Package io.trino.operator.aggregation.minmaxn

Class MinMaxNStateFactory.SingleMinMaxNState

java.lang.Object

io.trino.operator.aggregation.minmaxn.MinMaxNStateFactory.SingleMinMaxNState

All Implemented Interfaces:

MinMaxNState, AccumulatorState

Enclosing class:

MinMaxNStateFactory

public abstract static class MinMaxNStateFactory.SingleMinMaxNState
extends Object

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SingleMinMaxNState(MinMaxNStateFactory.SingleMinMaxNState state)
	SingleMinMaxNState(LongFunction<TypedHeap> heapFactory, Function<Block,TypedHeap> deserializer)

Method Summary

Modifier and Type	Method	Description
final void	add(Block block, 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(MinMaxNState other)	Merge with the specified state.
final void	serialize(BlockBuilder out)	Write this state to the specified block builder.
final void	writeAll(BlockBuilder out)	Writes all values to the supplied block builder as an array entry.

Methods inherited from class java.lang.Object

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

Constructor Details

SingleMinMaxNState

public SingleMinMaxNState(LongFunction<TypedHeap> heapFactory,
 Function<Block,TypedHeap> deserializer)

SingleMinMaxNState

protected SingleMinMaxNState(MinMaxNStateFactory.SingleMinMaxNState state)

Method Details

copy

public abstract AccumulatorState copy()

getEstimatedSize

public final long getEstimatedSize()

initialize

public final void initialize(long n)

Description copied from interface: MinMaxNState

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 block,
 int position)

Description copied from interface: MinMaxNState

Adds the value to this state.

merge

public final void merge(MinMaxNState other)

Description copied from interface: MinMaxNState

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.

writeAll

public final void writeAll(BlockBuilder out)

Description copied from interface: MinMaxNState

Writes all values to the supplied block builder as an array entry.

serialize

public final void serialize(BlockBuilder out)

Description copied from interface: MinMaxNState

Write this state to the specified block builder.

deserialize

public final void deserialize(Block rowBlock)

Description copied from interface: MinMaxNState

Read the state to the specified block builder.