/*
 *    GeoTools - OpenSource mapping toolkit
 *    http://geotools.org
 *    (C) 2006, GeoTools Project Managment Committee (PMC)
 *        
 *    This library 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;
 *    version 2.1 of the License.
 *
 *    This library 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.
 */
package org.geotools.filter;

import org.geotools.feature.Feature;
import org.opengis.filter.FilterVisitor;
import org.opengis.filter.PropertyIsGreaterThanOrEqualTo;
import org.opengis.filter.expression.Expression;
/**
 * @author jdeolive
 */
public class IsGreaterThanOrEqualToImpl extends CompareFilterImpl
		implements PropertyIsGreaterThanOrEqualTo {

	protected IsGreaterThanOrEqualToImpl(FilterFactory factory) {
		this(factory, null, null);
	}
	
	protected IsGreaterThanOrEqualToImpl(FilterFactory factory, Expression expression1, Expression expression2) {
		super(factory, expression1, expression2);
		
		//backwards compat with old type system
		this.filterType = COMPARE_GREATER_THAN_EQUAL;
	}
	
	//@Override
	public boolean evaluate(Object feature) {
		Object[] values = eval( feature );
		Comparable value1 = comparable( values[ 0 ] );
		Comparable value2 = comparable( values[ 1 ] );
		
		return value1 != null && value2 != null && compare(value1,value2) >= 0;
	}

	public Object accept(FilterVisitor visitor, Object extraData) {
		return visitor.visit(this,extraData);
	}
}
