org.apache.iotdb.tsfile.file.metadata.statistics

Class DoubleStatistics

java.lang.Object

org.apache.iotdb.tsfile.file.metadata.statistics.Statistics<Double>

org.apache.iotdb.tsfile.file.metadata.statistics.DoubleStatistics

public class DoubleStatistics
extends Statistics<Double>

Field Summary

Fields inherited from class org.apache.iotdb.tsfile.file.metadata.statistics.Statistics

isEmpty

Constructor Summary

Constructors

Constructor and Description
DoubleStatistics()

Method Summary

Modifier and Type	Method and Description
long	calculateRamSize()
void	deserialize(ByteBuffer byteBuffer)
void	deserialize(InputStream inputStream) read data from the inputStream.
boolean	equals(Object o)
Double	getFirstValue()
Double	getLastValue()
Double	getMaxValue()
Double	getMinValue()
int	getStatsSize() The output of this method should be identical to the method "serializeStats(OutputStream outputStream)"
double	getSumDoubleValue()
long	getSumLongValue()
TSDataType	getType()
int	hashCode()
void	initializeStats(double min, double max, double first, double last, double sum) initialize double statistics.
protected void	mergeStatisticsValue(Statistics<Double> stats)
int	serializeStats(OutputStream outputStream)
String	toString()

Methods inherited from class org.apache.iotdb.tsfile.file.metadata.statistics.Statistics

deserialize, deserialize, getCount, getEndTime, getSerializedSize, getSizeByType, getStartTime, getStatsByType, isEmpty, mergeStatistics, serialize, setCount, setEmpty, setEndTime, setStartTime, update, update, update, update, update, update, update, update, update, update, update, update, update, update, updateStats

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleStatistics

public DoubleStatistics()

Method Detail

getType

public TSDataType getType()

Specified by:

getType in class Statistics<Double>

getStatsSize

public int getStatsSize()

The output of this method should be identical to the method "serializeStats(OutputStream outputStream)"

Specified by:

getStatsSize in class Statistics<Double>

initializeStats

public void initializeStats(double min,
                            double max,
                            double first,
                            double last,
                            double sum)

initialize double statistics.

Parameters:

min - min value

max - max value

first - the first value

last - the last value

sum - sum value

calculateRamSize

public long calculateRamSize()

Specified by:

calculateRamSize in class Statistics<Double>

getMinValue

public Double getMinValue()

Specified by:

getMinValue in class Statistics<Double>

getMaxValue

public Double getMaxValue()

Specified by:

getMaxValue in class Statistics<Double>

getFirstValue

public Double getFirstValue()

Specified by:

getFirstValue in class Statistics<Double>

getLastValue

public Double getLastValue()

Specified by:

getLastValue in class Statistics<Double>

getSumDoubleValue

public double getSumDoubleValue()

Specified by:

getSumDoubleValue in class Statistics<Double>

getSumLongValue

public long getSumLongValue()

Specified by:

getSumLongValue in class Statistics<Double>

mergeStatisticsValue

protected void mergeStatisticsValue(Statistics<Double> stats)

Specified by:

mergeStatisticsValue in class Statistics<Double>

serializeStats

public int serializeStats(OutputStream outputStream)
                   throws IOException

Throws:

IOException

deserialize

public void deserialize(InputStream inputStream)
                 throws IOException

Description copied from class: Statistics

read data from the inputStream.

Specified by:

deserialize in class Statistics<Double>

Throws:

IOException

deserialize

public void deserialize(ByteBuffer byteBuffer)

Specified by:

deserialize in class Statistics<Double>

equals

public boolean equals(Object o)

Overrides:

equals in class Statistics<Double>

hashCode

public int hashCode()

Overrides:

hashCode in class Statistics<Double>

toString

public String toString()

Overrides:

toString in class Statistics<Double>