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Re: CORBA vs. XML (was: Re: XML.COM: How I Learned to Love daBomb)
- From: Ruslan Shevchenko <Ruslan@Shevchenko.Kiev.UA>
- To: Brendan Macmillan <firstname.lastname@example.org>
- Date: Sat, 18 Aug 2001 15:25:38 +0300
Brendan Macmillan wrote:
> > > The technology is no different, practically, to CORBA. Nothing will really
> > change, just a new set of tools will be sold, is all :-)
> > In practical terms, SOAP and XML-RPC are different from CORBA because the
> > technology is so bare-bones that it can be understood and deployed in a
> > couple of hours by anyone with a modest scripting background. That's why
> > it's catching on.
> Has anyone published a point-by-point comparison between CORBA and SOAP/XML-RPC?
You can look on thread "SOAP vs CORBA" in comp.object.corba newsgroup.
// and, may be we will write one ;)
> Obviously, using XML makes it human readable; but I think the biggest
> difference is that the latter two are merely method invocation (and that's
> *easy*); while CORBA implements "remote objects", and the horror of issues like
> maintaining state, remote memory management etc and so on.
> Have I got that right?
What's good in XML/SOAP - that it's simple.
What's bad in XML/SOAP - that it's simple.
for CORBA, s/simple/complex/
> Stateful objects turned out to scale terribly, so it was all a waste of effort
> anyway. The simpler, less powerful approach of mere method
Life is go on. State of ftp/htp sesiion, for example, now
watched in CISCO routers ;)
In reality, I dpn't think that it is possible to do something
non-trivial without concept of 'state'.
Exception is simple quering and data retrieving.
And in many cases, that is all. what's needded [i. e. XML can
be used in 80%], but in 20% you need in some more poverfull
<like CORBA >
> actually much better.
> In principle, web services are no different from any other TCP/IP service (like
> ping, telnet, ftp, etc etc etc) except that they use XML, and have a more
> general way of specifying the method to be invoked... whereas CORBA is (was?)
> *much* more ambitious.
I now see place of XML solutions as WAN bridges between different
internal LAN CORBA-based systems of enterprises; if enterprise
is small, it's not need in complex system inside.
// Whay this have sence from technical point of view, you can
// read in our ISTA-2001 article:
> It's a bit like how Java simplified the pointers of C, and the OO of C++, to
> make something that was a *lot* simpler and less error prone, and (by the 80-20
> rule) sufficiently powerful 80% of the time...
> But I really would like to see a point-by-point comparison, if anyone has done
> one, or knows of one (or would like to do one now). ;-)
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GradSoft: Chief Software Architect