01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.ha.singleton;
23:
24: /**
25: * The management interface for the singleton support service.
26: *
27: * @author <a href="mailto:Alex.Fu@novell.com">Alex Fu</a>
28: * @version $Revision$
29: */
30: public interface HASingletonSupportMBean extends HASingletonMBean {
31: /** The HASingleton election policy MBean */
32: void setElectionPolicy(HASingletonElectionPolicy mb);
33:
34: HASingletonElectionPolicy getElectionPolicy();
35:
36: /**
37: * Gets whether this singleton will stop and restart itself if it is the
38: * master and a cluster merge occurs.
39: * <p/>
40: * A restart allows the service to reset any state that may
41: * have gotten out-of-sync with the rest of the cluster while
42: * the just-merged split was in effect.
43: *
44: * @return <code>true</code> if a restart will occur, <code>false</code>
45: * otherwise
46: */
47: boolean getRestartOnMerge();
48:
49: /**
50: * Sets whether this singleton will stop and restart itself if it is the
51: * master and a cluster merge occurs?
52: * <p/>
53: * A restart allows the service to reset any state that may
54: * have gotten out-of-sync with the rest of the cluster while
55: * the just-merged split was in effect.
56: *
57: * @param restartOnMerge <code>true</code> if a restart should occur,
58: * <code>false</code> otherwise
59: */
60: void setRestartOnMerge(boolean restartOnMerge);
61: }
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