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

Class AsyncStreamFlatMap<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,org.apache.flink.api.common.functions.FlatMapFunction<IN,OUT>>

org.apache.flink.runtime.asyncprocessing.operators.AsyncStreamFlatMap<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, UserFunctionProvider<org.apache.flink.api.common.functions.FlatMapFunction<IN,OUT>>, YieldingOperator<OUT>, AsyncStateProcessing, AsyncStateProcessingOperator

@Internal
public class AsyncStreamFlatMap<IN,OUT>
extends AbstractAsyncStateUdfStreamOperator<OUT,org.apache.flink.api.common.functions.FlatMapFunction<IN,OUT>>
implements OneInputStreamOperator<IN,OUT>

A AbstractAsyncStateStreamOperator for executing FlatMapFunctions.

See Also:

• Serialized Form

Field Summary

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

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
AsyncStreamFlatMap(org.apache.flink.api.common.functions.FlatMapFunction<IN,OUT> flatMapper)

Method Summary

Modifier and Type	Method	Description
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

AsyncStreamFlatMap

public AsyncStreamFlatMap(org.apache.flink.api.common.functions.FlatMapFunction<IN,OUT> flatMapper)

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<IN>

Overrides:

open in class AbstractAsyncStateUdfStreamOperator<OUT,org.apache.flink.api.common.functions.FlatMapFunction<IN,OUT>>

Throws:

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

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<IN>

Throws:

Exception