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16 package org.apache.commons.jxpath.ri.model.container;
17
18 import java.util.Locale  ;
19
20 import org.apache.commons.jxpath.Container;
21 import org.apache.commons.jxpath.ri.QName;
22 import org.apache.commons.jxpath.ri.compiler.NodeTest;
23 import org.apache.commons.jxpath.ri.model.NodeIterator;
24 import org.apache.commons.jxpath.ri.model.NodePointer;
25 import org.apache.commons.jxpath.util.ValueUtils;
26
27
35 public class ContainerPointer extends NodePointer {
36 private Container container;
37 private NodePointer valuePointer;
38
39 public ContainerPointer(Container container, Locale locale) {
40 super(null, locale);
41 this.container = container;
42 }
43
44 public ContainerPointer(NodePointer parent, Container container) {
45 super(parent);
46 this.container = container;
47 }
48
49
52 public boolean isContainer() {
53 return true;
54 }
55
56 public QName getName() {
57 return null;
58 }
59
60 public Object getBaseValue() {
61 return container;
62 }
63
64 public boolean isCollection() {
65 Object value = getBaseValue();
66 return value != null && ValueUtils.isCollection(value);
67 }
68
69 public int getLength() {
70 Object value = getBaseValue();
71 if (value == null) {
72 return 1;
73 }
74 return ValueUtils.getLength(value);
75 }
76
77 public boolean isLeaf() {
78 return getValuePointer().isLeaf();
79 }
80
81 public Object getImmediateNode() {
82 Object value = getBaseValue();
83 if (index != WHOLE_COLLECTION) {
84 if (index >= 0 && index < getLength()) {
85 return ValueUtils.getValue(value, index);
86 }
87 else {
88 return null;
89 }
90 }
91 else {
92 return ValueUtils.getValue(value);
93 }
94 }
95
96 public void setValue(Object value) {
97 container.setValue(value);
99 }
100
101 public NodePointer getImmediateValuePointer() {
102 if (valuePointer == null) {
103 Object value = getImmediateNode();
104 valuePointer =
105 NodePointer.newChildNodePointer(this, getName(), value);
106 }
107 return valuePointer;
108 }
109
110 public int hashCode() {
111 return System.identityHashCode(container) + index;
112 }
113
114 public boolean equals(Object object) {
115 if (object == this) {
116 return true;
117 }
118
119 if (!(object instanceof ContainerPointer)) {
120 return false;
121 }
122
123 ContainerPointer other = (ContainerPointer) object;
124 return container == other.container && index == other.index;
125 }
126
127 public NodeIterator childIterator(
128 NodeTest test,
129 boolean reverse,
130 NodePointer startWith)
131 {
132 return getValuePointer().childIterator(test, reverse, startWith);
133 }
134
135 public NodeIterator attributeIterator(QName name) {
136 return getValuePointer().attributeIterator(name);
137 }
138
139 public NodeIterator namespaceIterator() {
140 return getValuePointer().namespaceIterator();
141 }
142
143 public NodePointer namespacePointer(String namespace) {
144 return getValuePointer().namespacePointer(namespace);
145 }
146
147 public boolean testNode(NodeTest nodeTest) {
148 return getValuePointer().testNode(nodeTest);
149 }
150
151 public int compareChildNodePointers(
152 NodePointer pointer1,
153 NodePointer pointer2)
154 {
155 return pointer1.getIndex() - pointer2.getIndex();
156 }
157
158 public String getNamespaceURI(String prefix) {
159 return getValuePointer().getNamespaceURI(prefix);
160 }
161
162 public String asPath() {
163 if (parent != null) {
164 return parent.asPath();
165 }
166 return "/";
167 }
168 } |
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