KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > nightlabs > editor2d > model > NumberCellEditorValidator


1 /* *****************************************************************************
2  * NightLabs Editor2D - Graphical editor framework *
3  * Copyright (C) 2004-2005 NightLabs - http://NightLabs.org *
4  * Project author: Daniel Mazurek <Daniel.Mazurek [at] nightlabs [dot] org> *
5  * *
6  * This library is free software; you can redistribute it and/or *
7  * modify it under the terms of the GNU Lesser General Public *
8  * License as published by the Free Software Foundation; either *
9  * version 2.1 of the License, or (at your option) any later version. *
10  * *
11  * This library is distributed in the hope that it will be useful, *
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14  * Lesser General Public License for more details. *
15  * *
16  * You should have received a copy of the GNU Lesser General Public *
17  * License along with this library; if not, write to the *
18  * Free Software Foundation, Inc., *
19  * 51 Franklin St, Fifth Floor, *
20  * Boston, MA 02110-1301 USA *
21  * *
22  * Or get it online : *
23  * http://www.gnu.org/copyleft/lesser.html *
24  * *
25  * *
26  ******************************************************************************/
27
28 package org.nightlabs.editor2d.model;
29
30 import org.eclipse.jface.viewers.ICellEditorValidator;
31
32 import org.nightlabs.editor2d.EditorPlugin;
33
34 public class NumberCellEditorValidator
35 implements ICellEditorValidator
36 {
37     private static NumberCellEditorValidator sharedInstance;
38
39     public static NumberCellEditorValidator getSharedInstance() {
40         if (sharedInstance == null)
41             sharedInstance = new NumberCellEditorValidator();
42         return sharedInstance;
43     }
44
45     public String JavaDoc isValid(Object JavaDoc value) {
46         try {
47             new Integer JavaDoc((String JavaDoc)value);
48             return null;
49         } catch (NumberFormatException JavaDoc exc) {
50             return EditorPlugin.getResourceString("property.error.notanumber");
51         }
52     }
53 }
54
Popular Tags