Examples of org.apache.clerezza.rdf.core.sparql.query.impl.SimpleSelectQuery

                "OPTIONAL { ?x <http://example.org/ns#price> ?price . } " +
                "}";


        Variable title = new Variable("title");
        Variable price = new Variable("price");
        SimpleSelectQuery selectQuery = new SimpleSelectQuery();
        selectQuery.addSelection(title);
        selectQuery.addSelection(price);


        Variable x = new Variable("x");
        Set<TriplePattern> triplePatterns = new HashSet<TriplePattern>();
        triplePatterns.add(new SimpleTriplePattern(x,
                new UriRef("http://purl.org/dc/elements/1.1/title"), title));


        SimpleBasicGraphPattern bgp = new SimpleBasicGraphPattern(triplePatterns);


        Set<TriplePattern> triplePatternsOpt = new HashSet<TriplePattern>();
        triplePatternsOpt.add(new SimpleTriplePattern(x,
                new UriRef("http://example.org/ns#price"), price));


        SimpleBasicGraphPattern bgpOpt =
                new SimpleBasicGraphPattern(triplePatternsOpt);


        SimpleGroupGraphPattern ggpOpt = new SimpleGroupGraphPattern();
        ggpOpt.addGraphPattern(bgpOpt);


        SimpleOptionalGraphPattern ogp = new SimpleOptionalGraphPattern(bgp, ggpOpt);


        SimpleGroupGraphPattern queryPattern = new SimpleGroupGraphPattern();
        queryPattern.addGraphPattern(ogp);
        selectQuery.setQueryPattern(queryPattern);


        Assert.assertTrue(selectQuery.toString()
                .replaceAll("( |\n)+", " ").trim().equals(queryString));
    }

        final String queryString = "SELECT ?p WHERE { " +
                "<http://localhost/testitem> ?p ?x . " +
                "FILTER REGEX(?x,\".*uni.*\"^^<http://www.w3.org/2001/XMLSchema#string>) }";


        Variable p = new Variable("p");
        SimpleSelectQuery selectQuery = new SimpleSelectQuery();
        selectQuery.addSelection(p);


        Variable x = new Variable("x");
        Set<TriplePattern> triplePatterns = new HashSet<TriplePattern>();
        triplePatterns.add(new SimpleTriplePattern(
                new UriRef("http://localhost/testitem"), p, x));


        SimpleBasicGraphPattern bgp = new SimpleBasicGraphPattern(triplePatterns);
        SimpleGroupGraphPattern queryPattern = new SimpleGroupGraphPattern();
        queryPattern.addGraphPattern(bgp);


        List<Expression> arguments = new ArrayList<Expression>();
        arguments.add(x);
        arguments.add(new LiteralExpression(LiteralFactory.getInstance().
                createTypedLiteral(".*uni.*")));
        BuiltInCall constraint = new BuiltInCall("REGEX", arguments);
        queryPattern.addConstraint(constraint);
        selectQuery.setQueryPattern(queryPattern);
        Assert.assertTrue(selectQuery.toString()
                .replaceAll("( |\n)+", " ").trim().equals(queryString));
    }

Examples of org.apache.clerezza.rdf.core.sparql.query.impl.SimpleSelectQuery

Related Classes of org.apache.clerezza.rdf.core.sparql.query.impl.SimpleSelectQuery