/* | |
* 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.common.Extension; | |
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; | |
/** | |
* 并行调用,只要一个成功即返回,通常用于实时性要求较高的操作,但需要浪费更多服务资源。 | |
* | |
* <a href="http://en.wikipedia.org/wiki/Fork_(topology)">Fork</a> | |
* | |
* @author william.liangf | |
*/ | |
@Extension(ForkingCluster.NAME) | |
public class ForkingCluster implements Cluster { | |
public final static String NAME = "forking"; | |
public <T> Invoker<T> merge(Directory<T> directory) throws RpcException { | |
return new ForkingClusterInvoker<T>(directory); | |
} | |
} |