Can't return multiple values (OO)

[former_member295881]

Hello experts,

I’m a newbie in ABAP OO and need a suggestion from you experts. I’m trying to populate values on the selection screen from a custom (config) table. I need to do it on INITIALIZATION event so that when screen loads then user can see them.  To accomplish it I wrote a CLASS-METHOD: get_details.

    CLASS-METHODS: get_details IMPORTING im_file   TYPE string
im_vkorg  TYPE vkorg
im_vtweg  TYPE vtweg
im_spart  TYPE spart
im_ktokd  TYPE tt_ktokd
im_kunnr  TYPE tt_kunnr
im_date   TYPE tt_date
im_time   TYPE tt_time
im_test   TYPE c,

This way I get all the variables (parameters) and tables (select-options) I need to populate.  My question is can I write a CLASS-METHOD with EXPORTING parameters? The intend is to export all the values/tables back in one-shot. Currently I’m using few RETURN methods but they only return one variable/table at a time.

                return_file RETURNING VALUE(r_file)   TYPE string,
return_org  RETURNING VALUE(r_vkorg)  TYPE vkorg.

Please advise how to return all of them like I IMPORTED them above (in get_details method)

Many thanks in advance.

[Former Member]

Hi,

   Yes, you need to use exporting when you want to return multiple values,  Importing variables cannot be changed inside a class method.

Returning just lets you return a single value, If you are assigning value inside the method you can use Exporting, or else if you already have a value assigned and you want to update it you can use Changing.

Hope you Understood the Difference

[former_member295881]

Many thanks Pratheek for the details. So it's like FM isn't it?

Here is how I wrote method to export values.

CLASS-METHODS:

return_values EXPORTING   ex_file   TYPE string
                                         ex_vkorg  TYPE vkorg.
                                         ex_vtweg  TYPE vtweg
                                         ex_spart  TYPE spart
                                         ex_ktokd  TYPE tt_ktokd
                                         ex_kunnr  TYPE tt_kunnr
                                         ex_date   TYPE tt_date
                                         ex_time   TYPE tt_time
                                         ex_test   TYPE c,

[Former Member]

Yes, its like FM.

What you have done is correct, now just assign the values inside this method and it will work fine.

[former_member295881]

Thanks for sharing the concept mate, I just exported the values and all looks good.