151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved. 351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is free software; you can redistribute it and/or modify it 651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * under the terms of the GNU General Public License version 2 only, as 751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * published by the Free Software Foundation. Oracle designates this 851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * particular file as subject to the "Classpath" exception as provided 951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * by Oracle in the LICENSE file that accompanied this code. 1051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is distributed in the hope that it will be useful, but WITHOUT 1251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * version 2 for more details (a copy is included in the LICENSE file that 1551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * accompanied this code). 1651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * You should have received a copy of the GNU General Public License version 1851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2 along with this work; if not, write to the Free Software Foundation, 1951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or visit www.oracle.com if you need additional information or have any 2351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * questions. 2451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 2551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipackage java.util.prefs; 2751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskiimport java.io.NotSerializableException; 2951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 3051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/** 3151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * An event emitted by a <tt>Preferences</tt> node to indicate that 3251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * a child of that node has been added or removed.<p> 3351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Note, that although NodeChangeEvent inherits Serializable interface from 3551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * java.util.EventObject, it is not intended to be Serializable. Appropriate 3651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * serialization methods are implemented to throw NotSerializableException. 3751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 3851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @author Josh Bloch 3951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see Preferences 4051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see NodeChangeListener 4151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @see PreferenceChangeEvent 4251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @since 1.4 4351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @serial exclude 4451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 4551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipublic class NodeChangeEvent extends java.util.EventObject { 4751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 4851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * The node that was added or removed. 4951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 5051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @serial 5151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 5251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private Preferences child; 5351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 5451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 5551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Constructs a new <code>NodeChangeEvent</code> instance. 5651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 5751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param parent The parent of the node that was added or removed. 5851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param child The node that was added or removed. 5951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 6051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public NodeChangeEvent(Preferences parent, Preferences child) { 6151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski super(parent); 6251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this.child = child; 6351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 6551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 6651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Returns the parent of the node that was added or removed. 6751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 6851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return The parent Preferences node whose child was added or removed 6951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 7051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public Preferences getParent() { 7151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return (Preferences) getSource(); 7251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 7551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Returns the node that was added or removed. 7651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 7751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return The node that was added or removed. 7851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 7951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public Preferences getChild() { 8051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return child; 8151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 8251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 8351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 8451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Throws NotSerializableException, since NodeChangeEvent objects are not 8551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * intended to be serializable. 8651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 8751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private void writeObject(java.io.ObjectOutputStream out) 8851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throws NotSerializableException { 8951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throw new NotSerializableException("Not serializable."); 9051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 9151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 9251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 9351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Throws NotSerializableException, since NodeChangeEvent objects are not 9451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * intended to be serializable. 9551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 9651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private void readObject(java.io.ObjectInputStream in) 9751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throws NotSerializableException { 9851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throw new NotSerializableException("Not serializable."); 9951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 10151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // Defined so that this class isn't flagged as a potential problem when 10251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski // searches for missing serialVersionUID fields are done. 10351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private static final long serialVersionUID = 8068949086596572957L; 10451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski} 105