Watchpoint + Class Attributes

[Former Member]

Hey there,

I'm trying to create a watchpoint for a private attribute in one of my classes, but I'm not sure why I'm not being able to do it. Take a look in the following code:

REPORT zwatchpoint_test.


CLASS lcl_watchpoint DEFINITION.

  PUBLIC SECTION.
    METHODS stop.

  PRIVATE SECTION.
    DATA: t_sbook TYPE TABLE OF sbook,
          wa_sbook LIKE LINE OF t_sbook.

ENDCLASS.                    "lcl_watchpoint DEFINITION


CLASS lcl_watchpoint IMPLEMENTATION.

  METHOD stop.

    SELECT *
      FROM sbook
      INTO TABLE me->t_sbook.

    LOOP AT me->t_sbook INTO me->wa_sbook.
      WRITE 'Breakpoint Here!'.
    ENDLOOP.

  ENDMETHOD.                    "stop

ENDCLASS.                    "lcl_watchpoint IMPLEMENTATION

DATA: watchpoint TYPE REF TO lcl_watchpoint.

START-OF-SELECTION.

  CREATE OBJECT watchpoint.
  watchpoint->stop( ).

What I want to do is set a watchpoint for attribute "WA_SBOOK", whenever field WA_SBOOK-PASSNAME reaches some value (ex.: 'Amelie Buchholm').

Steps to reproduce my issue:

1. Copy-paste this sample code into SE38
2. Put a breakpoint at line WRITE 'Breakpoint Here'
3. Execute
4. Clear the breakpoint
5. Try to create a watchpoint for WA_SBOOK-PASSNAME = 'Amelie Buchholm' (or whatever name that exists in SBOOK table)

(If you don't have data in SBOOK on your system, run program SAPBC_DATA_GENERATOR )

What am I missing? I keep getting the 'area of validity varies', even if I try to set the watchpoint as an object attribute...

Thank you!

[Former Member]

The regular watchpoint works for me (NW 7.40 SP 7), it stops at the desired value.

[fred_verheul]

It works (at least creating the watchpoint works) as long as you don't try to impose an additional condition on it...

Looks like it has something to do with the fact that the free conditions are assumed to have global variables in them, while you are using an object attribute.

I get more strange behavior whenever I first define the watchpoint on an object (says WATCHPOINT CREATED), navigate to the right tab in de debugger to watch my ...-points, and try to change the watchpoint by (only then!) adding a condition: I get the message WATCHPOINT CREATED, but the watchpoint is actually deleted...

But I don't think what you want to achieve is possible to be honest.

Sorry...

[Former Member]

Problem is I really wanted to impose a condition to the Watchpoint. Thanks for the try anyway!

Maybe this is something related the AS ABAP version? I'm in 7.31 ...

[fred_verheul]

Yeah, me too (SP10).

[SimoneMilesi]

Hello Mauricio.

I tried your code and followed your instructions but my watchpoints works correctly

[Former Member]

Hey Simone, could you please confirm if you're in an AS ABAP with version greater than 7.31 ? Maybe this thing only works in 7.4+ .

I've tried 2 different systems (7.31 / 7.02) and the error persists.

Thank you!

[custodio_deoliveira]

Hi Mauricio,

Not exactly what you asked for, but I think will do the trick. Instead of creating a watch-point I added a condition to the break-point and it worked like a charm:

Cheers,

Custodio

[fred_verheul]

Cool, thanks! Works here too 😉

[Former Member]

That also worked for me! Thanks man!

Regards!

[UweFetzer_se38]

The regular watchpoint works for me (NW 7.40 SP 7), it stops at the desired value.

[Former Member]

Bingo! So that only works on 7.4+.