org.apache.ignite.internal.processors.query.stat

Class ObjectStatisticsImpl

java.lang.Object

org.apache.ignite.internal.processors.query.stat.ObjectStatisticsImpl

All Implemented Interfaces:

Cloneable, ObjectStatistics

Direct Known Subclasses:

ObjectPartitionStatisticsImpl

public class ObjectStatisticsImpl
extends Object
implements Cloneable, ObjectStatistics

All statistics by some object (table or index).

Constructor Summary

Constructors

Constructor and Description
ObjectStatisticsImpl(long rowsCnt, Map<String,ColumnStatistics> colNameToStat) Constructor.

Method Summary

Modifier and Type	Method and Description
ObjectStatisticsImpl	clone()
Map<String,ColumnStatistics>	columnsStatistics()
ColumnStatistics	columnStatistics(String colName) Get column statistics.
boolean	equals(Object o)
int	hashCode()
long	rowCount()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectStatisticsImpl

public ObjectStatisticsImpl(long rowsCnt,
                            Map<String,ColumnStatistics> colNameToStat)

Constructor.

Parameters:

rowsCnt - Total rows count.

colNameToStat - Column names to statistics map.

Method Detail

rowCount

public long rowCount()

Returns:

Object rows count.

columnStatistics

public ColumnStatistics columnStatistics(String colName)

Get column statistics.

Parameters:

colName - Column name.

Returns:

Column statistics or null if there are no statistics for specified column.

columnsStatistics

public Map<String,ColumnStatistics> columnsStatistics()

Returns:

Column statistics map.

clone

public ObjectStatisticsImpl clone()

Overrides:

clone in class Object

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