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1
7 package com.tonbeller.wcf.tree;
8
9 class TestModel extends AbstractTreeModel {
10 N root;
11 TestModel(N root) {
12 this.root = root;
13 }
14 public Object  [] getRoots() {
15 return new Object [] { root };
16 }
17 public boolean hasChildren(Object node) {
18 return ((N) node).children.size() > 0;
19 }
20 public Object [] getChildren(Object node) {
21 return ((N) node).children.toArray();
22 }
23 public Object getParent(Object node) {
24 return ((N) node).parent;
25 }
26
27 public static String print(TreeModel tm) {
28 StringBuffer sb = new StringBuffer ();
29 Object [] roots = tm.getRoots();
30 print(tm, sb, roots);
31 return sb.toString();
32 }
33
34 public void fireModelChanged() {
35 super.fireModelChanged();
36 }
37
38 private static void print(TreeModel tm, StringBuffer sb, Object [] nodes) {
39 for (int i = 0; i < nodes.length; i++) {
40 N n = (N) nodes[i];
41 sb.append(n.getLabel());
42 if (tm.hasChildren(n)) {
43 sb.append("[");
44 print(tm, sb, tm.getChildren(n));
45 sb.append("]");
46 }
47 if (i < nodes.length - 1)
48 sb.append(",");
49 }
50 }
51
52 public N getRoot() {
53 return root;
54 }
55
56 public void setRoot(N n) {
57 root = n;
58 fireModelChanged();
59 }
60
61 } |
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