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1
7 package org.jboss.cache.aop;
8
9 import org.jboss.cache.Fqn;
10 import org.jboss.cache.Node;
11 import org.jboss.util.NestedRuntimeException;
12
13 import java.util.AbstractList  ;
14 import java.util.Map ;
15
16
21
22 public class CachedList extends AbstractList
23 {
24
25 protected TreeCacheAop cache;
26 protected Fqn fqn;
27
28 CachedList(TreeCacheAop cache, Fqn fqn)
29 {
30 this.cache = cache;
31 this.fqn = fqn;
32 }
33
34 protected Node getNode()
35 {
36 try {
37 return cache.get(fqn);
38 } catch (Exception e) {
39 throw new NestedRuntimeException(e);
40 }
41 }
42
43 public Object get(int index)
44 {
45 try {
46 return cache.getObject(new Fqn(fqn, new Integer (index)));
48 } catch (Exception e) {
49 throw new NestedRuntimeException(e);
50 }
51 }
52
53 public int size()
54 {
55 Map children = getNode().getChildren();
56 return children == null ? 0 : children.size();
57 }
58
59 public Object set(int index, Object element)
60 {
61 try {
62 if (index < 0 || index >= size())
63 throw new IndexOutOfBoundsException ();
64 Object oldValue = get(index);
65 return cache.putObject(new Fqn(fqn, new Integer (index)), element);
67 } catch (Exception e) {
68 throw new NestedRuntimeException(e);
69 }
70 }
71
72 public void add(int index, Object element)
73 {
74 try {
75 if (index < 0 || index > size())
76 throw new IndexOutOfBoundsException ();
77 for (int i = size(); i > index; i--) {
78 Object obj = cache.removeObject(new Fqn(fqn, new Integer (i - 1)));
80 cache.putObject(new Fqn(fqn, new Integer (i)), obj);
82 }
83 cache.putObject(new Fqn(fqn, new Integer (index)), element);
85 } catch (Exception e) {
86 throw new NestedRuntimeException(e);
87 }
88
89 }
90
91 public boolean remove(Object o)
92 {
93 return super.remove(o);
94 }
95
96 public Object remove(int index)
97 {
98 try {
99 if (index < 0 || index >= size())
100 throw new IndexOutOfBoundsException ();
101 Object result = cache.removeObject(new Fqn(fqn, new Integer (index)));
103 int size = size() - 1;
104 for (int i = index; i < size; i++) {
105 Object obj = cache.removeObject(new Fqn(fqn, new Integer (i + 1)));
107 cache.putObject(new Fqn(fqn, new Integer (i)), obj);
109 }
110 return result;
111 } catch (Exception e) {
112 throw new NestedRuntimeException(e);
113 }
114
115 }
116
117 }
118 |
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