topic Re: Dynamic Declaration in Application Development and Automation Discussions

Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 13:28:23 GMT

I was looking into a poosibility of making a dynamic declaration refercing a formal parameter. is it possible. below is my code:

FORM WRITE_DATA  USING P_TYPE   P_SNAME.

  CREATE DATA p_type TYPE (P_SNAME).
.....
ENDFORM

Can you pls let me know on how to acheive it

Re: Dynamic Declaration

former_member194669 — Mon, 20 Aug 2007 13:52:24 GMT

Hi,

Check for possibility to use GENERATE SUBROUTINE in your case

aRs

Re: Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 14:03:31 GMT

how does it helps?

Re: Dynamic Declaration

Former Member — Mon, 20 Aug 2007 14:08:10 GMT

Hi Prabhu,

that works in my program.

DATA: transtru TYPE dd03l-tabname.

CREATE DATA fs_it_data_ref

TYPE STANDARD TABLE OF (transtru)

WITH DEFAULT KEY.

So yes, it's possible.

Kind Regards

Henner

Re: Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 14:11:24 GMT

hi henner

thks for ur reply. here the variable in my requirement <b>fs_it_data_ref</b> is a formal parameter in a form routine and the value present in the formal parameter should be referenced for dynamic declaration.

Re: Dynamic Declaration

Pawan_Kesari — Mon, 20 Aug 2007 14:18:45 GMT

CREATE DATA dref LIKE f.

Re: Dynamic Declaration

Former Member — Mon, 20 Aug 2007 14:18:52 GMT

Hi Prabhu,

additionally you have to call your form like this:

data: p_name type ref to data.

data: s_name type fieldname value 'LFDNR'.

perform abc using p_name s_name.

FORM abc USING p_name type ref to data

s_name type fieldname.

create data p_name type (s_name).

ENDFORM. " abc

Re: Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 14:21:47 GMT

yeah. i had tried this too. but how to populate the variable p_name with values ,say item1, so that in the form routine a dynamic variable called item1 is created? i'm unable to acheive this.

Re: Dynamic Declaration

Pawan_Kesari — Mon, 20 Aug 2007 14:23:08 GMT

this should work


REPORT zpwtest .

START-OF-SELECTION .

  DATA :  v_i TYPE i ,
          v_c TYPE c .

  PERFORM check_data USING v_i v_c .

*---------------------------------------------------------------------*
*       FORM check_data                                               *
*---------------------------------------------------------------------*
*       ........                                                      *
*---------------------------------------------------------------------*
*  -->  P_V_I                                                         *
*  -->  P_V_C                                                         *
*---------------------------------------------------------------------*
FORM check_data USING    p_v_i
                         p_v_c.

  DATA: p_i TYPE REF TO data .
  CREATE DATA p_i LIKE p_v_i .

ENDFORM.                    " check_data

Re: Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 14:35:51 GMT

hi pawan

my requirement is as below:

FORM WRITE_DATA USING P_TYPE P_SNAME.

CREATE DATA p_type TYPE (P_SNAME).

...

ENDFORM

PS: P_TYPE is a formal parameter which can take some input value like street. and i need to create a variable called street dyncamically. is it possible?

Re: Dynamic Declaration

Pawan_Kesari — Mon, 20 Aug 2007 14:48:12 GMT

sorry.. i sound absurd in previous replies...

can i ask you why so you want variable 'variable name' ? Hope my question is inline with your req.

Re: Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 14:53:00 GMT

its a kinda requirement which i thought of using. i have a meterial doc number to which P_ is prefixed and i need to create a variable say P_4500234 for each material doc number and process. i do have other woraround but thought if this would be feasible to implement in abap?

Re: Dynamic Declaration

former_member194669 — Mon, 20 Aug 2007 15:03:18 GMT

Hi,

Please check this code, may this one will help you.


report  z0002.

parameters : p_field(40) type c default 'MARA_MATNR'.

* The dynamic program source table
data: begin of inctabl occurs 10,
line(72),
end of inctabl.

data: lng type i, typesrting(6).

* Create the dynamic internal table definition in the dyn. program
inctabl-line = 'program zdynpro.'. append inctabl.
concatenate 'data: p_type like ' p_field '.'into inctabl-line
            separated by space.

append inctabl.
concatenate 'P_TYPE = 123.' SPACE into inctabl-line
            separated by space.

append inctabl.

concatenate 'write : / P_TYPE.' SPACE into inctabl-line
            separated by space.

append inctabl.

insert report 'zdynpro'(001) from inctabl.
submit zdynpro and return.


break-point.

.

aRs

Re: Dynamic Declaration

Former Member — Mon, 20 Aug 2007 15:06:09 GMT

Hi Prabhu,

if i understood you correctly, it's not possible what you like to do, because

create data just gives you a pointer like for the above example, then you can assign the pointer to

a field symbol that takes over the type of s_name then.

I'm not sure, but i think what you need is the class

CL_APAP_TYPEDESCR and it's subclasses like

CL_ABAP_TYPEDESCR

--CL_ABAP_DATADESCR

--CL_ABAP_ELEMDESCR

--CL_ABAP_REFDESCR

--CL_ABAP_COMPLEXDESCR

--CL_ABAP_STRUCTDESCR

--CL_ABAP_TABLEDESCR

--CL_ABAP_OBJECTDESCR

|--CL_ABAP_CLASSDESCR

|--CL_ABAP_INTFDESCR

I think it's able to make dynamic declarations like you need then, but i never

needed it and never used it.

Kind Regards

Henner

Re: Dynamic Declaration

prabhu_s2 — Mon, 20 Aug 2007 15:12:22 GMT

thkx henner. maybe i need to check in those classes