org.apache.flink.runtime.rpc.messages.RpcInvocation Maven / Gradle / Ivy
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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.flink.runtime.rpc.messages;
import java.io.IOException;
/**
* Interface for rpc invocation messages. The interface allows to request all necessary information
* to lookup a method and call it with the corresponding arguments.
*/
public interface RpcInvocation {
/**
* Returns the method's name.
*
* @return Method name
* @throws IOException if the rpc invocation message is a remote message and could not be deserialized
* @throws ClassNotFoundException if the rpc invocation message is a remote message and contains
* serialized classes which cannot be found on the receiving side
*/
String getMethodName() throws IOException, ClassNotFoundException;
/**
* Returns the method's parameter types
*
* @return Method's parameter types
* @throws IOException if the rpc invocation message is a remote message and could not be deserialized
* @throws ClassNotFoundException if the rpc invocation message is a remote message and contains
* serialized classes which cannot be found on the receiving side
*/
Class[] getParameterTypes() throws IOException, ClassNotFoundException;
/**
* Returns the arguments of the remote procedure call
*
* @return Arguments of the remote procedure call
* @throws IOException if the rpc invocation message is a remote message and could not be deserialized
* @throws ClassNotFoundException if the rpc invocation message is a remote message and contains
* serialized classes which cannot be found on the receiving side
*/
Object[] getArgs() throws IOException, ClassNotFoundException;
}