org.olat.core.util.tree
Class TreeHelper

java.lang.Object
  org.olat.core.util.tree.TreeHelper

public class TreeHelper
extends java.lang.Object

Description:
Helper methods for tree handling

Initial Date: 04.08.2005

Author:

gnaegi, Felix Jost

Constructor Summary

TreeHelper()

Method Summary

static java.lang.String	buildTreePath(TreeNode node)
static TreeNode	findNodeByUserObject(java.lang.Object userObject, TreeNode node) Depth-first traversal.
static void	makeTreeFlat(TreeNode node, java.util.List<TreeNode> outNodeList) from tree structure to a flat list
static TreeNode	resolveTreeNode(java.lang.String treePath, TreeModel treeModel)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TreeHelper

public TreeHelper()

Method Detail

findNodeByUserObject

public static TreeNode findNodeByUserObject(java.lang.Object userObject,
                                            TreeNode node)

Depth-first traversal.

Parameters:

nodeId -

node - the root node to start the search with

Returns:

the first treenode with the given user object or null if not found

resolveTreeNode

public static TreeNode resolveTreeNode(java.lang.String treePath,
                                       TreeModel treeModel)

buildTreePath

public static java.lang.String buildTreePath(TreeNode node)

makeTreeFlat

public static void makeTreeFlat(TreeNode node,
                                java.util.List<TreeNode> outNodeList)

from tree structure to a flat list

Parameters:

node -

outNodeList -