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.exception.evaluator.NetworkException;
022
023/**
024 * Connection between two end-points named by identifiers.
025 *
026 * @param <T> type
027 */
028public interface Connection<T> extends AutoCloseable {
029
030  /**
031   * Opens the connection.
032   *
033   * @throws NetworkException
034   */
035  void open() throws NetworkException;
036
037  /**
038   * Writes an object to the connection.
039   *
040   * @param obj
041   * @throws NetworkException
042   */
043  void write(T obj) throws NetworkException;
044
045  /**
046   * Closes the connection.
047   *
048   * @throws NetworkException
049   */
050  @Override
051  void close() throws NetworkException;
052}