Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DefaultTruthExpr |
|
| 1.6;1.6 |
1 | /* | |
2 | * $Header$ | |
3 | * $Revision$ | |
4 | * $Date$ | |
5 | * | |
6 | * ==================================================================== | |
7 | * | |
8 | * Copyright 2000-2002 bob mcwhirter & James Strachan. | |
9 | * All rights reserved. | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions are | |
13 | * met: | |
14 | * | |
15 | * * Redistributions of source code must retain the above copyright | |
16 | * notice, this list of conditions and the following disclaimer. | |
17 | * | |
18 | * * Redistributions in binary form must reproduce the above copyright | |
19 | * notice, this list of conditions and the following disclaimer in the | |
20 | * documentation and/or other materials provided with the distribution. | |
21 | * | |
22 | * * Neither the name of the Jaxen Project nor the names of its | |
23 | * contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS | |
27 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
28 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
29 | * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | |
30 | * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
31 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
32 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
33 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
36 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
37 | * | |
38 | * ==================================================================== | |
39 | * This software consists of voluntary contributions made by many | |
40 | * individuals on behalf of the Jaxen Project and was originally | |
41 | * created by bob mcwhirter <bob@werken.com> and | |
42 | * James Strachan <jstrachan@apache.org>. For more information on the | |
43 | * Jaxen Project, please see <http://www.jaxen.org/>. | |
44 | * | |
45 | * $Id$ | |
46 | */ | |
47 | ||
48 | ||
49 | ||
50 | package org.jaxen.expr; | |
51 | ||
52 | import java.util.List; | |
53 | ||
54 | abstract class DefaultTruthExpr extends DefaultBinaryExpr | |
55 | { | |
56 | DefaultTruthExpr(Expr lhs, | |
57 | Expr rhs) | |
58 | { | |
59 | 2148 | super( lhs, |
60 | rhs ); | |
61 | 2148 | } |
62 | ||
63 | public String toString() | |
64 | { | |
65 | 0 | return "[(DefaultTruthExpr): " + getLHS() + ", " + getRHS() + "]"; |
66 | } | |
67 | ||
68 | protected boolean bothAreSets(Object lhs, | |
69 | Object rhs) | |
70 | { | |
71 | 6472 | return ( lhs instanceof List |
72 | && | |
73 | rhs instanceof List ); | |
74 | } | |
75 | ||
76 | protected boolean eitherIsSet(Object lhs, | |
77 | Object rhs) | |
78 | { | |
79 | 6438 | return ( lhs instanceof List |
80 | || | |
81 | rhs instanceof List ); | |
82 | } | |
83 | ||
84 | protected boolean isSet(Object obj) | |
85 | { | |
86 | 9744 | return ( obj instanceof List ); |
87 | } | |
88 | ||
89 | protected boolean isBoolean(Object obj) | |
90 | { | |
91 | 9552 | return ( obj instanceof Boolean ); |
92 | } | |
93 | ||
94 | protected boolean setIsEmpty( List set ) | |
95 | { | |
96 | 5684 | return (set == null || set.size() == 0); |
97 | } | |
98 | ||
99 | protected boolean eitherIsBoolean(Object lhs, | |
100 | Object rhs) | |
101 | { | |
102 | 4372 | return ( lhs instanceof Boolean |
103 | || | |
104 | rhs instanceof Boolean ); | |
105 | } | |
106 | ||
107 | protected boolean bothAreBoolean(Object lhs, | |
108 | Object rhs) | |
109 | { | |
110 | 0 | return ( lhs instanceof Boolean |
111 | && | |
112 | rhs instanceof Boolean ); | |
113 | } | |
114 | ||
115 | protected boolean eitherIsNumber(Object lhs, | |
116 | Object rhs) | |
117 | { | |
118 | 8654 | return ( lhs instanceof Number |
119 | || | |
120 | rhs instanceof Number ); | |
121 | } | |
122 | ||
123 | } | |
124 |