[jsdl-wg] Parameter Sweep new artefact
Michel Drescher
Michel.Drescher at uk.fujitsu.com
Thu Aug 21 08:16:17 CDT 2008
Donal,
I had thought about this and personally intentionally discarded the
argument of "ugliness" - XML documents are per se ugly. ;-)
But you definitely have a point in validating becomes difficult.
Therefore I join forces with you, and define the Document in XML
Schema as follows:
---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP
----------
<xsd:element name="NamespaceBinding">
<xsd:complexType>
<xsd:attribute name="ns" type="xsd:anyURI" use="required"/>
<xsd:attribute name="prefix" type="xsd:NCName" use="required" />
</xsd:complexType>
</xsd:element>
<xsd:element name="DocumentNode" substitutionGroup="sweep:Parameter">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="sweep:NamespaceBinding" minOccurs="1"
maxOccurs="unbounded" />
<xsd:element name="Match" type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
</xsd:element>
---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP
----------
The example therefore would change as follows:
---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP
----------
<sweep:DocumentNode>
<sweep:NamespaceBinding ns="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix
" prefix="foo" />
<sweep:NamespaceBinding ns="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix
" prefix="bar" />
<sweep:Match>//foo:POSIXApplication/bar:Argument[4]</sweep:Match>
</sweep:DocumentNode>
---------- SNIP ---------- SNIP ---------- SNIP ---------- SNIP
----------
Cheers,
Michel
On 21 Aug 2008, at 13:55, Donal K. Fellows wrote:
> Michel Drescher wrote:
>> The following is a brief example how the DocumentNode element would
>> be used in a Sweep:
>> <sweep:DocumentNode
>> mapping="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix foo http://schemas.ggf.org/jsdl/2005/11/jsdl-posix
>> bar">
>> //foo:POSIXApplication/bar:Argument[4]
>> <sweep:DocumentNode>
>> Note that the example is quite artificial as it binds the same
>> namespace to two different prefixes. Nonetheless, it is a valid
>> example.
>
> For myself, I'd not use a list of strings in a mapping attribute
> because
> that's not just awkward to validate, but also ugly! Instead I'd go
> with:
>
> <sweep:DocumentNode>
> <sweep:Map uri="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix"
> prefix="foo"/>
> <sweep:Map uri="http://schemas.ggf.org/jsdl/2005/11/jsdl-posix"
> prefix="bar"/>
> <sweep:Match>//foo:POSIXApplication/bar:Argument[4]</sweep:Match>
> </sweep:DocumentNode>
>
> I suppose this would be a good point to note that the prefixes for a
> particular group of Map terms would need to be unique. The scope of
> the
> uniqueness is really tight though, so I've no problem with it. But
> this
> is all just my take on things. (Gah! The W3C really ought to do a
> way to
> embed XPath in XML without all this crud, but that's outside the scope
> of JSDL-WG for sure, and of OGF too...)
>
> Donal.
--
Michel Drescher
Fujitsu Laboratories of Europe, Ltd.
Hayes Park Central
Hayes End Road
Hayes, Middlesex UB4 8FE
Reg. No. 4153469
+44 20 8606 4834
Michel.Drescher at uk.fujitsu.com
More information about the jsdl-wg
mailing list