Does anyone have an example on how to properly integrate banana-rdf into a project?
Based on the example on how to use a SPARQL engine, I have tried to set up something for my project, but I get an error that I don't know how to resolve.
import java.net.URL
import org.w3.banana.jena.JenaModule
import org.w3.banana.{SparqlHttpModule, SparqlOpsModule, RDFOpsModule, RDFModule}
object SparqlService extends RDFModule with RDFOpsModule with SparqlOpsModule
with SparqlHttpModule with JenaModule
import SparqlService._
import SparqlService.sparqlOps
import SparqlService.sparqlOps._
import SparqlService.sparqlHttp.sparqlEngineSyntax._
import SparqlService.ops._
val endpoint = new URL("http://dbpedia.org/sparql/")
val query = parseSelect("""
PREFIX ont: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?language WHERE {
?language a ont:ProgrammingLanguage .
?language ont:influencedBy ?other .
?other ont:influencedBy ?language .
} LIMIT 100
""").get
val answers: Rdf#Solutions = endpoint.executeSelect(query).get
val languages: Iterator[Rdf#URI] = answers.iterator map { row =>
row("language").get.as[Rdf#URI].get
}
println(languages.to[List])
Unfortunately, I get the following error and I don't get why.
Error:(27, 26) could not find implicit value for parameter fromPG: org.w3.banana.binder.FromPG[org.w3.banana.jena.Jena,com.hp.hpl.jena.graph.Node_URI] row("language").get.as[Rdf#URI].get
Any idea?
