01: /* =============================================================
02: * SmallSQL : a free Java DBMS library for the Java(tm) platform
03: * =============================================================
04: *
05: * (C) Copyright 2004-2006, by Volker Berlin.
06: *
07: * Project Info: http://www.smallsql.de/
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * ---------------
28: * ExpressionFunctionLCase.java
29: * ---------------
30: * Author: Volker Berlin
31: *
32: * Created on 17.06.2006
33: */
34: package smallsql.database;
35:
36: /**
37: * @author Volker Berlin
38: */
39: public class ExpressionFunctionLCase extends
40: ExpressionFunctionReturnP1StringAndBinary {
41:
42: final int getFunction() {
43: return SQLTokenizer.LCASE;
44: }
45:
46: final boolean isNull() throws Exception {
47: return param1.isNull();
48: }
49:
50: final byte[] getBytes() throws Exception {
51: if (isNull())
52: return null;
53: return getString().getBytes();
54: }
55:
56: final String getString() throws Exception {
57: if (isNull())
58: return null;
59: return param1.getString().toLowerCase();
60: }
61: }
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