spring-projects/spring-data-mongodbGitHubLast refreshed Oct 3, 2026
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The first argument is the name of the collection to run the group operation over, the second is a fluent API that specifies properties of the group operation via a GroupBy class.
org.springframework.data.mongodb.core.mapreduce declares nothing by this name.
+ The actual aggregate operation is run by the aggregate method of the MongoTemplate, which takes the desired output class as a parameter.
MongoTemplate has an aggregate method
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The projection can be extended with additional fields through a fluent API by using the and(String) method and aliased by using the as(String) method.
ProjectionOperation has an and method
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To create output fields in buckets, bucket operations can use AggregationExpression through andOutput() and xref:mongodb/aggregation-framework.adoc#mongo.aggregation.projection.expressions[SpEL expressions] through andOutputExpression().
BucketOperation has an andOutput method
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To create output fields in buckets, bucket operations can use AggregationExpression through andOutput() and xref:mongodb/aggregation-framework.adoc#mongo.aggregation.projection.expressions[SpEL expressions] through andOutputExpression().
BucketOperation has an andOutputExpression method
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To create output fields in buckets, bucket operations can use AggregationExpression through andOutput() and xref:mongodb/aggregation-framework.adoc#mongo.aggregation.projection.expressions[SpEL expressions] through andOutputExpression().
BucketAutoOperation has an andOutput method
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To create output fields in buckets, bucket operations can use AggregationExpression through andOutput() and xref:mongodb/aggregation-framework.adoc#mongo.aggregation.projection.expressions[SpEL expressions] through andOutputExpression().
BucketAutoOperation has an andOutputExpression method
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You can customize it with multiple aggregation pipelines by using the and() method.
FacetOperation has an and method
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We support the use of SpEL expressions in projection expressions through the andExpression method of the ProjectionOperation and BucketOperation classes.
ProjectionOperation has an andExpression method
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Methods such as (Reactive)MongoOperations#getCollection return native MongoDB Java Driver gateway objects (such as MongoCollection) that themselves offer dedicated methods for ClientSession.
MongoOperations has a getCollection method
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Methods such as (Reactive)MongoOperations#getCollection return native MongoDB Java Driver gateway objects (such as MongoCollection) that themselves offer dedicated methods for ClientSession.
ReactiveMongoOperations has a getCollection method
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Nevertheless, one may override MongoTransactionManager#doCommit(MongoTransactionObject) to implement a https://docs.mongodb.com/manual/core/transactions/#retry-commit-operation[Retry Commit Operation] behavior as outlined in the MongoDB reference manual.
MongoTransactionManager has a doCommit method
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Once MongoTemplate detects an active transaction, all exposed count() methods are converted and delegated to the aggregation framework using $match and $count operators, preserving Query settings, such as collation.
MongoTemplate has a count method
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Queries using Criteria.near(…) and Criteria.nearSphere(…) must be rewritten to Criteria.within(…) respective Criteria.withinSphere(…).
Criteria has a near method
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Queries using Criteria.near(…) and Criteria.nearSphere(…) must be rewritten to Criteria.within(…) respective Criteria.withinSphere(…).
Criteria has a nearSphere method
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Queries using Criteria.near(…) and Criteria.nearSphere(…) must be rewritten to Criteria.within(…) respective Criteria.withinSphere(…).
Criteria has a within method
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Queries using Criteria.near(…) and Criteria.nearSphere(…) must be rewritten to Criteria.within(…) respective Criteria.withinSphere(…).
Criteria has a withinSphere method
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To intercept an object before it goes through the conversion process (which turns your domain object into a org.bson.Document), you can register a subclass of AbstractMongoEventListener that overrides the onBeforeConvert method.
AbstractMongoEventListener has an onBeforeConvert method
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To intercept an object before it goes into the database, you can register a subclass of javadoc:org.springframework.data.mongodb.core.mapping.event.AbstractMongoEventListener[] that overrides the onBeforeSave method.
AbstractMongoEventListener has an onBeforeSave method
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Called in MongoTemplateinsert, insertList, and save operations before the object is converted to a Document by a MongoConverter.
MongoTemplate depends on MongoConverter
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Use a static import of JsonSchemaProperty to make the syntax slightly more compact and to get entry points such as string(…).
JsonSchemaProperty has a string method
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MongoJsonSchemaCreator.property(…) allows defining additional details such as nested document types that should be considered when rendering the schema.
MongoJsonSchemaCreator has a property method
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Unless explicitly configured, an instance of MappingMongoConverter is created by default when you create a MongoTemplate.
