Package io.trino.operator.aggregation.minmaxbyn

Class MinMaxByNStateFactory.SingleMinMaxByNState

java.lang.Object

io.trino.operator.aggregation.minmaxbyn.MinMaxByNStateFactory.SingleMinMaxByNState

All Implemented Interfaces:

MinMaxByNState, AccumulatorState

Enclosing class:

MinMaxByNStateFactory

public abstract static class MinMaxByNStateFactory.SingleMinMaxByNState
extends Object

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SingleMinMaxByNState(MinMaxByNStateFactory.SingleMinMaxByNState state)
	SingleMinMaxByNState(LongFunction<TypedKeyValueHeap> heapFactory, Function<Block,TypedKeyValueHeap> deserializer)

Method Summary

Modifier and Type	Method	Description
final void	add(Block keyBlock, Block valueBlock, int position)	Adds the value to this state.
abstract AccumulatorState	copy()
final void	deserialize(Block rowBlock)	Read the state to the specified block builder.
final long	getEstimatedSize()
final void	initialize(long n)	Initialize the state if not already initialized.
final void	merge(MinMaxByNState other)	Merge with the specified state.
final void	popAll(BlockBuilder out)	Writes all values to the supplied block builder as an array entry.
final void	serialize(BlockBuilder out)	Write this state to the specified block builder.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SingleMinMaxByNState

public SingleMinMaxByNState(LongFunction<TypedKeyValueHeap> heapFactory,
 Function<Block,TypedKeyValueHeap> deserializer)

SingleMinMaxByNState

protected SingleMinMaxByNState(MinMaxByNStateFactory.SingleMinMaxByNState state)

Method Details

copy

public abstract AccumulatorState copy()

getEstimatedSize

public final long getEstimatedSize()

initialize

public final void initialize(long n)

Description copied from interface: MinMaxByNState

Initialize the state if not already initialized. Only the first call is processed and all subsequent calls are ignored.

add

public final void add(Block keyBlock,
 Block valueBlock,
 int position)

Description copied from interface: MinMaxByNState

Adds the value to this state.

merge

public final void merge(MinMaxByNState other)

Description copied from interface: MinMaxByNState

Merge with the specified state. The supplied state should not be used after this method is called, because the internal details of the state may be reused in this state.

popAll

public final void popAll(BlockBuilder out)

Description copied from interface: MinMaxByNState

Writes all values to the supplied block builder as an array entry. After this method is called, the current state will be empty.

serialize

public final void serialize(BlockBuilder out)

Description copied from interface: MinMaxByNState

Write this state to the specified block builder.

deserialize

public final void deserialize(Block rowBlock)

Description copied from interface: MinMaxByNState

Read the state to the specified block builder.