Re: [ubl-ndrsc] Rule: 91

["Eve L. Maler" <eve.maler@sun.com>]

Aha, so "top level" not-equal "global".  Thanks for the correction.  In 
that case, the rule should not say "...which then requires their 
declarations be globally defined."  If we want to prohibit redefinition, 
we ideally should do that in a separate rule, and not (incorrectly) 
imply that naming a type means the definition must be directly beneath 
<xsd:schema>.

	Eve

Chin Chee-Kai wrote:

> On Thu, 17 Jul 2003, Eve L. Maler wrote:
> 
> 
>>>Actually, I believe naming does equate with being global.  A
>>>topLevelComplexType requires its name attribute, and a localComplexType
>>>prohibits its name attribute from being used.  Roughly the same is true
>>>for simple types.  (See http://www.w3.org/2001/XMLSchema.xsd )
> 
> 
> No, without loss of generality, let's just look at complexType.
> 
> A complexType definition is global if and only if it is located
> as one of the immediate children under <xsd:schema>.
> 
> A complexType is named if and only if the name attribute exists 
> in the definition.
> 
> I refer you to XML Schema Part 1: Structures, Section 4.2.2
> example "v2.xsd" part of which is illustrated:
> 
>  <xs:redefine schemaLocation="v1.xsd">
>   <xs:complexType name="personName">
>    <xs:complexContent>
>     <xs:extension base="personName">
>     .....
> 
> By definition, this <xs:complexType> definition is not global
> (not necessarily local), AND named.
> 
> 
> 
> Best Regards,
> Chin Chee-Kai
> SoftML
> Tel: +65-6820-2979
> Fax: +65-6743-7875
> Email: cheekai@SoftML.Net
> http://SoftML.Net/
> 
> 
> 
> 
>>>So probably the rule could be shortened to:
>>>
>>>[R 91]  All types MUST be named.
>>>
>>>Explanatory text could then mention that the purpose is for reuse and
>>>extension, and that the syntactic consequence of the rule is that the
>>>types must all be declared as top-level.
>>>
>>>	Eve
>>>
>>>Chin Chee-Kai wrote:
>>>
>>>
>>>>On Mon, 14 Jul 2003, Dan Vint wrote:
>>>>
>>>>
>>>>
>>>>>>I would modify this rule to be:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>[R 91]   For reuse and extension, all types MUST be named, which then
>>>>>>>requires their declarations be globally defined.
>>>>
>>>>
>>>>Naming does not equate with being global.
>>>
>>>--
>>>Eve Maler                                        +1 781 442 3190
>>>Sun Microsystems                            cell +1 781 354 9441
>>>Web Technologies and Standards               eve.maler @ sun.com
>>>
>>>
> 
> 
> 
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> 
> 

-- 
Eve Maler                                        +1 781 442 3190
Sun Microsystems                            cell +1 781 354 9441
Web Technologies and Standards               eve.maler @ sun.com