/*
NeoDatis ODB : Native Object Database (odb.info@neodatis.org)
Copyright (C) 2007 NeoDatis Inc. http://www.neodatis.org

"This file is part of the NeoDatis ODB open source object database".

NeoDatis ODB 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 2.1 of the License, or (at your option) any later version.

NeoDatis ODB 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 this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/
package org.neodatis.odb.core.query.criteria;

import org.neodatis.odb.core.layers.layer2.meta.AttributeValuesMap;
import org.neodatis.tool.wrappers.list.IOdbList;



public class Not extends AbstractExpression {

	private ICriterion criterion;
	
	public Not(ICriterion criterion){
		this.criterion = criterion;
	}
	
	public boolean match(Object object){
		return !criterion.match(object);
	}

	public String toString() {
		StringBuffer buffer = new StringBuffer();
		buffer.append(" not ").append(criterion);
		return buffer.toString();
	}
	public IOdbList getAllInvolvedFields() {
		return criterion.getAllInvolvedFields();
	}
	public AttributeValuesMap getValues() {
		return new AttributeValuesMap();
	}

	public void ready() {
	}
}