Oracle Foreign function interface

Question

Hi All,
we have a form from which we invoke a second form using the CALL_FORM procedure as follows
CALL_FORM(:GLOBAL.FILE_NAME,NO_HIDE, NO_REPLACE, NO_QUERY_ONLY, pl_Id );
we cannot query in the called form i.e the second form.
After debugging , we found that this FFI doesn't initialize.
here "ue_select_item" is a PLL and "orf_init_ffi" is a C function.
ffi_return := ue_select_item.orf_init_ffi(temp, proj_param,
proj,lst_name,own,pass,scol,env,frm,session,select_state);
does not initialize in the second form.
Is there any limitation on the ffi?
Has the application to be started only as a piped application instead?
Thanks & Regards
Gurjeet

Answer 1

No there is no limitation in ORA_FFI in thie regard, but you've not been very precise as to what your problem is.
In the called form I would still do a FIND_LIBRARY to get the handle to the .so / .dll even though Forms will have the library loaded, you need to get the handle to re-register the function etc, you can't just call the function directly without goings through the steps of getting the Library handle and registering the function again as pl/sql in the second form generally doesn't know what pl/sql in the first has done.