1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18
19 package org.codehaus.activecluster.election;
20
21 import javax.jms.JMSException;
22 import org.codehaus.activecluster.Cluster;
23 import org.codehaus.activecluster.Node;
24
25 /***
26 * <p><code>Service</code> Used by the Cluster to elect a coordinator.</p>
27 *
28 * @version $Revision: 1.1 $
29 */
30 public interface ElectionStrategy {
31
32 /***
33 * Elect a coordinator.
34 * @param cluster
35 * @return the elected Node
36 * @throws JMSException
37 */
38 public Node doElection(Cluster cluster) throws JMSException;
39
40 }