/*
This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 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.util.visitor;
import java.util.HashMap;
import java.util.Map;
/** Visitor class to for replacing duplicate objects with the same instance in a IVisitable object.
* @see IVisitable
* @author rgansevles
*
*/
public class PackVisitor implements IVisitor
{
Map map = new HashMap();
public Object visit(Object o)
{
Object o2 = map.get(o);
if (o2 == null)
{
map.put(o, o);
o2 = o;
}
return o2;
}
}