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Java > Open Source Codes > org > apache > cocoon > forms > event > FormHandler


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.cocoon.forms.event;
17
18 /**
19  * A FormHandler can be registered with a {@link org.apache.cocoon.forms.formmodel.Form Form},
20  * and will then receive all events fired by widgets on the form.
21  *
22  * <p>It provides an alternative way of handling events, instead of specifying the eventhandlers
23  * in the form definition.
24  *
25  * <p>It is useful when you want to write your event-handling code in Java, have all events
26  * handled by one class (which could of course again delegate to other classes), and when
27  * you want the event handler to have access to objects it would not be able to get access
28  * to if they were part of the form definition.
29  *
30  * @version $Id: FormHandler.java 151179 2005-02-03 16:55:16Z tim $
31  */
32 public interface FormHandler {
33
34     public void handleEvent(WidgetEvent widgetEvent);
35
36 }
37
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