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19 package org.apache.myfaces.custom.tree2;
20
21 import java.util.HashSet;
22
23 public class TreeStateBase implements TreeState
24 {
25
26 private static final long serialVersionUID = -6767283932185878071L;
27 private HashSet _expandedNodes = new HashSet();
28 private boolean _transient = false;
29 private String _selected;
30
31
32 public boolean isNodeExpanded(String nodeId)
33 {
34 return (_expandedNodes.contains(nodeId)
35 }
36
37
38 public void toggleExpanded(String nodeId)
39 {
40 if (_expandedNodes.contains(nodeId))
41 {
42 _expandedNodes.remove(nodeId);
43 }
44 else
45 {
46 _expandedNodes.add(nodeId);
47 }
48 }
49
50
51 public boolean isTransient()
52 {
53 return _transient;
54 }
55
56
57 public void setTransient(boolean trans)
58 {
59 _transient = trans;
60 }
61
62
63 public void expandPath(String[] nodePath)
64 {
65 for (int i=0; i < nodePath.length; i++)
66 {
67 String nodeId = nodePath[i];
68 _expandedNodes.add(nodeId);
69 }
70 }
71
72
73 public void collapsePath(String[] nodePath)
74 {
75 for (int i=0; i < nodePath.length; i++)
76 {
77 String nodeId = nodePath[i];
78 _expandedNodes.remove(nodeId);
79 }
80 }
81
82 public void setSelected(String nodeId)
83 {
84 _selected = nodeId;
85 }
86
87 public boolean isSelected(String nodeId)
88 {
89 return nodeId.equals(_selected);
90 }
91 }