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   Re: Web Resource Identity

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  • From: "David " <David@Byrden.com>
  • To: "xml" <xml-dev@ic.ac.uk>
  • Date: Wed, 23 Jun 1999 15:04:36 +0100

> From: Paul Prescod <paul@prescod.net>

> What I hear you saying is that the situation at the OMG is identical to
> that in Java, Python, the ODMG and most other object-based environments.
> There is a very basic notion of equivalence that you can depend upon when
> you are enumerating objects at a low level. Object types can invent
> level concepts of identity and equivalence if they want to. 

	To clarify for anyone who is puzzled:

The most basic equivalence = these two references
indicate the same physical bytes in memory. Equaller
than that you cannot get.

Higer level equivalence = generally means that these 
two objects could be swapped without any side effects 
that are visible through the external interface they present 
to the world.

					David Byrden

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