org.eclipse.persistence.internal.descriptors.changetracking.AggregateObjectChangeListener Maven / Gradle / Ivy
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/*
* Copyright (c) 1998, 2023 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 v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.internal.descriptors.changetracking;
import java.beans.PropertyChangeEvent;
/**
*
* Purpose: Define a listener for object change tracking.
*
*
* Description: Listener is notified on a PropertyChangeEvent from the object it belongs to.
*
*
* Responsibilities: Set the flag to true when there is any change in the object.
*
*/
public class AggregateObjectChangeListener extends ObjectChangeListener {
protected ObjectChangeListener parentListener;
protected String parentAttributeName;
/**
* INTERNAL:
* Create a ObjectChangeListener
*/
public AggregateObjectChangeListener(ObjectChangeListener parentListener, String parentAttribute) {
super();
this.parentListener = parentListener;
this.parentAttributeName = parentAttribute;
}
/**
* PUBLIC:
* This method turns marks the object as changed.
*/
@Override
public void internalPropertyChange(PropertyChangeEvent evt) {
hasChanges = true;
this.parentListener.internalPropertyChange(new PropertyChangeEvent(evt.getSource(), this.parentAttributeName, evt.getOldValue(), evt.getNewValue()));
}
}