org.ishugaliy.allgood.consistent.hash.hasher

Enum DefaultHasher

java.lang.Object

java.lang.Enum<DefaultHasher>

org.ishugaliy.allgood.consistent.hash.hasher.DefaultHasher

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<DefaultHasher>, Hasher

public enum DefaultHasher
extends java.lang.Enum<DefaultHasher>
implements Hasher

List of default hash functions.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CITY_HASH
FARM_HASH
METRO_HASH
MURMUR_3
WY_HASH
XX_HASH

Method Summary

Modifier and Type	Method and Description
long	hash(java.lang.String key, int seed) Calculate hash of provided key with seed (salt)
static DefaultHasher	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static DefaultHasher[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

MURMUR_3

public static final DefaultHasher MURMUR_3

See Also:

Murmur3 Hash Docs

CITY_HASH

public static final DefaultHasher CITY_HASH

See Also:

City Hash Docs

FARM_HASH

public static final DefaultHasher FARM_HASH

See Also:

Farm Hash Docs

METRO_HASH

public static final DefaultHasher METRO_HASH

See Also:

Metro Hash Docs

WY_HASH

public static final DefaultHasher WY_HASH

See Also:

wyHash Docs

XX_HASH

public static final DefaultHasher XX_HASH

See Also:

xxHash Docs

Method Detail

values

public static DefaultHasher[] 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 (DefaultHasher c : DefaultHasher.values())
    System.out.println(c);

Returns:

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

valueOf

public static DefaultHasher valueOf(java.lang.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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

hash

public long hash(java.lang.String key,
                 int seed)

Description copied from interface: Hasher

Calculate hash of provided key with seed (salt)

Specified by:

hash in interface Hasher

Parameters:

key - the key to be hashed

seed - the seed (salt)

Returns:

calculated hash.