On Jun 29, 2006, at 2:28 PM, Gautham Kasinath wrote: > > IMHO, HTTP is only a transport. Hmm...'IMHO'? That isn't really a matter of opinion, it is a matter of definition.
Would you say: "IMHO black is white" ???? See http://www.ics.uci.edu/~fielding/pubs/dissertation/ evaluation.htm#sec_6_5_3 Jan > --- In [email protected], "Mark Baker" > <[EMAIL PROTECTED]> wrote: > > > > On 6/28/06, Gregg Wonderly <[EMAIL PROTECTED]> wrote: > > > Mark Baker wrote: > > > > On 6/28/06, Gregg Wonderly <[EMAIL PROTECTED]> wrote: > > > > > > > >>Humm, but it has been said here that HTTP is an application > layer protocol. The > > > >>semantics of INVOKE are well defined. A remote reference is > indicated in the > > > >>payload which is the service as a URI is in HTTP. The > parameters of the method > > > >>call are arbitrary, but particular to the service, just like the > payload of POST > > > >>or PUT. The INVOKE always returns a reply as HTTP does. Help > me understand > > > >>what is not uniform about that? > > > > > > > > You have to INVOKE an operation. That operation is the > application > > > > layer semantic. > > > > > > Right, and with HTTP, the message layer semantics that transpire > based on you > > > invoking a HTTP operation are at the same level as the eventual > method > > > invocation on the remote end of an RMI INVOKE operation. > > > > That seems right, though it's possible that we might disagree about > > the meaning of "message layer semantics" and "eventual method > > invocation". > > > > In both cases, remote, application layer operations are being > invoked > > over a network. > > > > > There are no real > > > differentiating factors other than nomenclature here are there? > > > > Well, it tells us that HTTP is a higher level "thing" than RMI, > IIOP, > > or how SOAP is commonly used, because it provides the operations > being > > invoked while the others do not. Considering how the entire Web > > services architecture is premised on it being a lower level thing, I > > think that's significant. > > > > Mark. > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Groups gets a make over. See the new email design. http://us.click.yahoo.com/XISQkA/lOaOAA/yQLSAA/NhFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/service-orientated-architecture/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
