how to reference to my class attribute

[former_member582701]

Hi,

In a method, if i receive for parameters a variable which it has the same name that my attribute name, how i can difference them?

Ex:

attribute = num_files.

importing num_files.

method Add_file.

num_files = num_files.

endmethod.

I have tried with ME, but it does not work.

Does exist any way to do this? (it is like sentence this-> in C++)

Thank you.

[former_member582701]

Hi,

In a method, if i receive for parameters a variable which it has the same name that my attribute name, how i can difference them?

Ex:

attribute = num_files.

importing num_files.

method Add_file.

num_files = num_files.

endmethod.

I have tried with ME, but it does not work.

Does exist any way to do this? (it is like sentence this-> in C++)

Thank you.

[Former Member]

Hi

PARAMETERS p_num TYPE i.

*---------------------------------------------------------------------*
*       CLASS lcl_my_class  DEFINTION
*---------------------------------------------------------------------*
*       ........                                                      *
*---------------------------------------------------------------------*
CLASS lcl_my_class DEFINITION.
  PUBLIC SECTION.
    METHODS: my_method
                EXPORTING num_file TYPE i.

    DATA: num_file TYPE i.
ENDCLASS.

*---------------------------------------------------------------------*
*       CLASS lcl_my_class IMPLEMENTATION
*---------------------------------------------------------------------*
*       ........                                                      *
*---------------------------------------------------------------------*
CLASS lcl_my_class IMPLEMENTATION.
  METHOD my_method.
    me->num_file = num_file.
  ENDMETHOD.
ENDCLASS.

DATA my_object TYPE REF TO lcl_my_class.

START-OF-SELECTION.

  create object my_object.

  CALL METHOD my_object->my_method IMPORTING num_file = p_num.

  WRITE my_object->num_file.

Max

[former_member69765]

The OWN attributes can always be referenced with: me->

me always stores the self reference in any object.

Cheers.

[matt]

>

...
> I have tried with ME, but it does not work....

The other answers are correct for instance attributes - you use me. What do you mean by "it doesn't work". Do you get a syntax error? if so, what is it.

If the attribute is static,t hen use CLASSNAME=>ATTRIBUTE.

Tip: don't use the same name for parameters as attributes. I always prefix my importing parameters with i_, exporting with e_, changing with x_, and returning with r_.

matt

[mauriciolauffer]

Read the book: "Official ABAP Programming Guidelines". There is a charpter talking about this.

http://www.sap-press.com/products/Official-ABAP-Programming-Guidelines.html