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

Class TimeStatistics

java.lang.Object

org.apache.iotdb.tsfile.file.metadata.statistics.Statistics<java.lang.Long>

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

public class TimeStatistics
extends Statistics<java.lang.Long>

Field Summary

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

isEmpty

Constructor Summary

Constructors

Constructor	Description
TimeStatistics()

Method Summary

Modifier and Type	Method	Description
long	calculateRamSize()
void	deserialize(java.io.InputStream inputStream)	deserialize data from the inputStream.
void	deserialize(java.nio.ByteBuffer byteBuffer)
java.lang.Long	getFirstValue()
java.lang.Long	getLastValue()
java.lang.Long	getMaxValue()
java.lang.Long	getMinValue()
int	getStatsSize()	The output of this method should be identical to the method "serializeStats(outputStream)".
double	getSumDoubleValue()
long	getSumLongValue()
TSDataType	getType()
protected void	mergeStatisticsValue(Statistics<java.lang.Long> stats)
int	serializeStats(java.io.OutputStream outputStream)
void	update(long time)
void	update(long[] time, int batchSize)
void	update(long[] time, int batchSize, int arrayOffset)
void	updateStats(long minValue, long maxValue)	This method with two parameters is only used by unsequence which updates/inserts/deletes timestamp.

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

containedByTimeFilter, deserialize, deserialize, equals, getCount, getEndTime, getSerializedSize, getSizeByType, getStartTime, getStatsByType, hashCode, hasNullValue, isEmpty, mergeStatistics, serialize, setCount, setEmpty, setEndTime, setStartTime, toString, update, update, update, update, update, update, update, update, update, update, update, update

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeStatistics

public TimeStatistics()

Method Detail

getType

public TSDataType getType()

Specified by:

getType in class Statistics<java.lang.Long>

getStatsSize

public int getStatsSize()

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

Specified by:

getStatsSize in class Statistics<java.lang.Long>

update

public void update(long time)

Overrides:

update in class Statistics<java.lang.Long>

update

public void update(long[] time,
                   int batchSize)

Overrides:

update in class Statistics<java.lang.Long>

update

public void update(long[] time,
                   int batchSize,
                   int arrayOffset)

Overrides:

update in class Statistics<java.lang.Long>

getMinValue

public java.lang.Long getMinValue()

Specified by:

getMinValue in class Statistics<java.lang.Long>

getMaxValue

public java.lang.Long getMaxValue()

Specified by:

getMaxValue in class Statistics<java.lang.Long>

getFirstValue

public java.lang.Long getFirstValue()

Specified by:

getFirstValue in class Statistics<java.lang.Long>

getLastValue

public java.lang.Long getLastValue()

Specified by:

getLastValue in class Statistics<java.lang.Long>

getSumDoubleValue

public double getSumDoubleValue()

Specified by:

getSumDoubleValue in class Statistics<java.lang.Long>

getSumLongValue

public long getSumLongValue()

Specified by:

getSumLongValue in class Statistics<java.lang.Long>

updateStats

public void updateStats(long minValue,
                        long maxValue)

Description copied from class: Statistics

This method with two parameters is only used by unsequence which updates/inserts/deletes timestamp.

Overrides:

updateStats in class Statistics<java.lang.Long>

Parameters:

minValue - min timestamp

maxValue - max timestamp

calculateRamSize

public long calculateRamSize()

Specified by:

calculateRamSize in class Statistics<java.lang.Long>

mergeStatisticsValue

protected void mergeStatisticsValue(Statistics<java.lang.Long> stats)

Specified by:

mergeStatisticsValue in class Statistics<java.lang.Long>

serializeStats

public int serializeStats(java.io.OutputStream outputStream)

deserialize

public void deserialize(java.io.InputStream inputStream)
                 throws java.io.IOException

Description copied from class: Statistics

deserialize data from the inputStream.

Specified by:

deserialize in class Statistics<java.lang.Long>

Parameters:

inputStream - input stream

Throws:

java.io.IOException - exception when operating stream

deserialize

public void deserialize(java.nio.ByteBuffer byteBuffer)

Specified by:

deserialize in class Statistics<java.lang.Long>