cn.tenmg.cdc.log.connectors.base.source.reader.external

接口 Fetcher<T,Split>

所有已知实现类:

JdbcSourceScanFetcher, JdbcSourceStreamFetcher

@Experimental
public interface Fetcher<T,Split>

Fetcher to fetch data of a table split, the split is either snapshot split SnapshotSplit or stream split StreamSplit.

方法概要

限定符和类型	方法和说明
void	close() Close the client and releases all resources.
boolean	isFinished() Return the current fetch task is finished or not.
Iterator<T>	pollSplitRecords() Fetched records from data source.
void	submitTask(FetchTask<Split> fetchTask) Add to task to fetch, this should call only when the reader is idle.

方法详细资料

submitTask

void submitTask(FetchTask<Split> fetchTask)

Add to task to fetch, this should call only when the reader is idle.

pollSplitRecords

@Nullable
Iterator<T> pollSplitRecords()
                                 throws InterruptedException

Fetched records from data source. The method should return null when reaching the end of the split, the empty Iterator will be returned if the data of split is on pulling.

抛出:

InterruptedException

isFinished

boolean isFinished()

Return the current fetch task is finished or not.

close

void close()

Close the client and releases all resources.