On 12/01/2022 09:10, brain wrote:
Hello,
I need some help.
With this guide,
https://jena.apache.org/documentation/fuseki2/fuseki-embedded.html,
<https://jena.apache.org/documentation/fuseki2/fuseki-embedded.html,>
I created an embeded-fuseki server to provide a SPARQL service .
I make an implemention of `org.apache.jena.dboe.storage.StorageRDF`
interface in Java, so I can store rdf triples with my own storage engine(a
distributed database). And it works. I can query the rdfs with SPARQL.
However, I have some problems.
When I try to change my model to a `InfGraph` , the reasoner can't
works. It must be some bugs in my code. but I can't find it .
Is there any guide or something else to help me fix the bug .
Our data stored in a distributed database. We want to do SPARQL Query and
Inference.
Thanks
Hi there,
Could you give some details of your setup?
+ How do you query with RDFS?
+ What level of inferencing are you setting for the InfGraph?
+ Are you using an assembler or setting up the InGraph with code?
If it is RDFS you are wanting, there's a different approach that might
work better for you:
https://jena.apache.org/documentation/rdfs/
This is fixed schema, data-centric (so it is not full RDFS reasoning -
there are no axiomatic triples, and iyt assumes that vocabulary like
subproperty or subclass isn't being subproperty'ed.)
But keeps no in-memory state from the data itself so it scales and you
can directly update the data and see new inferred triples.
Andy
