Module org.eclipse.persistence.core

Package org.eclipse.persistence.mappings.structures

Class ArrayCollectionMappingHelper

java.lang.Object

org.eclipse.persistence.mappings.structures.ArrayCollectionMappingHelper

public class ArrayCollectionMappingHelper
extends Object

Helper class to consolidate all the heinous comparing and merging code for the Array collection mappings.

See Also:

ArrayCollectionMapping

Constructor Summary

Constructors

Constructor	Description
ArrayCollectionMappingHelper(ArrayCollectionMapping mapping)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected boolean	compareElements(Object element1, Object element2, AbstractSession session)	Convenience method.
protected boolean	compareElementsForChange(Object element1, Object element2, AbstractSession session)	Convenience method.
ChangeRecord	compareForChange(Object clone, Object backup, ObjectChangeSet owner, AbstractSession session)	INTERNAL: Build and return the change record that results from comparing the two collection attributes.
boolean	compareObjects(Object object1, Object object2, AbstractSession session)	INTERNAL: Compare the attributes belonging to this mapping for the objects.
DatabaseMapping	getDatabaseMapping()	INTERNAL: Return the mapping, casted a bit more generally.
ArrayCollectionMapping	getMapping()	INTERNAL: Return the mapping.
void	mergeChangesIntoObject(Object target, ChangeRecord changeRecord, Object source, MergeManager mergeManager, AbstractSession targetSession)	INTERNAL: Merge changes from the source to the target object.
void	mergeIntoObject(Object target, boolean isTargetUnInitialized, Object source, MergeManager mergeManager, AbstractSession targetSession)	INTERNAL: Merge changes from the source to the target object.
void	simpleAddToCollectionChangeRecord(Object referenceKey, Object changeSetToAdd, ObjectChangeSet changeSet, AbstractSession session)	ADVANCED: This method is used to add an object to a collection once the changeSet is applied.
void	simpleRemoveFromCollectionChangeRecord(Object referenceKey, Object changeSetToRemove, ObjectChangeSet changeSet, AbstractSession session)	ADVANCED: This method is used to remove an object from a collection once the changeSet is applied.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayCollectionMappingHelper

public ArrayCollectionMappingHelper(ArrayCollectionMapping mapping)

Constructor.

Method Detail

compareElements

protected boolean compareElements(Object element1,
                                  Object element2,
                                  AbstractSession session)

Convenience method. Check for null values before delegating to the mapping.

compareElementsForChange

protected boolean compareElementsForChange(Object element1,
                                           Object element2,
                                           AbstractSession session)

Convenience method. Check for null values before delegating to the mapping.

getMapping

public ArrayCollectionMapping getMapping()

INTERNAL: Return the mapping.

compareForChange

public ChangeRecord compareForChange(Object clone,
                                     Object backup,
                                     ObjectChangeSet owner,
                                     AbstractSession session)

INTERNAL: Build and return the change record that results from comparing the two collection attributes.

compareObjects

public boolean compareObjects(Object object1,
                              Object object2,
                              AbstractSession session)

INTERNAL: Compare the attributes belonging to this mapping for the objects.

mergeChangesIntoObject

public void mergeChangesIntoObject(Object target,
                                   ChangeRecord changeRecord,
                                   Object source,
                                   MergeManager mergeManager,
                                   AbstractSession targetSession)

INTERNAL: Merge changes from the source to the target object.

mergeIntoObject

public void mergeIntoObject(Object target,
                            boolean isTargetUnInitialized,
                            Object source,
                            MergeManager mergeManager,
                            AbstractSession targetSession)

INTERNAL: Merge changes from the source to the target object. Simply replace the entire target collection.

simpleAddToCollectionChangeRecord

public void simpleAddToCollectionChangeRecord(Object referenceKey,
                                              Object changeSetToAdd,
                                              ObjectChangeSet changeSet,
                                              AbstractSession session)

ADVANCED: This method is used to add an object to a collection once the changeSet is applied. The referenceKey parameter should only be used for direct Maps.

simpleRemoveFromCollectionChangeRecord

public void simpleRemoveFromCollectionChangeRecord(Object referenceKey,
                                                   Object changeSetToRemove,
                                                   ObjectChangeSet changeSet,
                                                   AbstractSession session)

ADVANCED: This method is used to remove an object from a collection once the changeSet is applied. The referenceKey parameter should only be used for direct Maps.

getDatabaseMapping

public DatabaseMapping getDatabaseMapping()

INTERNAL: Return the mapping, casted a bit more generally.