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Java > Open Source Codes > org > apache > fop > fo > expr > CeilingFunction


1 /*
2  * $Id: CeilingFunction.java,v 1.2.2.1 2003/02/25 12:56:57 jeremias Exp $
3  * ============================================================================
4  * The Apache Software License, Version 1.1
5  * ============================================================================
6  *
7  * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without modifica-
10  * tion, are permitted provided that the following conditions are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
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19  * 3. The end-user documentation included with the redistribution, if any, must
20  * include the following acknowledgment: "This product includes software
21  * developed by the Apache Software Foundation (http://www.apache.org/)."
22  * Alternately, this acknowledgment may appear in the software itself, if
23  * and wherever such third-party acknowledgments normally appear.
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25  * 4. The names "FOP" and "Apache Software Foundation" must not be used to
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27  * written permission. For written permission, please contact
28  * apache@apache.org.
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30  * 5. Products derived from this software may not be called "Apache", nor may
31  * "Apache" appear in their name, without prior written permission of the
32  * Apache Software Foundation.
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44  * ============================================================================
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46  * This software consists of voluntary contributions made by many individuals
47  * on behalf of the Apache Software Foundation and was originally created by
48  * James Tauber <jtauber@jtauber.com>. For more information on the Apache
49  * Software Foundation, please see <http://www.apache.org/>.
50  */
51 package org.apache.fop.fo.expr;
52
53 import org.apache.fop.fo.Property;
54 import org.apache.fop.fo.NumberProperty;
55
56 class CeilingFunction extends FunctionBase {
57
58     public int nbArgs() {
59         return 1;
60     }
61
62     public Property eval(Property[] args,
63                          PropertyInfo pInfo) throws PropertyException {
64         Number JavaDoc dbl = args[0].getNumber();
65         if (dbl == null)
66             throw new PropertyException("Non number operand to ceiling function");
67         return new NumberProperty(Math.ceil(dbl.doubleValue()));
68     }
69
70 }
71
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