01: /*
02: * The contents of this file are subject to the
03: * Mozilla Public License Version 1.1 (the "License");
04: * you may not use this file except in compliance with the License.
05: * You may obtain a copy of the License at http://www.mozilla.org/MPL/
06: *
07: * Software distributed under the License is distributed on an "AS IS"
08: * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
09: * See the License for the specific language governing rights and
10: * limitations under the License.
11: *
12: * The Initial Developer of the Original Code is Simulacra Media Ltd.
13: * Portions created by Simulacra Media Ltd are Copyright (C) Simulacra Media Ltd, 2004.
14: *
15: * All Rights Reserved.
16: *
17: * Contributor(s):
18: */
19: package org.openharmonise.commons.dsi.dml.functions;
20:
21: import org.openharmonise.commons.dsi.*;
22: import org.openharmonise.commons.dsi.dml.*;
23:
24: /**
25: * Representation of the length SQL function.
26: *
27: * @author Michael Bell
28: * @version $Revision: 1.1 $
29: *
30: */
31: public class Length implements Function {
32:
33: /**
34: * Object to act as argument of length operation.
35: */
36: private Object m_lengthObj = null;
37:
38: /**
39: * Constructs a length function which will operate on a column reference.
40: *
41: * @param colref the column reference
42: */
43: public Length(ColumnRef colref) {
44: m_lengthObj = colref;
45: }
46:
47: /**
48: * Constructs a length function which will operate on a string.
49: *
50: * @param str the string argument
51: */
52: public Length(String str) {
53: m_lengthObj = str;
54: }
55:
56: /**
57: * Returns a string or column ref for the argument of the 'length' function.
58: *
59: * @return a string or column ref for the argument of the 'length' function
60: */
61: public Object getLengthObject() {
62: return m_lengthObj;
63: }
64: }
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