KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > objectweb > dream > protocol > utobcast > message > UPDChunk


1 /**
2  * Dream
3  * Copyright (C) 2003-2004 INRIA Rhone-Alpes
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  *
19  * Contact: dream@objectweb.org
20  *
21  * Initial developer(s): Vivien Quema
22  * Contributor(s):
23  */

24
25 package org.objectweb.dream.protocol.utobcast.message;
26
27 import org.objectweb.dream.message.ChunkType;
28 import org.objectweb.dream.message.ChunkTypeImpl;
29 import org.objectweb.dream.protocol.Process;
30
31 /**
32  * Chunk interface for UPD messages. An UPD message contains the information
33  * sent from the new leader to the process chosen for becoming the new backup.
34  */

35 public interface UPDChunk
36 {
37   /** The default name for chunks of this type. */
38   String JavaDoc DEFAULT_NAME = "updChunk";
39
40   /** The Chunk type of chunks that implements this interface. */
41   ChunkType TYPE = new ChunkTypeImpl(UPDChunk.class, UPDChunkImpl.class);
42
43   /**
44    * Returns the process array that is exchanged between the leader and the
45    * backup.
46    *
47    * @return a process array.
48    */

49   Process JavaDoc[] getProcesses();
50
51   /**
52    * Sets the process array that is exchanged between the leader and the backup.
53    *
54    * @param processes the process array to be set.
55    */

56   void setProcesses(Process JavaDoc[] processes);
57
58   /**
59    * Returns the sequence number that is exchanged between the leader and the
60    * backup.
61    *
62    * @return the sequence number.
63    */

64   long getSequenceNumber();
65
66   /**
67    * Sets the sequence number that is exchanged between the leader and the
68    * backup.
69    *
70    * @param sn the sequence number to be set.
71    */

72   void setSequenceNumber(long sn);
73
74 }
Popular Tags