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     */
019    
020    
021    package javax.servlet;
022    
023    import java.util.EventListener;
024    import java.io.IOException;
025    
026    /**
027     * @version $Rev: 835965 $ $Date: 2009-11-13 14:40:44 -0500 (Fri, 13 Nov 2009) $
028     * @since 3.0
029     */
030    public interface AsyncListener extends EventListener {
031    
032        void onComplete(AsyncEvent event) throws IOException;
033    
034        void onError(AsyncEvent event) throws IOException;
035    
036        void onStartAsync(AsyncEvent event) throws IOException;
037    
038        void onTimeout(AsyncEvent event) throws IOException;
039    }