topic Re: Can't return multiple values (OO) in Application Development and Automation Discussions

Can't return multiple values (OO)

former_member295881 — Thu, 21 Mar 2013 18:02:40 GMT

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.

Re: Can't return multiple values (OO)

Former Member — Thu, 21 Mar 2013 18:24:20 GMT

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

Re: Can't return multiple values (OO)

former_member295881 — Thu, 21 Mar 2013 18:36:43 GMT

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,

Re: Can't return multiple values (OO)

Former Member — Thu, 21 Mar 2013 18:43:26 GMT

Yes, its like FM.

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

Re: Can't return multiple values (OO)

former_member295881 — Thu, 21 Mar 2013 18:53:46 GMT

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