[Xml-bin] Some central design issues

[Anjana Manian]

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> The primary goals I just layed out on the xml-dev list are: 
> o  Binary structured organization with fast traversable indexing using a
> relative handle/pointer system.

Yes, we are aiminig at this. A DOM like traversal using the binary
format is what we would like to achieve.
 
> o  Modifiability in-place.

This may be too much of overhead. The aim is to target fast reading and
accessing than modifiying the data. 
 
> o  Doing this efficiently in flat, chunked buffers that allow both
> memory and wire format to be the same, with an optional 'compress' step
> that removes working 'holes'.

We also are aiming at on-the-fly decompression/deserialization of the
compressed binary format. The goal is to be able to build the DOM tree
or generate SAX events from the compressed binary data on-the-fly in
case of transmission of binary stream over the wire. 

> While most apps need to be able to produce text XML, the goal is to
> avoid it altogether for some portion of import/export/work processing
> steps.

Yup, working with the binary compact xml representation will be more
efficient than managing the hug in-memory DOM tree. 

> 
> Since you are working on this at Oracle, I'll mention that I also added:
> 
> If anyone wants to sponsor me at my consulting rate to complete this
> fulltime as an open source project, let me know.

Sure. Will let you know if I hear about something. 

Thanks,
Anjana
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