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MathGroup Archive 2007

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Re: Integrated Data Sources

  • To: mathgroup at smc.vnet.net
  • Subject: [mg80240] Re: [mg80062] Integrated Data Sources
  • From: John Fultz <jfultz at wolfram.com>
  • Date: Wed, 15 Aug 2007 04:24:03 -0400 (EDT)
  • Reply-to: jfultz at wolfram.com

No, the feature is not related to the DatabaseLink.  It's handled by a separate 
piece of technology which we internally refer to as the "paclet manager".  A
"paclet" is just our name for bits of data in Mathematica which are synchronized 
with Wolfram servers via the paclet manager under appropriate circumstances.
Right now, that includes the integrated data sources and the documentation, and 
it may very well include more items in the future.  The system is not 
user-extensible at this time, although you're not the first to make such a 
request.

Sincerely,
 
John Fultz
jfultz at wolfram.com
User Interface Group
Wolfram Research, Inc.


On Sat, 11 Aug 2007 02:20:00 -0400 (EDT), rxm at inbox.com wrote:
> I'm confused about the Integrated Data Sources in
> Mathematica 6.  Theo Gray, on the Wolfram Blog makes the
> claim that
>
> It's really more productive to forget about the database
> aspect of things and just think of data functions like
> any other Mathematica functions that return answers <
> ...stuff deleted...> don't worry about calling the data
> functions many times: they cache cleverly and are very
> fast after the initial download or update.
>
> Are those statements related to DatabaseLink?  What controls
> the cache?  Does one need to write custom Java or C code to
> implement something like ChemicalData[]?  What are Paclets
> and how are they related to this topic?
>
> Illumination appreciated.
>
> (
> Link to Theo Grays article:
> http://blog.wolfram.com/2007/05/computable_data_functions.html
> )




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