org.apache.hadoop.hbase.regionserver

Class MutableSegment

java.lang.Object

org.apache.hadoop.hbase.regionserver.Segment

org.apache.hadoop.hbase.regionserver.MutableSegment

@InterfaceAudience.Private
public class MutableSegment
extends Segment

A mutable segment in memstore, specifically the active segment.

Field Summary

Fields

Modifier and Type	Field and Description
static long	DEEP_OVERHEAD

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

dataSize, FIXED_OVERHEAD, heapSize, minSequenceId, tagsPresent, timeRangeTracker

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	MutableSegment(CellSet cellSet, CellComparator comparator, MemStoreLAB memStoreLAB)

Method Summary

Modifier and Type	Method and Description
void	add(Cell cell, boolean mslabUsed, MemstoreSize memstoreSize) Adds the given cell into the segment
long	getMinTimestamp()
boolean	shouldSeek(TimeRange tr, long oldestUnexpiredTS)
void	upsert(Cell cell, long readpoint, MemstoreSize memstoreSize)

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

close, compare, compareRows, decScannerCount, getCellsCount, getCellSet, getComparator, getFirstAfter, getMinSequenceId, getScanner, getScanner, getScanners, getTimeRangeTracker, headSet, heapSize, heapSizeChange, incScannerCount, incSize, internalAdd, isEmpty, isTagsPresent, iterator, keySize, last, maybeCloneWithAllocator, setCellSet, tailSet, toString, updateMetaInfo

Methods inherited from class java.lang.Object

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

Field Detail

DEEP_OVERHEAD

public static final long DEEP_OVERHEAD

Constructor Detail

MutableSegment

protected MutableSegment(CellSet cellSet,
                         CellComparator comparator,
                         MemStoreLAB memStoreLAB)

Method Detail

add

public void add(Cell cell,
                boolean mslabUsed,
                MemstoreSize memstoreSize)

Adds the given cell into the segment

Parameters:

cell - the cell to add

mslabUsed - whether using MSLAB

memstoreSize -

upsert

public void upsert(Cell cell,
                   long readpoint,
                   MemstoreSize memstoreSize)

shouldSeek

public boolean shouldSeek(TimeRange tr,
                          long oldestUnexpiredTS)

Specified by:

shouldSeek in class Segment

getMinTimestamp

public long getMinTimestamp()

Specified by:

getMinTimestamp in class Segment