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Subject: RE: [wsbpel] Issue 67 - Proposal for vote (restated)


That is exactly what the language below is trying to say, just spelling
out more.  If you look at the issue definition, this came up because
Yaron was unsure whether deadlock was in fact precluded.  There is no
intent to dictate implementation.  Hence the use of the word
"conceptually".

-----Original Message-----
From: Goran Olsson [mailto:goran.olsson@oracle.com] 
Sent: Friday, January 16, 2004 4:34 PM
To: Satish Thatte; wsbpel@lists.oasis-open.org
Subject: Re: [wsbpel] Issue 67 - Proposal for vote (restated)

I'm a bit confused here. Why should the specification how a certain
concept
is implemented?
Should it not just say " Note:that serialization means that serializable
scopes will not deadlock."?
I would have assumed that it is up to implementors to use whatever
mechanism
they decide to ensure this.
Thanks, Goran

----- Original Message ----- 
From: "Satish Thatte" <satisht@microsoft.com>
To: <wsbpel@lists.oasis-open.org>
Sent: Friday, January 16, 2004 9:38 AM
Subject: [wsbpel] Issue 67 - Proposal for vote (restated)


As Ron wrote, the extra sentence he proposed adding led to some
potential confusion about implications for implementation.  He has
withdrawn his suggestion.  I would therefore like to simply restate my
proposal in its original form as the current proposal for a vote.

I propose that we add the following sentences to section to Section 13.6
following paragraph 2.

"Note that serialization of variable access cannot lead to internal
deadlock in a BPEL process instance.  The reason being that,
conceptually, a serializable scope is not started until it can gain
sufficiently exclusive access to all the non-local variables it needs."

Satish



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