/*

  * 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.giraph.block_app.framework.api;

 import org.apache.giraph.worker.WorkerAggregatorUsage;

 import org.apache.hadoop.io.Writable;

 import org.apache.hadoop.io.WritableComparable;

 /**

  * Block computation API available for worker send methods.

  *

  * Interface to the WorkerContext methods.

  *

  * @param <I> vertex Id type.

  * @param <WM> Worker message type

  */

 @SuppressWarnings("rawtypes")

 public interface BlockWorkerContextSendApi

     <I extends WritableComparable, WM extends Writable>

     extends BlockWorkerContextApi<I>, WorkerAggregatorUsage {

   /**

    * Send message to another worker

    *

    * @param message Message to send

    * @param workerIndex Index of the worker to send the message to

    */

   void sendMessageToWorker(WM message, int workerIndex);

 }