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RE: XML over HTTP: SOAP and ...?

• From: Miles Sabin <msabin@c...>
• To: xml-dev@X...
• Date: Wed, 8 Mar 2000 13:24:59 -0000

Tom Scola wrote,
> Every RPC API I've ever used has made network programming 
> *more* difficult in the long run, since they obscure network 
> connection and timeout problems.  These problems will 
> probably outweigh the 2 man-days of development time you
> thought you saved by using SOAP.

Agreed ...

The critical issue for any RPC mechanism whatsoever (SOAP, 
IIOP, RMI, DCOM etc.) is that, unlike local calls, remote calls 
can fail. That means there'll always be a conflict between
transparency (making remote calls look like local calls) and
recoverability (dealing with network failures *as* network 
failures rather than as failures at the application-level).

FWIW I don't think anybody knows how to address this problem
yet ... tho' some of the things that the Aspect Oriented
Programming people are doing look promising. SOAP, to it's
credit, doesn't seem to be pushing too hard in the transparency
direction ... I think that's probably the right choice.

Cheers,


Miles

-- 
Miles Sabin                       Cromwell Media
Internet Systems Architect        5/6 Glenthorne Mews
+44 (0)20 8817 4030               London, W6 0LJ, England
msabin@c...          http://www.cromwellmedia.com/


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