Package org.eclipse.persistence.internal.sessions

Class ObjectReferenceChangeRecord

java.lang.Object

org.eclipse.persistence.internal.sessions.ChangeRecord

org.eclipse.persistence.internal.sessions.ObjectReferenceChangeRecord

All Implemented Interfaces:

Serializable, ChangeRecord, ObjectReferenceChangeRecord

public class ObjectReferenceChangeRecord
extends ChangeRecord
implements ObjectReferenceChangeRecord

Purpose: To record the changes for an attribute that references a single Object

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected ObjectChangeSet	newValue	This is the object change set that the attribute points to.
protected Object	oldValue	A reference to the old value must also be stored.

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

attribute, mapping, owner

Constructor Summary

Constructors

Constructor	Description
ObjectReferenceChangeRecord()	INTERNAL: This default constructor.
ObjectReferenceChangeRecord(ObjectChangeSet owner)	INTERNAL: This Constructor is used to create an ObjectReferenceChangeRecord With an owner

Method Summary

Modifier and Type	Method	Description
ObjectChangeSet	getNewValue()	ADVANCED: Returns the new reference for this object
Object	getOldValue()	Return the old value of the object reference.
void	mergeRecord(ChangeRecord mergeFromRecord, UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet)	INTERNAL: This method will be used to merge one record into another
void	setNewValue(ObjectChangeSet newValue)	This method sets the value of the change to be made.
void	setNewValue(ObjectChangeSet newValue)	This method sets the value of the change to be made.
void	setOldValue(Object oldValue)	Set the old value of the object reference.
void	updateReferences(UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet)	INTERNAL: This method will be used to update the objectsChangeSets references

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 Detail

newValue

protected ObjectChangeSet newValue

This is the object change set that the attribute points to.

oldValue

protected transient Object oldValue

A reference to the old value must also be stored. This is only required for the commit and must never be serialized.

Constructor Detail

ObjectReferenceChangeRecord

public ObjectReferenceChangeRecord()

INTERNAL: This default constructor.

ObjectReferenceChangeRecord

public ObjectReferenceChangeRecord(ObjectChangeSet owner)

INTERNAL: This Constructor is used to create an ObjectReferenceChangeRecord With an owner

Method Detail

getNewValue

public ObjectChangeSet getNewValue()

ADVANCED: Returns the new reference for this object

Specified by:

getNewValue in interface ObjectReferenceChangeRecord

Returns:

org.eclipse.persistence.sessions.changesets.ObjectChangeSet

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

setNewValue

public void setNewValue(ObjectChangeSet newValue)

This method sets the value of the change to be made.

Parameters:

newValue - ObjectChangeSet

setNewValue

public void setNewValue(ObjectChangeSet newValue)

This method sets the value of the change to be made.

getOldValue

public Object getOldValue()

Return the old value of the object reference. This is used during the commit for private-owned references.

Specified by:

getOldValue in interface ChangeRecord

Specified by:

getOldValue in interface ObjectReferenceChangeRecord

setOldValue

public void setOldValue(Object oldValue)

Set the old value of the object reference. This is used during the commit for private-owned references.

updateReferences

public void updateReferences(UnitOfWorkChangeSet mergeToChangeSet,
                             UnitOfWorkChangeSet mergeFromChangeSet)

INTERNAL: This method will be used to update the objectsChangeSets references

Specified by:

updateReferences in class ChangeRecord