Package icu.congee.id.generator.distributed.snowflake

Class LockFreeSnowflakeIdGenerator

java.lang.Object

icu.congee.id.generator.distributed.snowflake.LockFreeSnowflakeIdGenerator

All Implemented Interfaces:

IdGenerator

@Component
public class LockFreeSnowflakeIdGenerator
extends Object
implements IdGenerator

雪花算法ID生成器

64位ID (42位时间戳 + 10位机器ID + 12位序列号)

整体结构： - 符号位：1位，固定为0 - 时间戳：41位，精确到毫秒，可用69年 - 机器ID：10位，最多支持1024个节点 - 序列号：12位，同一毫秒内最多生成4096个ID

Constructor Summary

Constructors

Constructor	Description
LockFreeSnowflakeIdGenerator(org.redisson.api.RedissonClient redissonClient, long epoch, int timestampBits, int machineIdBits, int sequenceBits)

Method Summary

Modifier and Type	Method	Description
Long	generate()	生成下一个ID
IdType	idType()	获取ID生成器类型

Methods inherited from class java.lang.Object

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

Methods inherited from interface icu.congee.id.base.IdGenerator

generate

Constructor Details

LockFreeSnowflakeIdGenerator

public LockFreeSnowflakeIdGenerator(org.redisson.api.RedissonClient redissonClient,
 @Value("${id.generator.snowflake.epoch:1645557742000}")
 long epoch,
 @Value("${id.generator.snowflake.timestamp:41}")
 int timestampBits,
 @Value("${id.generator.snowflake.machine:10}")
 int machineIdBits,
 @Value("${id.generator.snowflake.sequence:12}")
 int sequenceBits)

Method Details

generate

public Long generate()

生成下一个ID

Specified by:

generate in interface IdGenerator

Returns:

生成的ID

Throws:

RuntimeException - 当发生时钟回拨时抛出异常

idType

public IdType idType()

获取ID生成器类型

Specified by:

idType in interface IdGenerator

Returns:

Snowflake类型