Dynamic addition to JTree

Question

HI all.Im a little frustrated.im emulating the structure of an xml file in a jtree.but what im trying to do is add a node to another node, when a button is clicked.the only problem im having is retrieving a particular node, whether it be a child or sub-child etc.
i have looked at the getIndexOfChild method of defaultTreeModel.but the problem is that when the user creates a child node (ive already created the root node) and wants to add it as a sub-child of another child node, it's here i have the prob.
i have
1 <-- root node
| 2 <-- child of 1
| | 3 <-- child of 2
| | |
1even though i created node 2 like so new DefaultMutableTreeNode("some name"); and i know the name i supplied to it in the constructor, how can i retrieve it again, so i can append another child onto this child.plz help (i dont want code)
thanks

Answer 1

So in the worst
case you could look at all the nodes in the tree, and
your problem is reduced to being able to recognize
the node when you see it.
That isn't a particularly good way, can i ask why this isnt a particularly good way?
here is what i ended up doing,
if(rowNumber == -1) {
                    //Create a new root node, for the very
                    //first entry.
                    rootNode = new DefaultMutableTreeNode(componentName);
                    dTreeModel = new DefaultTreeModel(rootNode);
                    dtm.addRow(new Object[] { componentName.trim(), new Boolean(false), new Boolean(false), new Boolean(false)});
                    rowNumber++;
                    v.add(rootNode);
                    drawTheHierarchy();
               else {
                    //we check to see if this variable is
                    //an attribute or a child of another component
                    //by scanning down through all the rows of table.
                    for(int     i = 0; i < rowCount; i++) {
                         //If user has checked one of the "Element OF"
                         //checkboxes:
                         String nameOfParent = getParentNames(i);
                         if(!nameOfParent.equals("null")) {
                              //get the index of the element with
                              //the name of 'component name' in the vector.
                              for(int j = 0; j < v.size(); j++) {
                                   //Get a string representation of the node
                                   //to allow comparison.
                                   String nodeStringRepresentation = v.get(j).toString();
                                   if(nameOfParent.equals(nodeStringRepresentation)) {
                                        //get the node from the vector
                                        DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) v.get(j);
                                        //create a child node
                                        DefaultMutableTreeNode childNode =
                                                  new DefaultMutableTreeNode(componentName);
                                        //add a new node to this node.
                                        selectedNode.add(childNode);
                                        //and add to the vector.
                                        v.add(childNode);
                    }