On Tue, Mar 26, 2013 at 7:48 AM, Steve Hanson
<smh@uk.ibm.com> wrote:
James
dfdl:checkConstraints() does not validate
against a specific facet, it validates against all facets and the fixed
attribute. So it checks that a simple element conforms to its simple type.
It does exactly the checks that switching on validation would do,
but it causes a processing error instead of a validation error when it
fails, enabling the parser to backtrack.
<xsd:element name="DayOfTheWeek“
minOccurs="0"
…>
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration
value="Mon" />
<xsd:enumeration
value="Tue" />
<xsd:enumeration
value="Wed" />
…
</xsd:restriction>
</xsd:simpleType>
<xsd:annotation>
<xsd:appinfo
source="http://www.ogf.org/dfdl/">
<dfdl:discriminator>dfdl:checkConstraints()</dfdl:discriminator>
</xsd:appinfo>
</xsd:annotation>
</xsd:element>
Regards
Steve Hanson
Architect, IBM Data Format Description Language (DFDL)
Co-Chair, OGF
DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848
From:
"Garriss Jr.,
James P." <jgarriss@mitre.org>
To:
"dfdl-wg@ogf.org"
<dfdl-wg@ogf.org>,
Date:
26/03/2013 11:39
Subject:
[DFDL-WG] checkConstraints
example?
Sent by:
dfdl-wg-bounces@ogf.org
Can you please supply an example of using
checkConstraints to valid an enumeration? There’s not one in the
spec, and none of the tutorials I have demo this.
Suppose I have this DFDL:
<xsd:element name="DayOfTheWeek“…>
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration
value="Mon" />
<xsd:enumeration
value="Tue" />
<xsd:enumeration
value="Wed" />
…
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
TIA--
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