001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 *  contributor license agreements.  See the NOTICE file distributed with
004 *  this work for additional information regarding copyright ownership.
005 *  The ASF licenses this file to You under the Apache License, Version 2.0
006 *  (the "License"); you may not use this file except in compliance with
007 *  the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 */
017
018package org.apache.commons.exec;
019
020/**
021 * The callback handlers for the result of asynchronous process execution. When a process is started asynchronously the callback provides you with the result of
022 * the executed process, i.e. the exit value or an exception.
023 *
024 * @see org.apache.commons.exec.Executor#execute(CommandLine, java.util.Map, ExecuteResultHandler)
025 */
026public interface ExecuteResultHandler {
027
028    /**
029     * The asynchronous execution completed.
030     *
031     * @param exitValue the exit value of the sub-process.
032     */
033    void onProcessComplete(int exitValue);
034
035    /**
036     * The asynchronous execution failed.
037     *
038     * @param e the {@code ExecuteException} containing the root cause.
039     */
040    void onProcessFailed(ExecuteException e);
041}