001: //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/trunk/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 04:32:57 -0800 (Thu, 27 Dec 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,
067: int typeCode, int srs) {
068: super (table, field, typeCode);
069: this .srs = srs;
070: }
071:
072: /**
073: * Returns false, because a geometry db field is not suitable as a sort criterion.
074: *
075: * @return false, because a geometry db field is not suitable as a sort criterion
076: */
077: @Override
078: public boolean isSortable() {
079: return false;
080: }
081:
082: /**
083: * Always returns false.
084: *
085: * @return false
086: */
087: @Override
088: public boolean isNumeric() {
089: return false;
090: }
091:
092: /**
093: * Returns the vendor dependent descriptor for the SRS of the stored geometries.
094: *
095: * @return vendor dependent descriptor for the SRS, may be null
096: */
097: public int getSRS() {
098: return this.srs;
099: }
100: }
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