org.springframework.data.mongodb.core.aggregation

Class TypeBasedAggregationOperationContext

java.lang.Object

org.springframework.data.mongodb.core.aggregation.TypeBasedAggregationOperationContext

All Implemented Interfaces:

AggregationOperationContext

public class TypeBasedAggregationOperationContext
extends Object
implements AggregationOperationContext

AggregationOperationContext aware of a particular type and a MappingContext to potentially translate property references into document field names.

Since:

1.3

Author:

Oliver Gierke

Constructor Summary

Constructors

Constructor and Description
TypeBasedAggregationOperationContext(Class<?> type, MappingContext<? extends MongoPersistentEntity<?>,MongoPersistentProperty> mappingContext, QueryMapper mapper) Creates a new TypeBasedAggregationOperationContext for the given type, MappingContext and QueryMapper.

Method Summary

Modifier and Type	Method and Description
com.mongodb.DBObject	getMappedObject(com.mongodb.DBObject dbObject) Returns the mapped DBObject, potentially converting the source considering mapping metadata etc.
org.springframework.data.mongodb.core.aggregation.ExposedFields.FieldReference	getReference(Field field) Returns a ExposedFields.FieldReference for the given field or null if the context does not expose the given field.
org.springframework.data.mongodb.core.aggregation.ExposedFields.FieldReference	getReference(String name) Returns the ExposedFields.FieldReference for the field with the given name or null if the context does not expose a field with the given name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TypeBasedAggregationOperationContext

public TypeBasedAggregationOperationContext(Class<?> type,
                                            MappingContext<? extends MongoPersistentEntity<?>,MongoPersistentProperty> mappingContext,
                                            QueryMapper mapper)

Creates a new TypeBasedAggregationOperationContext for the given type, MappingContext and QueryMapper.

Parameters:

type - must not be null.

mappingContext - must not be null.

mapper - must not be null.

Method Detail

getMappedObject

public com.mongodb.DBObject getMappedObject(com.mongodb.DBObject dbObject)

Description copied from interface: AggregationOperationContext

Returns the mapped DBObject, potentially converting the source considering mapping metadata etc.

Specified by:

getMappedObject in interface AggregationOperationContext

Parameters:

dbObject - will never be null.

Returns:

must not be null.

getReference

public org.springframework.data.mongodb.core.aggregation.ExposedFields.FieldReference getReference(Field field)

Description copied from interface: AggregationOperationContext

Returns a ExposedFields.FieldReference for the given field or null if the context does not expose the given field.

Specified by:

getReference in interface AggregationOperationContext

Parameters:

field - must not be null.

Returns:

getReference

public org.springframework.data.mongodb.core.aggregation.ExposedFields.FieldReference getReference(String name)

Description copied from interface: AggregationOperationContext

Returns the ExposedFields.FieldReference for the field with the given name or null if the context does not expose a field with the given name.

Specified by:

getReference in interface AggregationOperationContext

Parameters:

name - must not be null or empty.

Returns: