Seaborne, Andy wrote:
>
>
> -------- Original Message --------
>> From: Stefano Mazzocchi <mailto:stefanom_at_mit.edu>
>> Date: 9 March 2006 17:14
>>
>> Came across RDF2Go today, basically a JDBC-like layer for RDF triple
>> stores in java, which would allow us to be triple-store neutral and
>> allow easier performance testing across various containers.
>>
>> Has anybody tried it? Are there severe performance drawbacks?
>
> Sorry not tried it in - but the javadoc says it does work at the Jena
> Graph level (the lower level interface) which is the right place to hook
> in.
ok
> It's a object-copying adapter, converting to it's object model
> (java.net.URI, blank node, it's own literal implementations). Blank
> nodes wrap the underlying system blank node - amusing way to do it.
>
>
> An alternative store abstraction is to use SPARQL (QL and protocol)
> which would then work for non-Java stores as well.
sure, but I wonder how much the the cost of network transmission (even
on localhost), resulset serialization/parsing and object model creation
would impact our operations.
> seeAlso: There is project to do a JDBC driver for SPARQL (SPARQL4j) on
> SourceForge.
> http://sourceforge.net/projects/sparql4j/ (despite being named on the
> project, I'm not active).
nice. Do you know how active the project is? seems pretty much dead from
here.
--
Stefano Mazzocchi
Research Scientist Digital Libraries Research Group
Massachusetts Institute of Technology location: E25-131C
77 Massachusetts Ave telephone: +1 (617) 253-1096
Cambridge, MA 02139-4307 email: stefanom at mit . edu
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Received on Thu Mar 09 2006 - 22:24:41 EST