Source code

001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.driver.context;
020
021import org.apache.reef.annotations.Provided;
022import org.apache.reef.annotations.audience.DriverSide;
023import org.apache.reef.annotations.audience.Public;
024import org.apache.reef.io.Message;
025import org.apache.reef.io.naming.Identifiable;
026
027/**
028 * Driver-side representation of a message sent by a Context to the Driver.
029 */
030@Public
031@DriverSide
032@Provided
033public interface ContextMessage extends Message, Identifiable {
034
035  /**
036   * @return the message sent by the Context.
037   */
038  @Override
039  public byte[] get();
040
041  /**
042   * @return the ID of the sending Context.
043   */
044  @Override
045  public String getId();
046
047  /**
048   * @return the ID of the ContextMessageSource that sent the message on the Context.
049   */
050  public String getMessageSourceID();
051
052}