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RE: Type checking in DASL

From: Judith Slein <slein@wrc.xerox.com>
Date: Fri, 1 May 1998 07:44:02 PDT
Message-Id: <>
To: "Babich, Alan" <ABabich@filenet.com>
Cc: "'Saveen Reddy (Exchange)'" <saveenr@Exchange.Microsoft.com>, "'www-webdav-dasl@w3.org'" <www-webdav-dasl@w3.org>, "Babich, Alan" <ABabich@felix.filenet.com>, sembower@wrc.xerox.com
It's been a goal of WebDAV and of DASL to keep clients as simple as
possible.  1.4 of the DASL specification says "It is an objective of DASL
to minimize the complexity of clients . . ."  This is the major argument, I
think, for keeping type checking and type conversions on the server side
and keeping type-specific elements out of the query grammar.  Any client
that wants to do this work is, of course, free to; but let's not force
clients to do it just in order to construct a query.

We also provide for alternative query grammars to be carried over DASL, so
it is possible for someone to define another grammar that uses
type-specific comparison operators.  But let's not make this part of the
simplesearch grammar that is required to be supported for compliance with


Name:			Judith A. Slein
E-Mail:		slein@wrc.xerox.com
Internal Phone:  	8*222-5169
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Web Site:    http://www.nde.wrc.xerox.com/users/Slein/slein.htm
Received on Friday, 1 May 1998 10:38:44 UTC

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