Stardog Rule If-Then construct

[harshal patni]

Hello Everyone,

            I am fairly new to Stardog. I have written If-Then query in Stardog format, however i am unable to execute that query on the Query editor at http://localhost:5820/dbName/query

Everytime I click "Execute" it gives me a format error. Can someone please tell me how can I execute this rule using JAVA?

Here is the query - 

@prefix rule: <tag:stardog:api:rule:> .

[] a rule:SPARQLRule ;

rule:content """

PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

PREFIX : <http://www.motivemi.com/ontologies/2014/09/mmi.owl#>

IF {

    ?x rdf:type :Evidence

}

THEN 

{

  ?x rdf:type :EVDConcept .

} """.

And here is the error - 

Error!

Parse error on line 1:
@prefix rule: <tag:s
^
Expecting 'BASE', 'PREFIX', 'SELECT', 'CONSTRUCT', 'DESCRIBE', 'ASK', 'LOAD', 'CREATE', 'INSERTDATA', 'DELETEDATA', 'DELETEWHERE', 'DELETE', 'INSERT', 'WITH', 'CLEAR', 'DROP', 'ADD', '

[Mike Grove]

You don't execute rules.  You include them in your TBox and then issue normal SPARQL queries such as "select * where { ?x rdf:type :EVDConcept . }".

Cheers,

Mike 

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