001    /*
002     * Copyright 2010 Red Hat, Inc.
003     * Red Hat licenses this file to you under the Apache License, version
004     * 2.0 (the "License"); you may not use this file except in compliance
005     * with the License.  You may obtain a copy of the License at
006     *    http://www.apache.org/licenses/LICENSE-2.0
007     * Unless required by applicable law or agreed to in writing, software
008     * distributed under the License is distributed on an "AS IS" BASIS,
009     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
010     * implied.  See the License for the specific language governing
011     * permissions and limitations under the License.
012     */
013    
014    package org.hornetq.api.core.client;
015    
016    import org.hornetq.api.core.Pair;
017    import org.hornetq.api.core.TransportConfiguration;
018    
019    
020    /**
021     * A ClusterTopologyListener
022     *
023     * @author tim
024     *
025     *
026     */
027    public interface ClusterTopologyListener
028    {
029       void nodeUP(long eventUID, String nodeID, Pair<TransportConfiguration, TransportConfiguration> connectorPair, boolean last);
030       
031       void nodeDown(long eventUID, String nodeID);
032    }