Source for javax.naming.event.NamingEvent

   1: /* NamingEvent.java --
   2:    Copyright (C) 2001, 2004  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: 
  39: package javax.naming.event;
  40: 
  41: import java.util.EventObject;
  42: 
  43: import javax.naming.Binding;
  44:  
  45: /**
  46:  * @author Warren Levy (warrenl@redhat.com)
  47:  * @date June 5, 2001
  48:  */
  49: public class NamingEvent extends EventObject
  50: {
  51:   public static final int OBJECT_ADDED = 0;
  52:   public static final int OBJECT_REMOVED = 1;
  53:   public static final int OBJECT_RENAMED = 2;
  54:   public static final int OBJECT_CHANGED = 3;
  55: 
  56:   // Serialized fields.
  57:   protected Object changeInfo;
  58:   protected int type;
  59:   protected Binding oldBinding;
  60:   protected Binding newBinding;
  61: 
  62:   public NamingEvent(EventContext source, int type, Binding newBd,
  63:                Binding oldBd, Object changeInfo)
  64:   {
  65:     super(source);
  66:     this.type = type;
  67:     this.oldBinding = oldBd;
  68:     this.newBinding = newBd;
  69:     this.changeInfo = changeInfo;
  70:     // FIXME: for OBJECT_ADDED, newBd must not be null;
  71:     // FIXME: for OBJECT_CHANGED, newBd and oldBd must not be null;
  72:     // FIXME: for OBJECT_RENAMED, one of newBd or oldBd may be null if newBd or
  73:     // FIXME: oldBd is outside of the scope for which listener has registered.
  74:     // FIXME: namingExceptionThrown() is called for the listener in question.
  75:   }
  76: 
  77:   public int getType()
  78:   {
  79:     return type;
  80:   }
  81: 
  82:   public EventContext getEventContext()
  83:   {
  84:     return (EventContext) getSource();
  85:   }
  86: 
  87:   public Binding getOldBinding()
  88:   {
  89:     return oldBinding;
  90:   }
  91: 
  92:   public Binding getNewBinding()
  93:   {
  94:     return newBinding;
  95:   }
  96: 
  97:   public Object getChangeInfo()
  98:   {
  99:     return changeInfo;
 100:   }
 101: 
 102:   public void dispatch(NamingListener listener)
 103:   {
 104:     switch (type)
 105:       {
 106:         case OBJECT_ADDED:
 107:       ((NamespaceChangeListener) listener).objectAdded(this);
 108:       break;
 109:         case OBJECT_REMOVED:
 110:       ((NamespaceChangeListener) listener).objectRemoved(this);
 111:       break;
 112:         case OBJECT_RENAMED:
 113:       ((NamespaceChangeListener) listener).objectRenamed(this);
 114:       break;
 115:         case OBJECT_CHANGED:
 116:       ((ObjectChangeListener) listener).objectChanged(this);
 117:       break;
 118:       }
 119:   }
 120: }