[wsrp-interfaces] State change in getMarkup?

One issue I would like to bring up again (maybe just as a clarification for
me) is the ability of an entity to modify state in getMarkup.
If I remember correctly be decided that an entity should not be able to
modify conversational state in getMarkup, primarily for the reason that we
want to be able to write a stateless consumer. Such a consumer would need
to know all of the conversational state of all portlets on a page before it
streams any markup to the client (because the consumer wants to encode the
state in the URL).

1. What about the sessionID? Currently we allow getMarkup to return a
sessionID. Wouln't a stateless consumer need to encode this ID also in the
client URL? How could he do so if it might change in getMarkup?
2. JSR168 does not prevent portlets from modifying state in the service
method (the getMarkup equivalent). How does this match with WSRP?

Best regards
Carsten Leue

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Dr. Carsten Leue
Dept.8288, IBM Laboratory B鐽lingen , Germany
Tel.: +49-7031-16-4603, Fax: +49-7031-16-4401