Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DefaultMinusExpr |
|
| 1.0;1 |
1 | /* | |
2 | * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultMinusExpr.java,v 1.14 2006/11/30 18:49:26 elharo Exp $ | |
3 | * $Revision: 1.14 $ | |
4 | * $Date: 2006/11/30 18:49:26 $ | |
5 | * | |
6 | * ==================================================================== | |
7 | * | |
8 | * Copyright 2000-2002 bob mcwhirter & James Strachan. | |
9 | * All rights reserved. | |
10 | * | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or without | |
13 | * modification, are permitted provided that the following conditions are | |
14 | * met: | |
15 | * | |
16 | * * Redistributions of source code must retain the above copyright | |
17 | * notice, this list of conditions and the following disclaimer. | |
18 | * | |
19 | * * Redistributions in binary form must reproduce the above copyright | |
20 | * notice, this list of conditions and the following disclaimer in the | |
21 | * documentation and/or other materials provided with the distribution. | |
22 | * | |
23 | * * Neither the name of the Jaxen Project nor the names of its | |
24 | * contributors may be used to endorse or promote products derived | |
25 | * from this software without specific prior written permission. | |
26 | * | |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
28 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
29 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
30 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | |
31 | * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
32 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
33 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
34 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
35 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
36 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
37 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
38 | * | |
39 | * ==================================================================== | |
40 | * This software consists of voluntary contributions made by many | |
41 | * individuals on behalf of the Jaxen Project and was originally | |
42 | * created by bob mcwhirter <bob@werken.com> and | |
43 | * James Strachan <jstrachan@apache.org>. For more information on the | |
44 | * Jaxen Project, please see <http://www.jaxen.org/>. | |
45 | * | |
46 | * $Id: DefaultMinusExpr.java,v 1.14 2006/11/30 18:49:26 elharo Exp $ | |
47 | */ | |
48 | ||
49 | ||
50 | package org.jaxen.expr; | |
51 | ||
52 | import org.jaxen.Context; | |
53 | import org.jaxen.JaxenException; | |
54 | import org.jaxen.function.NumberFunction; | |
55 | ||
56 | class DefaultMinusExpr extends DefaultAdditiveExpr | |
57 | { | |
58 | /** | |
59 | * | |
60 | */ | |
61 | private static final long serialVersionUID = 6468563688098527800L; | |
62 | ||
63 | DefaultMinusExpr(Expr lhs, | |
64 | Expr rhs) | |
65 | { | |
66 | 208 | super( lhs, |
67 | rhs ); | |
68 | 208 | } |
69 | ||
70 | public String getOperator() | |
71 | { | |
72 | 288 | return "-"; |
73 | } | |
74 | ||
75 | public Object evaluate(Context context) throws JaxenException | |
76 | { | |
77 | 310 | Number lhsValue = NumberFunction.evaluate( getLHS().evaluate( context ), |
78 | context.getNavigator() ); | |
79 | 310 | Number rhsValue = NumberFunction.evaluate( getRHS().evaluate( context ), |
80 | context.getNavigator() ); | |
81 | ||
82 | 310 | double result = lhsValue.doubleValue() - rhsValue.doubleValue(); |
83 | 310 | return new Double( result ); |
84 | } | |
85 | ||
86 | } |