RE: [wsn] Preconditions

[Steve Graham <sggraham@us.ibm.com>]

I don't recall that we removed the "concept"
of pre-condition, but rather, we changed the syntax somewhat to collapse
precondition, selector and topicExpression under a filter element.

sgg

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Steve Graham
(919)254-0615 (T/L 444)
STSM, On Demand Architecture
Member, IBM Academy of Technology
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"Martin Chapman" <martin.chapman@oracle.com>

11/05/2004 09:54 AM

To	Susan Malaika/Santa Teresa/IBM@IBMUS, "'Patil, Sanjay'" <sanjay.patil@sap.com>
cc	<wsn@lists.oasis-open.org>
Subject	RE: [wsn] Preconditions

Didnt we just remove pre-conditions
and collapse them into a single list of filters? 
As for when they get evaluated
does it matter as long as nothing gets through if they evaluate to false.
 
Martin.
-----Original Message-----
From: Susan Malaika [mailto:malaika@us.ibm.com] 
Sent: 05 November 2004 13:18
To: Patil, Sanjay
Cc: wsn@lists.oasis-open.org
Subject: RE: [wsn] Preconditions

Should the time of evaluation of preconditions go into the specification or be left open to interpretation?

Susan Malaika

To: Susan Malaika/Santa Teresa/IBM@IBMUS, wsn@lists.oasis-open.org
cc:
Subject: RE: [wsn] Preconditions




It's the latter, as I understand.

I guess the notification may not even be produced as a result of evaluating a precondition. For example, if  precondition is debug=true, and the Producer is not in a debug mode.

Thanks,
Sanjay
-----Original Message-----
From: Susan Malaika [mailto:malaika@us.ibm.com]
Sent: Thursday, Nov 04, 2004 4:36 AM
To: wsn@lists.oasis-open.org
Subject: [wsn] Preconditions




When are preconditions evaluated? When a subscription is made? When a notification is about to be produced?

Susan Malaika