001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_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 }