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Subject: RE: [wsn] Multiple endpoints in IRP?
I have a related question here -- Does the IRP require that multiple WS Resources of the same type share a single endpoint? For example, is it required that the EPRs for all the Subscriptions created by a NotificationProducer have the same endpoint address. Or would it simply be considered as a common practice (isn't that really a pattern)? Thanks, Sanjay > -----Original Message----- > From: Vambenepe, William N [mailto:vbp@hp.com] > Sent: Thursday, Aug 05, 2004 2:59 PM > To: Steve Graham; David Hull > Cc: wsn@lists.oasis-open.org > Subject: RE: [wsn] Multiple endpoints in IRP? > > > (with my TC member hat on, not my chair hat) > > The statement you pointed out is really just a reinforcement of the > rules of the IRP. And, as Steve says, it doesn't imply any > capability to > address WS-Resources as groups. Or did I misunderstand your question > David? > > William > > > ________________________________ > > From: Steve Graham [mailto:sggraham@us.ibm.com] > Sent: Thursday, August 05, 2004 1:43 PM > To: David Hull > Cc: wsn@lists.oasis-open.org > Subject: Re: [wsn] Multiple endpoints in IRP? > > > > hi David: > I would think that one of our WSDM colleagues could comment further. > But from my read of the statement you quoted from WSDM MUWS, it was > simply observing that a manageability endpoint (eg a Web service > endpoint) may be the front end for multiple resources. Therefore the > IRP must be used to identify any single one of those resources. I > didn't get the read that there was any capability implied to access a > group of more than one resource with a single EPR. This is > not possible > from what I understand of WS-Addressing. > > sgg > > ++++++++ > Steve Graham > (919)254-0615 (T/L 444) > STSM, On Demand Architecture > Member, IBM Academy of Technology > <Soli Deo Gloria/> > ++++++++ > > > > > David Hull <dmh@tibco.com> > > 08/05/2004 04:14 PM > > > To: wsn@lists.oasis-open.org > cc: > Subject: [wsn] Multiple endpoints in IRP? > > > > While reading through WSDM MUWS, I ran across this interesting > statement: > > "If the manageability endpoint corresponds to a variable > number (zero or > > more) of manageable resources, then the WSRF Implied Resource Pattern > MUST be followed. This means that the element(s) listed in the > ReferenceProperties of a WS-Resource qualified EPR must be > included in > the header of messages sent to such manageability endpoints." > > This seems to imply a WS-Address with multiple ReferenceProperties > elements, one for each EPR. > > Does the IRP allow for multiple resources to be addressed as > a group? > Does this have to be done via repeated ReferenceProperties > elements, or > could one give a predicate instead, or bake something magic into the > Address URI? > > I realize that the IRP is in a fluid state at the moment, but I'd be > interested to know current thinking. Is this the sort of > issue the WSRP > > subgroup is trying to address? > > >
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