• From: "David " <David@B...>
• To: "xml" <xml-dev@i...>
• Date: Wed, 23 Jun 1999 15:04:36 +0100

> From: Paul Prescod <paul@p...>


> 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
higher
> 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



xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i...
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo@i... the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@i... the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@i...)

• Prev by Date: Re: Storing application state as XML
• Next by Date: Speaking at SD99 East
• Previous by thread: RE: Web Resource Identity
• Next by thread: Re: Web Resource Identity
• Index(es):
  • Date
  • Thread