org.eclipse.persistence.mappings.foundation

public Interface MapComponentMapping

Known Direct Subinterfaces: org.eclipse.persistence.mappings.foundation.MapKeyMapping
Known Direct Implementers: org.eclipse.persistence.mappings.ManyToManyMapping, org.eclipse.persistence.mappings.AggregateCollectionMapping, org.eclipse.persistence.mappings.DirectMapMapping, org.eclipse.persistence.mappings.OneToManyMapping
Imports: org.eclipse.persistence.internal.identitymaps.CacheKey, org.eclipse.persistence.internal.sessions.AbstractRecord, .AbstractSession, org.eclipse.persistence.queries.ObjectBuildingQuery

A MapComponentMapping is any mapping that can be used as the key or the value in a mapping that uses a MappedKeyMapContainerPolicy. This interface is generally implemented by mappings that provide the value in a mapping to a Map. Mappings that provide the key generally implement sub-interface MapKeyMapping

Author: tware
See Also: org.eclipse.persistence.internal.queries.MappedKeyMapContainerPolicy, org.eclipse.persistence.mappings.foundation.MapKeyMapping, org.eclipse.persistence.mappings.DirectCollectionMapping, org.eclipse.persistence.mappings.AggregateCollectionMapping, org.eclipse.persistence.mappings.OneToManyMapping, org.eclipse.persistence.mappings.UnidirectionalOneToManyMapping, org.eclipse.persistence.mappings.ManyToManyMapping

Method Summary

Modifier and Type	Method and Description
public Object	clone() INTERNAL Called when cloning the container policy.
public Object	createMapComponentFromRow(AbstractRecord dbRow, ObjectBuildingQuery query, CacheKey parentCacheKey, AbstractSession session, boolean isTargetProtected) INTERNAL Called when a DatabaseMapping is used to map the key in a collection.

Method Detail

clone	back to summary
public Object clone() INTERNAL Called when cloning the container policy.

createMapComponentFromRow	back to summary
public Object createMapComponentFromRow(AbstractRecord dbRow, ObjectBuildingQuery query, CacheKey parentCacheKey, AbstractSession session, boolean isTargetProtected) INTERNAL Called when a DatabaseMapping is used to map the key in a collection. Returns the key.