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1: /* NodeChangeEvent - ObjectEvent fired when a Preference node is added/removed 2: Copyright (C) 2001 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package java.util.prefs; 39: 40: import java.util.EventObject; 41: 42: /** 43: * ObjectEvent fired when a Preference node is added/removed. 44: * This event is only generated when a new subnode is added or a subnode is 45: * removed from a preference node. Changes in the entries of a preference node 46: * are indicated with a <code>PreferenceChangeEvent</code>. 47: * 48: * @since 1.4 49: * @author Mark Wielaard (mark@klomp.org) 50: */ 51: public class NodeChangeEvent extends EventObject { 52: 53: private static final long serialVersionUID =8068949086596572957L; 54: 55: /** 56: * The sub node that was added or removed. 57: * Defined transient just like <code>EventObject.source</code> since 58: * this object should be serializable, but Preferences is in general not 59: * serializable. 60: */ 61: private final transient Preferences child; 62: 63: /** 64: * Creates a new NodeChangeEvent. 65: * 66: * @param parentNode The source preference node from which a subnode was 67: * added or removed 68: * @param childNode The preference node that was added or removed 69: */ 70: public NodeChangeEvent(Preferences parentNode, Preferences childNode) { 71: super(parentNode); 72: child = childNode; 73: } 74: 75: /** 76: * Returns the source parent preference node from which a subnode was 77: * added or removed. 78: */ 79: public Preferences getParent() { 80: return (Preferences) source; 81: } 82: 83: /** 84: * Returns the child preference subnode that was added or removed. 85: * To see wether it is still a valid preference node one has to call 86: * <code>event.getChild().nodeExists("")</code>. 87: */ 88: public Preferences getChild() { 89: return child; 90: } 91: }
GNU Classpath (0.20) |