1 /*
2 * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultPredicate.java,v 1.13 2006/11/30 18:49:27 elharo Exp $
3 * $Revision: 1.13 $
4 * $Date: 2006/11/30 18:49:27 $
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: DefaultPredicate.java,v 1.13 2006/11/30 18:49:27 elharo Exp $
46 */
47
48
49
50 package org.jaxen.expr;
51
52 import org.jaxen.Context;
53 import org.jaxen.JaxenException;
54
55 class DefaultPredicate implements Predicate
56 {
57 /***
58 *
59 */
60 private static final long serialVersionUID = -4140068594075364971L;
61 private Expr expr;
62
63 DefaultPredicate(Expr expr)
64 {
65 setExpr( expr );
66 }
67
68 public Expr getExpr()
69 {
70 return this.expr;
71 }
72
73 public void setExpr(Expr expr)
74 {
75 this.expr = expr;
76 }
77
78 public String getText()
79 {
80 return "[" + getExpr().getText() + "]";
81 }
82
83 public String toString()
84 {
85 return "[(DefaultPredicate): " + getExpr() + "]";
86 }
87
88 public void simplify()
89 {
90 setExpr( getExpr().simplify() );
91 }
92
93 public Object evaluate(Context context) throws JaxenException
94 {
95 return getExpr().evaluate( context );
96 }
97
98 }