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 }