Intermediaries and state

Jan Algermissen <[email protected]>
Newsgroups gmane.comp.web.services.rest
Message-ID <[email protected]>
Hi y'all-

REST defines the component types user agent, intermediary (proxy and gateway) and origin server.

User agents hold application state

Origin servers hold any state that is not application state

Do intermediaries hold state? Is it possible that they do? Or is that ruled out by definition? Would an origin server turn partially into an origin server once it did hold state?

Can cached responses be considered 'state' from a software architectural style theory point of view? 

Jan
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