01: package net.sourceforge.squirrel_sql.client.mainframe.action;
02:
03: /*
04: * Copyright (C) 2001-2003 Colin Bell
05: * colbell@users.sourceforge.net
06: *
07: * This library is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2.1 of the License, or (at your option) any later version.
11: *
12: * This library is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this library; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: */
21: import net.sourceforge.squirrel_sql.fw.util.ICommand;
22:
23: import net.sourceforge.squirrel_sql.client.IApplication;
24: import net.sourceforge.squirrel_sql.client.gui.AboutBoxDialog;
25:
26: /**
27: * This <CODE>ICommand</CODE> allows the user to copy an existing
28: * <TT>ISQLAlias</TT> to a new one and then maintain the new one.
29: *
30: * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
31: */
32: public class AboutCommand implements ICommand {
33: /** Application API. */
34: private IApplication _app;
35:
36: /**
37: * Ctor.
38: *
39: * @param app Application API.
40: *
41: * @throws IllegalArgumentException
42: * Thrown if a <TT>null</TT> <TT>IApplication</TT> passed.
43: */
44: public AboutCommand(IApplication app) {
45: super ();
46: if (app == null) {
47: throw new IllegalArgumentException(
48: "Null IApplication passed");
49: }
50: _app = app;
51: }
52:
53: /**
54: * Display the About Box.
55: */
56: public void execute() {
57: AboutBoxDialog.showAboutBox(_app);
58: }
59: }
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