org.h2gis.api.DeterministicScalarFunction Maven / Gradle / Ivy

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/*
 * H2GIS is a library that brings spatial support to the H2 Database Engine
 * http://www.h2database.com. H2GIS is developed by CNRS
 * http://www.cnrs.fr/.
 *
 * This code is part of the H2GIS project. H2GIS 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 3.0 of the License.
 *
 * H2GIS 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 .
 *
 *
 * For more information, please consult: http://www.h2gis.org/
 * or contact directly: info_at_h2gis.org
 */

package org.h2gis.api;

/**
 * Extended by Scalar function which return always the same value for the same arguments.
 *
 * @author Nicolas Fortin
 */
public abstract class DeterministicScalarFunction extends AbstractFunction implements ScalarFunction {

    /**
     * Default empty constructor.
     */
    public DeterministicScalarFunction() {
        addProperty(ScalarFunction.PROP_DETERMINISTIC, true);
    }
}