Adding namespace definition to xml using apache xmlbeans

I need to add namespace defintion to an element since its not getting added when when xml is generated using apache xmlbean. How do I acheieve this using xmlbeans API?

From stackoverflow

• I have found answer to the problem. Here's how it is.

  XmlCursor cursor= targetObject.newCursor();
  cursor.toNextToken();
  cursor.insertNamespace("A", "namespace1");
  //For exmaple
  cursor.insertNamespace("xsi", "http://www.w3.org/2001/XMLSchema-instance");
  cursor.dispose();