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

public 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 and Description
(package private) byte[]	encodedRegionName
(package private) List<WAL.Entry>	entries
private long	heapInBuffer
(package private) TableName	tableName

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
(package private) long	appendEntry(WAL.Entry entry)
byte[]	getEncodedRegionName()
List<WAL.Entry>	getEntries()
TableName	getTableName()
long	heapSize()
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 Detail

heapInBuffer

private long heapInBuffer

entries

final List<WAL.Entry> entries

tableName

final TableName tableName

encodedRegionName

final byte[] encodedRegionName

Constructor Detail

RegionEntryBuffer

RegionEntryBuffer(TableName tableName,
                  byte[] region)

Method Detail

appendEntry

long appendEntry(WAL.Entry entry)

internify

private void internify(WAL.Entry entry)

heapSize

public long heapSize()

Specified by:

heapSize in interface HeapSize

Returns:

Approximate 'exclusive deep size' of implementing object. Includes count of payload and hosting object sizings.

getEncodedRegionName

public byte[] getEncodedRegionName()

getTableName

public TableName getTableName()

getEntries

public List<WAL.Entry> getEntries()