org.dromara.hutool.core.codec.hash

Class KetamaHash

java.lang.Object

org.dromara.hutool.core.codec.hash.KetamaHash

All Implemented Interfaces:

Encoder<byte[],Number>, Hash32<byte[]>, Hash64<byte[]>

public class KetamaHash
extends Object
implements Hash64<byte[]>, Hash32<byte[]>

Ketama算法，用于在一致性Hash中快速定位服务器位置

Since:

5.7.20

Author:

looly

Constructor Summary

Constructors

Constructor and Description
KetamaHash()

Method Summary

Modifier and Type	Method and Description
Number	encode(byte[] key) 执行编码
int	hash32(byte[] key) 计算Hash值
long	hash64(byte[] key) 计算Hash值

Methods inherited from class java.lang.Object

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

Constructor Detail

KetamaHash

public KetamaHash()

Method Detail

hash64

public long hash64(byte[] key)

Description copied from interface: Hash64

计算Hash值

Specified by:

hash64 in interface Hash64<byte[]>

Parameters:

key - 对象

Returns:

hash

hash32

public int hash32(byte[] key)

Description copied from interface: Hash32

计算Hash值

Specified by:

hash32 in interface Hash32<byte[]>

Parameters:

key - 对象

Returns:

hash

encode

public Number encode(byte[] key)

Description copied from interface: Encoder

执行编码

Specified by:

encode in interface Encoder<byte[],Number>

Specified by:

encode in interface Hash32<byte[]>

Specified by:

encode in interface Hash64<byte[]>

Parameters:

key - 被编码的数据

Returns:

编码后的数据