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1
7
8 package org.dom4j.bean;
9
10 import java.util.AbstractList  ;
11
12 import org.dom4j.Attribute;
13 import org.dom4j.QName;
14
15
24 public class BeanAttributeList extends AbstractList {
25
26 private BeanElement parent;
27
28
29 private BeanMetaData beanMetaData;
30
31
32 private BeanAttribute[] attributes;
33
34 public BeanAttributeList(BeanElement parent, BeanMetaData beanMetaData) {
35 this.parent = parent;
36 this.beanMetaData = beanMetaData;
37 this.attributes = new BeanAttribute[beanMetaData.attributeCount()];
38 }
39
40 public BeanAttributeList(BeanElement parent) {
41 this.parent = parent;
42
43 Object data = parent.getData();
44 Class beanClass = (data != null) ? data.getClass() : null;
45 this.beanMetaData = BeanMetaData.get(beanClass);
46 this.attributes = new BeanAttribute[beanMetaData.attributeCount()];
47 }
48
49 public Attribute attribute(String name) {
50 int index = beanMetaData.getIndex(name);
51
52 return attribute(index);
53 }
54
55 public Attribute attribute(QName qname) {
56 int index = beanMetaData.getIndex(qname);
57
58 return attribute(index);
59 }
60
61 public BeanAttribute attribute(int index) {
62 if ((index >= 0) && (index <= attributes.length)) {
63 BeanAttribute attribute = attributes[index];
64
65 if (attribute == null) {
66 attribute = createAttribute(parent, index);
67 attributes[index] = attribute;
68 }
69
70 return attribute;
71 }
72
73 return null;
74 }
75
76 public BeanElement getParent() {
77 return parent;
78 }
79
80 public QName getQName(int index) {
81 return beanMetaData.getQName(index);
82 }
83
84 public Object getData(int index) {
85 return beanMetaData.getData(index, parent.getData());
86 }
87
88 public void setData(int index, Object data) {
89 beanMetaData.setData(index, parent.getData(), data);
90 }
91
92 public int size() {
95 return attributes.length;
96 }
97
98 public Object get(int index) {
99 BeanAttribute attribute = attributes[index];
100
101 if (attribute == null) {
102 attribute = createAttribute(parent, index);
103 attributes[index] = attribute;
104 }
105
106 return attribute;
107 }
108
109 public boolean add(Object object) {
110 throw new UnsupportedOperationException ("add(Object) unsupported");
111 }
112
113 public void add(int index, Object object) {
114 throw new UnsupportedOperationException ("add(int,Object) unsupported");
115 }
116
117 public Object set(int index, Object object) {
118 throw new UnsupportedOperationException ("set(int,Object) unsupported");
119 }
120
121 public boolean remove(Object object) {
122 return false;
123 }
124
125 public Object remove(int index) {
126 BeanAttribute attribute = (BeanAttribute) get(index);
127 Object oldValue = attribute.getValue();
128 attribute.setValue(null);
129
130 return oldValue;
131 }
132
133 public void clear() {
134 for (int i = 0, size = attributes.length; i < size; i++) {
135 BeanAttribute attribute = attributes[i];
136
137 if (attribute != null) {
138 attribute.setValue(null);
139 }
140 }
141 }
142
143 protected BeanAttribute createAttribute(BeanElement element, int index) {
146 return new BeanAttribute(this, index);
147 }
148 }
149
150
186 |
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