org.apache.hadoop.hbase.regionserver.wal

Class ProtobufLogWriter

java.lang.Object

org.apache.hadoop.hbase.regionserver.wal.WriterBase

org.apache.hadoop.hbase.regionserver.wal.ProtobufLogWriter

All Implemented Interfaces:

HLog.Writer

@InterfaceAudience.Private
public class ProtobufLogWriter
extends WriterBase

Writer for protobuf-based WAL.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.regionserver.wal.WriterBase

compressionContext

Constructor Summary

Constructors

Constructor and Description
ProtobufLogWriter()

Method Summary

Methods

Modifier and Type	Method and Description
void	append(HLog.Entry entry)
void	close()
long	getLength()
org.apache.hadoop.fs.FSDataOutputStream	getStream()
void	init(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf, boolean overwritable)
void	setWALTrailer(WALProtos.WALTrailer walTrailer) Sets HLog's WALTrailer.
void	sync()

Methods inherited from class org.apache.hadoop.hbase.regionserver.wal.WriterBase

initializeCompressionContext

Methods inherited from class java.lang.Object

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

Constructor Detail

ProtobufLogWriter

public ProtobufLogWriter()

Method Detail

init

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

Throws:

IOException

append

public void append(HLog.Entry entry)
            throws IOException

Throws:

IOException

close

public void close()
           throws IOException

Throws:

IOException

sync

public void sync()
          throws IOException

Throws:

IOException

getLength

public long getLength()
               throws IOException

Throws:

IOException

getStream

public org.apache.hadoop.fs.FSDataOutputStream getStream()

setWALTrailer

public void setWALTrailer(WALProtos.WALTrailer walTrailer)

Description copied from interface: HLog.Writer

Sets HLog's WALTrailer. This trailer is appended at the end of WAL on closing.

Parameters:

walTrailer - trailer to append to WAL.