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Java > Open Source Codes > org > objectweb > dream > protocol > utobcast > ProcessMembershipAttributeController


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.fractal.api.control.AttributeController;
28
29 /**
30  * An attribute controller for the ProcessMembership component.
31  */
32 public interface ProcessMembershipAttributeController
33     extends
34       AttributeController
35 {
36   /**
37    * Sets the blocking attribute. If this attribute is set to true, then the
38    * ProcessMembership component is in blocking mode, which means that its
39    * methods defined in the server interface it provides block until they can
40    * return a meaningful result. For instance calling the
41    * {@link ProcessMembership#getLeader()}method would block is no leader is
42    * currently elected.
43    *
44    * @param blocking the value to set.
45    */
46   void setBlocking(boolean blocking);
47
48   /**
49    * Returns <code>true</code> if the ProcessMembership component is in
50    * blocking mode.
51    *
52    * @return <code>true</code> if the ProcessMembership component is in
53    * blocking mode.
54    * @see #setBlocking
55    */
56   boolean getBlocking();
57 }
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