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Java > Open Source Codes > org > apache > excalibur > event > EventHandler


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
12  * implied.
13  *
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.excalibur.event;
18
19 /**
20  * An <code>EventHandler</code> takes care of processing specific events in
21  * an event-based architecture.
22  *
23  * <p>
24  * The interface design is heavily influenced by
25  * <a HREF="mailto:mdw@cs.berkeley.edu">Matt Welsh</a>'s SandStorm server,
26  * his demonstration of the SEDA architecture. We have deviated where we
27  * felt the design differences where better.
28  * </p>
29  *
30  * @author <a HREF="mailto:dev@avalon.apache.org">Avalon Development Team</a>
31  */
32 public interface EventHandler
33 {
34     /**
35      * Handle one event at a time.
36      *
37      * @param element The element that the EventHandler must process
38      */
39     void handleEvent( Object JavaDoc element );
40
41     /**
42      * Handle a whole array of events at a time.
43      *
44      * @param elements The array of elements that the EventHandler must process
45      */
46     void handleEvents( Object JavaDoc[] elements );
47 }
48
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