org.apache.flink.streaming.api.operators

Class InternalTimeServiceManager<K>

java.lang.Object

org.apache.flink.streaming.api.operators.InternalTimeServiceManager<K>

Type Parameters:

K - The type of keys used for the timers and the registry.

@Internal
public class InternalTimeServiceManager<K>
extends Object

An entity keeping all the time-related services available to all operators extending the AbstractStreamOperator. Right now, this is only a timer services. NOTE: These services are only available to keyed operators.

Method Summary

Modifier and Type	Method and Description
void	advanceWatermark(Watermark watermark)
<N> InternalTimerService<N>	getInternalTimerService(String name, TimerSerializer<K,N> timerSerializer, Triggerable<K,N> triggerable)
int	numEventTimeTimers()
int	numProcessingTimeTimers()
void	restoreStateForKeyGroup(InputStream stream, int keyGroupIdx, ClassLoader userCodeClassLoader)
void	snapshotStateForKeyGroup(org.apache.flink.core.memory.DataOutputView stream, int keyGroupIdx)

Methods inherited from class java.lang.Object

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

Method Detail

getInternalTimerService

public <N> InternalTimerService<N> getInternalTimerService(String name,
                                                           TimerSerializer<K,N> timerSerializer,
                                                           Triggerable<K,N> triggerable)

advanceWatermark

public void advanceWatermark(Watermark watermark)
                      throws Exception

Throws:

Exception

snapshotStateForKeyGroup

public void snapshotStateForKeyGroup(org.apache.flink.core.memory.DataOutputView stream,
                                     int keyGroupIdx)
                              throws IOException

Throws:

IOException

restoreStateForKeyGroup

public void restoreStateForKeyGroup(InputStream stream,
                                    int keyGroupIdx,
                                    ClassLoader userCodeClassLoader)
                             throws IOException

Throws:

IOException

numProcessingTimeTimers

@VisibleForTesting
public int numProcessingTimeTimers()

numEventTimeTimers

@VisibleForTesting
public int numEventTimeTimers()