor} that needs to be closed.
-		 *         Never {@literal null}.
+		 * @return the result {@link Stream}, containing mapped objects, needing to be closed once fully processed (e.g.
+		 *         through a try-with-resources clause).
 		 */
-		CloseableIterator<T> stream();
+		Stream<T> stream();
 	}
 
 	/**

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,16 +15,11 @@
  */
 package org.springframework.data.mongodb.core;
 
-import lombok.AccessLevel;
-import lombok.NonNull;
-import lombok.RequiredArgsConstructor;
-import lombok.experimental.FieldDefaults;
+import java.util.stream.Stream;
 
 import org.springframework.data.mongodb.core.aggregation.Aggregation;
 import org.springframework.data.mongodb.core.aggregation.AggregationResults;
 import org.springframework.data.mongodb.core.aggregation.TypedAggregation;
-import org.springframework.data.util.CloseableIterator;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 
@@ -35,15 +30,14 @@ import org.springframework.util.StringUtils;
  * @author Mark Paluch
  * @since 2.0
  */
-@RequiredArgsConstructor
 class ExecutableAggregationOperationSupport implements ExecutableAggregationOperation {
 
-	private final @NonNull MongoTemplate template;
+	private final MongoTemplate template;
+
+	ExecutableAggregationOperationSupport(MongoTemplate template) {
+		this.template = template;
+	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.mongodb.core.ExecutableAggregationOperation#aggregateAndReturn(java.lang.Class)
-	 */
 	@Override
 	public <T> ExecutableAggregation<T> aggregateAndReturn(Class<T> domainType) {
 
@@ -56,20 +50,22 @@ class ExecutableAggregationOperationSupport implements ExecutableAggregationOper
 	 * @author Christoph Strobl
 	 * @since 2.0
 	 */
-	@RequiredArgsConstructor
-	@FieldDefaults(level = AccessLevel.PRIVATE, makeFinal = true)
 	static class ExecutableAggregationSupport<T>
 			implements AggregationWithAggregation<T>, ExecutableAggregation<T>, TerminatingAggregation<T> {
 
-		@NonNull MongoTemplate template;
-		@NonNull Class<T> domainType;
-		@Nullable Aggregation aggregation;
-		@Nullable String collection;
+		private final MongoTemplate template;
+		private final Class<T> domainType;
+		private final Aggregation aggregation;
+		private final String collection;
+
+		public ExecutableAggregationSupport(MongoTemplate template, Class<T> domainType, Aggregation aggregation,
+				String collection) {
+			this.template = template;
+			this.domainType = domainType;
+			this.aggregation = aggregation;
+			this.collection = collection;
+		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.ExecutableAggregationOperation.AggregationWithCollection#inCollection(java.lang.String)
-		 */
 		@Override
 		public AggregationWithAggregation<T> inCollection(String collection) {
 
@@ -78,10 +74,6 @@ class ExecutableAggregationOperationSupport implements ExecutableAggregationOper
 			return new ExecutableAggregationSupport<>(template, domainType, aggregation, collection);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.ExecutableAggregationOperation.AggregationWithAggregation#by(org.springframework.data.mongodb.core.aggregation.Aggregation)
-		 */
 		@Override
 		public TerminatingAggregation<T> by(Aggregation aggregation) {
 
@@ -90,21 +82,13 @@ class ExecutableAggregationOperationSupport implements ExecutableAggregationOper
 			return new ExecutableAggregationSupport<>(template, domainType, aggregation, collection);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.ExecutableAggregationOperation.TerminatingAggregation#all()
-		 */
 		@Override
 		public AggregationResults<T> all() {
 			return template.aggregate(aggregation, getCollectionName(aggregation), domainType);
 		}
 
-		/*
-		 * (non-Javadoc)
-		 * @see org.springframework.data.mongodb.core.ExecutableAggregationOperation.TerminatingAggregation#stream()
-		 */
 		@Override
-		public CloseableIterator<T> stream() {
+		public Stream<T> stream() {
 			return template.aggregateStream(aggregation, getCollectionName(aggregation), domainType);
 		}
 

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-2022 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.
@@ -118,13 +118,18 @@ public interface ExecutableFindOperation {
 		/**
 		 * Stream all matching elements.
 		 *
-		 * @return a {@link Stream} that wraps the a Mongo DB {@link com.mongodb.Cursor} that needs to be closed. Never
-		 *         {@literal null}.
+		 * @return the result {@link Stream}, containing mapped objects, needing to be closed once fully processed (e.g.
+		 *         through a try-with-resources clause).
 		 */
 		Stream<T> stream();
 
 		/**
 		 * Get the number of matching elements.
+		 * <br />
+		 * This method uses an {@link com.mongodb.client.MongoCollection#countDocuments(org.bson.conversions.Bson, com.mongodb.client.model.CountOptions) aggregation
+		 * execution} even for empty {@link Query queries} which may have an impact on performance, but guarantees shard,
+		 * session and transaction compliance. In case an inaccurate count satisfies the applications needs use
+		 * {@link MongoOperations#estimatedCount(String)} for empty queries instead.
 		 *
 		 * @return total number of matching elements.
 		 */