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From Matthieu Riou <matthieu.r...@gmail.com>
Subject Re: Problem in compensation instances group
Date Mon, 09 Feb 2009 23:59:14 GMT
On Sun, Feb 8, 2009 at 8:05 PM, Chris Ma <cma@ipm.edu.mo> 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.
>
> --
> View this message in context:
> http://www.nabble.com/Problem-in-compensation-instances-group-tp21906836p21906836.html
> Sent from the Apache Ode User mailing list archive at Nabble.com.
>
>

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