/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 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.
*/
package org.geotools.filter.visitor;
import org.opengis.annotation.XmlElement;
import org.opengis.filter.expression.Expression;
/**
* This function recodes values from a property or expression into corresponding values of
* arbitrary type. The comparisons are performed checking for identical values.
*
*
* @source $URL$
* @version <A HREF="http://www.opengeospatial.org/standards/symbol">Symbology Encoding Implementation Specification 1.1.0</A>
* @author Johann Sorel (Geomatys)
*/
@XmlElement("MapItem")
public interface MapItem extends Expression{
/**
* Get value.
*
* The Values can be of any type, dependent on which symbolization context the function is
* employed. Color values (like #00ffff) or numeric values are typical.
*
* @return Expression
*/
@XmlElement("Value")
Expression getValue();
/**
* Get data.
*
* @return double
*/
@XmlElement("Data")
double getData();
}