net.sf.ehcache.cluster.ClusterTopologyListener Maven / Gradle / Ivy
/**
* Copyright 2003-2010 Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.ehcache.cluster;
/**
* A listener for cluster topology events
*
* @author Geert Bevin
* @since 2.0
*/
public interface ClusterTopologyListener {
/**
* A node has joined the cluster
*
* @param node The joining node
*/
void nodeJoined(ClusterNode node);
/**
* A node has left the cluster
*
* @param node The departing node
*/
void nodeLeft(ClusterNode node);
/**
* This node has established contact with the cluster and can execute clustered operations.
*
* @param node The current node
*/
void clusterOnline(ClusterNode node);
/**
* This node has lost contact (possibly temporarily) with the cluster and cannot execute
* clustered operations
*
* @param node The current node
*/
void clusterOffline(ClusterNode node);
/**
* This node lost contact and rejoined the cluster again.
*
* This event is only fired in the node which rejoined and not to all the connected nodes
* @param oldNode The old node which got disconnected
* @param newNode The new node after rejoin
*/
void clusterRejoined(ClusterNode oldNode, ClusterNode newNode);
}