JTree Refresh

[BillyBob Smith]

My JTree is generated by a database query and also fire's events to run other querys but the database changes the values which affect my tree so I have to rebuild it periodically but I have a problem with if a node it selected and I rebuild the tree the tree resets to the state where all nodes are collasped and none selected.....
If Someone has some example code or any help for me ...

I have got the tree path i want to reset it to stores in a var but I cant make it set the selection
Thanks BillyBob

[Carlos Cuevas]

Whoops, this might jut be too late, but i just stteped into your query today, but anyways, here�s what I�ve acomplished when trying to solve the same thing... might work for someone

/**
     * Checks which nodes are visible throught the JTREE, reloads the tree,
     * and set those nodes visible again
     */
    public void reloadTree()
    {
        ObjectNode selectedNode = this.getSelectedNode();
        Vector allNodes = this.getNodes((ObjectNode)treeModel.getRoot());
Vector visibleNodes = new Vector();
for (int i=0; i<allNodes.size() ; i++ )
{
  if (this.isVisible(new TreePath(((ObjectNode)allNodes.elementAt(i)).getPath())))
  {
    visibleNodes.add(allNodes.elementAt(i));
  }
}
((DefaultTreeModel)this.getModel()).reload();
for (int i=0; i<visibleNodes.size() ; i++ )
{
  this.scrollPathToVisible(new TreePath(((ObjectNode)visibleNodes.elementAt(i)).getPath()));
}
        if (selectedNode!=null)
        {
          TreePath path= new TreePath(selectedNode.getPath());
          this.setSelectionPath(path);
          this.requestFocus();
        }
    }
  

cheers...