Package org.apache.flink.runtime.asyncprocessing.operators

Class AsyncKeyedProcessOperator<K,IN,OUT>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateStreamOperator<OUT>

org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateUdfStreamOperator<OUT,KeyedProcessFunction<K,IN,OUT>>

org.apache.flink.runtime.asyncprocessing.operators.AsyncKeyedProcessOperator<K,IN,OUT>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.state.CheckpointListener, Input<IN>, KeyContext, KeyContextHandler, OneInputStreamOperator<IN,OUT>, org.apache.flink.streaming.api.operators.OutputTypeConfigurable<OUT>, StreamOperator<OUT>, StreamOperatorStateHandler.CheckpointedStreamOperator, Triggerable<K,VoidNamespace>, UserFunctionProvider<KeyedProcessFunction<K,IN,OUT>>, YieldingOperator<OUT>, AsyncStateProcessing, AsyncStateProcessingOperator

@Internal
public class AsyncKeyedProcessOperator<K,IN,OUT>
extends AbstractAsyncStateUdfStreamOperator<OUT,KeyedProcessFunction<K,IN,OUT>>
implements OneInputStreamOperator<IN,OUT>, Triggerable<K,VoidNamespace>

A StreamOperator for executing KeyedProcessFunction with async state processing. It is recommended to use DeclaringAsyncKeyedProcessFunction instead.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateUdfStreamOperator

declarationContext, userFunction

Fields inherited from class org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateStreamOperator

declarationManager

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

combinedWatermark, config, lastRecordAttributes1, lastRecordAttributes2, latencyStats, metrics, output, processingTimeService, stateHandler, stateKeySelector1, stateKeySelector2, timeServiceManager

Constructor Summary

Constructors

Constructor	Description
AsyncKeyedProcessOperator(KeyedProcessFunction<K,IN,OUT> function)

Method Summary

Modifier and Type	Method	Description
void	onEventTime(InternalTimer<K,VoidNamespace> timer)	Invoked when an event-time timer fires.
void	onProcessingTime(InternalTimer<K,VoidNamespace> timer)	Invoked when a processing-time timer fires.
void	open()	This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.
void	processElement(StreamRecord<IN> element)	Processes one element that arrived on this input of the MultipleInputStreamOperator.

Methods inherited from class org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateUdfStreamOperator

close, finish, getUserFunction, initializeState, notifyCheckpointAborted, notifyCheckpointComplete, setOutputType, setup, snapshotState

Methods inherited from class org.apache.flink.runtime.asyncprocessing.operators.AbstractAsyncStateStreamOperator

asyncProcessWithKey, beforeInitializeStateHandler, drainStateRequests, getAsyncKeyedStateBackend, getCurrentKey, getDeclarationManager, getElementOrder, getInternalTimerService, getOrCreateKeyedState, getRecordProcessor, isAsyncStateProcessingEnabled, newKeySelected, postProcessElement, postProcessWatermark, prepareSnapshotPreBarrier, preProcessWatermark, preserveRecordOrderAndProcess, processRecordAttributes, processRecordAttributes1, processRecordAttributes2, processWatermark, processWatermark, processWatermark1, processWatermark1Internal, processWatermark2, processWatermark2Internal, processWatermarkInternal, processWatermarkStatus, processWatermarkStatus, reportOrForwardLatencyMarker, setAsyncKeyedContextElement, setKeyContextElement1, setKeyContextElement2

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

getContainingTask, getExecutionConfig, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getStateKeySelector1, getStateKeySelector2, getTimeServiceManager, getUserCodeClassloader, hasKeyContext1, hasKeyContext2, initializeState, isUsingCustomRawKeyedState, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2, processWatermarkStatus1, processWatermarkStatus2, setCurrentKey, setMailboxExecutor, setProcessingTimeService, snapshotState, useSplittableTimers

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

Methods inherited from interface org.apache.flink.streaming.api.operators.Input

processLatencyMarker, processRecordAttributes, processWatermark, processWatermark, processWatermarkStatus

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContextHandler

hasKeyContext

Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

setKeyContextElement

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

close, finish, getMetricGroup, getOperatorAttributes, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

Constructor Details

AsyncKeyedProcessOperator

public AsyncKeyedProcessOperator(KeyedProcessFunction<K,IN,OUT> function)

Method Details

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<K>

Overrides:

open in class AbstractAsyncStateUdfStreamOperator<OUT,KeyedProcessFunction<K,IN,OUT>>

Throws:

Exception - An exception in this method causes the operator to fail.

onEventTime

public void onEventTime(InternalTimer<K,VoidNamespace> timer)
                 throws Exception

Description copied from interface: Triggerable

Invoked when an event-time timer fires.

Specified by:

onEventTime in interface Triggerable<K,IN>

Throws:

Exception

onProcessingTime

public void onProcessingTime(InternalTimer<K,VoidNamespace> timer)
                      throws Exception

Description copied from interface: Triggerable

Invoked when a processing-time timer fires.

Specified by:

onProcessingTime in interface Triggerable<K,IN>

Throws:

Exception

processElement

public void processElement(StreamRecord<IN> element)
                    throws Exception

Description copied from interface: Input

Processes one element that arrived on this input of the MultipleInputStreamOperator. This method is guaranteed to not be called concurrently with other methods of the operator.

Specified by:

processElement in interface Input<K>

Throws:

Exception