org.apache.hadoop.io

接口 ReadaheadPool.ReadaheadRequest

封闭类:

ReadaheadPool

public static interface ReadaheadPool.ReadaheadRequest

An outstanding readahead request that has been submitted to the pool. This request may be pending or may have been completed.

方法概要

方法

限定符和类型	方法和说明
void	cancel() Cancels the request for readahead.
long	getLength()
long	getOffset()

方法详细资料

cancel

void cancel()

Cancels the request for readahead. This should be used if the reader no longer needs the requested data, before closing the related file descriptor. It is safe to use even if the readahead request has already been fulfilled.

getOffset

long getOffset()

返回:

the requested offset

getLength

long getLength()

返回:

the requested length