forked from apache/dubbo
/
ForkingCluster.java
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/
ForkingCluster.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.dubbo.rpc.cluster.support;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.RpcException;
import org.apache.dubbo.rpc.cluster.Cluster;
import org.apache.dubbo.rpc.cluster.Directory;
/**
* {@link ForkingClusterInvoker}
* 并行调用多个服务器,只要一个成功即返回。
* 通常用于实时性要求较高的读操作,但需要浪费更多服务资源。
* 可通过 forks="2" 来设置最大并行数
*
*/
public class ForkingCluster implements Cluster {
public final static String NAME = "forking";
@Override
public <T> Invoker<T> join(Directory<T> directory) throws RpcException {
return new ForkingClusterInvoker<T>(directory);
}
}