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Subject: RE: [wsrp] spec-2.0-draft-05: events and blocking actions

Section of the draft spec says: "While the Consumer MAY invoke
handleEvent() multiple times for any one portlet while preparing to
gather markup, it MUST NOT invoke handleEvent() an additional time while
the portlet is already processing an event for the same End-User."

While it may not be stated, concurrent calls to different producers or
to the same producer for different portlets are allowed (and of course
also for the same portlet for different users).


-----Original Message-----
From: Subbu Allamaraju [mailto:subbu@bea.com] 
Sent: Wednesday, March 09, 2005 5:10 PM
To: wsrp@lists.oasis-open.org
Subject: Re: [wsrp] spec-2.0-draft-05: events and blocking actions

> There hasn't been an agreement on blocking semantics yet. I would be 
> against any semantics beyond requiring all event distribution (Note
> a Consumer could consider a Portlet which hasn't responded in a timely

> manner to have finished, but failed to return a response) to end
> starting the getMarkup step.

I agree that the consumer should wait for event distribution to complete

before starting getMarkup step. I've a follow-up question on the nature 
of event distribution.

Can a consumer dispatch events concurrently to various producers?

If the answer "yes" or "may be", then another question to ask is whether

a consumer can dispatch two events (or two batches of events) to a 
producer for the same portlet? If the answer is "yes", then it is going 
to complicate state management for the consumer. This would also make 
the outcome less predictable. It would be hard to debug for 
portal/portlet developers.



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