001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/io/datastore/schema/content/MappingGeometryField.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstraße 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043 package org.deegree.io.datastore.schema.content;
044
045 /**
046 * Encapsulates a geometry field of the backend (e.g. an SQL table column).
047 *
048 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
049 * @author last edited by: $Author: apoth $
050 *
051 * @version $Revision: 9342 $, $Date: 2007-12-27 13:32:57 +0100 (Do, 27 Dez 2007) $
052 */
053 public class MappingGeometryField extends MappingField {
054
055 private int srs;
056
057 /**
058 * Creates a new instance of <code>MappingGeometryField</code> from the given parameters.
059 *
060 * @param table
061 * @param field
062 * @param typeCode
063 * @param srs
064 * -1: no SRS information available
065 */
066 public MappingGeometryField( String table, String field, int typeCode, int srs ) {
067 super( table, field, typeCode );
068 this.srs = srs;
069 }
070
071 /**
072 * Returns false, because a geometry db field is not suitable as a sort criterion.
073 *
074 * @return false, because a geometry db field is not suitable as a sort criterion
075 */
076 @Override
077 public boolean isSortable () {
078 return false;
079 }
080
081 /**
082 * Always returns false.
083 *
084 * @return false
085 */
086 @Override
087 public boolean isNumeric() {
088 return false;
089 }
090
091 /**
092 * Returns the vendor dependent descriptor for the SRS of the stored geometries.
093 *
094 * @return vendor dependent descriptor for the SRS, may be null
095 */
096 public int getSRS() {
097 return this.srs;
098 }
099 }