Package lupos.distributed.query.operator.withouthistogramsubmission

Examples of lupos.distributed.query.operator.withouthistogramsubmission.QueryClientIndexScan

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  protected BasicIndexScan getIndex(final LeafNodePlan plan,
      final BasicIndexScan indexScan,
      final Collection<Variable> sortCriterium,
      final Map<Variable, Literal> minima,
      final Map<Variable, Literal> maxima) {
    final BasicIndexScan index1 = new QueryClientIndexScan((OperatorIDTuple) null, plan.getTriplePatterns(), indexScan.getGraphConstraint(), indexScan.getRoot());
    index1.setIntersectionVariables(plan.getVariables());
    index1.setUnionVariables(plan.getVariables());
    return index1;
  }
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            rootNodeOfSubGraph, key, subgraphExecutor);
       
        /*
         * store new basic index scan instead of using it n-times, because same object used
         */
        BasicIndexScan indexScan = new QueryClientIndexScan(_indexScan.getRoot(),_indexScan.getTriplePattern());
       
        /*
         * store variables
         */
        final HashSet<Variable> variables = new HashSet<Variable>(
            _indexScan.getIntersectionVariables());
        container.setUnionVariables(variables);
        container.setIntersectionVariables(variables);

       
        // generate new connections...
        final Filter filter = this.getFilterFromIndexScan(indexScan);
        if (filter != null) {
          if (indexScan.getUnionVariables().containsAll(
              filter.getUsedVariables())) {
            Filter newFilter;
            try {
              newFilter = new Filter(filter.toString().substring(
                  0, filter.toString().length() - 2));
              indexScan
                  .setSucceedingOperator(new OperatorIDTuple(
                      newFilter, 0));
              newFilter
                  .setSucceedingOperator(new OperatorIDTuple(
                      new Result(), 0));
            } catch (final ParseException e) {
              e.printStackTrace();
            }

          } else {
            indexScan.setSucceedingOperator(new OperatorIDTuple(
                new Result(), 0));
          }
        } else {
          indexScan.setSucceedingOperator(new OperatorIDTuple(
              new Result(), 0));
        }

        // indexScan.setSucceedingOperator(new OperatorIDTuple(new
        // Result(),
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    return new QueryClientRoot(dataset);
  }

  @Override
  public BasicIndexScan createIndexScan(final Root root, final Collection<TriplePattern> triplePatterns) {
    return new QueryClientIndexScan(root, triplePatterns);
  }
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Related Classes of lupos.distributed.query.operator.withouthistogramsubmission.QueryClientIndexScan

  • lupos.datastructures.bindings.Bindings
  • lupos.datastructures.items.literal.Literal
  • lupos.datastructures.queryresult.IteratorQueryResult
  • lupos.datastructures.queryresult.QueryResult
  • lupos.distributed.operator.format.operatorcreator.QueryClientOperatorCreator
  • lupos.distributed.query.operator.QueryClientIndices
  • lupos.engine.operators.tripleoperator.TriplePattern
  • lupos.optimizations.logical.rules.generated.AddSubGraphContainerRule
  • lupos.optimizations.physical.joinorder.costbasedoptimizer.operatorgraphgenerator.QueryClientOperatorGraphGenerator
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