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 and Description
static class	DoubleMeanHolder.Serializer

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
DoubleMeanHolder(double sum, long count)

Method Summary

Modifier and Type	Method and 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()
static void	update(ByteBuffer buf, int position, double sum)
static void	update(ByteBuffer buf, int position, DoubleMeanHolder other)
void	update(double sum)
DoubleMeanHolder	update(DoubleMeanHolder other)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_INTERMEDIATE_SIZE

public static final int MAX_INTERMEDIATE_SIZE

See Also:

Constant Field Values

COMPARATOR

public static final Comparator<DoubleMeanHolder> COMPARATOR

Constructor Detail

DoubleMeanHolder

public DoubleMeanHolder(double sum,
                        long count)

Method Detail

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)