Object uninspObj = listInspectors[i].getListElement(listObj, j);
switch( elemCategory) {
case STRING:
StringObjectInspector strInspector = (StringObjectInspector) listInspectors[i].getListElementObjectInspector();
String item = strInspector.getPrimitiveJavaObject(uninspObj);
ss.addItem(item);
break;
case LONG:
LongObjectInspector bigintInspector = (LongObjectInspector) listInspectors[i].getListElementObjectInspector();
long itemHash = bigintInspector.get(uninspObj);
ss.addHash( itemHash);