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     */
018    
019    package org.apache.commons.exec;
020    
021    /**
022     * The callback handlers for the result of asynchronous process execution. When a
023     * process is started asynchronously the callback provides you with the result of
024     * the executed process, i.e. the exit value or an exception. 
025     *
026     * @see org.apache.commons.exec.Executor#execute(CommandLine, java.util.Map, ExecuteResultHandler) 
027     */
028    public interface ExecuteResultHandler {
029    
030      /**
031       * The asynchronous execution completed.
032       *
033       * @param exitValue the exit value of the sub-process
034       */
035        void onProcessComplete(int exitValue);
036    
037      /**
038       * The asynchronous execution failed.
039       *
040       * @param e the <code>ExecuteException</code> containing the root cause
041       */
042        void onProcessFailed(ExecuteException e);
043    }