[gmpi] Re: low level API - Abstract Factory summary
- From: "gogins@xxxxxxxxxxxx" <gogins@xxxxxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Wed, 9 Feb 2005 12:50:54 -0500
COM is far from the only system that depends on GUIDs. They are part of DCE
and may be used in implementations of other distributed systems as well.
They were originally designed precisely for genuinely distributed systems.
Original Message:
-----------------
From: Ron Kuper RonKuper@xxxxxxxxxxxx
Date: Wed, 9 Feb 2005 12:11:09 -0500
To: gmpi@xxxxxxxxxxxxx
Subject: [gmpi] Re: low level API - Abstract Factory summary
>>>
and more to the point, from my perspective: you're taking a mechanism
that has not been well tested in a genuinely distributed environment
<<<
I disagree. My registry contains thousands of CLSIDs. Every system
running Windows on the desktop does too, and they all depend on the
uniqueness of GUIDs. COM wouldn't work otherwise.
Windows may not be truly distributed as the web, but there a lot of
sites running Windows. Enough to give a rational person statistical
reassurance that whatever algorithm is used for creating GUIDs is really
creating unique GUIDs.
As I'm typing this Mike Berry already posted the question about how
newbies name plugins. How about malicious developers putting plugins
under my vendor name tree?
I see the GUID as a kind of unique key, as if every plugin on the planet
lived in a centralized database.
-----Original Message-----
From: gmpi-bounce@xxxxxxxxxxxxx [mailto:gmpi-bounce@xxxxxxxxxxxxx] On
Behalf Of Paul Davis
Sent: Wednesday, February 09, 2005 11:58 AM
To: gmpi@xxxxxxxxxxxxx
Subject: [gmpi] Re: low level API - Abstract Factory summary
>The point about using strings is that you can stuff on a different
prefix
>if you like to ensure uniqueness, eg people why wanted to use GUIDs
could
>use a standard prefix like (URI example):
and more to the point, from my perspective: you're taking a mechanism
that has not been well tested in a genuinely distributed environment
(despite the claims in the docs for CoCreateGUID and the DCE docs on
GUID's), and proposing it as better from a scheme that was actually
devised in the context of and has been demonstrated to work in a
massively distributed and decentralized environment.
nobody is in any doubt that:
http://foo.bar.baz/something/somethingelse
is a different document than
http://baz.foo.bar/onething/thenanother
moroever, the URI can actually encode some useful, human-legible
information. and i just don't see what grounds we have for doing
anything differently than the semantic web crew do, since they face
similar issues on a massively larger scale.
no contest, IMHO.
--p
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