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Subject: NEW ISSUE: Scope of CS/Offer/Endpoint
- From: Doug Davis <dug@us.ibm.com>
- To: ws-rx@lists.oasis-open.org
- Date: Wed, 24 Jan 2007 15:56:41 -0500
Title: Scope of CS/Offer/Endpoint
Description:
Current RM spec defines CS/Offer/Endpoint
as:
/wsrm:CreateSequence/wsrm:Offer/wsrm:Endpoint
An RM Source MUST include
this element, of type wsa:EndpointReferenceType (as specified byWS-Addressing).
This element specifies the endpoint reference to which Sequence Lifecycle
Messages,Sequence Traffic Messages, Acknowledgement Requests, and fault
messages related to the offeredSequence are to be sent.
Implementations MUST NOT
use an endpoint reference in the Endpoint element that would prevent the
sending of Sequence Lifecycle Message, Sequence Traffic Message, etc. For
example, using the WS-Addressing "http://www.w3.org/2005/08/addressing/none"
IRI would make it impossible for the RM Destination to ever send Sequence
Lifecycle Messages (e.g. TerminateSequence) to the RM Source for the Offered
Sequence. Implementations MAY use the WS-MakeConnection anonymous URI template
and doing so implies that messages will be retrieved using a mechanism
such as the MakeConnection message.
The inclusion of the "Sequence
Traffic Messages" actually isn't correct. Sequence Traffic Message
(ie. app messages) go to other EPRs, like wsa:ReplyTo - just like RM was
even being used. CS/Offer/Endpoint is supposed to be for RM protocol
messages (Close, Terminate, AckReq...). I think when we switched
over to the new RM terms we got a bit too excited :-) The old
text used to say:
...This element specifies the endpoint
reference to which WS-RM protocol messages related to the offered Sequence
are to be sent.
Proposal:
Remove "Sequence Traffic Message"
from the current definition of CS/Offer/Endpoint. It appears in 2
spots.
thanks
-Doug
______________________________________________________
STSM | Web Services Architect | IBM Software Group
(919) 254-6905 | IBM T/L 444-6905 | dug@us.ibm.com
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