Examples of com.hp.hpl.jena.query.QueryExecution.execSelect()

Class com.hp.hpl.jena.query.QueryExecution

Examples of com.hp.hpl.jena.query.QueryExecution.execSelect()

com.hp.hpl.jena.query.QueryExecution.execSelect()
Execute a SELECT query
Important: The name of this method is somewhat of a misnomer in that depending on the underlying implementation this typically does not execute the SELECT query but rather answers a wrapper over an internal data structure that can be used to answer the query. In essence calling this method only returns a plan for executing this query which only gets evaluated when you actually start iterating over the results.

    //System.out.println(Req);
    List<String[]> res = new ArrayList<String[]>();
    
    Query query = QueryFactory.create(Req) ;
        QueryExecution qexec = QueryExecutionFactory.create(query, model) ;
        ResultSet results = qexec.execSelect();
        while(results.hasNext()){
          QuerySolution rs = results.nextSolution();
          Resource dipl = rs.getResource("dipl");
          Resource niv = rs.getResource("niv");
          if(!niv.getLocalName().equals(("NamedIndividual"))){

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    List<String> res = new ArrayList<String>();
    
    Query query = QueryFactory.create(Req) ;
        QueryExecution qexec = QueryExecutionFactory.create(query, model) ;
        ResultSet results = qexec.execSelect();
        while(results.hasNext()){
          QuerySolution rs = results.nextSolution();
          Resource prof = rs.getResource("prof");
          if(!professeur.equals(prof.getLocalName())){
            res.add(prof.getLocalName());

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        String query = "SELECT * WHERE {?s ?p ?o} ";
        QueryExecution qe = QueryExecutionFactory.create(query, ds);
        try
        {
            ResultSet rs = qe.execSelect();
            ResultSetFormatter.out(rs);
        }
        finally
        {
            qe.close();

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            final QueryExecution qExec = QueryExecutionFactory.create(
                    expression, ds);
            ResultSet rs = null;
            try
            {
                rs = qExec.execSelect();
            }
            finally
            {
                // QueryExecution objects should be closed to free any system
                // resources

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                    mAddress, query);
            ResultSet rs = null;
            try
            {
                LOG.info("About to execute SPARQL query...");
                rs = qexec.execSelect();
                LOG.info("SPARQL query " + query + " executed");
            }
            finally
            {
                if (rs != null)

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            // classes
            logger.debug("Processing classes for related keywords");
            Query query = QueryFactory.getClassQuery(keyword);
            QueryExecution classQExec = QueryExecutionFactory.create(query, userOntology);
            LARQ.setDefaultIndex(classQExec.getContext(), index);
            ResultSet result = classQExec.execSelect();
            processClassResultSet(result, keyword, relatedKeywords);


            // individuals
            logger.debug("Processing individuals for related keywords");
            query = QueryFactory.getIndividualQuery(keyword);

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            // individuals
            logger.debug("Processing individuals for related keywords");
            query = QueryFactory.getIndividualQuery(keyword);
            QueryExecution individualQExec = QueryExecutionFactory.create(query, userOntology);
            LARQ.setDefaultIndex(individualQExec.getContext(), index);
            result = individualQExec.execSelect();
            processIndividualResultSet(result, keyword, relatedKeywords);


            // CMS Objects
            logger.debug("Processing CMS objects for related keywords");
            query = QueryFactory.getCMSObjectQuery(keyword);

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            // CMS Objects
            logger.debug("Processing CMS objects for related keywords");
            query = QueryFactory.getCMSObjectQuery(keyword);
            QueryExecution cmsObjectQueryExec = QueryExecutionFactory.create(query, userOntology);
            LARQ.setDefaultIndex(cmsObjectQueryExec.getContext(), index);
            result = cmsObjectQueryExec.execSelect();
            processCMSObjectResultSet(result, keyword, relatedKeywords);
            relatedKeywordsMap.put(RelatedKeyword.Source.ONTOLOGY.toString(), relatedKeywords);
        }
        return relatedKeywordsMap;
    }

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    Query query = QueryFactory
        .create("PREFIX : <src/test/resources/test.csv#> SELECT ?townName ?pop {?x :Town ?townName ; :Population ?pop ; :Predicate%20With%20Space 'PredicateWithSpace2' . FILTER(?pop > 500000)}");
    
    QueryExecution qexec = QueryExecutionFactory.create(query, csv);
    ResultSet results = qexec.execSelect();
    
    assertTrue(results.hasNext());
    QuerySolution soln = results.nextSolution();
    assertEquals( "Northville", soln.getLiteral("townName").getString());
    assertTrue( 654000 == soln.getLiteral("pop").getInt());

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    Query query = QueryFactory
        .create("PREFIX : <src/test/resources/HEFCE_organogram_senior_data_31032011.csv#> SELECT ?name ?unit {?x :Name ?name ; :Unit ?unit ; :Actual%20Pay%20Floor%20%28%A3%29 ?floor ; :Actual%20Pay%20Ceiling%20%28%A3%29 ?ceiling . FILTER(?floor > 100000 && ?ceiling <120000 )}");
    
    QueryExecution qexec = QueryExecutionFactory.create(query, csv);
    ResultSet results = qexec.execSelect();
    
    assertTrue(results.hasNext());
    QuerySolution soln = results.nextSolution();
    assertEquals( "David Sweeney", soln.getLiteral("name").getString());
    assertEquals( "Research, Innovation and Skills", soln.getLiteral("unit").getString());

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