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:

org.apache.flink.runtime.state.Keyed<K>, org.apache.flink.runtime.state.PriorityComparable<InternalTimer<?,?>>

All Known Implementing Classes:

TimerHeapInternalTimer

@Internal
public interface InternalTimer<K,N>
extends org.apache.flink.runtime.state.PriorityComparable<InternalTimer<?,?>>, org.apache.flink.runtime.state.Keyed<K>

Internal interface for in-flight timers.

Field Summary

Fields

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

Method Summary

Modifier and Type	Method and 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 Detail

KEY_EXTRACTOR_FUNCTION

static final org.apache.flink.runtime.state.KeyExtractorFunction<InternalTimer<?,?>> KEY_EXTRACTOR_FUNCTION

Function to extract the key from a InternalTimer.

TIMER_COMPARATOR

static final org.apache.flink.runtime.state.PriorityComparator<InternalTimer<?,?>> TIMER_COMPARATOR

Function to compare instances of InternalTimer.

Method Detail

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 org.apache.flink.runtime.state.Keyed<K>

getNamespace

@Nonnull
N getNamespace()

Returns the namespace that is bound to this timer.