org.springframework.data.mongodb.core.convert
Class UpdateMapper

java.lang.Object
  org.springframework.data.mongodb.core.convert.QueryMapper
      org.springframework.data.mongodb.core.convert.UpdateMapper

public class UpdateMapper
extends QueryMapper

A subclass of QueryMapper that retains type information on the mongo types.

Author:

Thomas Darimont, Oliver Gierke, Christoph Strobl

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.data.mongodb.core.convert.QueryMapper

QueryMapper.Field, QueryMapper.MetadataBackedField

Constructor Summary

UpdateMapper(MongoConverter converter)
Creates a new UpdateMapper using the given MongoConverter.

Method Summary

protected QueryMapper.Field	createPropertyField(MongoPersistentEntity<?> entity, String key, MappingContext<? extends MongoPersistentEntity<?>,MongoPersistentProperty> mappingContext)
protected Object	delegateConvertToMongoType(Object source, MongoPersistentEntity<?> entity) Converts the given source object to a mongo type retaining the original type information of the source type on the mongo type.
protected Map.Entry<String,Object>	getMappedObjectForField(QueryMapper.Field field, Object rawValue) Extracts the mapped object value for given field out of rawValue taking nested Keywords into account
protected boolean	isAssociationConversionNecessary(QueryMapper.Field documentField, Object value) Returns whether the given QueryMapper.Field represents an association reference that together with the given value requires conversion to a DBRef object.

Methods inherited from class org.springframework.data.mongodb.core.convert.QueryMapper

convertAssociation, convertAssociation, convertId, getMappedKeyword, getMappedKeyword, getMappedObject, getMappedValue, isKeyword, isNestedKeyword

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateMapper

public UpdateMapper(MongoConverter converter)

Creates a new UpdateMapper using the given MongoConverter.

Parameters:

converter - must not be null.

Method Detail

delegateConvertToMongoType

protected Object delegateConvertToMongoType(Object source,
                                            MongoPersistentEntity<?> entity)

Converts the given source object to a mongo type retaining the original type information of the source type on the mongo type.

Overrides:

delegateConvertToMongoType in class QueryMapper

Returns:

the converted mongo type or null if source is null

See Also:

QueryMapper.delegateConvertToMongoType(java.lang.Object, org.springframework.data.mongodb.core.mapping.MongoPersistentEntity)

getMappedObjectForField

protected Map.Entry<String,Object> getMappedObjectForField(QueryMapper.Field field,
                                                           Object rawValue)

Description copied from class: QueryMapper

Extracts the mapped object value for given field out of rawValue taking nested Keywords into account

Overrides:

getMappedObjectForField in class QueryMapper

Returns:

isAssociationConversionNecessary

protected boolean isAssociationConversionNecessary(QueryMapper.Field documentField,
                                                   Object value)

Description copied from class: QueryMapper

Returns whether the given QueryMapper.Field represents an association reference that together with the given value requires conversion to a DBRef object. We check whether the type of the given value is compatible with the type of the given document field in order to deal with potential query field exclusions, since MongoDB uses the int 0 as an indicator for an excluded field.

Overrides:

isAssociationConversionNecessary in class QueryMapper

Returns:

createPropertyField

protected QueryMapper.Field createPropertyField(MongoPersistentEntity<?> entity,
                                                String key,
                                                MappingContext<? extends MongoPersistentEntity<?>,MongoPersistentProperty> mappingContext)

Overrides:

createPropertyField in class QueryMapper

Returns: