topic Re: Using RTTI in table type any in Application Development and Automation Discussions

Using RTTI in table type any

Former Member — Sun, 02 Oct 2011 18:05:14 GMT

Hello,

i have table type any and i want to know in the loop for every field which type he have ,for instance for field type Date8.

what i the best way to do so , i guess that I need to use for instance cl_abap_elemdescr=>get_data_type_kind( <lv_field> ) but i dont know

how to use it and check every field in the loop ...

E.g.

loop at <lt_fields> assigning <ls_fields>

* check for every field in <ls_fields> which type he have and if the field is type date8 
* handle it diffrently


endloop.

Regards

Joy

Re: Using RTTI in table type any

former_member209703 — Sun, 02 Oct 2011 18:26:22 GMT

Can be something like this


data typedescr type ref to cl_abap_datadescr.
loop at <lt_fields> assigning <ls_fields>.
    typedescr ?= cl_abap_typedescr=>describe_by_data( <ls_fields> ).
    IF typedescr->type_kind = 'D'.
* * *
    ENDIF.
endloop.

Re: Using RTTI in table type any

Former Member — Sun, 02 Oct 2011 18:32:34 GMT

HI Jose,

The issue here is that <ls_output> is structure and have more than multiple fields and can have

1 or more fields type D ....

Thanks and Regards

Joy

Re: Using RTTI in table type any

naimesh_patel — Sun, 02 Oct 2011 18:35:59 GMT

You can use Absolute Name to get the absolute type from the type descriptor.


DATA: lt_vbak TYPE STANDARD TABLE OF vbak.

DATA: lo_struct   TYPE REF TO cl_abap_structdescr,
      lt_comp     TYPE cl_abap_structdescr=>component_table,
      la_comp     LIKE LINE OF lt_comp.

lo_struct ?= cl_abap_typedescr=>describe_by_name( 'VBAK' ).
lt_comp  = lo_struct->get_components( ).

WRITE: /(30) 'Field' , (40) 'Absolute Type'.

DATA: lv_abs_name TYPE string.
LOOP AT lt_comp INTO la_comp.
  WRITE: /(30) la_comp-name, (40) la_comp-type->absolute_name.
ENDLOOP.

Regards,

Naimesh Patel

Re: Using RTTI in table type any

Former Member — Sun, 02 Oct 2011 18:40:04 GMT

HI Naimesh,

Sorry but I don't understand how i can use your code in my case,

the issue is that i have table type any and work area type any with multiple fields ...

Thanks,

Joy

Re: Using RTTI in table type any

former_member209703 — Sun, 02 Oct 2011 18:44:04 GMT

If <LS_OUTPUT> is an structure, then you can use something like this


data typedescr type ref to cl_abap_datadescr.
loop at <lt_fields> assigning <ls_output>.
 do.
   assign component sy-index of structure <ls_output> to <fs>.
   if sy-subrc eq 0.
    typedescr ?= cl_abap_typedescr=>describe_by_data( <ls_fields> ).
    IF typedescr->type_kind = 'D'.
    ENDIF.
  else.
    exit. 
  endif.
 enddo.
endloop.

Re: Using RTTI in table type any

Former Member — Sun, 02 Oct 2011 20:28:15 GMT

Hi,

Just to clarify after small typing mistakes:


DATA typedescr TYPE REF TO cl_abap_datadescr.
FIELD-SYMBOLS <fs> TYPE ANY.

LOOP AT <lt_fields> ASSIGNING <ls_fields>.
 DO.
   ASSIGN COMPONENT sy-index OF STRUCTURE <ls_fields> TO <fs>.
   IF sy-subrc EQ 0.
     typedescr ?= cl_abap_typedescr=>describe_by_data( <fs> ).
     IF typedescr->type_kind = 'D'.
        "...
     ENDIF.
   ELSE.
    EXIT. 
   ENDIF.
 ENDDO.
ENDLOOP.

Kr,