1 //----------------------------------------------------------------------
2 //
3 // PerfectJPattern: "Design patterns are good but components are better!"
4 // IParameterlessSubject.java Copyright (c) 2009 Giovanni Azua Garcia
5 // bravegag@hotmail.com
6 //
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License
9 // as published by the Free Software Foundation; either version 3
10 // of the License, or (at your option) any later version.
11 //
12 // This program 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
15 // GNU General Public License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, see <http://www.gnu.org/licenses/>.
19 //
20 //----------------------------------------------------------------------
21 package org.perfectjpattern.core.api.behavioral.observer;
22
23 import org.perfectjpattern.core.api.behavioral.observer.data.*;
24
25 /**
26 * {@link ISubject} whose event is not associated with any {@link IEventData}
27 *
28 * @author <a href="mailto:bravegag@hotmail.com">Giovanni Azua</a>
29 * @version $Revision: 1.0 $Date: Feb 14, 2009 12:23:13 PM $
30 */
31 public
32 interface IParameterlessSubject
33 extends ISubject<NullEventData>
34 {
35 //------------------------------------------------------------------------
36 // public
37 //------------------------------------------------------------------------
38 /**
39 * Notifies all subscribed {@link IObserver} instances without the need
40 * to provide any {@link IEventData}
41 */
42 public void
43 notifyObservers();
44 }