org.apache.hadoop.hbase.regionserver.wal
Class SequenceFileLogReader

java.lang.Object
  org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader

All Implemented Interfaces:

HLog.Reader

public class SequenceFileLogReader
extends java.lang.Object
implements HLog.Reader

Field Summary

protected java.lang.Class<? extends HLogKey>

keyClass

Constructor Summary

SequenceFileLogReader()
Default constructor.

SequenceFileLogReader(java.lang.Class<? extends HLogKey> keyClass)
This constructor allows a specific HLogKey implementation to override that which would otherwise be chosen via configuration property.

Method Summary

protected java.io.IOException	addFileInfoToException(java.io.IOException ioe)
void	close()
long	getPosition()
void	init(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf)
HLog.Entry	next()
HLog.Entry	next(HLog.Entry reuse)
void	seek(long pos)

Methods inherited from class java.lang.Object

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

Field Detail

keyClass

protected java.lang.Class<? extends HLogKey> keyClass

Constructor Detail

SequenceFileLogReader

public SequenceFileLogReader()

Default constructor.

SequenceFileLogReader

public SequenceFileLogReader(java.lang.Class<? extends HLogKey> keyClass)

This constructor allows a specific HLogKey implementation to override that which would otherwise be chosen via configuration property.

Parameters:

keyClass -

Method Detail

init

public void init(org.apache.hadoop.fs.FileSystem fs,
                 org.apache.hadoop.fs.Path path,
                 org.apache.hadoop.conf.Configuration conf)
          throws java.io.IOException

Specified by:

init in interface HLog.Reader

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface HLog.Reader

Throws:

java.io.IOException

next

public HLog.Entry next()
                throws java.io.IOException

Specified by:

next in interface HLog.Reader

Throws:

java.io.IOException

next

public HLog.Entry next(HLog.Entry reuse)
                throws java.io.IOException

Specified by:

next in interface HLog.Reader

Throws:

java.io.IOException

seek

public void seek(long pos)
          throws java.io.IOException

Specified by:

seek in interface HLog.Reader

Throws:

java.io.IOException

getPosition

public long getPosition()
                 throws java.io.IOException

Specified by:

getPosition in interface HLog.Reader

Throws:

java.io.IOException

addFileInfoToException

protected java.io.IOException addFileInfoToException(java.io.IOException ioe)
                                              throws java.io.IOException

Throws:

java.io.IOException