Examples of org.openrdf.repository.RepositoryConnection.prepareTupleQuery()

Class org.openrdf.repository.RepositoryConnection

Examples of org.openrdf.repository.RepositoryConnection.prepareTupleQuery()

org.openrdf.repository.RepositoryConnection.prepareTupleQuery()
Prepares a query that produces sets of value tuples. In case the query contains relative URIs that need to be resolved against an external base URI, one should use {@link #prepareTupleQuery(QueryLanguage,String,String)} instead. @param ql The query language in which the query is formulated. @param query The query string. @throws IllegalArgumentException If the supplied query is not a tuple query. @throws MalformedQueryException If the supplied query is malformed. @throws UnsupportedQueryLanguageException If the supplied query language is not supported.


    String query = "SELECT DISTINCT manifestFile " + "FROM {x} rdf:first {manifestFile} "
        + "USING NAMESPACE " + "  mf = <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#>, "
        + "  qt = <http://www.w3.org/2001/sw/DataAccess/tests/test-query#>";


    TupleQueryResult manifestResults = con.prepareTupleQuery(QueryLanguage.SERQL, query, MANIFEST_FILE).evaluate();


    while (manifestResults.hasNext()) {
      BindingSet bindingSet = manifestResults.next();
      String manifestFile = bindingSet.getValue("manifestFile").toString();
      suite.addTest(SPARQLQueryTest.suite(manifestFile, factory));

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  // implements edu.lehigh.swat.bench.ubt.api.Repository.issueQuery(...)
  public QueryResult issueQuery(Query query) {


    try {
      RepositoryConnection con = repository.getConnection();
      TupleQueryResult queryResult = con.prepareTupleQuery(QueryLanguage.SERQL, query.getString()).evaluate();
      con.close();


      return new LUBMQueryResult(queryResult);
    }
    catch (MalformedQueryException e) {

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    Vector<Value> classes = new Vector<Value>();
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT DISTINCT x FROM {x} rdf:type {y} WHERE isResource(y) AND " +
          "y = <" + OWL.OBJECTPROPERTY + ">";
            TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
            TupleQueryResult results = q.evaluate();
            while (results.hasNext()) {
                BindingSet s = results.next();
        Value result = s.getValue("x");
        classes.add(result);

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    Vector<Value> classes = new Vector<Value>();
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT DISTINCT x FROM {x} rdf:type {y} WHERE isResource(y) AND " +
          "y = <" + OWL.DATATYPEPROPERTY + ">";
            TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
            TupleQueryResult results = q.evaluate();
            while (results.hasNext()) {
                BindingSet s = results.next();
        Value result = s.getValue("x");
        classes.add(result);

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    Vector<Value> classes = new Vector<Value>();
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT DISTINCT x FROM {x} rdf:type {y} WHERE isResource(y) AND " +
          "y = <" + OWL.ANNOTATIONPROPERTY + ">";
            TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
            TupleQueryResult results = q.evaluate();
            while (results.hasNext()) {
                BindingSet s = results.next();
        Value result = s.getValue("x");
        classes.add(result);

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  private Iterator<Value> listClasses(Repository repo) {
    Vector<Value> classes = new Vector<Value>();
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT DISTINCT x FROM {x} p {y}";
            TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
            TupleQueryResult results = q.evaluate();
            while (results.hasNext()) {
                BindingSet s = results.next();
        Value result = s.getValue("x");
        classes.add(result);

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    Vector<Value> objects = new Vector<Value>();
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT y FROM {<" + ((URI) subject).toString() + ">} <"
              + property.toString() + "> {y}";
            TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
            TupleQueryResult results = q.evaluate();
            while (results.hasNext()) {
                BindingSet s = results.next();
        Value result = s.getValue("x");
        objects.add(result);

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    boolean answer = false;
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT * FROM {<" + ((URI) subject).toString() + ">} <"
              + property.toString() + "> {y}";
            TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
            TupleQueryResult results = q.evaluate();
      answer = results.hasNext();
      results.close();
      conn.close();
    } catch (Exception e) {

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    Statement answer = null;
    try {
      RepositoryConnection conn = m_source.getConnection();
      String query = "SELECT y FROM {<" + ((URI) subject).toString() + ">} <"
              + property.toString() + "> {y}";
      TupleQuery q = conn.prepareTupleQuery(QueryLanguage.SERQL, query);
      TupleQueryResult results = q.evaluate();
      if (results.hasNext()) {
        Value object = results.next().getValue("y");
        answer = new StatementImpl(subject, property, object);
      }

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    Vector<Resource> resources = new Vector<Resource>();
    RepositoryConnection conn;
    try {
      conn = in.getConnection();


      TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, this._SPARQL);
      TupleQueryResult result = tupleQuery.evaluate();


      String firstBindingName = result.getBindingNames().get(0);


      while (result.hasNext()) {

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