Examples of lupos.engine.operators.singleinput.sort.Sort

Package lupos.engine.operators.singleinput.sort

Examples of lupos.engine.operators.singleinput.sort.Sort

lupos.engine.operators.singleinput.sort.Sort
This is almost an abstract class, but as it needs to be instantiated in operatorPipe it is not. Nevertheless it should not be instantiated, as no useful results will be created. DO ONLY USE EXTENDING CLASSES

  public void insertFederatedQueryOperator(final ASTService node, final OperatorConnection connection){
    SeveralSucceedingOperators sso = new SeveralSucceedingOperators();
    BasicOperator federatedQuery = this.getFederatedQuery(node);
    Node child0 = node.jjtGetChild(0);
    if(child0 instanceof ASTVar){
      Sort sort = new Sort();
      LinkedList<Variable> listOfVars = new LinkedList<Variable>();
      listOfVars.add(new Variable(((ASTVar)child0).getName()));
      ComparatorVariables comparator = new ComparatorVariables(listOfVars);
      sort.setComparator(comparator);
      Group group = new Group(comparator);
      sort.addSucceedingOperator(group);
      group.addSucceedingOperator(federatedQuery);
      sso.addSucceedingOperator(sort);
    } else {
      sso.addSucceedingOperator(federatedQuery);
    }

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    this.visitQueryNode(node, connection, null);
  }


  @Override
  public void visit(final ASTOrderConditions node, final OperatorConnection connection) {
    connection.connectAndSetAsNewOperatorConnection(new Sort(node));
  }

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        // TODO This is according to the SPARQL 1.1 specification, but often the restrictions are nonsense...
        // this.groupNegativeSyntaxTest(childi, node);
        final Group g = new Group(childi);
        connection.connectAndSetAsNewOperatorConnection(g, 0);


        final Sort sort = new Sort(childi);
        connection.connectAndSetAsNewOperatorConnection(sort, 0);
      }
    }


    // Dealing with the FROM (NAMED) clauses

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          connection.setOperatorConnection(opt, 0);
        } else if (n instanceof ASTMinus) {
          Minus minus = null;
          if (useSortedMinus) {
            // insert sort operator to preprocess for SortedMinus
            final Sort sortLeft = new Sort();
            final Sort sortRight = new Sort();
            minus = new SortedMinus(sortLeft, sortRight);


            connection.connectAndSetAsNewOperatorConnection(minus, 1);
            connection.connectAndSetAsNewOperatorConnection(sortRight);
            n.accept(this, connection, graphConstraint);

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Related Classes of lupos.engine.operators.singleinput.sort.Sort

lupos.engine.operators.singleinput.sort.comparator.ComparatorAST

lupos.sparql1_1.operatorgraph.ServiceGeneratorToJoinWithOriginal

lupos.sparql1_1.operatorgraph.SPARQLCoreParserVisitorImplementation

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