libjava/javax/naming/event/NamingEvent.java

   1 /* Copyright (C) 2001  Free Software Foundation
   2
   3    This file is part of libgcj.
   4
   5 This software is copyrighted work licensed under the terms of the
   6 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   7 details.  */
   8
   9 package javax.naming.event;
  10 import javax.naming.*;
  11 import java.util.EventObject;
  12
  13 /**
  14  * @author Warren Levy <warrenl@redhat.com>
  15  * @date June 5, 2001
  16  */
  17
  18 public class NamingEvent extends EventObject
  19 {
  20   public static final int OBJECT_ADDED = 0;
  21   public static final int OBJECT_REMOVED = 1;
  22   public static final int OBJECT_RENAMED = 2;
  23   public static final int OBJECT_CHANGED = 3;
  24
  25   // Serialized fields.
  26   protected Object changeInfo;
  27   protected int type;
  28   protected Binding oldBinding;
  29   protected Binding newBinding;
  30
  31   public NamingEvent(EventContext source, int type, Binding newBd,
  32                      Binding oldBd, Object changeInfo)
  33   {
  34     super(source);
  35     this.type = type;
  36     this.oldBinding = oldBd;
  37     this.newBinding = newBd;
  38     this.changeInfo = changeInfo;
  39     // FIXME: for OBJECT_ADDED, newBd must not be null;
  40     // FIXME: for OBJECT_CHANGED, newBd and oldBd must not be null;
  41     // FIXME: for OBJECT_RENAMED, one of newBd or oldBd may be null if newBd or
  42     // FIXME: oldBd is outside of the scope for which listener has registered.
  43     // FIXME: namingExceptionThrown() is called for the listener in question.
  44   }
  45
  46   public int getType()
  47   {
  48     return type;
  49   }
  50
  51   public EventContext getEventContext()
  52   {
  53     return (EventContext) getSource();
  54   }
  55
  56   public Binding getOldBinding()
  57   {
  58     return oldBinding;
  59   }
  60
  61   public Binding getNewBinding()
  62   {
  63     return newBinding;
  64   }
  65
  66   public Object getChangeInfo()
  67   {
  68     return changeInfo;
  69   }
  70
  71   public void dispatch(NamingListener listener)
  72   {
  73     switch (type)
  74       {
  75         case OBJECT_ADDED:
  76           ((NamespaceChangeListener) listener).objectAdded(this);
  77           break;
  78         case OBJECT_REMOVED:
  79           ((NamespaceChangeListener) listener).objectRemoved(this);
  80           break;
  81         case OBJECT_RENAMED:
  82           ((NamespaceChangeListener) listener).objectRenamed(this);
  83           break;
  84         case OBJECT_CHANGED:
  85           ((ObjectChangeListener) listener).objectChanged(this);
  86           break;
  87       }
  88   }
  89 }