org.apache.hadoop.tools.rumen

类 RewindableInputStream

java.lang.Object

java.io.InputStream

org.apache.hadoop.tools.rumen.RewindableInputStream

所有已实现的接口:

Closeable, AutoCloseable

public class RewindableInputStream
extends InputStream

A simple wrapper class to make any input stream "rewindable". It could be made more memory efficient by grow the internal buffer adaptively.

构造器概要

构造器

构造器和说明
RewindableInputStream(InputStream input) Constructor.
RewindableInputStream(InputStream input, int maxBytesToRemember) Constructor

方法概要

方法

限定符和类型	方法和说明
void	close()
int	read()
int	read(byte[] buffer, int offset, int length)
InputStream	rewind()

从类继承的方法 java.io.InputStream

available, mark, markSupported, read, reset, skip

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

RewindableInputStream

public RewindableInputStream(InputStream input)

Constructor.

参数:

input -

RewindableInputStream

public RewindableInputStream(InputStream input,
                     int maxBytesToRemember)

Constructor

参数:

input - input stream.

maxBytesToRemember - Maximum number of bytes we need to remember at the beginning of the stream. If rewind() is called after so many bytes are read from the stream, rewind() would fail.

方法详细资料

read

public int read()
         throws IOException

指定者:

read 在类中 InputStream

抛出:

IOException

read

public int read(byte[] buffer,
       int offset,
       int length)
         throws IOException

覆盖:

read 在类中 InputStream

抛出:

IOException

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 InputStream

抛出:

IOException

rewind

public InputStream rewind()
                   throws IOException

抛出:

IOException