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RE: Collections

From: Yaron Goland <yarong@microsoft.com>
Date: Wed, 24 Sep 1997 14:57:01 -0700
Message-ID: <11352BDEEB92CF119F3F00805F14F48503C27005@RED-44-MSG.dns.microsoft.com>
To: "'Judith Slein'" <slein@wrc.xerox.com>, ejw@ics.uci.edu
Cc: "'w3c-dist-auth@w3.org'" <w3c-dist-auth@w3.org>
Clearly we can at best require that servers reply with but a single
level. This is the minimum requirement for interoperability. Servers are
free to return more levels if they want but a client can not depend upon
it.

	Yaron

> -----Original Message-----
> From:	Judith Slein [SMTP:slein@wrc.xerox.com]
> Sent:	Wednesday, September 24, 1997 7:10 AM
> To:	ejw@ics.uci.edu
> Cc:	'Judith Slein'; 'w3c-dist-auth@w3.org'
> Subject:	RE: Collections
> 
> At 03:45 PM 9/16/97 PDT, Jim Whitehead wrote:
> >
> 
> >> To reconcile the two specifications, I think (1) it would be very
> useful 
> >for
> >> us to provide an index that describes the entire hierarchy rather
> than 
> >just
> >> one level.
> >
> >The issue here is how to bound the size of the index results.  DRP is
> able 
> >to bound the size of their index results because this index file can
> be 
> >manually created, and because the creator of the index file can
> ensure that 
> >it will never become too large.  I don't think DRP is suggesting that
> their 
> >index files be used as a general purpose mechanism for retrieving the
> 
> >contents of all collections.  Rather, DRP is interested in getting a 
> >consistent configuration of resources (and their content identifiers)
> for 
> >each "channel," which is presumably a smaller set than all possible 
> >resources on the server.
> >
> >My fear with returning a full depth infinity index for all cases is
> that 
> >some cases (e.g., collections high up in a hierarchy) may return very
> large 
> >results, which could cause a problem for low-memory clients.
> >
> 
> I see that this is a problem.  I wonder whether we could let the
> client
> specify one level or depth=infinity in the request, or perhaps specify
> a
> maximum size for the response.
> 
> --Judy
> 
> Name:			Judith A. Slein
> E-Mail:			slein@wrc.xerox.com
> Internal Phone:  	8*222-5169
> External Phone:		(716) 422-5169
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Received on Wednesday, 24 September 1997 17:57:20 GMT

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