/* | |
* 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; | |
import java.util.List; | |
import com.alibaba.dubbo.common.Node; | |
import com.alibaba.dubbo.rpc.Invocation; | |
import com.alibaba.dubbo.rpc.Invoker; | |
import com.alibaba.dubbo.rpc.RpcException; | |
/** | |
* Directory. (SPI, Prototype, ThreadSafe) | |
* | |
* <a href="http://en.wikipedia.org/wiki/Directory_service">Directory Service</a> | |
* | |
* @see com.alibaba.dubbo.rpc.cluster.Cluster#join(Directory) | |
* @author william.liangf | |
*/ | |
public interface Directory<T> extends Node { | |
/** | |
* get service type. | |
* | |
* @return service type. | |
*/ | |
Class<T> getInterface(); | |
/** | |
* list invokers. | |
* | |
* @return invokers | |
*/ | |
List<Invoker<T>> list(Invocation invocation) throws RpcException; | |
} |