hadoop ProtocolMetaInterface 源码
haddop ProtocolMetaInterface 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtocolMetaInterface.java
/**
* 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.hadoop.ipc;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* This interface is implemented by the client side translators and can be used
* to obtain information about underlying protocol e.g. to check if a method is
* supported on the server side.
*/
@InterfaceAudience.Private
@InterfaceStability.Stable
public interface ProtocolMetaInterface {
/**
* Checks whether the given method name is supported by the server.
* It is assumed that all method names are unique for a protocol.
* @param methodName The name of the method
* @return true if method is supported, otherwise false.
* @throws IOException raised on errors performing I/O.
*/
public boolean isMethodSupported(String methodName) throws IOException;
}
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