Persistent vs Runtime handles - development standards?

[Mike Pokraka]

Hi Andy,

Thanks for the feedback, interesting. My guess is that it has been
tightened up with the move towards OO. BOR has obscured the
runtime/persistent state by hiding it behind macros. I imagine SAP changed
some BOR code to play by 'proper' OO principles as the previous behaviour
you described seems to bend the rules a little.

Aside from that, the instantiation of objects has always been a mystery -
the WF engine instantiates an object far more often than you think and in
places you wouldn't expect.

Cheers,
Mike




On Thu, February 25, 2010 5:11 pm, Catherall, Andy wrote:
> Update on this issue:
>
> One example turned out to be caused by the attribute code holding the
> runtime object handle of the child attribute and, once found, returning
> that value each time rather than re-determining it. On 4.6c, it would
> appear the handle was still valid on subsequent passes through the
> business object. On ECC6, it would appear it was not. Ensuring that the
> run-time handle was freshly re-created each time solved that issue.
>
> The other discovery was that using the Change Documents to cause a
> CREATED style event from DRAW (ie Document Information Records) results
> in the Check being called 'too soon', in that the objects do not exist
> in the database yet, and the EXISTENCE CHECK methods except! Back to
> using DRAW.CREATED, which I'd had to avoid in 4.6c due to a similar -
> though less extreme - example of the same on that event.
>
> Thanks
> Andy
>
> ________________________________
>
> From: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] On Behalf
> Of Catherall, Andy
> Sent: Friday 05 February 2010 15:33
> To: SAP Workflow Users' Group
> Subject: BOR: Persistent vs Runtime handles - development standards?
>
>
>
> Hi all
>
> As I progress through my ECC6 upgrade, I have now started to trip over a
> few locations where the runtime/persistent handles are not as rigorous
> as they might be. This is having some entertaining effects!
>
> Can anyone point me towards some development standards documents that
> might exist to make sure I use the correct handle type at the correct
> time?
>
> Thanks
> Andy Catherall
> Technical Analyst - SAP Workflow, IXOS & DMS
>
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