org.apache.hadoop.hive.ql.parse

Class SplitSample

java.lang.Object

org.apache.hadoop.hive.ql.parse.SplitSample

All Implemented Interfaces:

Serializable

public class SplitSample
extends Object
implements Serializable

This class stores all the information specified in the TABLESAMPLE(...) clause. e.g. for the clause "FROM t TABLESAMPLE(1 PERCENT) it will store the percentage 1, and the seed number is to determine which 1%. Currently it is from the conf hive.sample.seednumber

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SplitSample()
SplitSample(double percent, int seedNum)
SplitSample(int rowCount)
SplitSample(long totalLength, int seedNum)

Method Summary

Methods

Modifier and Type	Method and Description
Double	getPercent()
Integer	getRowCount()
int	getSeedNum()
long	getTargetSize(long totalSize)
Long	getTotalLength()
void	setPercent(Double percent)
void	setRowCount(Integer rowCount)
void	setSeedNum(int seedNum)
void	setTotalLength(Long totalLength)

Methods inherited from class java.lang.Object

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

Constructor Detail

SplitSample

public SplitSample()

SplitSample

public SplitSample(double percent,
           int seedNum)

SplitSample

public SplitSample(long totalLength,
           int seedNum)

SplitSample

public SplitSample(int rowCount)

Method Detail

getPercent

public Double getPercent()

setPercent

public void setPercent(Double percent)

getTotalLength

public Long getTotalLength()

setTotalLength

public void setTotalLength(Long totalLength)

getRowCount

public Integer getRowCount()

setRowCount

public void setRowCount(Integer rowCount)

getSeedNum

public int getSeedNum()

setSeedNum

public void setSeedNum(int seedNum)

getTargetSize

public long getTargetSize(long totalSize)