ResultSet rs = col.queryCollection(tx, XPathQueryResolver.STYLE_XPATH, sb.toString(), null);
Map grpMap = new HashMap(); // of String to List of Element
while ( rs.next() ) {
try {
DocumentTable dt = rs.getResult();
Element elem = (Element)DTSMHelper.tableToNode(dt);
NodeList nl = elem.getElementsByTagName(Constants.GROUP);
for ( int i = 0; i < nl.getLength(); i++ ) {
Element e = (Element)nl.item(i);
String grpName = DOMUtils.getText(e);