docs: @Override
  	public CommerceOrder fetchByG_C_O_Last(long groupId,
  		long commerceAccountId, int orderStatus,
  		OrderByComparator<CommerceOrder> orderByComparator) {
  		int count = countByG_C_O(groupId, commerceAccountId, orderStatus);
  
  		if (count == 0) {
  			return null;
  		}
  
  		List<CommerceOrder> list = findByG_C_O(groupId, commerceAccountId,
  				orderStatus, count - 1, count, orderByComparator);
  
  		if (!list.isEmpty()) {
  			return list.get(0);
  		}
  
  		return null;
  	}