001    //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/io/datastore/schema/content/MappingGeometryField.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    package org.deegree.io.datastore.schema.content;
037    
038    /**
039     * Encapsulates a geometry field of the backend (e.g. an SQL table column).
040     *
041     * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
042     * @author last edited by: $Author: mschneider $
043     *
044     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
045     */
046    public class MappingGeometryField extends MappingField {
047    
048        private int srs;
049    
050        /**
051         * Creates a new instance of <code>MappingGeometryField</code> from the given parameters.
052         *
053         * @param table
054         * @param field
055         * @param typeCode
056         * @param srs
057         *            -1: no SRS information available
058         */
059        public MappingGeometryField( String table, String field, int typeCode, int srs ) {
060            super( table, field, typeCode );
061            this.srs = srs;
062        }
063    
064        /**
065         * Returns false, because a geometry db field is not suitable as a sort criterion.
066         *
067         * @return false, because a geometry db field is not suitable as a sort criterion
068         */
069        @Override
070        public boolean isSortable () {
071            return false;
072        }
073    
074        /**
075         * Always returns false.
076         *
077         * @return false
078         */
079        @Override
080        public boolean isNumeric() {
081            return false;
082        }
083    
084        /**
085         * Returns the vendor dependent descriptor for the SRS of the stored geometries.
086         *
087         * @return vendor dependent descriptor for the SRS, may be null
088         */
089        public int getSRS() {
090            return this.srs;
091        }
092    }