content: /*
   * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * 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
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * 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).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  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
   * @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;
  }
  