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Java > Open Source Codes > org > apache > myfaces > examples > example1 > CalcActionListener


1 /*
2  * Copyright 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.myfaces.examples.example1;
17
18 import javax.faces.component.UIComponent;
19 import javax.faces.context.FacesContext;
20 import javax.faces.el.VariableResolver;
21 import javax.faces.event.AbortProcessingException;
22 import javax.faces.event.ActionEvent;
23 import javax.faces.event.ActionListener;
24
25 /**
26  * DOCUMENT ME!
27  * @author Manfred Geiler
28  * @version $Revision: 1.1 $ $Date: 2005/03/24 16:47:10 $
29  */
30 public class CalcActionListener
31     implements ActionListener
32 {
33     public void processAction(ActionEvent event) throws AbortProcessingException
34     {
35         FacesContext facesContext = FacesContext.getCurrentInstance();
36         UIComponent component = event.getComponent();
37
38         VariableResolver vr = facesContext.getApplication().getVariableResolver();
39         CalcForm form = (CalcForm)vr.resolveVariable(facesContext, "calcForm");
40         if (component.getId().equals("addButton") ||
41             component.getId().equals("href1"))
42         {
43             form.add();
44         }
45         else
46         {
47             form.subtract();
48         }
49     }
50
51 }
52
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