Package lupos.sparql1_1

Examples of lupos.sparql1_1.Node.accept()

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      for (int i = 0; i < node.jjtGetNumChildren(); i++) {
        final Node n = node.jjtGetChild(i);
        if (n instanceof ASTOptionalConstraint) {
          final Optional opt = new Optional();
          connection.connectAndSetAsNewOperatorConnection(opt, 1);
          n.accept(this, connection, graphConstraint);
          connection.setOperatorConnection(opt, 0);
        } else if (n instanceof ASTMinus) {
          Minus minus = null;
          if (useSortedMinus) {
            // insert sort operator to preprocess for SortedMinus
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            final Sort sortRight = new Sort();
            minus = new SortedMinus(sortLeft, sortRight);

            connection.connectAndSetAsNewOperatorConnection(minus, 1);
            connection.connectAndSetAsNewOperatorConnection(sortRight);
            n.accept(this, connection, graphConstraint);
            connection.setOperatorConnection(minus, 0);
            connection.connectAndSetAsNewOperatorConnection(sortLeft);
          } else {
            minus = new Minus();
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            connection.connectAndSetAsNewOperatorConnection(sortLeft);
          } else {
            minus = new Minus();

            connection.connectAndSetAsNewOperatorConnection(minus, 1);
            n.accept(this, connection, graphConstraint);
            connection.setOperatorConnection(minus, 0);
          }
        }
      }
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