Package org.apache.hadoop.hbase.regionserver

Class MutableSegment

java.lang.Object

org.apache.hadoop.hbase.regionserver.Segment

org.apache.hadoop.hbase.regionserver.MutableSegment

All Implemented Interfaces:

MemStoreSizing

@Private
public class MutableSegment
extends Segment

A mutable segment in memstore, specifically the active segment.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	DEEP_OVERHEAD
private final AtomicBoolean	flushed

Fields inherited from class org.apache.hadoop.hbase.regionserver.Segment

FIXED_OVERHEAD, memStoreSizing, minSequenceId, tagsPresent, timeRangeTracker

Fields inherited from interface org.apache.hadoop.hbase.regionserver.MemStoreSizing

DUD

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MutableSegment(CellSet<ExtendedCell> cellSet, CellComparator comparator, MemStoreLAB memStoreLAB, MemStoreSizing memstoreSizing)

Method Summary

Modifier and Type	Method	Description
void	add(ExtendedCell cell, boolean mslabUsed, MemStoreSizing memStoreSizing, boolean sizeAddedPreOperation)	Adds the given cell into the segment
(package private) ExtendedCell	first()	Returns the first cell in the segment
protected long	indexEntrySize()
boolean	setInMemoryFlushed()
void	upsert(ExtendedCell cell, long readpoint, MemStoreSizing memStoreSizing, boolean sizeAddedPreOperation)

Methods inherited from class org.apache.hadoop.hbase.regionserver.Segment

close, compare, compareAndSetDataSize, compareRows, decScannerCount, dump, getCellLength, getCellsCount, getCellSet, getComparator, getDataSize, getHeapSize, getMemStoreLAB, getMemStoreSize, getMinSequenceId, getOffHeapSize, getScanner, getScanners, getTimeRangeTracker, headSet, heapSizeChange, incMemStoreSize, incScannerCount, indexEntryOffHeapSize, indexEntryOnHeapSize, internalAdd, isEmpty, isTagsPresent, iterator, last, maybeCloneWithAllocator, offHeapSizeChange, setCellSet, sharedLock, sharedUnlock, shouldSeek, tailSet, toString, updateMetaInfo, updateMetaInfo, waitForUpdates

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.regionserver.MemStoreSizing

decMemStoreSize, decMemStoreSize, incMemStoreSize

Field Details

flushed

private final AtomicBoolean flushed

DEEP_OVERHEAD

public static final long DEEP_OVERHEAD

Constructor Details

MutableSegment

protected MutableSegment(CellSet<ExtendedCell> cellSet,
 CellComparator comparator,
 MemStoreLAB memStoreLAB,
 MemStoreSizing memstoreSizing)

Method Details

add

public void add(ExtendedCell cell,
 boolean mslabUsed,
 MemStoreSizing memStoreSizing,
 boolean sizeAddedPreOperation)

Adds the given cell into the segment

Parameters:

cell - the cell to add

mslabUsed - whether using MSLAB

upsert

public void upsert(ExtendedCell cell,
 long readpoint,
 MemStoreSizing memStoreSizing,
 boolean sizeAddedPreOperation)

setInMemoryFlushed

public boolean setInMemoryFlushed()

first

ExtendedCell first()

Returns the first cell in the segment

Returns:

the first cell in the segment

indexEntrySize

protected long indexEntrySize()

Specified by:

indexEntrySize in class Segment