Package lupos.engine.operators.multiinput.optional

Examples of lupos.engine.operators.multiinput.optional.MergeWithoutSortingOptional.cloneFrom()

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                for (final BasicOperator bo : llbo) {
                  operatorMustReceiveSortedData(root, bo,
                      basicOperator.getIntersectionVariables());
                }
                final BasicOperator newOperator = new MergeWithoutSortingOptional();
                newOperator.cloneFrom(basicOperator);
                basicOperator.replaceWith(newOperator);
                return newOperator;
              }
            } else if (basicOperator instanceof FastSort) {
              if (basicOperator.getPrecedingOperators().size() == 1
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            newOperator = newClass.newInstance();
          } catch (final Exception ex) {
            ex.printStackTrace();
            System.err.println(ex);
          }
          newOperator.cloneFrom(basicOperator);
          basicOperator.replaceWith(newOperator);
          if (basicOperator.getClass() == Join.class
              && newOperator instanceof MergeJoinWithoutSortingSeveralIterations) {
            // Insert necessary sort operators here...
            final LinkedList<BasicOperator> llbo = new LinkedList<BasicOperator>();
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            newOperator = newClass.newInstance();
          } catch (final Exception ex) {
            ex.printStackTrace();
            System.err.println(ex);
          }
          newOperator.cloneFrom(basicOperator);
          basicOperator.replaceWith(newOperator);
        }
        return newOperator;
      }
    };
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      return true;
    } else if (basicOperator.getClass() == Optional.class) {
      if(basicOperator.getIntersectionVariables().containsAll(sortCriterium)) {
        if(basicOperator.getPrecedingOperators().size() == 2) {
          final BasicOperator newOperator = new MergeWithoutSortingOptional();
          newOperator.cloneFrom(basicOperator);
          basicOperator.replaceWith(newOperator);
          return   operatorMustReceiveSortedData(root, basicOperator.getPrecedingOperators().get(0), sortCriterium) &&
              operatorMustReceiveSortedData(root, basicOperator.getPrecedingOperators().get(1), sortCriterium);
        }
      }
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