/*
* @(#)NodeChangeEvent.java 1.7 05/11/17
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package java.util.prefs;
import java.io.NotSerializableException;
/**
* An event emitted by a <tt>Preferences</tt> node to indicate that
* a child of that node has been added or removed.<p>
*
* Note, that although NodeChangeEvent inherits Serializable interface from
* java.util.EventObject, it is not intended to be Serializable. Appropriate
* serialization methods are implemented to throw NotSerializableException.
*
* @author Josh Bloch
* @version $I$, $G$
* @see Preferences
* @see NodeChangeListener
* @see PreferenceChangeEvent
* @since 1.4
* @serial exclude
*/
public class NodeChangeEvent extends java.util.EventObject {
/**
* The node that was added or removed.
*
* @serial
*/
private Preferences child;
/**
* Constructs a new <code>NodeChangeEvent</code> instance.
*
* @param parent The parent of the node that was added or removed.
* @param child The node that was added or removed.
*/
public NodeChangeEvent(Preferences parent, Preferences child) {
super(parent);
this.child = child;
}
/**
* Returns the parent of the node that was added or removed.
*
* @return The parent Preferences node whose child was added or removed
*/
public Preferences getParent() {
return (Preferences) getSource();
}
/**
* Returns the node that was added or removed.
*
* @return The node that was added or removed.
*/
public Preferences getChild() {
return child;
}
/**
* Throws NotSerializableException, since NodeChangeEvent objects are not
* intended to be serializable.
*/
private void writeObject(java.io.ObjectOutputStream out)
throws NotSerializableException {
throw new NotSerializableException("Not serializable.");
}
/**
* Throws NotSerializableException, since NodeChangeEvent objects are not
* intended to be serializable.
*/
private void readObject(java.io.ObjectInputStream in)
throws NotSerializableException {
throw new NotSerializableException("Not serializable.");
}
// Defined so that this class isn't flagged as a potential problem when
// searches for missing serialVersionUID fields are done.
private static final long serialVersionUID = 8068949086596572957L;
}