Examples of lupos.datastructures.queryresult.ParallelIteratorMultipleQueryResults

Package lupos.datastructures.queryresult

Examples of lupos.datastructures.queryresult.ParallelIteratorMultipleQueryResults

lupos.datastructures.queryresult.ParallelIteratorMultipleQueryResults
This class collects QueryResults. Afterwards it can be used to iterate through all the collected QueryResults. It can be used to instantiate an IteratorQueryResult (and therefore serve as basis for a new QueryResult integrating all collected QueryResult, but iterating through them only once via oneTimeIterator())

          result.add(leftItem);
        }
      }


      // if the operator is in a cycle: it is no problem if the left operand gets new bindings...
      this.operands[0] = new ParallelIteratorMultipleQueryResults();


      for (final OperatorIDTuple opId : this.succeedingOperators) {
        opId.processAll(result);
      }
    } else if (!this.operands[0].isEmpty()) { // happens when the group constraint which follows the minus is empty
      final QueryResult result = this.operands[0].getQueryResult();


      // if the operator is in a cycle: it is no problem if the left operand gets new bindings...
      this.operands[0] = new ParallelIteratorMultipleQueryResults();


      for (final OperatorIDTuple opId : this.succeedingOperators) {
        opId.processAll(result);
      }
    }

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        }
      }
    }
    this.operands[0].release();
    this.operands[1].release();
    this.operands[0] = new ParallelIteratorMultipleQueryResults();
    this.operands[1] = new ParallelIteratorMultipleQueryResults();
    return msg;
  }

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        }
      }
    }
    this.operands[0].release();
    this.operands[1].release();
    this.operands[0] = new ParallelIteratorMultipleQueryResults();
    this.operands[1] = new ParallelIteratorMultipleQueryResults();
    return msg;
  }

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  public Message preProcessMessage(final EndOfEvaluationMessage msg) {
    QueryResult result = checkIfAlreadySorted(this._bindings.getQueryResult());
    for (final OperatorIDTuple opId : this.succeedingOperators) {
      opId.processAll(result);
    }
    this._bindings = new ParallelIteratorMultipleQueryResults();
    return msg;
  }

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  }


  @Override
  public void deleteAll(final int operandID) {
    this._bindings.release();
    this._bindings = new ParallelIteratorMultipleQueryResults();  
  }

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    QueryResult result = checkIfAlreadySorted(this._bindings.getQueryResult());
    for (final OperatorIDTuple opId : this.succeedingOperators) {
      final QueryResultDebug qrDebug = new QueryResultDebug(result,debugstep, this, opId.getOperator(), true);
      ((Operator) opId.getOperator()).processAllDebug(qrDebug, opId.getId(), debugstep);
    }
    this._bindings = new ParallelIteratorMultipleQueryResults();
    return msg;
  }

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        }
      }
    }
    this.operands[0].release();
    this.operands[1].release();
    this.operands[0] = new ParallelIteratorMultipleQueryResults();
    this.operands[1] = new ParallelIteratorMultipleQueryResults();
    return msg;
  }

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  }


  @Override
  public void deleteAll(final int operandID) {
    this.operands[operandID].release();
    this.operands[operandID]= new ParallelIteratorMultipleQueryResults();
  }

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        }
      }
    }
    this.operands[0].release();
    this.operands[1].release();
    this.operands[0]= new ParallelIteratorMultipleQueryResults();
    this.operands[1]= new ParallelIteratorMultipleQueryResults();
    return msg;
  }

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Related Classes of lupos.datastructures.queryresult.ParallelIteratorMultipleQueryResults

lupos.engine.operators.multiinput.join.HashJoin

lupos.engine.operators.multiinput.join.parallel.ParallelJoin

lupos.engine.operators.multiinput.minus.Minus

lupos.engine.operators.singleinput.sort.QuickSort

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