some experiments with Jena running on top of JRuby

jena_experiments_j.rb

require "jenasupport_j" # just to prevent me going mad, I suffix all my JRuby stuff with _j

model = ModelFactory.createDefaultModel()
tommorris = model.createResource("http://tommorris.org/")
tommorris.addProperty(model.createProperty("http://xmlns.com/foaf/0.1/name"), "Tom Morris")
model.setNsPrefix("foaf", "http://xmlns.com/foaf/0.1/")
model.write(java.lang.System.out)

# Let's run a SPARQL query over it!
query = "SELECT ?s ?p ?o WHERE { ?s ?p ?o . }"
queryobj = QueryFactory.create(query)
qexec = QueryExecutionFactory.create(query, model)
results = qexec.execSelect()

soln = results.nextSolution() #=> #<Java::ComHpHplJenaSparqlCore::ResultBinding:0xb6c909 @java_object=#<Java::JavaObject:0x488344>>
soln.get("s") #=> #<Java::ComHpHplJenaRdfModelImpl::ResourceImpl:0x6bc75c @java_object=#<Java::JavaObject:0xed8363>>
soln.get("s").to_s #=> "http://tommorris.org/"
soln.get("p").to_s #=> "http://xmlns.com/foaf/0.1/name"
soln.get("o").to_s #=> "Tom Morris"
soln.get("o").class #=> Java::ComHpHplJenaRdfModelImpl::LiteralImpl
soln.get("p").class #=> Java::ComHpHplJenaRdfModelImpl::PropertyImpl

jenasupport_j.rb

require "java"
require "jena.jar"
require "arq-extra.jar"
require "arq.jar"
require "icu4j_3_4.jar"
require "iri.jar"
require "jenatest.jar"
require "json.jar"
require "junit-4.5.jar"
require "log4j-1.2.12.jar"
require "lucene-core-2.3.1.jar"
require "slf4j-api-1.5.6.jar"
require "slf4j-log4j12-1.5.6.jar"
require "stax-api-1.0.jar"
require "wstx-asl-3.0.0.jar"
require "xercesImpl.jar"

include_class "com.hp.hpl.jena.rdf.model.ModelFactory"
include_class "com.hp.hpl.jena.query.Query"
include_class "com.hp.hpl.jena.query.QueryFactory"
include_class "com.hp.hpl.jena.query.QueryExecutionFactory"
include_class "com.hp.hpl.jena.query.QueryExecution"
include_class "com.hp.hpl.jena.query.ResultSet"
include_class "com.hp.hpl.jena.query.QuerySolution"