io.druid.query.aggregation

Class Histogram

java.lang.Object

io.druid.query.aggregation.Histogram

public class Histogram
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
long[]	bins
float[]	breaks
long	count
float	max
float	min

Constructor Summary

Constructors

Constructor and Description
Histogram(float[] breaks)
Histogram(float[] breaks, long[] bins, float min, float max)

Method Summary

Methods

Modifier and Type	Method and Description
HistogramVisual	asVisual() Returns a visual representation of a histogram object.
boolean	equals(Object o)
Histogram	fold(Histogram h)
static Histogram	fromBytes(byte[] bytes)
static Histogram	fromBytes(ByteBuffer buf)
int	hashCode()
void	offer(float d)
byte[]	toBytes()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

breaks

public float[] breaks

bins

public long[] bins

count

public transient long count

min

public float min

max

public float max

Constructor Detail

Histogram

public Histogram(float[] breaks)

Histogram

public Histogram(float[] breaks,
         long[] bins,
         float min,
         float max)

Method Detail

offer

public void offer(float d)

fold

public Histogram fold(Histogram h)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toBytes

public byte[] toBytes()

asVisual

public HistogramVisual asVisual()

Returns a visual representation of a histogram object. Initially returns an array of just the min. and max. values but can also support the addition of quantiles.

Returns:

a visual representation of this histogram

fromBytes

public static Histogram fromBytes(byte[] bytes)

fromBytes

public static Histogram fromBytes(ByteBuffer buf)

toString

public String toString()

Overrides:

toString in class Object