[JENA-2346] Status of OWL 2 support

• Type: Question
• Status: Closed
• Priority: Major
• Resolution: Information Provided
• Affects Version/s: Jena 4.6.0
• Component/s: Fuseki
• Assignee: Andy Seaborne
• Reporter: Stefan Bischof
• Created: 09/Sep/22 14:00
• Updated: 19/Sep/22 09:16
• Resolved: 19/Sep/22 09:16

Description

What is the status of OWL 2 (OWL 2 RL or OWL 2 QL) inference support in Jena?

Particularly, is there a way to configure Fuseki to support property chain axioms?

Additional question: Is there a way to configure Fuseki with inference AND named graphs? The configuration I came up with, only contains the default graph:

<#service> rdf:type fuseki:Service ;
    fuseki:name              "ds" ;   # http://host:port/ds
    fuseki:serviceQuery      "sparql" ;    # SPARQL query service
    fuseki:serviceUpdate     "update" ;    # SPARQL update service
    fuseki:serviceReadWriteGraphStore "data" ;     # SPARQL Graph store protocol
    fuseki:dataset           <#dataset> ;
    .

<#dataset> rdf:type ja:RDFDataset;
     ja:defaultGraph <#inferenceModel>
     .

<#inferenceModel> rdf:type      ja:InfModel;
     ja:reasoner [ ja:reasonerURL <http://jena.hpl.hp.com/2003/OWLFBRuleReasoner> ];
     ja:baseModel <#baseModel>;
     .
tdb:GraphTDB  rdfs:subClassOf  ja:Model .
<#baseModel> rdf:type tdb:GraphTDB;  # for example.
     tdb:location "/fuseki-base/databases/tdb";
     # etc
     .