01: /*
02: * Copyright (C) 2004 NNL Technology AB
03: * Visit www.infonode.net for information about InfoNode(R)
04: * products and how to contact NNL Technology AB.
05: *
06: * This program is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU General Public License
08: * as published by the Free Software Foundation; either version 2
09: * of the License, or (at your option) any later version.
10: *
11: * This program 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
14: * GNU General Public License for more details.
15: *
16: * You should have received a copy of the GNU General Public License
17: * along with this program; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19: * MA 02111-1307, USA.
20: */
21:
22: // $Id: NullWindowAction.java,v 1.4 2005/02/16 11:28:14 jesper Exp $
23: package net.infonode.docking.action;
24:
25: import net.infonode.docking.DockingWindow;
26:
27: import java.io.ObjectStreamException;
28:
29: /**
30: * Does nothing.
31: *
32: * @author $Author: jesper $
33: * @version $Revision: 1.4 $
34: * @since IDW 1.3.0
35: */
36: public class NullWindowAction extends DockingWindowAction {
37: private static final long serialVersionUID = 1;
38:
39: /**
40: * The only instance of this class.
41: */
42: public static final NullWindowAction INSTANCE = new NullWindowAction();
43:
44: private NullWindowAction() {
45: }
46:
47: public String getName() {
48: return "Null";
49: }
50:
51: public boolean isPerformable(DockingWindow window) {
52: return true;
53: }
54:
55: public void perform(DockingWindow window) {
56: }
57:
58: protected Object readResolve() throws ObjectStreamException {
59: return INSTANCE;
60: }
61:
62: }
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