1 /*
2 * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultPredicated.java,v 1.5 2003/06/29 18:05:40 ssanders Exp $
3 * $Revision: 1.5 $
4 * $Date: 2003/06/29 18:05:40 $
5 *
6 * ====================================================================
7 *
8 * Copyright (C) 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
13 * are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer.
17 *
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions, and the disclaimer that follows
20 * these conditions in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * 3. The name "Jaxen" must not be used to endorse or promote products
24 * derived from this software without prior written permission. For
25 * written permission, please contact license@jaxen.org.
26 *
27 * 4. Products derived from this software may not be called "Jaxen", nor
28 * may "Jaxen" appear in their name, without prior written permission
29 * from the Jaxen Project Management (pm@jaxen.org).
30 *
31 * In addition, we request (but do not require) that you include in the
32 * end-user documentation provided with the redistribution and/or in the
33 * software itself an acknowledgement equivalent to the following:
34 * "This product includes software developed by the
35 * Jaxen Project (http://www.jaxen.org/)."
36 * Alternatively, the acknowledgment may be graphical using the logos
37 * available at http://www.jaxen.org/
38 *
39 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
40 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
42 * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT
43 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
45 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
46 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
47 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
48 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
49 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * ====================================================================
53 * This software consists of voluntary contributions made by many
54 * individuals on behalf of the Jaxen Project and was originally
55 * created by bob mcwhirter <bob@werken.com> and
56 * James Strachan <jstrachan@apache.org>. For more information on the
57 * Jaxen Project, please see <http://www.jaxen.org/>.
58 *
59 * $Id: DefaultPredicated.java,v 1.5 2003/06/29 18:05:40 ssanders Exp $
60 */
61
62
63
64 package org.jaxen.expr;
65
66 import java.util.ArrayList;
67 import java.util.Iterator;
68 import java.util.List;
69
70 class DefaultPredicated
71 {
72 private List predicates;
73
74 protected DefaultPredicated()
75 {
76 this.predicates = new ArrayList();
77 }
78
79 public List getPredicates()
80 {
81 return this.predicates;
82 }
83
84 public void addPredicate(Predicate predicate)
85 {
86 getPredicates().add( predicate );
87 }
88
89 public String getText()
90 {
91 StringBuffer buf = new StringBuffer();
92 Iterator predIter = getPredicates().iterator();
93
94 while ( predIter.hasNext() )
95 {
96 buf.append( ((Predicate)predIter.next()).getText() );
97 }
98
99 return buf.toString();
100 }
101
102 public String toString()
103 {
104 StringBuffer buf = new StringBuffer();
105 Iterator predIter = getPredicates().iterator();
106
107 while( predIter.hasNext() )
108 {
109 buf.append( predIter.next().toString() );
110
111 if ( predIter.hasNext() )
112 {
113 buf.append(", ");
114 }
115 }
116
117 return buf.toString();
118 }
119
120 public void simplifyAllPredicates()
121 {
122 Iterator predIter = getPredicates().iterator();
123 Predicate eachPred = null;
124
125 while ( predIter.hasNext() )
126 {
127 eachPred = (Predicate) predIter.next();
128
129 eachPred.simplify();
130 }
131 }
132 }