/*
This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2011 Servoy BV
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Affero General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along
with this program; if not, see http://www.gnu.org/licenses or write to the Free
Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
*/
package com.servoy.j2db.dataprocessing;
/**
* Interface for Subjects to which {@link IModificationListener} can (de)register for modifications.
*
* @author rgansevles
*
* @since 6.1
*/
public interface IModificationSubject
{
void addModificationListener(IModificationListener listener);
void removeModificationListener(IModificationListener listener);
boolean hasListeners();
void fireModificationEvent(ModificationEvent event);
}