org.apache.sysds.runtime.compress.estim

Class CompressedSizeInfo

java.lang.Object

org.apache.sysds.runtime.compress.estim.CompressedSizeInfo

public class CompressedSizeInfo
extends Object

A helper reusable object for maintaining information about estimated compression

Field Summary

Fields

Modifier and Type	Field and Description
List<CompressedSizeInfoColGroup>	compressionInfo

Constructor Summary

Constructors

Constructor and Description
CompressedSizeInfo(List<CompressedSizeInfoColGroup> compressionInfo)

Method Summary

Modifier and Type	Method and Description
String	getEstimatedDistinct()
CompressedSizeInfoColGroup	getGroupInfo(int index)
List<CompressedSizeInfoColGroup>	getInfo()
String	getNrColumnsString()
int	getNumberColGroups()
void	joinEmpty(int nRows)
long	memoryEstimate() Method for returning the calculated memory usage from this specific compression plan.
void	setInfo(List<CompressedSizeInfoColGroup> info)
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

compressionInfo

public List<CompressedSizeInfoColGroup> compressionInfo

Constructor Detail

CompressedSizeInfo

public CompressedSizeInfo(List<CompressedSizeInfoColGroup> compressionInfo)

Method Detail

getGroupInfo

public CompressedSizeInfoColGroup getGroupInfo(int index)

getInfo

public List<CompressedSizeInfoColGroup> getInfo()

setInfo

public void setInfo(List<CompressedSizeInfoColGroup> info)

joinEmpty

public void joinEmpty(int nRows)

memoryEstimate

public long memoryEstimate()

Method for returning the calculated memory usage from this specific compression plan.

Returns:

The in memory estimate as a long counting bytes.

getNumberColGroups

public int getNumberColGroups()

toString

public String toString()

Overrides:

toString in class Object

getEstimatedDistinct

public String getEstimatedDistinct()

getNrColumnsString

public String getNrColumnsString()