Package com.hp.hpl.jena.query

Examples of com.hp.hpl.jena.query.ResultSet

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            Query query = QueryFactory.create(queryStr) ;
            QueryExecution qexec = null;
            try {
                qexec = QueryExecutionFactory.create(query, model) ;
               
                ResultSet resultsSet = qexec.execSelect();               
                for ( ; resultsSet.hasNext() ; )
                {
                    QuerySolution soln = resultsSet.nextSolution() ;                   
                    results.add(soln);                 
                }
            } finally {
                qexec.close() ;
            }
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        QueryExecution qexec = QueryExecutionFactory.create(query, model) ;
       
        try {
            // Assumption: it's a SELECT query.
            ResultSet rs = qexec.execSelect() ;
           
            // The order of results is undefined.
            System.out.println("Titles: ") ;
            for ( ; rs.hasNext() ; )
            {
                QuerySolution rb = rs.nextSolution() ;
               
                // Get title - variable names do not include the '?' (or '$')
                RDFNode x = rb.get("title") ;
               
                // Check the type of the result value
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        String qs = prologue+"SELECT * { ?x ext:labelSearch 'EF' }" ;
        Query query = QueryFactory.create(qs) ;
        Model model = make() ;
        QueryExecution qExec = QueryExecutionFactory.create(query, model) ;
        try {
            ResultSet rs = qExec.execSelect() ;
            ResultSetFormatter.out(rs) ;
        } finally { qExec.close() ; }
       
        // Or register it.
        PropertyFunctionRegistry.get().put("http://example/f#search", labelSearch.class) ;
        prologue = "PREFIX ext: <http://example/f#>\n" ;
        qs = prologue+"SELECT * { ?x ext:search 'EF' }" ;
        query = QueryFactory.create(qs) ;
        qExec = QueryExecutionFactory.create(query, model) ;
        try {
            ResultSet rs = qExec.execSelect() ;
            ResultSetFormatter.out(rs) ;
        } finally { qExec.close() ; }
    }
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            // -------- Or make ResultSet from it (but not both - reading an
            //          iterator consumes the current solution)
            List<String> varNames = new ArrayList<String>() ;
            varNames.add("x") ;
            varNames.add("z") ;
            ResultSet rs = new ResultSetStream(varNames, m, qIter);
            ResultSetFormatter.out(rs) ;
            qIter.close() ;
        }
        System.exit(0) ;
    }
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        // See http://incubator.apache.org/jena/documentation/query/app_api.html
       
        Query query = QueryFactory.create(sparqlQueryString) ;
        QueryExecution qexec = QueryExecutionFactory.create(query, dataset) ;
        try {
          ResultSet results = qexec.execSelect() ;
          for ( ; results.hasNext() ; )
          {
              QuerySolution soln = results.nextSolution() ;
              int count = soln.getLiteral("count").getInt() ;
              System.out.println("count = "+count) ;
          }
        } finally { qexec.close() ; }
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        QueryExecution qexec = QueryExecutionFactory.create(query, model) ;

        try {
            // Assumption: it's a SELECT query.
            ResultSet rs = qexec.execSelect() ;
           
            // The order of results is undefined.
            System.out.println("Titles: ") ;
            for ( ; rs.hasNext() ; )
            {
                QuerySolution rb = rs.nextSolution() ;
               
                // Get title - variable names do not include the '?' (or '$')
                RDFNode x = rb.get("title") ;
               
                // Check the type of the result value
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        System.out.println("Titles: ") ;
       
        try {
            // Assumption: it's a SELECT query.
            ResultSet rs = qexec.execSelect() ;
           
            // The order of results is undefined.
            for ( ; rs.hasNext() ; )
            {
                QuerySolution rb = rs.nextSolution() ;
               
                // Get title - variable names do not include the '?' (or '$')
                RDFNode x = rb.get("title") ;
               
                // Check the type of the result value
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            vars = Var.varNames(((OpProject)op).getVars()) ;
        else
            // The variables defined in patterns (not Filters, nor NOT EXISTS, nor ORDER BY)
            vars = Var.varNames(OpVars.visibleVars(op)) ;

        ResultSet results = ResultSetFactory.create(qIter, vars) ;
        outputResultSet(results, null, outputFormat) ;
    }
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    private static void doSelectQuery(Query query, QueryExecution qe, ResultsFormat outputFormat)
    {
        if ( outputFormat == null || outputFormat == ResultsFormat.FMT_UNKNOWN )
            outputFormat = ResultsFormat.FMT_TEXT ;
        ResultSet results = qe.execSelect() ;
        outputResultSet(results, query, outputFormat) ;
    }
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    /** Execute, expecting the result to be one row, one column.  Return that one RDFNode or throw an exception */
    public static RDFNode getExactlyOne(QueryExecution qExec, String varname)
    {
        try {
            ResultSet rs = qExec.execSelect() ;
           
            if ( ! rs.hasNext() )
                throw new ARQException("Not found: var ?"+varname) ;

            QuerySolution qs = rs.nextSolution() ;
            RDFNode r = qs.get(varname) ;
            if ( rs.hasNext() )
                throw new ARQException("More than one: var ?"+varname) ;
            return r ;
        } finally { qExec.close() ; }
    }
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Related Classes of com.hp.hpl.jena.query.ResultSet

  • arq.examples.AlgebraExec
  • arq.examples.Ex1
  • arq.examples.ExProg1
  • arq.examples.ExProg2
  • arq.examples.propertyfunction.labelSearch
  • at.tuwien.minireef.MiniREEF
  • com.clarkparsia.pellet.sparqldl.jena.SparqlDLExecution
  • com.clarkparsia.pellet.test.query.TestMiscSPARQL
  • com.clarkparsia.pellet.test.query.TestSingleSPARQLDLQueries
  • com.data2semantics.yasgui.server.fetchers.AutocompletionFetcher
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