/*FreeMind - A Program for creating and viewing Mindmaps
*Copyright (C) 2000-2004 Joerg Mueller, Daniel Polansky, Christian Foltin and others.
*
*See COPYING for Details
*
*This program is free software; you can redistribute it and/or
*modify it under the terms of the GNU General Public License
*as published by the Free Software Foundation; either version 2
*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 General Public License for more details.
*
*You should have received a copy of the GNU General Public License
*along with this program; if not, write to the Free Software
*Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Created on 25.08.2004
*/
package freemind.modes.mindmapmode.actions.xml;
/**
* @author foltin
*
* Filter serve for the intersection of commands to be executed.
*
* The most useful scenario for these classes is the intersection of the
* command flow, eg. for collaboration or for storage of the map
* creation procedure ("map's story").
*
*/
public interface ActionFilter {
/**
* Each filter receives the action pair and its result is taken as the new
* action pair.
*/
ActionPair filterAction(ActionPair pair);
/**
* @author foltin This is a marker interface. Final Action Filter are always
* called last and *should* not alter the action pair.
*/
public interface FinalActionFilter extends ActionFilter {
}
/**
* @author foltin This is a marker interface. FirstActionFilter are always
* called first and *should* not alter the action pair.
*/
public interface FirstActionFilter extends ActionFilter {
}
}