code: public static CommerceOrder fetchByU_LtC_O_Last(long userId,
  		Date createDate, int orderStatus,
  		OrderByComparator<CommerceOrder> orderByComparator) {
  		return getPersistence()
  				   .fetchByU_LtC_O_Last(userId, createDate, orderStatus,
  			orderByComparator);
  	}
docs: Returns the last commerce order in the ordered set where userId = &#63; and createDate &lt; &#63; and orderStatus = &#63;.
  
  @param userId the user ID
  @param createDate the create date
  @param orderStatus the order status
  @param orderByComparator the comparator to order the set by (optionally <code>null</code>)
  @return the last matching commerce order, or <code>null</code> if a matching commerce order could not be found