How to check whether the ref-variable refers to an object or not?

[Former Member]

Hi,

I think the topic says all!

Thanks for help!

[RichHeilman]

Do you mean if it is bound?

if o_ref is bound.

Endif.

Regards,

Rich Heilman

[Former Member]

Hi,

Try to assign the data reference to the object reference of type 'object'.. if you are successful then it's object reference!

DATA: lo_obj TYPE REF TO object.

<fs_value> has data reference..

TRY .

lo_obj ?= <fs_value>.

CATCH cx_root.

ENDTRY.

Regards,

Abhijit

<a href="/people/mark.finnern/blog/2004/08/10/spread-the-love the love!</a>

[adam_krawczyk1]

Hi,

Just to clarify:

• is bound works only in case if object variable is instantiated (is not initial).
• casting to object works always.

So if we want to know also if initial variable is object reference type or not we should use casting to object.

Example:

DATA lo_my_class TYPE REF TO zcl_my_class.
DATA lo_test_object TYPE REF TO object.
TRY.
     lo_test_object ?= lo_my_class.
     WRITE 'IS OBJECT casting success'.
CATCH cx_root.
     WRITE 'IS OBJECT casting fail'.
ENDTRY.
DATA l_is_bound TYPE abap_bool.
IF ( lo_my_class IS BOUND ).
     WRITE 'IS OBJECT is bound success'.
ELSE.
     WRITE 'IS OBJECT is bound fail'.
ENDIF.

This will result in output:

IS OBJECT casting success
IS OBJECT is bound fail

Regards,

Adam