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Re: Proposal for issue 78: RPC structs and Encoding root attribute

From: Marc Hadley <marc.hadley@sun.com>
Date: Tue, 19 Feb 2002 16:06:52 +0000
Message-ID: <3C72781C.2000305@sun.com>
To: Jacek Kopecky <jacek@systinet.com>
CC: xml-dist-app@w3.org
>  your rewrite is certainly cleaner, thank you for it. But in any
> case the vague part stays: "...and element information items that
> may appear to be roots of a graph but are not." What does it mean 
> to "may appear to be root"?

 >
I guess being a "top level" element. Since we don't specifically 
prohibit other "top level" elements then we need some way to 
differentiate between roots and non-roots.


>  I would like to see us mandate that the non-roots be marked as 
> such - your option b.
>  How do you feel about removing the "root" stuff altogether?

 >
Fine if we agree some way to differentiate the root if other "top level" 
elements are allowed.

Regards,
Marc.


>  Best regards,
> 
>                    Jacek Kopecky
> 
>                    Senior Architect, Systinet (formerly Idoox)
>                    http://www.systinet.com/
> 
> 
> 
> On Tue, 19 Feb 2002, Marc Hadley wrote:
> 
>  > Jacek Kopecky wrote:
>  >  > >  2) Rephrase the long paragraph into:
>  > >  >>The root attribute information item can be used to label
>  > > serialization roots that are not true roots of an object graph so
>  > > that the object graph can be deserialized. True roots of a
>  > > serialized graph have the implied value of "true" for this
>  > > attribute information item or they may explicitly be labeled as
>  > > true roots with a root attribute information item with a value of
>  > > "true". An element information item that is not a serialization
>  > > root but may appear so SHOULD/MUST explicitly be labeled as not
>  > > being a serialization root with a root attribute information item
>  > > with a value of "false".<<
>  > >  >  > This is still potentially a bit confusing I think. How about:
>  >  > "The root attribute item is used to distinguish between element 
>  > information items that are true roots of a serialised graph and element 
>  > information items that may appear to be roots of a graph but are not. 
>  > Element information items that are true roots MAY be labelled with a 
>  > root attribute information item with a logical value of "true". Element 
>  > information items that are not roots MAY be labelled with a root 
>  > attribute information item with a logical value of "false".
>  >  > We may want to change the two MAYs to SHOULDs or MUSTs depending on how 
>  > we see root being used. Personally I think it would be preferable if we 
>  > mandate one of either:
>  >  > (a) the root is labelled with "true" or,
>  > (b) the non-roots are labelled with "false".
>  >  > Rather than leave it up to a sender to decided which to do.
>  >  >  > regards,
>  >  > Marc.
>  >  > 
> 


-- 
Marc Hadley <marc.hadley@sun.com>
XML Technology Centre, Sun Microsystems.
Received on Tuesday, 19 February 2002 11:07:05 GMT

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