org.apache.drill.exec.store.mapr.db

Class MapRDBCost

java.lang.Object

org.apache.drill.exec.store.mapr.db.MapRDBCost

All Implemented Interfaces:

PluginCost

public class MapRDBCost
extends Object
implements PluginCost

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.exec.planner.cost.PluginCost

PluginCost.CheckValid<T>, PluginCost.greaterThanEquals

Field Summary

Fields inherited from interface org.apache.drill.exec.planner.cost.PluginCost

logger

Constructor Summary

Constructors

Constructor and Description
MapRDBCost(DrillConfig config, String mediaType)

Method Summary

Modifier and Type	Method and Description
int	getAverageColumnSize(GroupScan scan)
int	getBlockSize(GroupScan scan)
int	getRandomBlockReadCost(GroupScan scan)
int	getSequentialBlockReadCost(GroupScan scan)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapRDBCost

public MapRDBCost(DrillConfig config,
                  String mediaType)

Method Detail

getAverageColumnSize

public int getAverageColumnSize(GroupScan scan)

Specified by:

getAverageColumnSize in interface PluginCost

Returns:

the average column size in bytes

getBlockSize

public int getBlockSize(GroupScan scan)

Specified by:

getBlockSize in interface PluginCost

Returns:

the block size in bytes

getSequentialBlockReadCost

public int getSequentialBlockReadCost(GroupScan scan)

Specified by:

getSequentialBlockReadCost in interface PluginCost

Returns:

the sequential block read cost

getRandomBlockReadCost

public int getRandomBlockReadCost(GroupScan scan)

Specified by:

getRandomBlockReadCost in interface PluginCost

Returns:

the random block read cost