On Sun, Feb 8, 2009 at 8:05 PM, Chris Ma <[email protected]> wrote:
>
> Hi all,
>
> I am doing a survey on BPEL's compensation instances group and I found
> some strange nature which is not specific in the BPEL specification 2.0, I
> am not sure if it is normal or not in all BPEL server, or anyone has the
> practical example to support the strange nature?
>
> As the following program, a while loop count x from 0 to 5, it contains a
> scope, the scope increase X by 1, the compensation of the scope decrease X
> by 1.
>
> the strange is, if a throw inside the while loop is called(e.g. throw_1),
> the last compensation instance is executed. X will finally be 2. on the
> other hand, if a throw outside the while loop is called(throw_2), all
> compensation instances are invoked and X will finally be 0. It is strange
> that the throw_1 can not call all the compenstion instances...Please
> comment. Thanks!
>
Interesting. Do you have the BPEL process implementing this? I like
pseudo-code but to comment on such a specific behavior, I'd like to see the
exact code.
Thanks,
Matthieu
>
>
> X=0
> While X < 5
>
> { A ? C , F } where A has activity X= X + 1, C is compensation X=X
> -1, F is the fault handler.
>
> if x >2 then (throw_1-> compensate)
>
> loop
>
> (throw_2 -> compensate)
>
>
> Chris Ma.
>
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>
>
