1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   *
12   *
13   */
14  
15  package com.liferay.portal.kernel.util;
16  
17  import java.util.ArrayList;
18  import java.util.List;
19  
20  /**
21   * <a href="ListTree.java.html"><b><i>View Source</i></b></a>
22   *
23   * @author Shuyang Zhou
24   */
25  public class ListTree<T extends Comparable<T>> {
26  
27      public ListTree() {
28          this(null);
29      }
30  
31      public ListTree(T value) {
32          _rootNode = new TreeNode<T>(value);
33      }
34  
35      public List<TreeNode<T>> getChildNodes(TreeNode<T> node) {
36          List<TreeNode<T>> nodes = new ArrayList<TreeNode<T>>();
37  
38          getChildNodes(node, nodes);
39  
40          return nodes;
41      }
42  
43      public TreeNode<T> getRootNode() {
44          return _rootNode;
45      }
46  
47      protected void getChildNodes(TreeNode<T> node, List<TreeNode<T>> nodes) {
48          List<TreeNode<T>> childNodes = node.getChildNodes();
49  
50          nodes.addAll(childNodes);
51  
52          for (TreeNode<T> childNode : childNodes) {
53              getChildNodes(childNode, nodes);
54          }
55      }
56  
57      private final TreeNode<T> _rootNode;
58  
59  }