MongoTemplate depends on MappingMongoConverter
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MongoDB's native JSR-310 support can be enabled through MongoConverterConfigurationAdapter.useNativeDriverJavaTimeCodecs().
MongoConverterConfigurationAdapter has an useNativeDriverJavaTimeCodecs method
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AbstractMongoClientConfiguration creates a MongoTemplate instance and registers it with the container under the name mongoTemplate.
AbstractMongoClientConfiguration depends on MongoTemplate
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+ Using a MappingMongoConverter#setMapKeyDotReplacement allowed circumvent some of the limitations when storing Map structures by substituting dots on write with another character.
MappingMongoConverter has setMapKeyDotReplacement
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+ To allow dots in Map structures please set preserveMapKeys on the MappingMongoConverter.
MappingMongoConverter has preserveMapKeys
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The EncryptionKeyResolver uses an EncryptionContext providing access to the property allowing for dynamic DEK resolution.
EncryptionKeyResolver depends on EncryptionContext
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SearchIndexOperationsProvider implemented by MongoTemplate are the entrypoint to SearchIndexOperations offering various methods for managing vector indexes.
SearchIndexOperationsProvider implemented by MongoTemplate are the entrypoint to SearchIndexOperations offering various methods for managing vector indexes.
SearchIndexOperationsProvider depends on SearchIndexOperations
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The actual status of a search index can be obtained via SearchIndexOperations#status(...).
SearchIndexOperations has a status method
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Capped collections can be created with MongoOperations.createCollection.
MongoOperations has createCollection
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The Message#getBody() is converted to the requested domain type.
Message has a getBody method
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The javadoc:org.springframework.data.mongodb.core.MongoTemplate[] and its javadoc:org.springframework.data.mongodb.core.ReactiveMongoTemplate[reactive] counterpart class, located in the org.springframework.data.mongodb.core package, is the central class of Spring's MongoDB support and provides a rich feature set for interacting with the database.
MongoTemplate is in org.springframework.data.mongodb.core
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The javadoc:org.springframework.data.mongodb.core.MongoTemplate[] and its javadoc:org.springframework.data.mongodb.core.ReactiveMongoTemplate[reactive] counterpart class, located in the org.springframework.data.mongodb.core package, is the central class of Spring's MongoDB support and provides a rich feature set for interacting with the database.
ReactiveMongoTemplate is in org.springframework.data.mongodb.core
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The javadoc:org.springframework.data.mongodb.core.MongoTemplate[] class implements the interface javadoc:org.springframework.data.mongodb.core.MongoOperations[].
MongoTemplate implements MongoOperations
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has a find method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has a findAndModify method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has a findAndReplace method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has a findOne method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has an insert method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has a remove method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has a save method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has an update method
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For example, you can find methods such as find, findAndModify, findAndReplace, findOne, insert, remove, save, update, and updateMulti.
MongoOperations has an updateMulti method
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<T> T *execute* (Class<?> entityClass, CollectionCallback<T> action): Runs the given CollectionCallback for the entity collection of the specified class.
MongoTemplate has execute
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The entry points (insert(…), find(…), update(…), and others) follow a natural naming schema based on the operation to be run.
FluentMongoOperations has an insert method
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The entry points (insert(…), find(…), update(…), and others) follow a natural naming schema based on the operation to be run.
FluentMongoOperations has an update method
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You can access these operations by calling the indexOps method and passing in either the collection name or the java.lang.Class of your entity (the collection name is derived from the .class, either by name or from annotation metadata).
MongoTemplate has an indexOps method
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The IndexOperations interface has the getIndexInfo method that returns a list of IndexInfo objects.
IndexOperations has a getIndexInfo method
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The IndexOperations interface has the getIndexInfo method that returns a list of IndexInfo objects.
IndexOperations depends on IndexInfo
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You can use the @TimeSeries#expireAfter option to have MongoDB automatically remove expired buckets.
TimeSeries has expireAfter
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By setting MongoTemplate#useEstimatedCount(...) to true _MongoTemplate#count(...)_ operations, that use an empty filter query, will be delegated to estimatedCount, as long as there is no transaction active and the template is not bound to a xref:mongodb/client-session-transactions.adoc[session].
MongoTemplate has an useEstimatedCount method
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void *save* (Object objectToSave): Save the object to the default collection.
MongoTemplate has save
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void *insert* (Object objectToSave): Insert the object to the default collection.
MongoTemplate has insert
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For updates, you can update the first document found by using MongoOperations.updateFirst or you can update all documents that were found to match the query by using the MongoOperations.updateMulti method or all on the fluent API.
MongoOperations has an updateFirst method
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For updates, you can update the first document found by using MongoOperations.updateFirst or you can update all documents that were found to match the query by using the MongoOperations.updateMulti method or all on the fluent API.
