ProcessMembershipUpdateNotification


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;
26  
27  import org.objectweb.dream.protocol.Process;
28  
29  /**
30   * This interface defines methods for being notified about ProcessMembership
31   * updates.
32   */
33  public interface ProcessMembershipUpdateNotification
34  {
35    /** The commonly used name to refer to this interface. */
36    String   ITF_NAME = "process-membership-update-notification";
37  
38    /**
39     * Notifies the component that a new leader has been elected.
40     * 
41     * @param leader the new leader.
42     */
43    void newLeader(Process   leader);
44  
45    /**
46     * Notifies the component that a new backup has been elected.
47     * 
48     * @param backup the new backup.
49     */
50    void newBackup(Process   backup);
51  
52    /**
53     * Notifies the component that new processes have joined.
54     * 
55     * @param processes the new processes.
56     */
57    void newProcesses(Process  [] processes);
58  }

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