com.facebook.presto.operator

Interface OperatorFactory

All Known Subinterfaces:

JoinOperatorFactory, SourceOperatorFactory

All Known Implementing Classes:

AggregationOperator.AggregationOperatorFactory, AssignUniqueIdOperator.AssignUniqueIdOperatorFactory, DeleteOperator.DeleteOperatorFactory, DistinctLimitOperator.DistinctLimitOperatorFactory, EnforceSingleRowOperator.EnforceSingleRowOperatorFactory, ExchangeOperator.ExchangeOperatorFactory, ExplainAnalyzeOperator.ExplainAnalyzeOperatorFactory, FilterAndProjectOperator.FilterAndProjectOperatorFactory, GroupIdOperator.GroupIdOperatorFactory, HashAggregationOperator.HashAggregationOperatorFactory, HashBuilderOperator.HashBuilderOperatorFactory, HashPartitionMaskOperator.HashPartitionMaskOperatorFactory, HashSemiJoinOperator.HashSemiJoinOperatorFactory, IndexSourceOperator.IndexSourceOperatorFactory, LimitOperator.LimitOperatorFactory, LocalExchangeSinkOperator.LocalExchangeSinkOperatorFactory, LocalExchangeSourceOperator.LocalExchangeSourceOperatorFactory, LookupJoinOperatorFactory, LookupOuterOperator.LookupOuterOperatorFactory, MarkDistinctOperator.MarkDistinctOperatorFactory, MetadataDeleteOperator.MetadataDeleteOperatorFactory, NestedLoopBuildOperator.NestedLoopBuildOperatorFactory, NestedLoopJoinOperator.NestedLoopJoinOperatorFactory, NullOutputOperator.NullOutputOperatorFactory, OrderByOperator.OrderByOperatorFactory, PageBufferOperator.PageBufferOperatorFactory, PageConsumerOperator.PageConsumerOperatorFactory, PagesIndexBuilderOperator.PagesIndexBuilderOperatorFactory, PartitionedOutputOperator.PartitionedOutputOperatorFactory, RowNumberOperator.RowNumberOperatorFactory, ScanFilterAndProjectOperator.ScanFilterAndProjectOperatorFactory, SetBuilderOperator.SetBuilderOperatorFactory, TableFinishOperator.TableFinishOperatorFactory, TableScanOperator.TableScanOperatorFactory, TableWriterOperator.TableWriterOperatorFactory, TaskOutputOperator.TaskOutputOperatorFactory, TopNOperator.TopNOperatorFactory, TopNRowNumberOperator.TopNRowNumberOperatorFactory, UnnestOperator.UnnestOperatorFactory, ValuesOperator.ValuesOperatorFactory, WindowOperator.WindowOperatorFactory

public interface OperatorFactory

Method Summary

Modifier and Type	Method and Description
Operator	createOperator(DriverContext driverContext)
OperatorFactory	duplicate()
List<Type>	getTypes()
void	noMoreOperators() Declare that createOperator will not be called any more and release any resources associated with this factory.

Method Detail

getTypes

List<Type> getTypes()

createOperator

Operator createOperator(DriverContext driverContext)

noMoreOperators

void noMoreOperators()

Declare that createOperator will not be called any more and release any resources associated with this factory.

This method will be called only once. Implementation doesn't need to worry about duplicate invocations.

duplicate

OperatorFactory duplicate()