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Java > Open Source Codes > org > apache > cocoon > woody > formmodel > ActionDefinition


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.woody.formmodel;
17
18 import org.apache.cocoon.woody.event.ActionEvent;
19 import org.apache.cocoon.woody.event.ActionListener;
20 import org.apache.cocoon.woody.event.WidgetEventMulticaster;
21
22 /**
23  * The {@link WidgetDefinition} part of a Action widget, see {@link Action} for more information.
24  *
25  * @version $Id: ActionDefinition.java 30932 2004-07-29 17:35:38Z vgritsenko $
26  */
27 public class ActionDefinition extends AbstractWidgetDefinition {
28     private String JavaDoc actionCommand;
29     private ActionListener listener;
30
31     public void setActionCommand(String JavaDoc actionCommand) {
32         this.actionCommand = actionCommand;
33     }
34
35     public String JavaDoc getActionCommand() {
36         return actionCommand;
37     }
38
39     public Widget createInstance() {
40         return new Action(this);
41     }
42
43     public void addActionListener(ActionListener listener) {
44         this.listener = WidgetEventMulticaster.add(this.listener, listener);
45     }
46     
47     public void fireActionEvent(ActionEvent event) {
48         if (this.listener != null) {
49             this.listener.actionPerformed(event);
50         }
51     }
52
53     public boolean hasActionListeners() {
54         return this.listener != null;
55     }
56 }
57
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