topic Re: Dynamic programming accessing static method on classes in Application Development and Automation Discussions

Dynamic programming accessing static method on classes

Former Member — Sat, 17 Apr 2010 06:55:32 GMT

I need access to a static method on a class.

The class name is first decided at runtime.

How do I do that?

Regards,

Morten

Re: Dynamic programming accessing static method on classes

Former Member — Sat, 17 Apr 2010 08:14:22 GMT

Hey Good day,

Check out this link you might get exact answer for it.

http://www.abaplearning.com/abap-tutorials/dynamic-programming/37-dynamic-method-calls-in-abap

Regards and Best wishes.

Re: Dynamic programming accessing static method on classes

Former Member — Sat, 17 Apr 2010 08:48:41 GMT

Hi,

Thanks for the reply.

I can see how to create a dynamic object type but not how to call a static method.

CLASS_NAME=>create_instance( ).

This is the part I am seaching for.

Regards,

Morten

Re: Dynamic programming accessing static method on classes

uwe_schieferstein — Sat, 17 Apr 2010 10:36:30 GMT

Hello Morten

Here is a sample program for you:


*&---------------------------------------------------------------------*
*& Report  ZUS_SDN_DYNAMIC_METHOD_CALL
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT  zus_sdn_dynamic_method_call.


DATA: go_msglist    TYPE REF TO if_reca_message_list.

DATA: gd_method     TYPE tmdir-methodname,
      gd_class      TYPE seoclsname.

START-OF-SELECTION.

  IF ( 1 = 2 ).
    CALL METHOD cf_reca_message_list=>create
*      EXPORTING
*        id_object    = 'RECA'
*        id_subobject = 'MISC'
*        id_extnumber =
      RECEIVING
        ro_instance  = go_msglist.

    go_msglist = cf_reca_message_list=>create( ).
  ENDIF.

  gd_class  = 'CF_RECA_MESSAGE_LIST'.
  gd_method = 'CREATE'.

  CALL METHOD (gd_class)=>(gd_method)
    RECEIVING
      ro_instance = go_msglist.
  IF ( go_msglist IS BOUND ).
    WRITE: / 'Class is bound'.
  ELSE.
    WRITE: / 'Class is NOT bound'.
  ENDIF.


END-OF-SELECTION.

Obviously, that is only half of the task. You need to make the method signature dynamically as well.

Regards

Uwe