org.apache.hadoop.hbase.regionserver.wal

类 ProtobufLogWriter

java.lang.Object

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

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

所有已实现的接口:

Closeable, AutoCloseable, DefaultWALProvider.Writer, WALProvider.Writer

直接已知子类:

SecureProtobufLogWriter

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class ProtobufLogWriter
extends WriterBase

Writer for protobuf-based WAL.

字段概要

字段

限定符和类型	字段和说明
protected Codec.Encoder	cellEncoder
protected WALCellCodec.ByteStringCompressor	compressor
protected org.apache.hadoop.fs.FSDataOutputStream	output

从类继承的字段 org.apache.hadoop.hbase.regionserver.wal.WriterBase

compressionContext, conf

构造器概要

构造器

构造器和说明
ProtobufLogWriter()

方法概要

方法

限定符和类型	方法和说明
void	append(WAL.Entry entry)
protected org.apache.hadoop.hbase.protobuf.generated.WALProtos.WALHeader	buildWALHeader(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.hbase.protobuf.generated.WALProtos.WALHeader.Builder builder)
void	close()
protected WALCellCodec	getCodec(org.apache.hadoop.conf.Configuration conf, CompressionContext compressionContext)
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)
protected void	initAfterHeader(boolean doCompress)
void	sync()

从类继承的方法 org.apache.hadoop.hbase.regionserver.wal.WriterBase

initializeCompressionContext

从类继承的方法 java.lang.Object

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

字段详细资料

output

protected org.apache.hadoop.fs.FSDataOutputStream output

cellEncoder

protected Codec.Encoder cellEncoder

compressor

protected WALCellCodec.ByteStringCompressor compressor

构造器详细资料

ProtobufLogWriter

public ProtobufLogWriter()

方法详细资料

getCodec

protected WALCellCodec getCodec(org.apache.hadoop.conf.Configuration conf,
                    CompressionContext compressionContext)
                         throws IOException

抛出:

IOException

buildWALHeader

protected org.apache.hadoop.hbase.protobuf.generated.WALProtos.WALHeader buildWALHeader(org.apache.hadoop.conf.Configuration conf,
                                                                            org.apache.hadoop.hbase.protobuf.generated.WALProtos.WALHeader.Builder builder)
                                                                                 throws IOException

抛出:

IOException

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

指定者:

init 在接口中 DefaultWALProvider.Writer

覆盖:

init 在类中 WriterBase

抛出:

IOException

initAfterHeader

protected void initAfterHeader(boolean doCompress)
                        throws IOException

抛出:

IOException

append

public void append(WAL.Entry entry)
            throws IOException

抛出:

IOException

close

public void close()
           throws IOException

抛出:

IOException

sync

public void sync()
          throws IOException

抛出:

IOException

getLength

public long getLength()
               throws IOException

抛出:

IOException

getStream

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