code: @Override
  	public CommerceOrder fetchByShippingAddressId_First(
  		long shippingAddressId,
  		OrderByComparator<CommerceOrder> orderByComparator) {
  		List<CommerceOrder> list = findByShippingAddressId(shippingAddressId,
  				0, 1, orderByComparator);
  
  		if (!list.isEmpty()) {
  			return list.get(0);
  		}
  
  		return null;
  	}
docs: Returns the first commerce order in the ordered set where shippingAddressId = &#63;.
  
  @param shippingAddressId the shipping address ID
  @param orderByComparator the comparator to order the set by (optionally <code>null</code>)
  @return the first matching commerce order, or <code>null</code> if a matching commerce order could not be found