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


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 2.6.2 xf:ceiling
30 2.6.2.1 Signature
31 xf:ceiling(double $srcval) => integer
32
33 2.6.2.2 Parameters
34 $srcval — static type is double
35
36 2.6.2.3 Semantics
37 Returns the smallest (closest to negative infinity) number that is not smaller than the value of
38 $srcvaland that is an integer.
39
40 2.6.2.4 Examples
41 xf:ceiling(10.5) returns 11.
42
43 xf:ceiling(-10.5) returns -10.
44  */
45 public final class XfCeiling extends Xfunction_Integer
46 {
47
48     private static final String JavaDoc RCSRevision = "$Revision: 1.3 $";
49     private static final String JavaDoc RCSName = "$Name: $";
50
51
52     public XfCeiling()
53     {
54       super("XfCeiling");
55     }
56
57     public XfCeiling(Expression arg )
58     {
59       super("XfCeiling");
60       setArgument(0,arg);
61     }
62
63     public SqlExpression accept(org.xquark.extractor.algebra.GenSqlVisitor visitor)
64     {
65         return visitor.visit(this);
66     }
67
68     public void accept(org.xquark.extractor.algebra.AlgebraVisitor visitor)
69     {
70         visitor.visit(this);
71     }
72 }
73
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