Package io.trino.spi.connector

Interface LocalProperty<E>

All Known Implementing Classes:

ConstantProperty, GroupingProperty, SortingProperty

public sealed interface LocalProperty<E>
permits GroupingProperty<E>, SortingProperty<E>, ConstantProperty<E>

Method Summary

Modifier and Type	Method	Description
default LocalProperty<E>	constrain(Set<E> columns)	Return a new instance with the give (reduced) set of columns
Set<E>	getColumns()
boolean	isOrderSensitive()	Returns true if reordering breaks this LocalProperty
boolean	isSimplifiedBy(LocalProperty<E> actual)	Return true if the actual LocalProperty can be used to simplify this LocalProperty
<T> Optional<LocalProperty<T>>	translate(Function<E,Optional<T>> translator)
default Optional<LocalProperty<E>>	withConstants(Set<E> constants)	Simplfies this LocalProperty provided that the specified inputs are constants

Method Details

translate

<T> Optional<LocalProperty<T>> translate(Function<E,Optional<T>> translator)

isOrderSensitive

boolean isOrderSensitive()

Returns true if reordering breaks this LocalProperty

isSimplifiedBy

boolean isSimplifiedBy(LocalProperty<E> actual)

Return true if the actual LocalProperty can be used to simplify this LocalProperty

withConstants

default Optional<LocalProperty<E>> withConstants(Set<E> constants)

Simplfies this LocalProperty provided that the specified inputs are constants

constrain

default LocalProperty<E> constrain(Set<E> columns)

Return a new instance with the give (reduced) set of columns

getColumns

Set<E> getColumns()