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.io.network;
020
021import org.apache.reef.wake.Identifier;
022
023/**
024 * Network message.
025 *
026 * @param <T>
027 */
028public interface Message<T> {
029
030  /**
031   * Gets a source identifier.
032   *
033   * @return an identifier
034   */
035  Identifier getSrcId();
036
037  /**
038   * Gets a destination identifier.
039   *
040   * @return an identifier
041   */
042  Identifier getDestId();
043
044  /**
045   * Gets data.
046   *
047   * @return an iterable of data objects
048   */
049  Iterable<T> getData();
050}