1 /* 2 * $Header: /home/projects/jaxen/scm/jaxen/src/java/main/org/jaxen/pattern/NodeTypeTest.java,v 1.8 2006/02/05 21:47:42 elharo Exp $ 3 * $Revision: 1.8 $ 4 * $Date: 2006/02/05 21:47:42 $ 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: NodeTypeTest.java,v 1.8 2006/02/05 21:47:42 elharo Exp $ 46 */ 47 48 package org.jaxen.pattern; 49 50 import org.jaxen.Context; 51 52 /*** <p><code>NodeTypeTest</code> matches if the node is of a certain type 53 * such as element, attribute, comment, text, processing instruction and so forth.</p> 54 * 55 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> 56 * @version $Revision: 1.8 $ 57 */ 58 public class NodeTypeTest extends NodeTest { 59 60 public static final NodeTypeTest DOCUMENT_TEST 61 = new NodeTypeTest( DOCUMENT_NODE ); 62 63 public static final NodeTypeTest ELEMENT_TEST 64 = new NodeTypeTest( ELEMENT_NODE ); 65 66 public static final NodeTypeTest ATTRIBUTE_TEST 67 = new NodeTypeTest( ATTRIBUTE_NODE ); 68 69 public static final NodeTypeTest COMMENT_TEST 70 = new NodeTypeTest( COMMENT_NODE ); 71 72 public static final NodeTypeTest TEXT_TEST 73 = new NodeTypeTest( TEXT_NODE ); 74 75 public static final NodeTypeTest PROCESSING_INSTRUCTION_TEST 76 = new NodeTypeTest( PROCESSING_INSTRUCTION_NODE ); 77 78 public static final NodeTypeTest NAMESPACE_TEST 79 = new NodeTypeTest( NAMESPACE_NODE ); 80 81 82 private short nodeType; 83 84 public NodeTypeTest(short nodeType) 85 { 86 this.nodeType = nodeType; 87 } 88 89 /*** @return true if the pattern matches the given node 90 */ 91 public boolean matches( Object node, Context context ) 92 { 93 return nodeType == context.getNavigator().getNodeType( node ); 94 } 95 96 public double getPriority() 97 { 98 return -0.5; 99 } 100 101 102 public short getMatchType() 103 { 104 return nodeType; 105 } 106 107 public String getText() 108 { 109 switch (nodeType) 110 { 111 case ELEMENT_NODE: 112 return "child()"; 113 case ATTRIBUTE_NODE: 114 return "@*"; 115 case NAMESPACE_NODE: 116 return "namespace()"; 117 case DOCUMENT_NODE: 118 return "/"; 119 case COMMENT_NODE: 120 return "comment()"; 121 case TEXT_NODE: 122 return "text()"; 123 case PROCESSING_INSTRUCTION_NODE: 124 return "processing-instruction()"; 125 } 126 return ""; 127 } 128 129 public String toString() 130 { 131 return super.toString() + "[ type: " + nodeType + " ]"; 132 } 133 }