topic Re: TRY to CATCH a system exception in Application Development and Automation Discussions

TRY to CATCH a system exception

rainer_hbenthal — Thu, 11 Oct 2007 08:29:09 GMT

Hi,

in a class, i have two methods, let me call them A and B.

method A is calling method B. In method B an exception CX_SY_CONVERSION_NO_NUMBER may occur. So the code is something like this in method A:



TRY.
  me->B( par ).

  catch CX_SY_CONVERSION_NO_NUMBER.
    do_some_error_handling

ENDTRY.

Stll the program abends with an uncaught exception CX_SY_CONVERSION_NO_NUMBER which occured in method B. Why isnt this be caught in method A? How can i handle this in method A with try and catch?

Re: TRY to CATCH a system exception

Former Member — Thu, 11 Oct 2007 08:35:38 GMT

Hi,

Strange - have you checked whether your CATCH block is actually executed? If so, are you shure that your exception code doesn't raise an exception itself?

Regards, Joerg

Re: TRY to CATCH a system exception

rainer_hbenthal — Thu, 11 Oct 2007 08:45:23 GMT

No, the catch isnt executed, the abend says thats happening when i'm assigning 'A' to a decimal varbiable. Of course this is not possible, but i want to handle this myself without an abend. And yes, the exception is exactly the same i wrote in my catch expression and which finally abends the program.

Re: TRY to CATCH a system exception

Former Member — Thu, 11 Oct 2007 08:49:12 GMT

Hello Rainer,

To make sure everything is caught catch the exception cx_root.

If that doesn't help you could do the following:

don't use TRY ... ENDTRY.

But use CATCH ... ENDCATCH:


CATCH SYSTEM-EXCEPTIONS.
  me->B( par ).
  if sy-subrc <> 0.
    do_some_error_handling.
  endif.
ENDCATCH.

best regards

Sven

Re: TRY to CATCH a system exception

rainer_hbenthal — Thu, 11 Oct 2007 08:59:55 GMT

If i'm doing it like this:

try.

tmp = 'A'.

me->convert( parameter ).

catch cx....

endtry.

the exception is caught. I thought that calling a methof/function where an exception occured is caught too, but is this not true? Are systemexceptions are being handled in the same scope?

Re: TRY to CATCH a system exception

varma_narayana — Thu, 11 Oct 2007 09:00:16 GMT

Hi..

Here the Exception is triggered by method B. So u must have to code like this.

in the Method B Definition you must add the addition

RAISING CX_SY_CONVERSION_NO_NUMBER as a parameter. Then this code works.

TRY.

me->B( par ).

catch CX_SY_CONVERSION_NO_NUMBER.

do_some_error_handling

ENDTRY.

REWARD IF HELPFUL.

Re: TRY to CATCH a system exception

rainer_hbenthal — Thu, 11 Oct 2007 09:20:19 GMT

Hi thanks, i really have forgotten the raising clause....