How to create dynamic types?

[Former Member]

Hi gurus!

I want to refer on a strucutre, whose components' definitions are available only during runtime.

Example:

The type which i want to refer on should be a structure with one component, which is a CHAR with variable length. (i.e. the VALUE of the component's parameter LENGTH is evaluated during runtime).

Any hints are welcome.

With best regards Jonas

[Former Member]

hi, Jonas Soiné,

i think that following code will help you.

____________________________________

TYPES : BEGIN OF my_type,

char(10) TYPE c,

END OF my_type.

DATA my_type_variable TYPE my_type.

my_type_variable-char = 'asdfas'.

WRITE: my_type_variable-char.

____________________________________

Kind Regards,

Faisal

[Former Member]

Hi Jones,

For your requirement you nedd to play with the Field Symbols.

By Field Symbosl you can assign it to strucuture during runtime.

Please see the link below.

http://www.sts.tu-harburg.de/teaching/sap_r3/ABAP4/field_sy.htm

Thanks,

Chidanand

[Former Member]

use cl_abap_elemdescr=>get_c( length )

DATA: r_stru TYPE REF TO cl_abap_structdescr,
      it_comp TYPE cl_abap_structdescr=>component_table,
      r_comp TYPE abap_componentdescr,
      r_elem TYPE REF TO cl_abap_elemdescr,
      r_data TYPE REF TO data.

DATA: length_of_field TYPE i VALUE 10.

FIELD-SYMBOLS: <fs> TYPE ANY.

START-OF-SELECTION.

r_elem = cl_abap_elemdescr=>get_c( length_of_field ).

r_comp-name = 'FIELD1'.
r_comp-type = r_elem.
append r_comp to it_comp.

r_stru = cl_abap_structdescr=>create( it_comp ).

CREATE DATA r_data TYPE HANDLE r_stru.

ASSIGN r_data->('FIELD1') TO <fs>.

<fs> = 'ABC'.

WRITE: / <fs>.

[Former Member]

Cheers friends!

Somehow the last answer was the closest to solve the problem.

But finally i descided not to use dynamical types due to the fact that i would have had to change the whole programm logic without even knowing wether i would recieve better performance.

Anyway thanks J.Soiné