Can I configure Jena Fuseki with inference and TDB?

问题:

I want to configure Fuseki with an inference model supported by TDB.

I have been able to configure it with a Memory Model, but not with a TDB Model where I could update triples.

I am using the following assembler description:

@prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> . @prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .  [] ja:loadClass "com.hp.hpl.jena.tdb.TDB" . tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset . tdb:GraphTDB rdfs:subClassOf ja:Model .  <#dataset> rdf:type ja:RDFDataset ;        ja:defaultGraph <#infModel> .  <#infModel> a ja:InfModel ;      ja:baseModel <#tdbGraph>;       ja:reasoner            [ja:reasonerURL <http://jena.hpl.hp.com/2003/RDFSExptRuleReasoner>].  <#tdbGraph> rdf:type tdb:GraphTDB ;     tdb:location "DB" ; .

It works fine and it is able to do RDFS inference and even to insert new triples. However, once I stop and restart the server, it raises the following exception:

Error 500: Invalid id node for subject (null node): ([000000000000001D], [00000000000000AF], [000000000000003D])

回答1:

<#tdbGraph> rdf:type tdb:GraphTDB ;     tdb:location "DB" ; .

Get rid of the semi colon after the second statement and terminate with the full stop ie:

<#tdbGraph> rdf:type tdb:GraphTDB ;         tdb:location "DB".

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