network/client/RpcResponseCallback.java

0001 /*
0002  * Licensed to the Apache Software Foundation (ASF) under one or more
0003  * contributor license agreements.  See the NOTICE file distributed with
0004  * this work for additional information regarding copyright ownership.
0005  * The ASF licenses this file to You under the Apache License, Version 2.0
0006  * (the "License"); you may not use this file except in compliance with
0007  * the License.  You may obtain a copy of the License at
0008  *
0009  *    http://www.apache.org/licenses/LICENSE-2.0
0010  *
0011  * Unless required by applicable law or agreed to in writing, software
0012  * distributed under the License is distributed on an "AS IS" BASIS,
0013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0014  * See the License for the specific language governing permissions and
0015  * limitations under the License.
0016  */
0017
0018 package org.apache.spark.network.client;
0019
0020 import java.nio.ByteBuffer;
0021
0022 /**
0023  * Callback for the result of a single RPC. This will be invoked once with either success or
0024  * failure.
0025  */
0026 public interface RpcResponseCallback {
0027   /**
0028    * Successful serialized result from server.
0029    *
0030    * After `onSuccess` returns, `response` will be recycled and its content will become invalid.
0031    * Please copy the content of `response` if you want to use it after `onSuccess` returns.
0032    */
0033   void onSuccess(ByteBuffer response);
0034
0035   /** Exception either propagated from server or raised on client side. */
0036   void onFailure(Throwable e);
0037 }