Package org.apache.flink.streaming.api.operators

Interface InternalTimer<K,N>

Type Parameters:

K - Type of the keys to which timers are scoped.

N - Type of the namespace to which timers are scoped.

All Superinterfaces:

Keyed<K>, PriorityComparable<InternalTimer<?,?>>

All Known Implementing Classes:

TimerHeapInternalTimer

@Internal
public interface InternalTimer<K,N>
extends PriorityComparable<InternalTimer<?,?>>, Keyed<K>

Internal interface for in-flight timers.

Field Summary

Fields

Modifier and Type	Field	Description
static final KeyExtractorFunction<InternalTimer<?,?>>	KEY_EXTRACTOR_FUNCTION	Function to extract the key from a InternalTimer.
static final PriorityComparator<InternalTimer<?,?>>	TIMER_COMPARATOR	Function to compare instances of InternalTimer.

Method Summary

Modifier and Type	Method	Description
K	getKey()	Returns the key that is bound to this timer.
N	getNamespace()	Returns the namespace that is bound to this timer.
long	getTimestamp()	Returns the timestamp of the timer.

Methods inherited from interface org.apache.flink.runtime.state.PriorityComparable

comparePriorityTo

Field Details

KEY_EXTRACTOR_FUNCTION

static final KeyExtractorFunction<InternalTimer<?,?>> KEY_EXTRACTOR_FUNCTION

Function to extract the key from a InternalTimer.

TIMER_COMPARATOR

static final PriorityComparator<InternalTimer<?,?>> TIMER_COMPARATOR

Function to compare instances of InternalTimer.

Method Details

getTimestamp

long getTimestamp()

Returns the timestamp of the timer. This value determines the point in time when the timer will fire.

getKey

@Nonnull
K getKey()

Returns the key that is bound to this timer.

Specified by:

getKey in interface Keyed<K>

getNamespace

@Nonnull
N getNamespace()

Returns the namespace that is bound to this timer.