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Subject: Re: [wsdm] WSRF requirements for discovery
Hi, After listening to the discussion today, it occurs to me that discovery (discoverability?) might be usefully described in terms of notifications. This is because I think the same fundamental architectural issues are at work when: (1) A consumer wishes to subscribe to notifications on a given topic. (2) A consumer wishes to discover the existence of resources for a given type (or, property list, or, attribute set, or, wsdl fragment) If a ws-r were to emit a notification at instantiation time with a topic of "discovery", a reference to wsdl, its known epr and publish within a brokered framework, then it would be possible for a consumer to subscribe to a"discovery" topic (maybe a subtopic of a ws-r type would help here...). Subject, of course, to security and access rights, etc. I am assuming that ws-n might support some mechanism for a consumer to subcribe to a topic, like "discovery", and be able to obtain the past (unique) events on topic. Such a list should ultimatedly provide the discoverability consumer with a list of ws-r eprs, each as reported during instantiation by the ws-r itself. So, how might a structured "discovery" topic be worked into the ws-n scheme? Comments? Regards, Mark John DeCarlo wrote: > > D) Managed Resource Creation/Deletion Events. Manageability Consumer > is there first. As each resource is made manageable, an event > (containing the EPR in the payload) goes to the Consumer. > >
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