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Re: Fwd: how to convert from RDF/XMl to Typed Node element form usin

Nishit ladha — Sun, 08 Nov 2009 07:06:24 GMT

Hi Andy, Thanks a lot for responding. On using RDF/XML-ABRREV I see one problem.. It merges one node inside the other node. i.e. say ther are 4 nodes A, B, C,

Re: Working with large RDF files

Andrea Splendiani — Sun, 08 Nov 2009 04:03:50 GMT

Not really, but to have a system up and running, especially with TDB, is pretty easy. Like: Model myModel=TDBFactory.creatModel(DIR); ciao, Andrea

Re: Working with large RDF files

Alex Genadinik — Sun, 08 Nov 2009 03:18:29 GMT

Hello, I am going through the SDB and TDB documentation I can find, but is there something someone could recommend with some good code examples and a tutorial

Two small question on Jena TDB

Andrea Splendiani — Sun, 08 Nov 2009 02:28:08 GMT

Hi, I have two quick question: TDB loader: does this work only on the default graph, or is it possible to bulk-load to named graphs ? BGP optimizer: I get the

Re: Joseki - TDB Dataset config, error ?

Damian Steer — Sun, 08 Nov 2009 00:13:24 GMT

... Ah, no. The TDB directory is where the various files -- indexes, data -- that make up the TDB store are located. You can load things into it via your

Re: Working with large RDF files

Alex Genadinik — Sat, 07 Nov 2009 23:36:58 GMT

Thank you Andrea and Andy, I am reading about TDB as we speak :) It looks like it might be exactly what I needed - thank you for putting me on the right path!

Re: Working with large RDF files

Andrea Splendiani — Sat, 07 Nov 2009 23:27:41 GMT

Hi, If you need to save memory, then to have thing on a file won't help that much, as this would be read and held in memory. The best solution is to use a

Re: Working with large RDF files

Alex Genadinik — Sat, 07 Nov 2009 22:51:40 GMT

Hello, I am afraid I am not very familiar with TDB - it is actually time I get acquainted with it. But is it for triple-store databases, or is it something

Re: Joseki - TDB Dataset config, error ?

uocarroll — Sat, 07 Nov 2009 22:16:39 GMT

Ah - think Ive been premature. I don't get the error anymore (i do get one now about the books dataset ... 22:08:54 WARN Configuration :: Failed to

Re: Joseki - TDB Dataset config, error ?

uocarroll — Sat, 07 Nov 2009 22:13:59 GMT

Thanks - I gave it a whirl, and it seems to have worked.

Re: sparql construct + exist()

Andy Seaborne — Sat, 07 Nov 2009 18:56:37 GMT

With SPARQL 1.0, you can' return anything that is not in the graph because BGP matching is the only way to set a variable. With extensiosn ARQ provides, these

Re: Working with large RDF files

Andy Seaborne — Sat, 07 Nov 2009 18:45:31 GMT

Would TDB work for you? it runs same-process as the application - it needs access to the filing system. As I understand it, you don't want to use a persistent

Re: Fwd: how to convert from RDF/XMl to Typed Node element form usin

Andy Seaborne — Sat, 07 Nov 2009 18:37:53 GMT

Your description isn't complete but I think all you need to do is use the "RDF/XML-ABRREV" writer. Are you printing in "RDF/XML"? That outputs very simple

Re: Is it possible to run a Transitive reasoner over a TDB backed m

Andy Seaborne — Sat, 07 Nov 2009 18:36:05 GMT

... One way to improve performance is to materialize all the inferred triples and store them in the model as part of creating the data to published. That way,

Re: Joseki - TDB Dataset config, error ?

Andy Seaborne — Sat, 07 Nov 2009 18:31:53 GMT

I think it's because <#lewist> rdf:type ja:DatasetTDB ; should be <#lewist> rdf:type tdb:DatasetTDB ; (All these namespaces and extending them does make it a