Node creation and addition to existing Element Node

Question

Hi all,
I have a class that opens a xml file, loads the Document and then, from a method, I am trying to add sub nodes to one of the Element node from the XML document. It just doesn't work.
This is the method that is supposed to add the nodes:
public Node getSubNode( Node iCurrentNode )
// Method local variables
DocumentBuilder lBuilder = null;
Document lDocument = null;
DocumentBuilderFactory lFactory = DocumentBuilderFactory.newInstance();
// Prepare the document and final Node to return
lBuilder = lFactory.newDocumentBuilder();
lDocument = lBuilder.newDocument();
Element lSubMenu = lDocument.createElement("sub_menu");
lSubMenu.setAttribute("ID", "User20");
lSubMenu.setAttribute("label", "Montreal user 1");
iCurrentNode.appendChild( lSubMenu );
lSubMenu = lDocument.createElement("sub_menu");
lSubMenu2.setAttribute("ID", "User21");
lSubMenu2.setAttribute("label", "Montreal user 2");
lDocument.appendChild(lSubMenu2);*/
return iCurrentNode;
I always get a "org.apache.crimson.tree.DomEx: WRONG_DOCUMENT_ERR: That node doesn't belong in this document."
So I understand by this that I am working with a Document that I declared in this method and thus, for an unknown reason, seem unable to add this node to my existing Element node.
What should I do to be able to add these nodes to my input Node?
Dominique Paquin

Answer 1

Ok, to answer my own question, and for the benefit of future people searching here for an answer, I'd used 2 different Document instance for the creation of my 2 nodes, one for the creation of the basic Node structure and one for the creation of the node that would be added to the other one. Since the importNode (done on the first one ) removes the parent from the imported node, I was no longer in a position to access the parent reference.
I simply created a single Document in my class as a global variable and used this single entity to create all my nodes (the original and the one added to the original), It solved all my problems.
I don't know if I was clear anough but if you need further explanation drop me a line.
[email protected]
http://www.okiok.com