W3C home > Mailing lists > Public > xmlschema-dev@w3.org > May 2000

Re: Implemenation flexibility for representations of unbounded properties

From: Dan Connolly <connolly@w3.org>
Date: Tue, 09 May 2000 15:34:51 -0500
Message-ID: <3918766B.5E1080F8@w3.org>
To: Peter Canning <canning@vitria.com>
CC: xmlschema-dev@w3.org
Peter Canning wrote:
> [...]
> Are implementations required to
> support arbitrarily large values for the "min occurs" property?

Yes, per the current draft as written.

>  If not
> what are they required to support?
> The similar situation obviously occurs for string valued properties, and
> probably for others
> It would be helpful if the specification gave some guidance in the
> requirements for conformance is these kinds of areas.

Actually, we're hoping the implementors will inform the specification,
at this point:

	NOTE: The use of arbitrary precision
              decimal numbers, including all datatypes
              derived from decimal (e.g., integer) in this
              design impacts the implementation of
              schema processors in a number of places:
              checking maxLength constraints on strings,
              for example. It may impact interchange
              between XML schemas and programming
              languages, databases, etc. 

              Our design discussions did not reveal
              convincing evidence of undue burden
              because of arbitrary precision decimal
              numbers in this design, but we welcome
              further input from implementors. 

	-- http://www.w3.org/TR/2000/WD-xmlschema-2-20000407/#decimal

Dan Connolly, W3C http://www.w3.org/People/Connolly/
Received on Tuesday, 9 May 2000 16:39:01 UTC

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