Package lupos.engine.operators.tripleoperator

Examples of lupos.engine.operators.tripleoperator.TriplePattern.addSucceedingOperator()

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    pat1.setSucceedingOperator(new OperatorIDTuple(repLit, 0));

    repLit.setPrecedingOperator(pat1);
    repLit.setSucceedingOperator(new OperatorIDTuple(succ, -1));

    pat2.addSucceedingOperator(new OperatorIDTuple(succ, -1));

    succ.setPrecedingOperator(repLit);
    succ.addPrecedingOperator(pat2);

    subGraphMap = new HashMap<BasicOperator, String>();
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    // Delete empty ReplaceVar
    if (replaceVar.getSubstitutionsVariableLeft().size() == 0) {
      final OperatorIDTuple succ = replaceVar.getSucceedingOperators()
          .get(0);
      pat.addSucceedingOperator(succ);
      pat.removeSucceedingOperator(replaceVar);
      succ.getOperator().removePrecedingOperator(replaceVar);
      succ.getOperator().addPrecedingOperator(pat);

      rootOperator.deleteParents();
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      }
      return join;
    } else if(triplePatterns.size()==1){
      final TriplePattern tp = triplePatterns.iterator().next();
      if(opID!=null) {
        tp.addSucceedingOperator(opID);
      }
      this.currentPatternMatcher.add(tp);
      return tp;
    } else {
      throw new Error("There should be at least one Triple Pattern given!");
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                  final BasicIndexScan newIndex = ((Root)rootQuery).newIndexScan(new OperatorIDTuple(join, 1), tpList, bi.getGraphConstraint());
                  newIndex.recomputeVariables();
                  join.addPrecedingOperator(newIndex);
                  rootQuery.addSucceedingOperator(newIndex);
                  newIndex.addPrecedingOperator(rootQuery);
                  newTP.addSucceedingOperator(new OperatorIDTuple(join, 1));
                  join.addPrecedingOperator(newTP);

                  toBeConnectedTo.add(newIndex);
                }
              }
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