org.voovan.tools

Class UniqueId

java.lang.Object

org.voovan.tools.UniqueId

public class UniqueId
extends Object

高速ID生成器 参考 snowflake 算法快速生成 ID 在 2109-05-15 15:35:11:103 可 保证无重复

Constructor Summary

Constructors

Constructor and Description
UniqueId() 构造函数
UniqueId(int signId) 构造函数
UniqueId(int signId, int step) 构造函数

Method Summary

Modifier and Type	Method and Description
static long	adjust(long id, Integer adjustMills, Integer sequence)
static long	adjust(String uniqueId, Integer adjustMills, Integer sequence)
static long	generateId(long timeMills, int signId, int sequence) 生成带顺序的 ID 序列
static Long	getMillis(Long uniqueId)
static Long	getMillis(String uniqueId)
long	getNumber(Long timeMills) 获取指定时间的 id
static Integer	getSequence(Long uniqueId)
static Integer	getSequence(String uniqueId)
static Integer	getSignId(Long uniqueId)
static Integer	getSignId(String uniqueId)
String	getString(Long timeMills) 获取指定时间的 id
long	nextNumber() 获取下一个 id
String	nextString() 获取下一个 id

Methods inherited from class java.lang.Object

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

Constructor Detail

UniqueId

public UniqueId()

构造函数

UniqueId

public UniqueId(int signId)

构造函数

Parameters:

signId - 标识 ID

UniqueId

public UniqueId(int signId,
                int step)

构造函数

Parameters:

signId - 标识 ID

step - 每次自增的步长

Method Detail

nextNumber

public long nextNumber()

获取下一个 id

Returns:

返回 id

nextString

public String nextString()

获取下一个 id

Returns:

返回 id

generateId

public static long generateId(long timeMills,
                              int signId,
                              int sequence)

生成带顺序的 ID 序列

Parameters:

timeMills - 时间戳

signId - 种子id

sequence - 序号

Returns:

id

getNumber

public long getNumber(Long timeMills)

获取指定时间的 id

Parameters:

timeMills - 指定的时间, 毫秒

Returns:

返回 id

getString

public String getString(Long timeMills)

获取指定时间的 id

Parameters:

timeMills - 指定的时间, 毫秒

Returns:

返回 id

getMillis

public static Long getMillis(Long uniqueId)

getMillis

public static Long getMillis(String uniqueId)

getSignId

public static Integer getSignId(Long uniqueId)

getSignId

public static Integer getSignId(String uniqueId)

getSequence

public static Integer getSequence(Long uniqueId)

getSequence

public static Integer getSequence(String uniqueId)

adjust

public static long adjust(long id,
                          Integer adjustMills,
                          Integer sequence)

adjust

public static long adjust(String uniqueId,
                          Integer adjustMills,
                          Integer sequence)