org.apache.seatunnel.api.source

接口 SourceSplitEnumerator.Context<SplitT extends SourceSplit>

封闭接口:

SourceSplitEnumerator<SplitT extends SourceSplit,StateT>

public static interface SourceSplitEnumerator.Context<SplitT extends SourceSplit>

方法概要

限定符和类型	方法和说明
void	assignSplit(int subtaskId, List<SplitT> splits) Assign the splits.
default void	assignSplit(int subtaskId, SplitT split) Assigns a single split.
int	currentParallelism()
MetricsContext	getMetricsContext()
Set<Integer>	registeredReaders() Get the currently registered readers.
void	sendEventToSourceReader(int subtaskId, SourceEvent event) Send a source event to a source reader.
void	signalNoMoreSplits(int subtask) Signals a subtask that it will not receive any further split.

方法详细资料

currentParallelism

int currentParallelism()

registeredReaders

Set<Integer> registeredReaders()

Get the currently registered readers. The mapping is from subtask id to the reader info.

返回:

the currently registered readers.

assignSplit

void assignSplit(int subtaskId,
                 List<SplitT> splits)

Assign the splits.

assignSplit

default void assignSplit(int subtaskId,
                         SplitT split)

Assigns a single split.

When assigning multiple splits, it is more efficient to assign all of them in a single call to the assignSplit(int, java.util.List<SplitT>) method.

参数:

split - The new split

subtaskId - The index of the operator's parallel subtask that shall receive the split.

signalNoMoreSplits

void signalNoMoreSplits(int subtask)

Signals a subtask that it will not receive any further split.

参数:

subtask - The index of the operator's parallel subtask that shall be signaled it will not receive any further split.

sendEventToSourceReader

void sendEventToSourceReader(int subtaskId,
                             SourceEvent event)

Send a source event to a source reader. The source reader is identified by its subtask id.

参数:

subtaskId - the subtask id of the source reader to send this event to.

event - the source event to send.

getMetricsContext

MetricsContext getMetricsContext()

返回:

metricsContext of this reader.