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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package java.util.prefs;

import java.io.NotSerializableException;

An event emitted by a Preferences node to indicate that a child of that node has been added or removed.

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
See Also:
Preferences
NodeChangeListener
PreferenceChangeEvent
Since:
  1.4
@serial
 exclude/**
 * An event emitted by a {@code Preferences} 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
 * @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
/**
     * The node that was added or removed.
     *
     * @serial
     */
    private Preferences child;

    
Constructs a new NodeChangeEvent instance. 
Params:
parent –  The parent of the node that was added or removed.
child –   The node that was added or removed./**
     * Constructs a new {@code NodeChangeEvent} 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.
Returns:
 The parent Preferences node whose child was added or removed/**
     * 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.
Returns:
 The node that was added or removed./**
     * 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.
/**
     * 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.
/**
     * 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;
}