org.apache.flink.streaming.api.operators

Interface OneInputStreamOperator<IN,OUT>

Type Parameters:

IN - The input type of the operator

OUT - The output type of the operator

All Superinterfaces:

org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.util.Disposable, Input<IN>, KeyContext, Serializable, StreamOperator<OUT>

All Known Implementing Classes:

AsyncWaitOperator, BatchGroupedReduceOperator, CollectSinkOperator, ContinuousFileReaderOperator, EvictingWindowOperator, GenericWriteAheadSink, KeyedProcessOperator, LegacyKeyedProcessOperator, ProcessOperator, QueryableAppendingStateOperator, QueryableValueStateOperator, StreamFilter, StreamFlatMap, StreamGroupedReduceOperator, StreamingGlobalCommitterOperator, StreamMap, StreamProject, StreamSink, TimestampsAndWatermarksOperator, WindowOperator

@PublicEvolving
public interface OneInputStreamOperator<IN,OUT>
extends StreamOperator<OUT>, Input<IN>

Interface for stream operators with one input. Use AbstractStreamOperator as a base class if you want to implement a custom operator.

Method Summary

Modifier and Type	Method and Description
default void	setKeyContextElement(StreamRecord<IN> record)

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

close, dispose, getMetricGroup, getOperatorID, initializeState, open, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

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

notifyCheckpointAborted, notifyCheckpointComplete

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

getCurrentKey, setCurrentKey

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

processElement, processLatencyMarker, processWatermark

Method Detail

setKeyContextElement

default void setKeyContextElement(StreamRecord<IN> record)
                           throws Exception

Specified by:

setKeyContextElement in interface Input<IN>

Throws:

Exception