org.apache.drill.metastore.statistics

Class BaseStatisticsKind<T>

java.lang.Object

org.apache.drill.metastore.statistics.BaseStatisticsKind<T>

All Implemented Interfaces:

StatisticsKind<T>

Direct Known Subclasses:

ColumnStatisticsKind, TableStatisticsKind

public class BaseStatisticsKind<T>
extends Object
implements StatisticsKind<T>

Implementation of StatisticsKind which contain base table statistics kinds with implemented mergeStatistics() method.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	exact
protected String	statisticKey

Constructor Summary

Constructors

Constructor and Description
BaseStatisticsKind(String statisticKey, boolean exact)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	getName() Returns name which corresponds to the statistics.
int	hashCode()
boolean	isExact()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

statisticKey

protected final String statisticKey

exact

protected final boolean exact

Constructor Detail

BaseStatisticsKind

public BaseStatisticsKind(String statisticKey,
                          boolean exact)

Method Detail

getName

public String getName()

Description copied from interface: StatisticsKind

Returns name which corresponds to the statistics.

Specified by:

getName in interface StatisticsKind<T>

Returns:

statistic kind name

isExact

public boolean isExact()

Specified by:

isExact in interface StatisticsKind<T>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object