001 //$HeadURL: svn+ssh://jwilden@svn.wald.intevation.org/deegree/base/branches/2.5_testing/src/org/deegree/io/datastore/schema/content/ConstantContent.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 import org.deegree.io.datastore.schema.MappedSimplePropertyType;
039
040 /**
041 * Special content class for {@link MappedSimplePropertyType}s that contain constant string
042 * values.
043 *
044 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider</a>
045 * @author last edited by: $Author: mschneider $
046 *
047 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $
048 */
049 public class ConstantContent extends VirtualContent implements FunctionParam {
050
051 private String constant;
052
053 /**
054 * Initializes a newly created <code>ConstantContent</code> object so that it represents
055 * the given {@link String} value.
056 *
057 * @param constant
058 */
059 public ConstantContent( String constant ) {
060 this.constant = constant;
061 }
062
063 /**
064 * Returns false, because it makes no sense to use a constant as a sort criterion.
065 *
066 * @return false, because it makes no sense to use a constant as a sort criterion.
067 */
068 public boolean isSortable () {
069 return false;
070 }
071
072 /**
073 * Returns the constant {@link String} that this object contains.
074 *
075 * @return constant String that this object contains
076 */
077 public String getValue () {
078 return this.constant;
079 }
080 }