org.apache.flink.streaming.api.operators

接口 Input<IN>

所有已知子接口:

OneInputStreamOperator<IN,OUT>

所有已知实现类:

AbstractInput, AsyncWaitOperator, BatchGroupedReduceOperator, CacheTransformationTranslator.IdentityStreamOperator, CacheTransformationTranslator.NoOpStreamOperator, CollectSinkOperator, ContinuousFileReaderOperator, EvictingWindowOperator, FinishedOnRestoreInput, GenericWriteAheadSink, KeyedProcessOperator, LegacyKeyedProcessOperator, ProcessOperator, QueryableAppendingStateOperator, QueryableValueStateOperator, StreamFilter, StreamFlatMap, StreamGroupedReduceOperator, StreamMap, StreamProject, StreamSink, TimestampsAndWatermarksOperator, WindowOperator

@PublicEvolving
public interface Input<IN>

Input interface used in MultipleInputStreamOperator. Most likely you don't want to implement this interface on your own. Instead you can use AbstractInput and AbstractStreamOperatorV2 to implement MultipleInputStreamOperator, or just AbstractStreamOperatorV2 to implement OneInputStreamOperator.

方法概要

限定符和类型	方法和说明
void	processElement(StreamRecord<IN> element) Processes one element that arrived on this input of the MultipleInputStreamOperator.
void	processLatencyMarker(LatencyMarker latencyMarker) Processes a LatencyMarker that arrived on the first input of this two-input operator.
void	processWatermark(Watermark mark) Processes a Watermark that arrived on the first input of this two-input operator.
void	processWatermarkStatus(WatermarkStatus watermarkStatus) Processes a WatermarkStatus that arrived on this input of the MultipleInputStreamOperator.
void	setKeyContextElement(StreamRecord<IN> record) Set the correct key context before processing the record.

方法详细资料

processElement

void processElement(StreamRecord<IN> element)
             throws Exception

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.

抛出:

Exception

processWatermark

void processWatermark(Watermark mark)
               throws Exception

Processes a Watermark that arrived on the first input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

抛出:

Exception

另请参阅:

Watermark

processWatermarkStatus

void processWatermarkStatus(WatermarkStatus watermarkStatus)
                     throws Exception

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

抛出:

Exception

另请参阅:

WatermarkStatus

processLatencyMarker

void processLatencyMarker(LatencyMarker latencyMarker)
                   throws Exception

Processes a LatencyMarker that arrived on the first input of this two-input operator. This method is guaranteed to not be called concurrently with other methods of the operator.

抛出:

Exception

另请参阅:

LatencyMarker

setKeyContextElement

void setKeyContextElement(StreamRecord<IN> record)
                   throws Exception

Set the correct key context before processing the record. Used for example to extract key from the record and pass that key to the state backends. This method is guaranteed to not be called concurrently with other methods of the operator.

抛出:

Exception