Thanks, for the anwser Andy, I forgot to mention that I've already tried to
setting it with
[] rdf:type fuseki:Server ;
...
ja:context [ ja:cxtName "sdb:unionDefaultGraph" ;
ja:cxtValue "true" ] ;
but it didn't worked.
Anyway, I just ditched my setup and used one John Fereira created, and that
worked for me. (Thanks John!)
Regards,
Eduardo Fernandez
2013/11/7 Andy Seaborne <[email protected]>
> YOu can set it from the command line:
>
>
> --set sdb:unionDefaultGraph=true
>
> may work but may tripup on initialization order (registering sdb:
>
> the long form is:
>
> --set 'http://jena.hpl.hp.com/SDB/symbol#unionDefaultGraph=true'
>
> It may be better to set it in the configuration file:
>
> [] rdf:type fuseki:Server ;
> ...
> ja:context [ ja:cxtName "sdb:unionDefaultGraph" ;
> ja:cxtValue "true" ] ;
> ..
>
>
> (untested - sorry).
>
> More inline.
>
>
>
> On 06/11/13 18:20, Eduardo Fernandez wrote:
>
>> Hi,
>>
>> First a little background:
>> 1. This is my first time using a mailing list, so I hope I'm doing it
>> right.
>> 2. I'm fairly new to Semantic Technologies, and I'm not very familiar with
>> Jena.
>>
>>
>> I set up a Fuseki server to use it as a SPARQL endpoint for a VIVO
>> install.
>> I already set up everything and it seems to be working OK. If I run a
>> query
>> like:
>>
>> SELECT * WHERE { ?s ?p ?o }
>>
>> I don't get any results (I believe that is expected as VIVO uses named
>> graphs?). If I run a query against the Union Graph, e.g.:
>>
>> SELECT *
>> WHERE { GRAPH <urn:x-arq:UnionGraph>
>> { ?s ?p ?o }}
>>
>> I do get results, and that's OK.
>>
>> So, I'm having some issues trying to make a config file that sets up the
>> UnionGraph as the default graph, so I can run queries without having to
>> use
>> the <urn:x-arq:UnionGraph> IRI.
>>
>> I've read the mailing lists regarding VIVO and SDB (VIVO uses SDB). I've
>> tried using the config file John Fereira posted a while ago. Here is the
>> relevant part of the config file:
>>
>>
>> <#sdb-part> rdf:type ja:RDFDataset ; # If ja:namedGraph is used here,
>> there
>> is no correspondence # with the name in the SDB store. ja:defaultGraph
>> <#sdb-one-graph> ; .
>>
>> <#sdb-one-graph> a sdb:Model ; sdb:dataset <#dataset> ; sdb:graphName
>> <urn:x-arq:UnionGraph> ;
>>
>
> That is a general dataset with an SDB graph in it - it'll work but is
> limited if you want multiple graph access.
>
>
>
>>
>>
>> But when I start Fuseki it gives me an exception:
>>
>> "com.hp.hpl.jena.sparql.ARQException: Found two matches: var ?root...."
>>
>
> Different issue - something in the configuration file is wrong such as
> having two types, or using the same uri twice.
>
> Post the config file.
>
>
>
>>
>>
>> Also, in the configuration page for SDB says that I can set the
>> "SDB.unionDefaultGraph" option to true, but I don't know if it can be used
>> in a config file for Fuseki or just when writing apps on Java with SDB ???
>>
>>
>> Any help would be highly appreciated
>>
>>
>> Regards,
>>
>> Eduardo Fernández
>>
>
> Andy
>
>
>>
>
