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Java > Open Source Codes > org > objectweb > tribe > messages > PingMessage


1 /**
2  * Tribe: Group communication library.
3  * Copyright (C) 2004 French National Institute For Research In Computer
4  * Science And Control (INRIA).
5  * Contact: tribe@objectweb.org
6  *
7  * This library is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU Lesser General Public License as published by the
9  * Free Software Foundation; either version 2.1 of the License, or any later
10  * version.
11  *
12  * This library is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
15  * for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with this library; if not, write to the Free Software Foundation,
19  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20  *
21  * Initial developer(s): Emmanuel Cecchet.
22  * Contributor(s): ______________________.
23  */
24
25 package org.objectweb.tribe.messages;
26
27 import java.util.HashMap JavaDoc;
28
29 import org.objectweb.tribe.exceptions.NoReceiverException;
30
31 /**
32  * This class defines a PingMessage
33  *
34  * @author <a HREF="mailto:Emmanuel.Cecchet@inria.fr">Emmanuel Cecchet </a>
35  * @version 1.0
36  */
37 public class PingMessage extends ChannelMessage
38 {
39
40   /**
41    * Creates a new <code>PingMessage</code> object
42    *
43    * @param destinationKey
44    */
45   public PingMessage()
46   {
47     super(null);
48   }
49
50   /**
51    * @see org.objectweb.tribe.messages.ChannelMessage#deliverMessage(java.util.HashMap)
52    */
53   public void deliverMessage(HashMap JavaDoc receiveBuffers) throws NoReceiverException
54   {
55     // Just do nothing, the message will be discarded
56 }
57 }
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