org.apache.hadoop.hbase.regionserver

接口 ChangedReadersObserver

所有已知实现类:

MobStoreScanner, ReversedMobStoreScanner, ReversedStoreScanner, StoreScanner

@InterfaceAudience.Private
public interface ChangedReadersObserver

If set of MapFile.Readers in Store change, implementors are notified.

方法概要

限定符和类型	方法和说明
long	getReadPoint()
void	updateReaders(List<HStoreFile> sfs, List<KeyValueScanner> memStoreScanners) Notify observers.

方法详细资料

getReadPoint

long getReadPoint()

返回:

the read point of the current scan

updateReaders

void updateReaders(List<HStoreFile> sfs,
                   List<KeyValueScanner> memStoreScanners)
            throws IOException

Notify observers.

参数:

sfs - The new files

memStoreScanners - scanner of current memstore

抛出:

IOException - e