org.apache.hadoop.hbase.regionserver.wal
Interface HLog.Writer

All Known Implementing Classes:

ProtobufLogWriter, SecureProtobufLogWriter, WriterBase

Enclosing interface:

HLog

public static interface HLog.Writer

Method Summary

void	append(HLog.Entry entry)
void	close()
long	getLength()
void	init(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration c, boolean overwritable)
void	setWALTrailer(org.apache.hadoop.hbase.protobuf.generated.WALProtos.WALTrailer walTrailer) Sets HLog's WALTrailer.
void	sync()

Method Detail

init

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

Throws:

IOException

close

void close()
           throws IOException

Throws:

IOException

sync

void sync()
          throws IOException

Throws:

IOException

append

void append(HLog.Entry entry)
            throws IOException

Throws:

IOException

getLength

long getLength()
               throws IOException

Throws:

IOException

setWALTrailer

void setWALTrailer(org.apache.hadoop.hbase.protobuf.generated.WALProtos.WALTrailer walTrailer)

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

Parameters:

walTrailer - trailer to append to WAL.