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Java > Open Source Codes > org > xquark > extractor > xfunctions > XfTime


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2003 Universite de Versailles Saint-Quentin.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.extractor.xfunctions;
24
25 import org.xquark.extractor.algebra.Expression;
26 import org.xquark.extractor.sql.SqlExpression;
27
28 /**
29 6.2.4 xf:time
30 xf:time(string $srcval) => time
31 If the value of $srcval conforms to the lexical representation of a time as defined in [XML Schema
32 Part 2: Datatypes], the constructor returns the time corresponding to that representation.
33 Otherwise, the constructor returns the error value as defined in [XQuery 1.0 and XPath 2.0 Data
34 Model].
35
36 6.2.4.1 Examples
37 xf:time("11:33:24") returns a time value corresponding to 33 minutes and 24 seconds past 11 AM in
38 an unspecified timezone.
39
40 xf:time("23:33:24.35-05:00") returns a time value corresponding to 33 minutes and 24.35 seconds
41 past 11 PM for a timezone which is 5 hours behind Coordinated Universal Time (UTC).
42  */
43 public final class XfTime extends XFunction
44 {
45
46     private static final String JavaDoc RCSRevision = "$Revision: 1.3 $";
47     private static final String JavaDoc RCSName = "$Name: $";
48
49
50     public XfTime()
51     {
52         super("XfTime");
53     }
54     /**
55     @param timeString
56     @roseuid 3BD191EB0105
57      */
58     public XfTime(Expression timeString)
59     {
60         super("XfTime");
61         setArgument(0,timeString);
62     }
63
64     /**
65     @param visitor
66     @return org.xquark.extractor.sql.SqlExpression
67     @throws org.xquark.extractor.common.SqlWrapperException
68     @roseuid 3BD1922B028E
69      */
70     public SqlExpression accept(org.xquark.extractor.algebra.GenSqlVisitor visitor)
71     {
72         return visitor.visit(this);
73     }
74
75     public void accept(org.xquark.extractor.algebra.AlgebraVisitor visitor)
76     {
77         visitor.visit(this);
78     }
79 }
80
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