public void readSAX(
     InputSource is, String schemaID, ContentHandler contentHandler, ErrorHandler errorHandler)
     throws SAXException, ParserConfigurationException, Exception {
   XMLDataReader xmlDataReader = getXMLDataReader();
   xmlDataReader.readSAX(is, schemaID, contentHandler, errorHandler);
 }
 public Document readDOM4J(InputSource is, String schemaID, ErrorHandler errorHandler)
     throws SAXException, ParserConfigurationException, Exception {
   XMLDataReader xmlDataReader = getXMLDataReader();
   return xmlDataReader.readDOM4J(is, schemaID, errorHandler);
 }