/* * Copyright 1999-2011 Alibaba Group. * * 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 com.alibaba.dubbo.rpc.cluster.support; import com.alibaba.dubbo.rpc.Invoker; import com.alibaba.dubbo.rpc.RpcException; import com.alibaba.dubbo.rpc.cluster.Cluster; import com.alibaba.dubbo.rpc.cluster.Directory; /** * 失败转移,当出现失败,重试其它服务器,通常用于读操作,但重试会带来更长延迟。 * * <a href="http://en.wikipedia.org/wiki/Failover">Failover</a> * * @author william.liangf */ public class FailoverCluster implements Cluster { public final static String NAME = "failover"; public <T> Invoker<T> join(Directory<T> directory) throws RpcException { return new FailoverClusterInvoker<T>(directory); } }