/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* 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.
*
* Created on 28 July 2002, 16:03
*/
package org.geotools.filter;
import static org.geotools.filter.capability.FunctionNameImpl.parameter;
import org.geotools.filter.capability.FunctionNameImpl;
import org.opengis.filter.capability.FunctionName;
import org.opengis.filter.expression.Expression;
/**
* A function that returns the maximum of two arguments.
*
* @author James
*
* @source $URL$
* @version $Id$
* @deprecated - use org.geotools.filter.function.math.MaxFunction instead
*/
public class MaxFunction extends FunctionExpressionImpl{
//public static FunctionName NAME = new FunctionNameImpl("Max","number","number");
public static FunctionName NAME = new FunctionNameImpl("Max",
parameter("max", Double.class),
parameter("number", Number.class),
parameter("number", Number.class));
/**
* Creates a new instance of MinFunction
*/
public MaxFunction() {
super(NAME);
}
/**
* Returns a value for this expression.
*
* @param feature Specified feature to use when returning value.
*
* @return Value of the feature object.
*/
public Object evaluate(Object feature) {
org.opengis.filter.expression.Expression expA = (Expression) getParameters().get(0);
org.opengis.filter.expression.Expression expB = (Expression) getParameters().get(1);
double first = ((Number) expA.evaluate(feature)).doubleValue();
double second = ((Number) expB.evaluate(feature)).doubleValue();
return new Double(Math.max(first, second));
}
}