Will discuss on today's WG call...
Regards
Steve Hanson
Architect, Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh@uk.ibm.com
tel:+44-1962-815848
From: Mike Beckerle
To: Suman Kalia
Cc: dfdl-wg@ogf.org
Date: 05/12/2011 14:14
Subject: Re: [DFDL-WG] short form on xs:schema?
Sent by: dfdl-wg-bounces@ogf.org
Yes I was thinking of this as the short form for setting default
properties.
I really came up with this while trying to create very compact unit tests
for the UofI Daffodil software. This is written in Scala (really the next
programming language you should learn. Runs on JVM, fully integrates with
Java, lots of other goodness.) Here's an example, I elipsed out the
namespace properties.
def testInt42() {
val data = bytesFromChars("\u0000\u0000\u0000\u002A")
// nice: scala has built in XML support. No string quoting hell, just
write the XML (hey, that rhymes :-)
val testSchema =
val res = parser(testSchema).data(data).parse()
val ans = (res \ "testElement")(0).text.asInt
assertEquals(42, ans)
}
I think the same principles will apply to tutorial and expository
materials about DFDL. I.e., I like being able to put default format
properties directly on the xs:schema element!
This will really only be viable for very small examples where you only
need a few properties. That said, those are useful for people learning the
language, and trying it out via APIs.
But, I had never seen it before, and wasn't discussed, so I looked for it
in the spec, and found nothing saying you can't do it. The language in the
spec suggests it is allowed.
...mikeb
On Dec 4, 2011 7:55 PM, "Suman Kalia" wrote:
One way to view this annotation would be as if it is defined on the
default format at the xs:schema.. Question would be what if dfdl:format
at xs:schema also has dfdl:encoding specified - which one would win ?..
Suman Kalia
IBM Canada Lab
WMB Toolkit Architect and Development Lead
Tel: 905-413-3923 T/L 313-3923
Email: kalia@ca.ibm.com
For info on Message broker
http://www.ibm.com/developerworks/websphere/zones/businessintegration/wmb.ht...
From: Mike Beckerle
To: dfdl-wg@ogf.org
Date: 12/02/2011 05:46 PM
Subject: [DFDL-WG] short form on xs:schema?
Sent by: dfdl-wg-bounces@ogf.org
I don't know that we ever talked about this.
Most schema constructs support short form
Does the xs:schema itself support short form for the "default" format
properties?
...
--
Mike Beckerle | OGF DFDL WG Co-Chair
Tel: 781-330-0412
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