1 /*
2 * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/expr/DefaultProcessingInstructionNodeStep.java,v 1.14 2005/09/06 13:41:01 elharo Exp $
3 * $Revision: 1.14 $
4 * $Date: 2005/09/06 13:41:01 $
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: DefaultProcessingInstructionNodeStep.java,v 1.14 2005/09/06 13:41:01 elharo Exp $
60 */
61
62
63
64 package org.jaxen.expr;
65
66 import org.jaxen.ContextSupport;
67 import org.jaxen.Navigator;
68 import org.jaxen.expr.iter.IterableAxis;
69
70 /***
71 * @deprecated this class will become non-public in the future;
72 * use the interface instead
73 */
74 public class DefaultProcessingInstructionNodeStep extends DefaultStep
75 implements ProcessingInstructionNodeStep
76 {
77 private String name;
78
79 public DefaultProcessingInstructionNodeStep(IterableAxis axis,
80 String name,
81 PredicateSet predicateSet)
82 {
83 super( axis, predicateSet );
84
85 this.name = name;
86 }
87
88 public String getName()
89 {
90 return this.name;
91 }
92
93 public boolean matches(Object node,
94 ContextSupport support)
95 {
96 Navigator nav = support.getNavigator();
97
98 boolean isPi = nav.isProcessingInstruction( node );
99
100 if ( isPi )
101 {
102 String name = getName();
103
104 if ( name == null || name.length() == 0 )
105 {
106 return true;
107 }
108 else
109 {
110 return name.equals( nav.getProcessingInstructionTarget( node ) );
111 }
112 }
113
114 return false;
115 }
116
117 public void accept(Visitor visitor)
118 {
119 visitor.visit(this);
120 }
121 }