Thank you the syntax error removes but it gives me error "xWHERE".. I know very minor mistake but not sure where it is.
__________________________________________________________________________ *String querystring="PREFIX ss:<http://www.semanticweb.org <http://www.semanticweb.org>>" +"SELECT ?y" +* * "WHERE {" + " ?y ss:hasson ss:zia " + "}";* ___________________________________________________________________________ On Thu, Aug 20, 2015 at 9:48 PM, Andy Seaborne <[email protected]> wrote: > On 20/08/15 21:19, [email protected] wrote: > >> This may or may not be the entire problem, but in the line: >> >> String querystring="PREFIX ss:<http://www.semanticweb.org"; +"SELECT ?x" >>> + "WHERE {" + "?x ss:hasson ss:zia" + "}"; >>> >> >> you opened the angle-brackets around your namespace without closing them. >> > > Exactly. > > >> Exception in thread "main" com.hp.hpl.jena.query.QueryParseException: > >> Encountered " "<" "< "" at line 1, column 11. > > > Put some newlines into the string! > > ... and then the next error is at "SELECT ?x" + "WHERE whch is > "SELECT ?xWHERE {" > > i.e a variable called "xWHERE" > > > >> --- >> A. Soroka >> The University of Virginia Library >> >> On Aug 20, 2015, at 4:15 PM, kumar rohit <[email protected]> wrote: >> >> import java.io.InputStream; >>> >>> import com.hp.hpl.jena.ontology.OntDocumentManager; >>> import com.hp.hpl.jena.ontology.OntModel; >>> import com.hp.hpl.jena.ontology.OntModelSpec; >>> import com.hp.hpl.jena.query.Query; >>> import com.hp.hpl.jena.query.QueryExecution; >>> import com.hp.hpl.jena.query.QueryExecutionFactory; >>> import com.hp.hpl.jena.query.QueryFactory; >>> import com.hp.hpl.jena.query.ResultSet; >>> import com.hp.hpl.jena.query.ResultSetFormatter; >>> import com.hp.hpl.jena.rdf.model.ModelFactory; >>> import com.hp.hpl.jena.util.FileManager; >>> >>> >>> public class famtree { >>> static final String inputfile =("C://Users//asad >>> ali//Desktop//Project//protege//relation.owl"); >>> >>> public static void main(String[] args) { >>> OntDocumentManager mgr=new OntDocumentManager(); >>> >>> OntModelSpec spec=new OntModelSpec(OntModelSpec.OWL_DL_MEM); >>> >>> spec.setDocumentManager(mgr); >>> >>> OntModel m = ModelFactory.createOntologyModel(spec,null); >>> >>> InputStream in=FileManager.get().open(inputfile); >>> if (in==null) >>> { >>> throw new IllegalArgumentException("File" + inputfile + "not found"); >>> } >>> m.read(in,""); >>> >>> String querystring="PREFIX ss:<http://www.semanticweb.org"; +"SELECT ?x" >>> + >>> "WHERE {" + "?x ss:hasson ss:zia" + "}"; >>> >>> Query query=QueryFactory.create(querystring); >>> >>> QueryExecution qe = QueryExecutionFactory.create(query, m); >>> >>> ResultSet results = qe.execSelect(); >>> >>> ResultSetFormatter.out(System.out, results, query); >>> >>> qe.close(); >>> } >>> } >>> >>> The following error displays in Eclipse >>> ___________________________________ >>> >>> Exception in thread "main" com.hp.hpl.jena.query.QueryParseException: >>> Encountered " "<" "< "" at line 1, column 11. >>> Was expecting: >>> <IRIref> ... >>> >>> at >>> >>> com.hp.hpl.jena.sparql.lang.ParserSPARQL11.perform(ParserSPARQL11.java:102) >>> at >>> com.hp.hpl.jena.sparql.lang.ParserSPARQL11.parse$(ParserSPARQL11.java:53) >>> at com.hp.hpl.jena.sparql.lang.SPARQLParser.parse(SPARQLParser.java:34) >>> at com.hp.hpl.jena.query.QueryFactory.parse(QueryFactory.java:148) >>> at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:80) >>> at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:53) >>> at com.hp.hpl.jena.query.QueryFactory.create(QueryFactory.java:41) >>> at familytree.famtree.main(famtree.java:37) >>> >> >> >
