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

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

Method Summary

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: