001 /* NamingEvent.java -- 002 Copyright (C) 2001, 2004, 2006 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package javax.naming.event; 040 041 import java.util.EventObject; 042 043 import javax.naming.Binding; 044 045 /** 046 * @author Warren Levy (warrenl@redhat.com) 047 * @date June 5, 2001 048 */ 049 public class NamingEvent extends EventObject 050 { 051 private static final long serialVersionUID = - 7126752885365133499L; 052 053 public static final int OBJECT_ADDED = 0; 054 public static final int OBJECT_REMOVED = 1; 055 public static final int OBJECT_RENAMED = 2; 056 public static final int OBJECT_CHANGED = 3; 057 058 // Serialized fields. 059 protected Object changeInfo; 060 protected int type; 061 protected Binding oldBinding; 062 protected Binding newBinding; 063 064 public NamingEvent(EventContext source, int type, Binding newBd, 065 Binding oldBd, Object changeInfo) 066 { 067 super(source); 068 this.type = type; 069 this.oldBinding = oldBd; 070 this.newBinding = newBd; 071 this.changeInfo = changeInfo; 072 // FIXME: for OBJECT_ADDED, newBd must not be null; 073 // FIXME: for OBJECT_CHANGED, newBd and oldBd must not be null; 074 // FIXME: for OBJECT_RENAMED, one of newBd or oldBd may be null if newBd or 075 // FIXME: oldBd is outside of the scope for which listener has registered. 076 // FIXME: namingExceptionThrown() is called for the listener in question. 077 } 078 079 public int getType() 080 { 081 return type; 082 } 083 084 public EventContext getEventContext() 085 { 086 return (EventContext) getSource(); 087 } 088 089 public Binding getOldBinding() 090 { 091 return oldBinding; 092 } 093 094 public Binding getNewBinding() 095 { 096 return newBinding; 097 } 098 099 public Object getChangeInfo() 100 { 101 return changeInfo; 102 } 103 104 public void dispatch(NamingListener listener) 105 { 106 switch (type) 107 { 108 case OBJECT_ADDED: 109 ((NamespaceChangeListener) listener).objectAdded(this); 110 break; 111 case OBJECT_REMOVED: 112 ((NamespaceChangeListener) listener).objectRemoved(this); 113 break; 114 case OBJECT_RENAMED: 115 ((NamespaceChangeListener) listener).objectRenamed(this); 116 break; 117 case OBJECT_CHANGED: 118 ((ObjectChangeListener) listener).objectChanged(this); 119 break; 120 } 121 } 122 }