org.apache.spark.util.sketch

Enum CountMinSketch.Version

Object

Enum<CountMinSketch.Version>

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

All Implemented Interfaces:

java.io.Serializable, Comparable<CountMinSketch.Version>

Enclosing class:

CountMinSketch

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

Enum Constant Summary

Enum Constants

Enum Constant and Description
V1 CountMinSketch binary format version 1.

Method Summary

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

Methods inherited from class Enum

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

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

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 Detail

values

public static CountMinSketch.Version[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CountMinSketch.Version c : CountMinSketch.Version.values())
    System.out.println(c);

Returns:

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

valueOf

public static CountMinSketch.Version valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name

NullPointerException - if the argument is null