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Re: Reusing Locally Defined Element in the Same parent Tagusin

• From: Ihe Onwuka <ihe.onwuka@gmail.com>
• To: xml-dev@lists.xml.org
• Date: Wed, 9 Jan 2013 14:18:51 +0000

XML Schema (at least 1.0) requires it's reusable artefacts to be
defined globally.

Global/Local declarations have implications beyond scope of reference.

You may find it illuminating to read about Schema Design patterns -
Russian Doll, Salami Slice, Venetian Blind and Garden of Eden.

On Wed, Jan 9, 2013 at 1:18 PM, Nishant Bulchandani
<nbulchandanidev@gmail.com> wrote:
> Well , the reason that it would cost more than the benefits sounds reasonable!
>
> The reason for asking was I was thinking along the lines of
> Programming Languages like C,C++ & Java where local variables have
> this feature.Also , sometimes such questions let you know some
> intricacies which you would have missed all along.
>
> Thanks for the replies:)
>
>
> On 1/8/13, Mukul Gandhi <gandhi.mukul@gmail.com> wrote:
>> Having this kind of feature, usually requires shadowing a declaration
>> higher with a declaration with the same name below. I also feel, that
>> designing an XSD document according to this feature doesn't bring more
>> benefits than costs.
>>
>> On Tue, Jan 8, 2013 at 12:39 PM, Nishant Bulchandani <
>> nbulchandanidev@gmail.com> wrote:
>>
>>> hi,
>>>
>>> For the Snippet below :
>>>
>>> <xs:complexType name="Team">
>>>     <xs:sequence>
>>>         <xs:element name="Name" type="xs:string"/>
>>>         <xs:element name="Size">
>>>             <xs:simpleType>
>>>                 <xs:restriction base="xs:integer">
>>>                     <xs:totalDigits value="1"/>
>>>                 </xs:restriction>
>>>             </xs:simpleType>
>>>         </xs:element>
>>>         <xs:element name="teamLeads">
>>>             <xs:complexType>
>>>                 <xs:sequence>
>>>                     <xs:element ref="Size"/>
>>>                 </xs:sequence>
>>>             </xs:complexType>
>>>         </xs:element>
>>>     </xs:sequence>
>>> </xs:complexType>
>>>
>>>
>>> The element "Size" has local scope , Why Can't it be reused locally?
>>> Usually in Programming Languages , a local element is accessible in
>>> its complete Local Scope.Why isn't it implemented the same way
>>> here?(i.e Why is "Size" not referenceable inside the whole "Team" Tag
>>> )
>>>
>>>
>>> Thanks
>>>
>>
>>
>>
>>
>> --
>> Regards,
>> Mukul Gandhi
>>
>
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• References:
  • Reusing Locally Defined Element in the Same parent Tag using "ref" ?
    • From: Nishant Bulchandani <nbulchandanidev@gmail.com>
  • Re: Reusing Locally Defined Element in the Same parent Tagusing "ref" ?
    • From: Mukul Gandhi <gandhi.mukul@gmail.com>
  • Re: Reusing Locally Defined Element in the Same parent Tagusing "ref" ?
    • From: Nishant Bulchandani <nbulchandanidev@gmail.com>