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 }