oracle.toplink.essentials.internal.sessions.ObjectReferenceChangeRecord Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
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// Copyright (c) 1998, 2007, Oracle. All rights reserved.
package oracle.toplink.essentials.internal.sessions;
/**
*
* Purpose: To record the changes for an attribute that references a single Object
* @see RelatedClasses prototype.changeset.CollectionChangeRecord,prototype.changeset.SingleObjectChangeRecord
*/
public class ObjectReferenceChangeRecord extends ChangeRecord implements oracle.toplink.essentials.changesets.ObjectReferenceChangeRecord {
/** This is the object change set that the attribute points to. */
protected ObjectChangeSet newValue;
/** A reference to the old value must also be sotred. This is only required for the commit and must never be serialized. */
protected transient Object oldValue;
/**
* INTERNAL:
* This default constructor is reference internally by SDK XML project to mapp this class
*/
public ObjectReferenceChangeRecord() {
super();
}
/**
* INTERNAL:
* This Constructor is used to create an ObjectReferenceChangeRecord With an owner
* @param owner prototype.changeset.ObjectChangeSet
*/
public ObjectReferenceChangeRecord(ObjectChangeSet owner) {
this.owner = owner;
}
/**
* ADVANCED:
* Returns the new reference for this object
* @return prototype.changeset.ObjectChangeSet
*/
public oracle.toplink.essentials.changesets.ObjectChangeSet getNewValue() {
return newValue;
}
/**
* INTERNAL:
* This method will be used to merge one record into another
*/
public void mergeRecord(ChangeRecord mergeFromRecord, UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet) {
ObjectChangeSet localChangeSet = mergeToChangeSet.findOrIntegrateObjectChangeSet((ObjectChangeSet)((ObjectReferenceChangeRecord)mergeFromRecord).getNewValue(), mergeFromChangeSet);
this.newValue = localChangeSet;
}
/**
* This method sets the value of the change to be made.
* @param newValue prototype.changeset.ObjectChangeSet
*/
public void setNewValue(oracle.toplink.essentials.changesets.ObjectChangeSet newValue) {
this.newValue = (ObjectChangeSet)newValue;
}
/**
* This method sets the value of the change to be made.
* @param newValue prototype.changeset.ObjectChangeSet
*/
public void setNewValue(ObjectChangeSet newValue) {
this.newValue = newValue;
}
/**
* Return the old value of the object reference.
* This is used during the commit for private-owned references.
*/
public Object getOldValue() {
return oldValue;
}
/**
* Set the old value of the object reference.
* This is used during the commit for private-owned references.
*/
public void setOldValue(Object oldValue) {
this.oldValue = oldValue;
}
/**
* INTERNAL:
* This method will be used to update the objectsChangeSets references
*/
public void updateReferences(UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet) {
this.setNewValue(mergeToChangeSet.findOrIntegrateObjectChangeSet((ObjectChangeSet)this.getNewValue(), mergeFromChangeSet));
}
}