Package io.trino.spi.connector

Interface DynamicFilter

public interface DynamicFilter

Field Summary

Fields

Modifier and Type	Field	Description
static final DynamicFilter	EMPTY
static final CompletableFuture<?>	NOT_BLOCKED

Method Summary

Modifier and Type	Method	Description
Set<ColumnHandle>	getColumnsCovered()	Set of keys of a TupleDomain to be returned from getCurrentPredicate() or a superset thereof.
TupleDomain<ColumnHandle>	getCurrentPredicate()
boolean	isAwaitable()	Returns true if dynamic filter can be narrowed down more and isBlocked() method can be used to wait for narrowed filter.
CompletableFuture<?>	isBlocked()	Returned a future, which blocks until dynamic filter is narrowed down.
boolean	isComplete()	Returns true it dynamic filter cannot be narrowed more.

Field Details

NOT_BLOCKED

static final CompletableFuture<?> NOT_BLOCKED

EMPTY

static final DynamicFilter EMPTY

Method Details

getColumnsCovered

Set<ColumnHandle> getColumnsCovered()

Set of keys of a TupleDomain to be returned from getCurrentPredicate() or a superset thereof.

isBlocked

CompletableFuture<?> isBlocked()

Returned a future, which blocks until dynamic filter is narrowed down. Future completes immediately if filter cannot be narrowed down more or filter cannot be waited for (consult result of isAwaitable() method). Dynamic filter might be narrowed down multiple times during query runtime.

isComplete

boolean isComplete()

Returns true it dynamic filter cannot be narrowed more.

isAwaitable

boolean isAwaitable()

Returns true if dynamic filter can be narrowed down more and isBlocked() method can be used to wait for narrowed filter.

getCurrentPredicate

TupleDomain<ColumnHandle> getCurrentPredicate()