Module org.eclipse.persistence.core

Package org.eclipse.persistence.internal.sessions

Class AggregateChangeRecord

java.lang.Object

org.eclipse.persistence.internal.sessions.ChangeRecord

org.eclipse.persistence.internal.sessions.AggregateChangeRecord

All Implemented Interfaces:

Serializable, AggregateChangeRecord, ChangeRecord

public class AggregateChangeRecord
extends ChangeRecord
implements AggregateChangeRecord

This change Record is used to record the changes for AggregateObjectMapping.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected ObjectChangeSet	changedObject
protected static final String	NULL
protected Object	oldValue

Fields inherited from class org.eclipse.persistence.internal.sessions.ChangeRecord

attribute, mapping, owner

Constructor Summary

Constructors

Constructor	Description
AggregateChangeRecord()	This default constructor.
AggregateChangeRecord(ObjectChangeSet owner)	This constructor returns an ChangeRecord representing an AggregateMapping.

Method Summary

Modifier and Type	Method	Description
ObjectChangeSet	getChangedObject()	ADVANCED: This method is used to return the ObjectChangeSet representing the changed Aggregate.
Object	getOldValue()	ADVANCED: If the owning UnitOfWork has shouldChangeRecordKeepOldValue set to true, then return the old value of the attribute represented by this ChangeRecord.
void	mergeRecord(ChangeRecord mergeFromRecord, UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet)	INTERNAL: This method will be used to merge one record into another
void	setChangedObject(ObjectChangeSet newValue)	INTERNAL: This method is used to set the changed value or values.
void	setOldValue(Object oldValue)	INTERNAL: Set the old value of the attribute represented by this ChangeRecord.
void	updateReferences(UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet)	INTERNAL: This method will be used to update the objectsChangeSets references If this is an aggregate change set then there is no need to update the reference as the ChangeSet has no identity outside of this record Check to see if it exists here already to prevent us from creating a little extra garbage.

Methods inherited from class org.eclipse.persistence.internal.sessions.ChangeRecord

getAttribute, getMapping, getOwner, prepareForSynchronization, setAttribute, setMapping, setOwner, toString, updateChangeRecordWithNewValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.sessions.changesets.ChangeRecord

getAttribute, getOwner

Field Details

changedObject

protected ObjectChangeSet changedObject

oldValue

protected transient Object oldValue

NULL

protected static final String NULL

See Also:

• Constant Field Values

Constructor Details

AggregateChangeRecord

public AggregateChangeRecord()

This default constructor.

AggregateChangeRecord

public AggregateChangeRecord(ObjectChangeSet owner)

This constructor returns an ChangeRecord representing an AggregateMapping.

Method Details

getChangedObject

public ObjectChangeSet getChangedObject()

ADVANCED: This method is used to return the ObjectChangeSet representing the changed Aggregate.

Specified by:

getChangedObject in interface AggregateChangeRecord

mergeRecord

public void mergeRecord(ChangeRecord mergeFromRecord,
 UnitOfWorkChangeSet mergeToChangeSet,
 UnitOfWorkChangeSet mergeFromChangeSet)

INTERNAL: This method will be used to merge one record into another

Specified by:

mergeRecord in class ChangeRecord

setChangedObject

public void setChangedObject(ObjectChangeSet newValue)

INTERNAL: This method is used to set the changed value or values.

updateReferences

public void updateReferences(UnitOfWorkChangeSet mergeToChangeSet,
 UnitOfWorkChangeSet mergeFromChangeSet)

INTERNAL: This method will be used to update the objectsChangeSets references If this is an aggregate change set then there is no need to update the reference as the ChangeSet has no identity outside of this record Check to see if it exists here already to prevent us from creating a little extra garbage.

Specified by:

updateReferences in class ChangeRecord

getOldValue

public Object getOldValue()

ADVANCED: If the owning UnitOfWork has shouldChangeRecordKeepOldValue set to true, then return the old value of the attribute represented by this ChangeRecord.

Specified by:

getOldValue in interface AggregateChangeRecord

Specified by:

getOldValue in interface ChangeRecord

setOldValue

public void setOldValue(Object oldValue)

INTERNAL: Set the old value of the attribute represented by this ChangeRecord.