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, org.eclipse.persistence.internal.sessions.AbstractSession session)	Convenience method.
protected boolean	compareElementsForChange(Object element1, Object element2, org.eclipse.persistence.internal.sessions.AbstractSession session)	Convenience method.
org.eclipse.persistence.internal.sessions.ChangeRecord	compareForChange(Object clone, Object backup, org.eclipse.persistence.internal.sessions.ObjectChangeSet owner, org.eclipse.persistence.internal.sessions.AbstractSession session)	INTERNAL: Build and return the change record that results from comparing the two collection attributes.
boolean	compareObjects(Object object1, Object object2, org.eclipse.persistence.internal.sessions.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, org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord, Object source, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)	INTERNAL: Merge changes from the source to the target object.
void	mergeIntoObject(Object target, boolean isTargetUnInitialized, Object source, org.eclipse.persistence.internal.sessions.MergeManager mergeManager, org.eclipse.persistence.internal.sessions.AbstractSession targetSession)	INTERNAL: Merge changes from the source to the target object.
void	simpleAddToCollectionChangeRecord(Object referenceKey, Object changeSetToAdd, org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet, org.eclipse.persistence.internal.sessions.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, org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet, org.eclipse.persistence.internal.sessions.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 Details

ArrayCollectionMappingHelper

public ArrayCollectionMappingHelper(ArrayCollectionMapping mapping)

Constructor.

Method Details

compareElements

protected boolean compareElements(Object element1,
 Object element2,
 org.eclipse.persistence.internal.sessions.AbstractSession session)

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

compareElementsForChange

protected boolean compareElementsForChange(Object element1,
 Object element2,
 org.eclipse.persistence.internal.sessions.AbstractSession session)

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

getMapping

public ArrayCollectionMapping getMapping()

INTERNAL: Return the mapping.

compareForChange

public org.eclipse.persistence.internal.sessions.ChangeRecord compareForChange(Object clone,
 Object backup,
 org.eclipse.persistence.internal.sessions.ObjectChangeSet owner,
 org.eclipse.persistence.internal.sessions.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,
 org.eclipse.persistence.internal.sessions.AbstractSession session)

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

mergeChangesIntoObject

public void mergeChangesIntoObject(Object target,
 org.eclipse.persistence.internal.sessions.ChangeRecord changeRecord,
 Object source,
 org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
 org.eclipse.persistence.internal.sessions.AbstractSession targetSession)

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

mergeIntoObject

public void mergeIntoObject(Object target,
 boolean isTargetUnInitialized,
 Object source,
 org.eclipse.persistence.internal.sessions.MergeManager mergeManager,
 org.eclipse.persistence.internal.sessions.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,
 org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet,
 org.eclipse.persistence.internal.sessions.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,
 org.eclipse.persistence.internal.sessions.ObjectChangeSet changeSet,
 org.eclipse.persistence.internal.sessions.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.