    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/model/filterencoding/Operation.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036
    037    package org.deegree.model.filterencoding;
    038
    039    import org.deegree.model.feature.Feature;
    040
    041    /**
    042     *
    043     * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider</a>
    044     * @author last edited by: $Author: mschneider $
    045     *
    046     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    047     */
    048    public interface Operation {
    049
    050        /**
    051         * Returns the name of the operator.
    052         *
    053         * @return the name of the operator.
    054         */
    055        String getOperatorName();
    056
    057        /**
    058         * Returns the operator's id.
    059         *
    060         * @return the operator's id.
    061         */
    062        int getOperatorId();
    063
    064        /**
    065         * Calculates the <tt>Filter</tt>'s logical value based on the certain property values of the given feature.
    066         *
    067         * @param feature
    068         *            that determines the values of <tt>PropertyNames</tt> in the expression
    069         * @return true, if the <tt>Filter</tt> evaluates to true, else false
    070         * @throws FilterEvaluationException
    071         *             if the evaluation fails
    072         */
    073        public boolean evaluate( Feature feature )
    074                                throws FilterEvaluationException;
    075
    076        /**
    077         * Produces an XML representation of this object.
    078         *
    079         * @return an XML representation of this object.
    080         */
    081        public StringBuffer toXML();
    082
    083        /**
    084         * Produces an XML representation of this object that complies to Filter Encoding specification 1.0.0.
    085         *
    086         * @return an XML representation of this object
    087         */
    088        public StringBuffer to100XML();
    089
    090        /**
    091         * Produces an XML representation of this object that complies to Filter Encoding specification 1.1.0.
    092         *
    093         * @return an XML representation of this object
    094         */
    095        public StringBuffer to110XML();
    096    }