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NodeTypeTest |
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1 | /* |
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2 | * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/pattern/NodeTypeTest.java,v 1.7 2005/06/28 13:44:44 elharo Exp $ |
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3 | * $Revision: 1.7 $ |
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4 | * $Date: 2005/06/28 13:44:44 $ |
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5 | * |
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6 | * ==================================================================== |
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7 | * |
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8 | * Copyright (C) 2000-2002 bob mcwhirter & James Strachan. |
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9 | * All rights reserved. |
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10 | * |
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11 | * Redistribution and use in source and binary forms, with or without |
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12 | * modification, are permitted provided that the following conditions |
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13 | * are met: |
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14 | * |
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15 | * 1. Redistributions of source code must retain the above copyright |
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16 | * notice, this list of conditions, and the following disclaimer. |
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17 | * |
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18 | * 2. Redistributions in binary form must reproduce the above copyright |
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19 | * notice, this list of conditions, and the disclaimer that follows |
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20 | * these conditions in the documentation and/or other materials |
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21 | * provided with the distribution. |
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22 | * |
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23 | * 3. The name "Jaxen" must not be used to endorse or promote products |
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24 | * derived from this software without prior written permission. For |
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25 | * written permission, please contact license@jaxen.org. |
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26 | * |
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27 | * 4. Products derived from this software may not be called "Jaxen", nor |
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28 | * may "Jaxen" appear in their name, without prior written permission |
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29 | * from the Jaxen Project Management (pm@jaxen.org). |
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30 | * |
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31 | * In addition, we request (but do not require) that you include in the |
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32 | * end-user documentation provided with the redistribution and/or in the |
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33 | * software itself an acknowledgement equivalent to the following: |
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34 | * "This product includes software developed by the |
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35 | * Jaxen Project <http://www.jaxen.org/>." |
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36 | * Alternatively, the acknowledgment may be graphical using the logos |
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37 | * available at http://www.jaxen.org/ |
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38 | * |
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39 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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40 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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41 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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42 | * DISCLAIMED. IN NO EVENT SHALL THE Jaxen AUTHORS OR THE PROJECT |
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43 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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45 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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46 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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47 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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48 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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49 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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50 | * SUCH DAMAGE. |
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51 | * |
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52 | * ==================================================================== |
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53 | * This software consists of voluntary contributions made by many |
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54 | * individuals on behalf of the Jaxen Project and was originally |
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55 | * created by bob mcwhirter <bob@werken.com> and |
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56 | * James Strachan <jstrachan@apache.org>. For more information on the |
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57 | * Jaxen Project, please see <http://www.jaxen.org/>. |
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58 | * |
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59 | * $Id: NodeTypeTest.java,v 1.7 2005/06/28 13:44:44 elharo Exp $ |
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60 | */ |
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61 | ||
62 | package org.jaxen.pattern; |
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63 | ||
64 | import org.jaxen.Context; |
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65 | ||
66 | /** <p><code>NodeTypeTest</code> matches if the node is of a certain type |
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67 | * such as element, attribute, comment, text, processing instruction and so forth.</p> |
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68 | * |
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69 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
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70 | * @version $Revision: 1.7 $ |
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71 | */ |
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72 | public class NodeTypeTest extends NodeTest { |
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73 | ||
74 | 12 | public static final NodeTypeTest DOCUMENT_TEST |
75 | = new NodeTypeTest( DOCUMENT_NODE ); |
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76 | ||
77 | 12 | public static final NodeTypeTest ELEMENT_TEST |
78 | = new NodeTypeTest( ELEMENT_NODE ); |
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79 | ||
80 | 12 | public static final NodeTypeTest ATTRIBUTE_TEST |
81 | = new NodeTypeTest( ATTRIBUTE_NODE ); |
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82 | ||
83 | 12 | public static final NodeTypeTest COMMENT_TEST |
84 | = new NodeTypeTest( COMMENT_NODE ); |
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85 | ||
86 | 12 | public static final NodeTypeTest TEXT_TEST |
87 | = new NodeTypeTest( TEXT_NODE ); |
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88 | ||
89 | 12 | public static final NodeTypeTest PROCESSING_INSTRUCTION_TEST |
90 | = new NodeTypeTest( PROCESSING_INSTRUCTION_NODE ); |
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91 | ||
92 | 12 | public static final NodeTypeTest NAMESPACE_TEST |
93 | = new NodeTypeTest( NAMESPACE_NODE ); |
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94 | ||
95 | ||
96 | private short nodeType; |
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97 | ||
98 | public NodeTypeTest(short nodeType) |
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99 | 84 | { |
100 | 84 | this.nodeType = nodeType; |
101 | 84 | } |
102 | ||
103 | /** @return true if the pattern matches the given node |
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104 | */ |
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105 | public boolean matches( Object node, Context context ) |
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106 | { |
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107 | 0 | return nodeType == context.getNavigator().getNodeType( node ); |
108 | } |
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109 | ||
110 | public double getPriority() |
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111 | { |
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112 | 18 | return -0.5; |
113 | } |
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114 | ||
115 | ||
116 | public short getMatchType() |
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117 | { |
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118 | 18 | return nodeType; |
119 | } |
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120 | ||
121 | public String getText() |
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122 | { |
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123 | 0 | switch (nodeType) |
124 | { |
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125 | case ELEMENT_NODE: |
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126 | 0 | return "child()"; |
127 | case ATTRIBUTE_NODE: |
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128 | 0 | return "@*"; |
129 | case NAMESPACE_NODE: |
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130 | 0 | return "namespace()"; |
131 | case DOCUMENT_NODE: |
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132 | 0 | return "/"; |
133 | case COMMENT_NODE: |
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134 | 0 | return "comment()"; |
135 | case TEXT_NODE: |
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136 | 0 | return "text()"; |
137 | case PROCESSING_INSTRUCTION_NODE: |
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138 | 0 | return "processing-instruction()"; |
139 | } |
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140 | 0 | return ""; |
141 | } |
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142 | ||
143 | public String toString() |
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144 | { |
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145 | 0 | return super.toString() + "[ type: " + nodeType + " ]"; |
146 | } |
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147 | } |