Package org.apache.druid.query.aggregation.mean

Class DoubleMeanHolder

java.lang.Object

org.apache.druid.query.aggregation.mean.DoubleMeanHolder

public class DoubleMeanHolder
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DoubleMeanHolder.Serializer

Field Summary

Fields

Modifier and Type	Field	Description
static final Comparator<DoubleMeanHolder>	COMPARATOR
static final int	MAX_INTERMEDIATE_SIZE

Constructor Summary

Constructors

Constructor	Description
DoubleMeanHolder(double sum, long count)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static DoubleMeanHolder	fromBytes(byte[] data)
static DoubleMeanHolder	get(ByteBuffer buf, int position)
int	hashCode()
static void	init(ByteBuffer buf, int position)
double	mean()
byte[]	toBytes()
void	update(double sum)
static void	update(ByteBuffer buf, int position, double sum)
static void	update(ByteBuffer buf, int position, DoubleMeanHolder other)
DoubleMeanHolder	update(DoubleMeanHolder other)

Methods inherited from class java.lang.Object

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

Field Details

MAX_INTERMEDIATE_SIZE

public static final int MAX_INTERMEDIATE_SIZE

See Also:

• Constant Field Values

COMPARATOR

public static final Comparator<DoubleMeanHolder> COMPARATOR

Constructor Details

DoubleMeanHolder

public DoubleMeanHolder(double sum,
 long count)

Method Details

update

public void update(double sum)

update

public DoubleMeanHolder update(DoubleMeanHolder other)

mean

public double mean()

toBytes

public byte[] toBytes()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

fromBytes

public static DoubleMeanHolder fromBytes(byte[] data)

init

public static void init(ByteBuffer buf,
 int position)

update

public static void update(ByteBuffer buf,
 int position,
 double sum)

update

public static void update(ByteBuffer buf,
 int position,
 DoubleMeanHolder other)

get

public static DoubleMeanHolder get(ByteBuffer buf,
 int position)