On 08/01/13 17:42, aidy lewis wrote:
Hi,
I have a RDF statement that I have added to the Jena model. The
statement contains a blank node.
_:blankNode <urn:b> <urn:c> .
To identify this blank node, I am using the isAnon method.
// Scala code
model.listStatements().toList().foreach(f =>
println(f.getSubject.getLocalName + " " + f.getSubject.isAnon))
//
For some reason, true is not being returned for the blank node.
I get "null true" (code below)
If you get something non-null from getLocalName then it isn't a blank
node. It's a URI node.
f.getSubject.getLocalName is the local name of a URI.
The bNode label is:
f.getSubject.getId.getLabelString
---------------------
package dev
import com.hp.hpl.jena.sparql.sse.SSE
import com.hp.hpl.jena.rdf.model.ModelFactory
import com.hp.hpl.jena.rdf.model.Statement
object ReportBNode {
def main(arrgs:Array[String]) : Unit = {
import scala.collection.JavaConversions._
val triple = SSE.parseTriple("(_:blankNode <urn:b> <urn:c>)")
val model = ModelFactory.createDefaultModel()
model.getGraph.add(triple)
model.listStatements().foreach(f =>
println(f.getSubject.getId.getLabelString + " " +
f.getSubject.isAnon()))
}
}
---------------------
Am I using the correct approach?
