topic Handling exceptions in Application Development and Automation Discussions

Handling exceptions

Former Member — Fri, 25 Aug 2006 20:44:12 GMT

Hi Folks!

I have a requirement where I need to handle an exception. What i'm doing is a batch input, though I doing it over a standard transaction, I need to be sure that if a dump occurs in the time executing the transaction, I can catch it and execute some cleanup process.

Something like this:

Controlled block:

Perform transaction 'XK02'.

IF an error ocurred, catch and execute cleanup.

I've got an example, however it is through objects and I'm getting an error that CX_ROOT is unknown.

<i>report DEMO_HANDLE_EXCEPTIONS.

parameters NUMBER type I.

data RESULT type P decimals 2.

data OREF type ref to CX_ROOT.

data TEXT type STRING.

start-of-selection.

write: / 'Testing divison and Sqare root with', NUMBER.

uline.

try.

if ABS( NUMBER ) > 100.

raise exception type CX_DEMO_ABS_TOO_LARGE.

endif.

try.

RESULT = 1 / NUMBER.

write: / 'Result of division:', RESULT.

RESULT = SQRT( NUMBER ).

write: / 'Result of square root:', RESULT.

catch CX_SY_ZERODIVIDE into OREF.

TEXT = OREF->GET_TEXT( ).

cleanup.

clear RESULT.

endtry.

catch CX_SY_ARITHMETIC_ERROR into OREF.

TEXT = OREF->GET_TEXT( ).

catch CX_ROOT into OREF.

TEXT = OREF->GET_TEXT( ).

endtry.

if not TEXT is initial.

write / TEXT.

endif.

write: / 'Final result:', RESULT.</i>

Please guide me how I could handle this, the cleanup it's pretty critical.

Thanks.

Regards,

Gilberto Li

Re: Handling exceptions

uwe_schieferstein — Fri, 25 Aug 2006 21:27:37 GMT

Hello Gilberto

If you are doing standard BDC using

CALL TRANSACTION 'XK02' USING lt_bdcdata
                        MESSAGES INTO lt_messages.

then you can collect all messages of the batch-input and analyse them afterwards. So you do not need any TRY/CATCH block.

However, if the syntax check says that CX_ROOT does not exist this would mean that you are working on an old release not having this root exception class.

Regards

Uwe

Re: Handling exceptions

Former Member — Fri, 25 Aug 2006 21:41:14 GMT

Hi Uwe, thanks for your reply.

1. You're right, i'm working on an older version that doesn't have the exception handling feature, I was suspecting that.

2. I know you can collect the error messages, however what if while executing the batch input it gives a dump, the execution of the calling program (the program making the call transaction) will be ended too, and I need to process some clean up operations if this happens.

3. I know that usually and the probabilities that a standard transaction gives a dump its pretty low, but I still need to prevent that if an error(not a transaction error, by error I meaning a dump) still occurs do the clean up that it's critical.

Thanks again.

Regards,

Gilberto Li

Re: Handling exceptions

Former Member — Fri, 25 Aug 2006 21:46:22 GMT

I don't think that is possible. How can you catch and process an error thrown by a standard application. I know the probability is low, but if it happens then you have to fix it by implementing OSS notes if there is any for that error.

Thanks,

Re: Handling exceptions

Former Member — Fri, 25 Aug 2006 22:38:30 GMT

Hi Somen, thanks for your reply.

Yes, I think this isn't possible either now. I thought in a beggining that a exception handling could do the trick, but now that I know I can't count with it, it seems that I won't be able to control an error.

I will have to deal with the low probabilities of a standard transaction givin a dump, and if it happens fix it as soon as possible with OSS Notes.

Thanks again.

Regards,

Gilberto Li.