/**
* eAdventure (formerly <e-Adventure> and <e-Game>) is a research project of the
* <e-UCM> research group.
*
* Copyright 2005-2010 <e-UCM> research group.
*
* You can access a list of all the contributors to eAdventure at:
* http://e-adventure.e-ucm.es/contributors
*
* <e-UCM> is a research group of the Department of Software Engineering
* and Artificial Intelligence at the Complutense University of Madrid
* (School of Computer Science).
*
* C Profesor Jose Garcia Santesmases sn,
* 28040 Madrid (Madrid), Spain.
*
* For more info please visit: <http://e-adventure.e-ucm.es> or
* <http://www.e-ucm.es>
*
* ****************************************************************************
*
* This file is part of eAdventure, version 2.0
*
* eAdventure is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* eAdventure 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with eAdventure. If not, see <http://www.gnu.org/licenses/>.
*/
package es.eucm.ead.editor.model;
import es.eucm.ead.editor.model.nodes.DependencyNode;
import java.util.Arrays;
/**
* An implementation of ModelEvent, heavy on the "ease of use" philosophy.
*
* @author mfreire
*/
public class DefaultModelEvent implements ModelEvent {
private static final DependencyNode[] emptyArray = new DependencyNode[0];
private String name;
private Object cause;
private DependencyNode[] added;
private DependencyNode[] changed;
private DependencyNode[] removed;
public DefaultModelEvent(String name, Object cause, DependencyNode[] added,
DependencyNode[] removed, DependencyNode... changed) {
this.name = name;
this.cause = cause;
this.added = (added == null ? emptyArray : sorted(added));
this.removed = (removed == null ? emptyArray : sorted(removed));
this.changed = (changed == null ? emptyArray : sorted(changed));
}
private DependencyNode[] sorted(DependencyNode[] nodes) {
if (nodes.length > 0) {
Arrays.sort(nodes);
}
return nodes;
}
@Override
public String getName() {
return name;
}
@Override
public DependencyNode[] getAdded() {
return added;
}
@Override
public DependencyNode[] getRemoved() {
return removed;
}
@Override
public DependencyNode[] getChanged() {
return changed;
}
@Override
public Object getCause() {
return cause;
}
/**
* Allows reuse of the same ModelChange for the original and the undo.
* Simply swaps 'added' and 'removed'
*/
public void flip() {
DependencyNode[] aux;
aux = added;
added = removed;
removed = aux;
}
@Override
public String toString() {
return "ModelChange{" + ModelEventUtils.dump(this) + '}';
}
}