1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 package org.apache.commons.jxpath.ri.model.dom;
17
18 import org.apache.commons.jxpath.ri.Compiler;
19 import org.apache.commons.jxpath.ri.QName;
20 import org.apache.commons.jxpath.ri.compiler.NodeTest;
21 import org.apache.commons.jxpath.ri.compiler.NodeTypeTest;
22 import org.apache.commons.jxpath.ri.model.NodePointer;
23 import org.apache.commons.jxpath.util.TypeUtils;
24 import org.w3c.dom.Attr;
25
26 /***
27 * A Pointer that points to a DOM node.
28 *
29 * @author Dmitri Plotnikov
30 * @version $Revision: 1.15 $ $Date: 2004/04/01 02:55:32 $
31 */
32 public class DOMAttributePointer extends NodePointer {
33 private Attr attr;
34
35 public DOMAttributePointer(NodePointer parent, Attr attr) {
36 super(parent);
37 this.attr = attr;
38 }
39
40 public QName getName() {
41 return new QName(
42 DOMNodePointer.getPrefix(attr),
43 DOMNodePointer.getLocalName(attr));
44 }
45
46 public String getNamespaceURI() {
47 String prefix = DOMNodePointer.getPrefix(attr);
48 if (prefix == null) {
49 return null;
50 }
51 return parent.getNamespaceURI(prefix);
52 }
53
54 public Object getValue() {
55 String value = attr.getValue();
56 if (value == null) {
57 return null;
58 }
59 if (value.equals("") && !attr.getSpecified()) {
60 return null;
61 }
62 return value;
63 }
64
65 public Object getBaseValue() {
66 return attr;
67 }
68
69 public boolean isCollection() {
70 return false;
71 }
72
73 public int getLength() {
74 return 1;
75 }
76
77 public Object getImmediateNode() {
78 return attr;
79 }
80
81 public boolean isActual() {
82 return true;
83 }
84
85 public boolean isLeaf() {
86 return true;
87 }
88
89 public boolean testNode(NodeTest nodeTest) {
90 return nodeTest == null
91 || ((nodeTest instanceof NodeTypeTest)
92 && ((NodeTypeTest) nodeTest).getNodeType()
93 == Compiler.NODE_TYPE_NODE);
94 }
95
96 /***
97 * Sets the value of this attribute.
98 */
99 public void setValue(Object value) {
100 attr.setValue((String) TypeUtils.convert(value, String.class));
101 }
102
103 public void remove() {
104 attr.getOwnerElement().removeAttributeNode(attr);
105 }
106
107 /***
108 */
109 public String asPath() {
110 StringBuffer buffer = new StringBuffer();
111 if (parent != null) {
112 buffer.append(parent.asPath());
113 if (buffer.length() == 0
114 || buffer.charAt(buffer.length() - 1) != '/') {
115 buffer.append('/');
116 }
117 }
118 buffer.append('@');
119 buffer.append(getName());
120 return buffer.toString();
121 }
122
123 public int hashCode() {
124 return System.identityHashCode(attr);
125 }
126
127 public boolean equals(Object object) {
128 if (object == this) {
129 return true;
130 }
131
132 if (!(object instanceof DOMAttributePointer)) {
133 return false;
134 }
135
136 DOMAttributePointer other = (DOMAttributePointer) object;
137 return attr == other.attr;
138 }
139
140 public int compareChildNodePointers(
141 NodePointer pointer1,
142 NodePointer pointer2)
143 {
144
145 return 0;
146 }
147 }