Package org.apache.spark.util.sketch

Enum Class CountMinSketch.Version

Object

Enum<CountMinSketch.Version>

org.apache.spark.util.sketch.CountMinSketch.Version

All Implemented Interfaces:

Serializable, Comparable<CountMinSketch.Version>, Constable

Enclosing class:

CountMinSketch

public static enum CountMinSketch.Version
extends Enum<CountMinSketch.Version>

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
V1	CountMinSketch binary format version 1.

Method Summary

Modifier and Type	Method	Description
static CountMinSketch.Version	valueOf(String name)	Returns the enum constant of this class with the specified name.
static CountMinSketch.Version[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, describeConstable, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

V1

public static final CountMinSketch.Version V1

CountMinSketch binary format version 1. All values written in big-endian order:

• Version number, always 1 (32 bit)
• Total count of added items (64 bit)
• Depth (32 bit)
• Width (32 bit)
• Hash functions (depth * 64 bit)
• Count table
  • Row 0 (width * 64 bit)
  • Row 1 (width * 64 bit)
  • ...
  • Row depth - 1 (width * 64 bit)

Method Details

values

public static CountMinSketch.Version[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static CountMinSketch.Version valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null