[DFDL-WG] irrelevant properties

[Steve Hanson]

Mike, this was covered by the 2nd half of errata 3.8 as follows:

Clarify what action a DFDL processor should take when it encounters an 
object that explicitly carries properties that are not relevant to the 
object as defined.
o       Property not applicable to the object’s DFDL annotation.
        Schema definition error. Example is lengthKind on xs:sequence.
o       Property not applicable because of simple type. 
        Warning (optional). Example is calendarPatternKind on xs:string.
o       Property not applicable because of another DFDL property setting. 
        Warning (optional). Example is binaryNumberRep when representation 
is text.
o       Property not applicable because object is local, global or 
reference. 
        Warning (optional). Example is occursCountKind on a global 
xs:element.     **

**  Excludes inputValueCalc and outputValueCalc which give SDE.

IBM DFDL has a big bunch of checks for the warnings, but we are 
considering making them an optional feature on performance grounds.

Regards

Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848



From:   Mike Beckerle <mbeckerle.dfdl at gmail.com>
To:     dfdl-wg at ogf.org, 
Date:   20/12/2012 21:02
Subject:        [DFDL-WG] irrelevant properties
Sent by:        dfdl-wg-bounces at ogf.org




It's hard to search for this. Does anyone recall resolution to this?

If you specify properties that are clearly mismatched e.g., you specify 
dfdl:occursCountKind on an element that isn't an array, or you specify 
dfdl:textStringJustification on a number.

Does this generate an error or a warning or nothing?

Obviously this doesn't cause any issue if these properties are in scope or 
referenced from a format annotation. It's only an issue if they are 
actually written locally in short or long-form annotations right on the 
point where the incompatibility resides.




-- 
Mike Beckerle | OGF DFDL WG Co-Chair | Tresys Technologies
Tel:  781-330-0412
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