Calculated virtual characteristic

Question

Hello,
I need to create a characteristic which is calculated virtual runtime of the query.
This must be calculated from an input variable that is associated with the feature query Date Mat., (Which is the condition of the filter (>=)) therefore take out the query all records in the cube whose date of CBs is> = the date entered on screen) and the expiration date of the records obtained at the office.
As you can see the calculation is done with the same property but using the input variable.
The code would be:
No. days = date input variable Mat - date vto.registro read.
No if days> = 0 or n º days <= 30.
characteristic virtual = '0 - 30 '
endif.
This code is to be implemented in this project or the expansion RSR00002 RSR_OLAP_BADI badi, but what is not very clear to me is like I can read the value of the input variable ..
Sincerely,

Answer 1

Hey.  The way I have done this in the past is to catch the variable value in the variables user exit and then store that value to be used/looked up later in the virtual object user exit.
What you will want to look at is doing an export to memory on the variable value entered (that you get in the variable user exit) and then an import from memory in the virtual exit.  I believe the code syntax is something like...
EXPORT TO MEMORY xxx ID yyy
IMPORT FROM MEMORY zzz ID yyy
Here, xxx and zzz are the fields you are dealing with.  I'm going from memory here, so the syntax may be a little different but the idea is the same.
Thanks