SMARTFORMS and ABAP OO

Question

I have a performance probleme when I activate my Smartforms.
The activation of my smartforms are very very long (Time out).
This is only when I use ABAP object program in my Smartforms.
Exemple in an invoice formular: I use specific object class (create with SE24) to read all the data.
- ZCL_INVOICE_DOC = 1 invoice (attributes : VBRK, VBELN, .... methodes get_customer, get_item, get_adress, ...)
- ZCL_INVOICE_DOC_ITEM = 1 invoice item (attributes : VBRP, POSNR, ... methodes : get_material (object), ...)
- ZCL_ADDRESS = 1 adresse
- ZCL_CUSTOMER = 1 partner
it is very simple to use this sort of object to get invoice data, the performance of this ZCL_xxx object are good.
but when i use it in a smartforms the activation time increase too much!!!
Do you have notice this sort of probleme with ABAP OO in smartforms?.
Is there a methode to activate smartforms in bacth mode?
Thanks for your answer.
Frederic CASTEL
(sorry for my english)

Answer 1

well, ABAP OO is well known to have performance issues, thats why SAP had to introduce the "FRIEND"-concept, which actually works against all capsulating rules of the OO concept.
Anyway, if your smartform takes that long for activation you got MUCH coding in it.
a Smartform is beeing called from a driver program, so why dont you do your GET_DATA stuff in the driver program and pass it to the smartform?
In my personal taste it makes much sense to have as less coding in the form as possible and move anything possible to the driver program.
much fun further on.