Search Jtree Problem (Easy Duke dollars)

Question

Hi all,
I know that in order to find a node is a tree I can use getNextMatch method given by JTree. However, the problem here is that I want to serach for a child node and I don't know how to... for example...
Root
- Child 1
- Child 2
- Child 3
If I search for the root node I would simply do
getNextMatch("R",0,Position.Bias.Forward);But what if I want to search for Child 1 or Child 3? What would be in my search string?

Answer 1

Hi,
To search for a node in a JTree, you may use the breadthFirstEnumeration() method of the DefaultMutableTreeNode and then iterate through that enumeration until the desired node is found or the node is not found.
You need to have a reference to the Root of the tree as a DefaultMutableTreeNode where the seacrh will begin.
Let's say that the desired node's data = desiredElement
DefaultMutableTreeNode root = new DefaultMutableTreeNode(.....);
java.util.Enumeration enum = root.breadthFirstEnumeration();
while(enum.hasMoreElements())
DefaultMutableTreeNode node = (DefaultMutableTreeNode) enum.nextElement();
if(node.getUserObject().equals(desiredElement))
//you have found the node in the tree
//you can get the parent using the getParent on this node as well
//if you want the search path as well
//if you reach here, the desired node is not in the tree
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