If the event is START_ELEMENT or END_ELEMENT, then the following methods
    in XMLStreamReader also work:
  
public String getLocalName()
public String getPrefix()
public QName getName()
  
  getLocalName() returns the local (unprefixed) name of the element
getQName() returns a QName object for this element
getPrefix() returns the prefix of the element, or null if the element does not have a prefix