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 package org.codehaus.activecluster; 19 20 import javax.jms.Destination; 21 import java.io.Serializable; 22 import java.util.Map; 23 24 25 /*** 26 * Represents a node member in a cluster 27 * 28 * @version $Revision: 1.3 $ 29 */ 30 public interface Node extends Serializable { 31 32 /*** 33 * Access to the queue to send messages direct to this node. 34 * 35 * @return the destination to send messages to this node while its available 36 */ 37 public Destination getDestination(); 38 39 /*** 40 * @return an immutable map of the nodes state 41 */ 42 public Map getState(); 43 44 /*** 45 * @return the name of the node 46 */ 47 public String getName(); 48 49 /*** 50 * @return true if this node has been elected as coordinator 51 */ 52 public boolean isCoordinator(); 53 }