/******************************************************************************* | |
* Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved. | |
* This program and the accompanying materials are made available under the | |
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation from Oracle TopLink | |
******************************************************************************/ | |
package org.eclipse.persistence.internal.sessions; | |
/** | |
* <p> | |
* <b>Purpose</b>: To record the changes for attributes that can be represented as DirectToField | |
*/ | |
public class DirectToFieldChangeRecord extends ChangeRecord implements org.eclipse.persistence.sessions.changesets.DirectToFieldChangeRecord { | |
protected Object newValue; | |
protected transient Object oldValue; | |
/** | |
* This default constructor. | |
*/ | |
public DirectToFieldChangeRecord() { | |
super(); | |
} | |
/** | |
* This constructor returns a changeRecord representing the DirectToField mapping. | |
*/ | |
public DirectToFieldChangeRecord(ObjectChangeSet owner) { | |
this.owner = owner; | |
} | |
/** | |
* ADVANCED: | |
* Returns the new value assigned during the change. | |
*/ | |
public Object getNewValue() { | |
return newValue; | |
} | |
/** | |
* INTERNAL: | |
* This method will be used to merge one record into another. | |
*/ | |
public void mergeRecord(ChangeRecord mergeFromRecord, UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet) { | |
this.newValue = ((DirectToFieldChangeRecord)mergeFromRecord).getNewValue(); | |
} | |
/** | |
* ADVANCED: | |
* Sets the new value assigned during the change. | |
*/ | |
public void setNewValue(Object newValue) { | |
this.newValue = newValue; | |
} | |
/** | |
* INTERNAL: | |
* used by the record to update the new value ignores the value in the default implementation | |
*/ | |
public void updateChangeRecordWithNewValue(Object newValue) { | |
setNewValue(newValue); | |
} | |
/** | |
* INTERNAL: | |
* This method will be used to update the objectsChangeSets references | |
*/ | |
public void updateReferences(UnitOfWorkChangeSet mergeToChangeSet, UnitOfWorkChangeSet mergeFromChangeSet) { | |
} | |
/** | |
* ADVANCED: | |
* Return the old value of the attribute represented by this ChangeRecord. | |
*/ | |
public Object getOldValue() { | |
return oldValue; | |
} | |
/** | |
* INTERNAL: | |
* Set the old value of the attribute represented by this ChangeRecord. | |
*/ | |
public void setOldValue(Object oldValue) { | |
this.oldValue = oldValue; | |
} | |
} |