[dfdl-wg] Telcon Notes

[Westhead, Martin (Martin)]

Present


 

Geoff Judd

Bob McGrath

Mike Beckerle

Martin Westhead

Steve Hanson

 


Uncertainty Document


No more comments at this point. Some minor IBM modifications.


Properties Document


 

-          Need to add physical reps for binHex and base64Encoded

-          Discussion of opaque data. There was a lengthy discussion of
the properties and conversions surrounding opaque and binary data.
Martin made a proposal that needs careful consideration, it is as
follows:

 

Steve's doc has groups of logical representations and then repType
properties which correspond to physical representations of those groups.
It currently contains the group Binary which has logical representations
xs:hexBinary and xs:base64Binary and the representation type
'binaryStream'. The proposal is as follows:

 

1.	Keep the group Binary. It covers situations where a binary
representation in the logical model is either what we really want or is
simply the best we can do.
2.	Add the reptype 'text' to the group Binary. This is to cover
text representations of binary data. i.e. we want to interpret the bytes
on the disk as a text representation of binary data. [Question: what if
the representation is base64 but we would like the logical model to
represent it as xs:hexBinary? What if it is uuencoded?]
3.	Add a new Group called Opaque. This would have the logical type
xs:any and the representations 'text' or 'binaryStream'. A text
representation means that this is an opaque string and it should be
included in the logical model as CDATA. A binary representation means
that it is an opaque Blob and it should be included in the logical model
using a binary representation. We can choose any binary representation
let us say hexBinary.

 

 


Arrays Update


 - Bob drew attention to a length calculation proposal in Mike's recent
emails. Do we like it?

 

 

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