XMLPullParser class represents the parser
Loaded by a subclass constructor:
XMLPullParser parser = new org.cyberneko.pull.parsers.Xerces2();
    The document is read from an 
    org.apache.xerces.xni.parser.XMLInputSource:
    
    
  XMLInputSource source = new XMLInputSource(publicID, systemID, baseSystemID);
  parser.setInputSource(source);
    The parser's nextEvent() method returns the next XMLEvent:
    
public XMLEvent nextEvent() throws XNIException, IOException