Examples of org.openrdf.query.algebra.LeftJoin

org.openrdf.query.algebra.LeftJoin
3.org/TR/rdf-sparql-query/#algLeftJoin">SPARQL Query Language for RDF. @author Arjohn Kampman

      }


      TupleExpr expandedPattern = null;


      if (joinOfAttributePatterns.getNumberOfArguments() == 1) {
        expandedPattern = new LeftJoin(statementPattern, joinOfAttributePatterns.getArg(0));
      }
      else {
        expandedPattern = new LeftJoin(statementPattern, joinOfAttributePatterns);
      }


      // build an Or-ed set of filter conditions on the status and team.
      Or filterConditions = new Or();

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    else {
      result = new Join(requiredTEs);
    }


    for (TupleExpr optTE : optionalTEs) {
      result = new LeftJoin(result, optTE);
    }


    for (ValueExpr constraint : constraints) {
      result = new Filter(result, constraint);
    }

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      result = new Join(requiredTEs);
    }


    for (OptionalTupleExpr optTE : optionalTEs) {
      if (optTE.hasConstraint()) {
        result = new LeftJoin(result, optTE.getTupleExpr(), optTE.getConstraint());
      }
      else {
        result = new LeftJoin(result, optTE.getTupleExpr());
      }
    }


    for (ValueExpr constraint : constraints) {
      result = new Filter(result, constraint);

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    List<ValueExpr> constraints = graphPattern.removeAllConstraints();


    TupleExpr leftArg = parentGP.buildTupleExpr();
    TupleExpr rightArg = graphPattern.buildTupleExpr();


    LeftJoin leftJoin;


    if (constraints.isEmpty()) {
      leftJoin = new LeftJoin(leftArg, rightArg);
    }
    else {
      ValueExpr constraint = new And(constraints);


      leftJoin = new LeftJoin(leftArg, rightArg, constraint);
    }


    graphPattern = parentGP;


    graphPattern.clear();

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      }
    }


    for (OptionalTupleExpr optTE : optionalTEs) {
      if (optTE.hasConstraint()) {
        result = new LeftJoin(result, optTE.getTupleExpr(), optTE.getConstraint());
      }
      else {
        result = new LeftJoin(result, optTE.getTupleExpr());
      }
    }


    for (ValueExpr constraint : constraints) {
      result = new Filter(result, constraint);

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        result = new Join(result, requiredTEs.get(i));
      }
    }


    for (TupleExpr optTE : optionalTEs) {
      result = new LeftJoin(result, optTE);
    }


    for (ValueExpr constraint : constraints) {
      result = new Filter(result, constraint);
    }

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    List<ValueExpr> constraints = graphPattern.removeAllConstraints();


    TupleExpr leftArg = parentGP.buildTupleExpr();
    TupleExpr rightArg = graphPattern.buildTupleExpr();


    LeftJoin leftJoin;


    if (constraints.isEmpty()) {
      leftJoin = new LeftJoin(leftArg, rightArg);
    }
    else {
      ValueExpr constraint = constraints.get(0);
      for (int i = 1; i < constraints.size(); i++) {
        constraint = new And(constraint, constraints.get(i));
      }


      leftJoin = new LeftJoin(leftArg, rightArg, constraint);
    }


    graphPattern = parentGP;


    graphPattern.clear();

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Related Classes of org.openrdf.query.algebra.LeftJoin

org.openrdf.query.parser.serql.GraphPattern

org.openrdf.query.parser.sparql.GraphPattern

org.openrdf.query.parser.sparql.TupleExprBuilder

org.openrdf.sail.accesscontrol.AccessControlConnection$AccessControlQueryExpander

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