MongoTemplate provides four findAndModify overloaded methods that take Query and Update classes and converts from Document to your POJOs:
MongoTemplate has a findAndModify method
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<1> Use the fluent update API with the domain type given for mapping the query and deriving the collection name or just use MongoOperations#findAndReplace.
MongoOperations has findAndReplace
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To remove a Document without version check use MongoOperations#remove(Query,...) instead of MongoOperations#remove(Object).
MongoOperations has remove
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Spring Data MongoDB provides a javadoc:org.springframework.data.mongodb.gridfs.GridFsOperations[] and javadoc:org.springframework.data.mongodb.gridfs.ReactiveGridFsOperations[] interface as well as the corresponding implementation, GridFsTemplate and ReactiveGridFsTemplate, to let you interact with the filesystem.
GridFsTemplate implements GridFsOperations
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Spring Data MongoDB provides a javadoc:org.springframework.data.mongodb.gridfs.GridFsOperations[] and javadoc:org.springframework.data.mongodb.gridfs.ReactiveGridFsOperations[] interface as well as the corresponding implementation, GridFsTemplate and ReactiveGridFsTemplate, to let you interact with the filesystem.
Spring Data MongoDB provides a javadoc:org.springframework.data.mongodb.gridfs.GridFsOperations[] and javadoc:org.springframework.data.mongodb.gridfs.ReactiveGridFsOperations[] interface as well as the corresponding implementation, GridFsTemplate and ReactiveGridFsTemplate, to let you interact with the filesystem.
GridFsOperations is a contract
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Spring Data MongoDB provides a javadoc:org.springframework.data.mongodb.gridfs.GridFsOperations[] and javadoc:org.springframework.data.mongodb.gridfs.ReactiveGridFsOperations[] interface as well as the corresponding implementation, GridFsTemplate and ReactiveGridFsTemplate, to let you interact with the filesystem.
ReactiveGridFsOperations is a contract
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The store(…) operations take an InputStream, a filename, and (optionally) metadata information about the file to store.
GridFsOperations has a store method
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The metadata can be an arbitrary object, which will be marshaled by the MongoConverter configured with the GridFsTemplate.
GridFsTemplate depends on MongoConverter
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The store(…) operations take an Publisher<DataBuffer>, a filename, and (optionally) metadata information about the file to store.
ReactiveGridFsOperations has a store method
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The metadata can be an arbitrary object, which will be marshaled by the MongoConverter configured with the ReactiveGridFsTemplate.
ReactiveGridFsTemplate depends on MongoConverter
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You can read files from the filesystem through either the find(…) or the getResources(…) methods.
GridFsOperations has a find method
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You can read files from the filesystem through either the find(…) or the getResources(…) methods.
GridFsOperations has a getResources method
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It provides static factory methods to encapsulate default metadata fields (such as whereFilename() and whereContentType()) or a custom one through whereMetaData().
GridFsCriteria has a whereFilename method
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It provides static factory methods to encapsulate default metadata fields (such as whereFilename() and whereContentType()) or a custom one through whereMetaData().
GridFsCriteria has a whereContentType method
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It provides static factory methods to encapsulate default metadata fields (such as whereFilename() and whereContentType()) or a custom one through whereMetaData().
GridFsCriteria has a whereMetaData method
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Earlier, we saw how to retrieve a single document by using the findOne and findById methods on MongoTemplate.
MongoTemplate has a findOne method
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Earlier, we saw how to retrieve a single document by using the findOne and findById methods on MongoTemplate.
MongoTemplate has a findById method
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The criteria are specified by using a Criteria object that has a static factory method named where to instantiate a new Criteria object.
Criteria has a where method
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To let you do so, MongoOperations provides geoNear(…) methods that take a NearQuery as an argument (as well as the already familiar entity type and collection), as shown in the following example:
MongoOperations has a geoNear method
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The org.springframework.data.mongodb.core.geo package contains types such as GeoJsonPoint, GeoJsonPolygon, and others.
GeoJsonPoint is in org.springframework.data.mongodb.core.geo
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The org.springframework.data.mongodb.core.geo package contains types such as GeoJsonPoint, GeoJsonPolygon, and others.
GeoJsonPolygon is in org.springframework.data.mongodb.core.geo
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To sort results by relevance according to the weights use TextQuery.sortByScore.
TextQuery has sortByScore
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<2> Use TextQuery.includeScore() to include the calculated relevance in the resulting Document.
TextQuery has an includeScore method
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TextCriteria.matching takes the provided term as is.
TextCriteria has matching
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84 rules from 14 docs
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