001 //$HeadURL: svn+ssh://mschneider@svn.wald.intevation.org/deegree/base/trunk/src/org/deegree/io/datastore/sql/wherebuilder/AbstractPropertyNode.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.sql.wherebuilder;
044
045 /**
046 * Part of a {@link SpecialCharString} -- represents an arbitrary character (in SQL: '_').
047 *
048 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
049 * @author last edited by: $Author: mschneider $
050 *
051 * @version $Revision: 6588 $, $Date: 2007-04-11 17:31:29 +0200 (Mi, 11 Apr 2007) $
052 */
053 final class SingleChar implements SpecialCharStringPart {
054
055 /**
056 * Returns an encoding that is suitable for arguments of "IS LIKE"-clauses in SQL.
057 * <p>
058 * This means:
059 * <ul>
060 * <li>wildCard: encoded as the '%'-character</li>
061 * <li>singleChar: encoded as the '_'-character</li>
062 * <li>escape: encoded as the '\'-character</li>
063 * </ul>
064 *
065 * @return encoded string
066 */
067 public String toSQLStyle() {
068 return "_";
069 }
070
071 /**
072 * Returns an encoding that is suitable for arguments of "IS LIKE"-clauses in SQL.
073 * <p>
074 * This means:
075 * <ul>
076 * <li>wildCard: encoded as the '%'-character</li>
077 * <li>singleChar: encoded as the '_'-character</li>
078 * <li>escape: encoded as the '\'-character</li>
079 * </ul>
080 *
081 * @param toLowerCase
082 * true means: convert to lowercase letters
083 * @return encoded string
084 */
085 public String toSQLStyle( boolean toLowerCase ) {
086 return "_";
087 }
088
089 @Override
090 public String toString() {
091 return "SingleChar";
092 }
093 }