org.apache.flink.streaming.api.operators

类 AbstractInput<IN,OUT>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractInput<IN,OUT>

所有已实现的接口:

Input<IN>

@Experimental
public abstract class AbstractInput<IN,OUT>
extends Object
implements Input<IN>

Base abstract implementation of Input interface intended to be used when extending AbstractStreamOperatorV2.

字段概要

字段

限定符和类型	字段和说明
protected int	inputId
protected Output<StreamRecord<OUT>>	output
protected AbstractStreamOperatorV2<OUT>	owner
protected org.apache.flink.api.java.functions.KeySelector<?,?>	stateKeySelector KeySelector for extracting a key from an element being processed.

构造器概要

构造器

构造器和说明
AbstractInput(AbstractStreamOperatorV2<OUT> owner, int inputId)

方法概要

限定符和类型	方法和说明
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 record) Set the correct key context before processing the record.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.streaming.api.operators.Input

processElement

字段详细资料

stateKeySelector

@Nullable
protected final org.apache.flink.api.java.functions.KeySelector<?,?> stateKeySelector

KeySelector for extracting a key from an element being processed. This is used to scope keyed state to a key. This is null if the operator is not a keyed operator.

This is for elements from the first input.

owner

protected final AbstractStreamOperatorV2<OUT> owner

inputId

protected final int inputId

output

protected final Output<StreamRecord<OUT>> output

构造器详细资料

AbstractInput

public AbstractInput(AbstractStreamOperatorV2<OUT> owner,
                     int inputId)

方法详细资料

processWatermark

public void processWatermark(Watermark mark)
                      throws Exception

从接口复制的说明: Input

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.

指定者:

processWatermark 在接口中 Input<IN>

抛出:

Exception

另请参阅:

Watermark

processLatencyMarker

public void processLatencyMarker(LatencyMarker latencyMarker)
                          throws Exception

从接口复制的说明: Input

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.

指定者:

processLatencyMarker 在接口中 Input<IN>

抛出:

Exception

另请参阅:

LatencyMarker

processWatermarkStatus

public void processWatermarkStatus(WatermarkStatus watermarkStatus)
                            throws Exception

从接口复制的说明: Input

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.

指定者:

processWatermarkStatus 在接口中 Input<IN>

抛出:

Exception

另请参阅:

WatermarkStatus

setKeyContextElement

public void setKeyContextElement(StreamRecord record)
                          throws Exception

从接口复制的说明: Input

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.

指定者:

setKeyContextElement 在接口中 Input<IN>

抛出:

Exception