org.apache.mina.core.file

接口 FileRegion

所有已知实现类:

DefaultFileRegion, FilenameFileRegion

public interface FileRegion

Indicates the region of a file to be sent to the remote host.

作者:

Apache MINA Project

方法概要

方法

限定符和类型	方法和说明
java.nio.channels.FileChannel	getFileChannel() The open FileChannel from which data will be read to send to remote host.
java.lang.String	getFilename() Provides an absolute filename for the underlying FileChannel.
long	getPosition() The current file position from which data will be read.
long	getRemainingBytes() The number of bytes remaining to be written from the file to the remote host.
long	getWrittenBytes() The total number of bytes already written.
void	update(long amount) Updates the current file position based on the specified amount.

方法详细资料

getFileChannel

java.nio.channels.FileChannel getFileChannel()

The open FileChannel from which data will be read to send to remote host.

返回:

An open FileChannel.

getPosition

long getPosition()

The current file position from which data will be read.

返回:

The current file position.

update

void update(long amount)

Updates the current file position based on the specified amount. This increases the value returned by getPosition() and getWrittenBytes() by the given amount and decreases the value returned by getRemainingBytes() by the given amount.

参数:

amount - The new value for the file position.

getRemainingBytes

long getRemainingBytes()

The number of bytes remaining to be written from the file to the remote host.

返回:

The number of bytes remaining to be written.

getWrittenBytes

long getWrittenBytes()

The total number of bytes already written.

返回:

The total number of bytes already written.

getFilename

java.lang.String getFilename()

Provides an absolute filename for the underlying FileChannel.

返回:

the absolute filename, or null if the FileRegion does not know the filename