org.tikv.common.statistics

Class IndexStatistics

java.lang.Object

org.tikv.common.statistics.IndexStatistics

public class IndexStatistics
extends Object

Each Index will have a single IndexStatistics to store Histogram info and CMSketch info, if any.

Constructor Summary

Constructors

Constructor and Description
IndexStatistics(Histogram histogram, CMSketch cmSketch, TiIndexInfo indexInfo)

Method Summary

Modifier and Type	Method and Description
CMSketch	getCmSketch()
Histogram	getHistogram()
TiIndexInfo	getIndexInfo()
double	getRowCount(List<IndexRange> indexRanges)
void	setCmSketch(CMSketch cmSketch)
void	setHistogram(Histogram histogram)
void	setIndexInfo(TiIndexInfo indexInfo)

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexStatistics

public IndexStatistics(Histogram histogram,
                       CMSketch cmSketch,
                       TiIndexInfo indexInfo)

Method Detail

getHistogram

public Histogram getHistogram()

setHistogram

public void setHistogram(Histogram histogram)

getCmSketch

public CMSketch getCmSketch()

setCmSketch

public void setCmSketch(CMSketch cmSketch)

getIndexInfo

public TiIndexInfo getIndexInfo()

setIndexInfo

public void setIndexInfo(TiIndexInfo indexInfo)

getRowCount

public double getRowCount(List<IndexRange> indexRanges)