ElectionStrategy xref

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    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  }