parquet.column.statistics

Class DoubleStatistics

java.lang.Object

parquet.column.statistics.Statistics<Double>

parquet.column.statistics.DoubleStatistics

public class DoubleStatistics
extends Statistics<Double>

Constructor Summary

Constructors

Constructor and Description
DoubleStatistics()

Method Summary

Methods

Modifier and Type	Method and Description
Double	genericGetMax()
Double	genericGetMin()
double	getMax()
byte[]	getMaxBytes() Abstract method to return the max value as a byte array
double	getMin()
byte[]	getMinBytes() Abstract method to return the min value as a byte array
void	initializeStats(double min_value, double max_value)
void	mergeStatisticsMinMax(Statistics stats) Abstract method to merge this statistics min and max with the values of the parameter object.
void	setMinMax(double min, double max)
void	setMinMaxFromBytes(byte[] minBytes, byte[] maxBytes) Abstract method to set min and max values from byte arrays.
String	toString() toString() to display min, max, num_nulls in a string
void	updateStats(double value) updates statistics min and max using the passed value
void	updateStats(double min_value, double max_value)

Methods inherited from class parquet.column.statistics.Statistics

equals, getNumNulls, getStatsBasedOnType, hashCode, incrementNumNulls, incrementNumNulls, isEmpty, markAsNotEmpty, mergeStatistics, setNumNulls, updateStats, updateStats, updateStats, updateStats, updateStats

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleStatistics

public DoubleStatistics()

Method Detail

updateStats

public void updateStats(double value)

Description copied from class: Statistics

updates statistics min and max using the passed value

Overrides:

updateStats in class Statistics<Double>

Parameters:

value - value to use to update min and max

mergeStatisticsMinMax

public void mergeStatisticsMinMax(Statistics stats)

Description copied from class: Statistics

Abstract method to merge this statistics min and max with the values of the parameter object. Does not do any checks, only called internally.

Specified by:

mergeStatisticsMinMax in class Statistics<Double>

Parameters:

stats - Statistics object to merge with

setMinMaxFromBytes

public void setMinMaxFromBytes(byte[] minBytes,
                      byte[] maxBytes)

Description copied from class: Statistics

Abstract method to set min and max values from byte arrays.

Specified by:

setMinMaxFromBytes in class Statistics<Double>

Parameters:

minBytes - byte array to set the min value to

maxBytes - byte array to set the max value to

getMaxBytes

public byte[] getMaxBytes()

Description copied from class: Statistics

Abstract method to return the max value as a byte array

Specified by:

getMaxBytes in class Statistics<Double>

Returns:

byte array corresponding to the max value

getMinBytes

public byte[] getMinBytes()

Description copied from class: Statistics

Abstract method to return the min value as a byte array

Specified by:

getMinBytes in class Statistics<Double>

Returns:

byte array corresponding to the min value

toString

public String toString()

Description copied from class: Statistics

toString() to display min, max, num_nulls in a string

Specified by:

toString in class Statistics<Double>

updateStats

public void updateStats(double min_value,
               double max_value)

initializeStats

public void initializeStats(double min_value,
                   double max_value)

genericGetMin

public Double genericGetMin()

Specified by:

genericGetMin in class Statistics<Double>

genericGetMax

public Double genericGetMax()

Specified by:

genericGetMax in class Statistics<Double>

getMax

public double getMax()

getMin

public double getMin()

setMinMax

public void setMinMax(double min,
             double max)