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Java > Open Source Codes > org > apache > catalina > CometProcessor


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18
19 package org.apache.catalina;
20
21 import java.io.IOException JavaDoc;
22
23 import javax.servlet.ServletException JavaDoc;
24
25 /**
26  * This interface should be implemented by servlets which would like to handle
27  * asynchronous IO, recieving events when data is available for reading, and
28  * being able to output data without the need for being invoked by the container.
29  * Note: When this interface is implemented, the service method of the servlet will
30  * never be called, and will be replaced with a begin event.
31  */
32 public interface CometProcessor {
33
34     /**
35      * Process the given Comet event.
36      *
37      * @param event The Comet event that will be processed
38      * @throws IOException
39      * @throws ServletException
40      */
41     public void event(CometEvent event)
42         throws IOException JavaDoc, ServletException JavaDoc;
43
44 }
45
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