org.apache.seatunnel.api.source

接口 SourceReader.Context

封闭接口:

SourceReader<T,SplitT extends SourceSplit>

public static interface SourceReader.Context

方法概要

限定符和类型	方法和说明
Boundedness	getBoundedness()
int	getIndexOfSubtask()
MetricsContext	getMetricsContext()
void	sendSourceEventToEnumerator(SourceEvent sourceEvent) Send a source event to the source coordinator.
void	sendSplitRequest() Sends a split request to the source's SourceSplitEnumerator.
void	signalNoMoreElement() Indicator that the input has reached the end of data.

方法详细资料

getIndexOfSubtask

int getIndexOfSubtask()

返回:

The index of this subtask.

getBoundedness

Boundedness getBoundedness()

返回:

boundedness of this reader.

signalNoMoreElement

void signalNoMoreElement()

Indicator that the input has reached the end of data. Then will cancel this reader.

sendSplitRequest

void sendSplitRequest()

Sends a split request to the source's SourceSplitEnumerator. This will result in a call to the SourceSplitEnumerator.handleSplitRequest(int) method, with this reader's parallel subtask id and the hostname where this reader runs.

sendSourceEventToEnumerator

void sendSourceEventToEnumerator(SourceEvent sourceEvent)

Send a source event to the source coordinator.

参数:

sourceEvent - the source event to coordinator.

getMetricsContext

MetricsContext getMetricsContext()

返回:

metricsContext of this reader.