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PSVI: {document} property

From: Elena Litani <elitani@ca.ibm.com>
Date: Wed, 04 Sep 2002 16:20:30 -0400
Message-ID: <3D766B0E.1B7545B2@ca.ibm.com>
To: www-xml-schema-comments@w3.org

The definition for {namespace schema information information items} [1]
includes 3 properties - {schema namespace}, {schema components}, {schema
documents}. The XML Schema Recommendation specifies that the {schema
components} property could be empty:
The {schema components} property is provided for processors which wish
to provide a single access point to the components of the schema which
was used during assessment. Lightweight processors are free to leave it

On the other hand, the specification seems to require that the
{documents} property should be exposed by all (including lightweight)
processors. Since exposing schema documents is as expensive as exposing
schema components, this requirement seems unreasonable, thus looks as a
bug in the spec.

Xerces2 does not expose this property via the post schema validation
infoset. Other implementations, such as MSXML from Microsoft, do not
seem to expose it either [2]. 

IMO, this is should be an erratum.

[1] http://www.w3.org/TR/xmlschema-1/#nsi-schema_documents

Thanks you,
Elena Litani / IBM Toronto
Received on Wednesday, 4 September 2002 16:20:39 UTC

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