org.eclipse.persistence.internal.sessions.DirectToFieldChangeRecord Maven / Gradle / Ivy
Show all versions of eclipselink Show documentation
/*******************************************************************************
* 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;
/**
*
* Purpose: 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;
}
}