Package org.apache.hadoop.hbase.wal

Class EntryBuffers.RegionEntryBuffer

java.lang.Object

org.apache.hadoop.hbase.wal.EntryBuffers.RegionEntryBuffer

All Implemented Interfaces:

HeapSize

Enclosing class:

EntryBuffers

static class EntryBuffers.RegionEntryBuffer
extends Object
implements HeapSize

A buffer of some number of edits for a given region. This accumulates edits and also provides a memory optimization in order to share a single byte array instance for the table and region name. Also tracks memory usage of the accumulated edits.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final byte[]	encodedRegionName
(package private) final List<WAL.Entry>	entryBuffer
private long	heapInBuffer
(package private) final TableName	tableName

Constructor Summary

Constructors

Constructor	Description
RegionEntryBuffer(TableName tableName, byte[] region)

Method Summary

Modifier and Type	Method	Description
(package private) long	appendEntry(WAL.Entry entry)
byte[]	getEncodedRegionName()
TableName	getTableName()
long	heapSize()	Return the approximate 'exclusive deep size' of implementing object.
private void	internify(WAL.Entry entry)

Methods inherited from class java.lang.Object

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

Field Details

heapInBuffer

private long heapInBuffer

entryBuffer

final List<WAL.Entry> entryBuffer

tableName

final TableName tableName

encodedRegionName

final byte[] encodedRegionName

Constructor Details

RegionEntryBuffer

RegionEntryBuffer(TableName tableName,
 byte[] region)

Method Details

appendEntry

long appendEntry(WAL.Entry entry)

internify

private void internify(WAL.Entry entry)

heapSize

public long heapSize()

Description copied from interface: HeapSize

Return the approximate 'exclusive deep size' of implementing object. Includes count of payload and hosting object sizings.

Specified by:

heapSize in interface HeapSize

getEncodedRegionName

public byte[] getEncodedRegionName()

getTableName

public TableName getTableName()