org.apache.flink.streaming.api.operators

类 InternalTimeServiceManager<K>

java.lang.Object

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

类型参数:

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.

字段概要

字段

限定符和类型	字段和说明
protected static org.slf4j.Logger	LOG

方法概要

限定符和类型	方法和说明
void	advanceWatermark(Watermark watermark)
<N> InternalTimerService<N>	getInternalTimerService(String name, TimerSerializer<K,N> timerSerializer, Triggerable<K,N> triggerable)
<N> InternalTimerService<N>	getInternalTimerService(String name, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, Triggerable<K,N> triggerable, org.apache.flink.runtime.state.KeyedStateBackend<K> keyedStateBackend)
int	numEventTimeTimers()
int	numProcessingTimeTimers()
void	restoreStateForKeyGroup(InputStream stream, int keyGroupIdx, ClassLoader userCodeClassLoader)
void	snapshotState(org.apache.flink.runtime.state.KeyedStateBackend<?> keyedStateBackend, org.apache.flink.runtime.state.StateSnapshotContext context, String operatorName)
void	snapshotStateForKeyGroup(org.apache.flink.core.memory.DataOutputView stream, int keyGroupIdx)

从类继承的方法 java.lang.Object

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

字段详细资料

LOG

protected static final org.slf4j.Logger LOG

方法详细资料

getInternalTimerService

public <N> InternalTimerService<N> getInternalTimerService(String name,
                                                           org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                                                           Triggerable<K,N> triggerable,
                                                           org.apache.flink.runtime.state.KeyedStateBackend<K> keyedStateBackend)

getInternalTimerService

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

advanceWatermark

public void advanceWatermark(Watermark watermark)
                      throws Exception

抛出:

Exception

snapshotState

public void snapshotState(org.apache.flink.runtime.state.KeyedStateBackend<?> keyedStateBackend,
                          org.apache.flink.runtime.state.StateSnapshotContext context,
                          String operatorName)
                   throws Exception

抛出:

Exception

snapshotStateForKeyGroup

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

抛出:

IOException

restoreStateForKeyGroup

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

抛出:

IOException

numProcessingTimeTimers

@VisibleForTesting
public int numProcessingTimeTimers()

numEventTimeTimers

@VisibleForTesting
public int numEventTimeTimers()