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SnowFlake-IdGenerator/Go/source/idgen/IdGeneratorOptions.go
2021-06-28 17:22:45 +08:00

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/*
* 版权属于yitter(yitter@126.com)
* 代码编辑guoyahao
* 代码修订yitter
* 开源地址https://github.com/yitter/idgenerator
*/
package idgen
type IdGeneratorOptions struct {
Method uint16 // 雪花计算方法,1-漂移算法|2-传统算法默认1
BaseTime int64 // 基础时间ms单位不能超过当前系统时间
WorkerId uint16 // 机器码,必须由外部设定,最大值 2^WorkerIdBitLength-1
WorkerIdBitLength byte // 机器码位长默认值6取值范围 [1, 15](要求:序列数位长+机器码位长不超过22
SeqBitLength byte // 序列数位长默认值6取值范围 [3, 21](要求:序列数位长+机器码位长不超过22
MaxSeqNumber uint32 // 最大序列数(含),设置范围 [MinSeqNumber, 2^SeqBitLength-1]默认值0表示最大序列数取最大值2^SeqBitLength-1]
MinSeqNumber uint32 // 最小序列数默认值5取值范围 [5, MaxSeqNumber]每毫秒的前5个序列数对应编号0-4是保留位其中1-4是时间回拨相应预留位0是手工新值预留位
TopOverCostCount uint32 // 最大漂移次数默认2000推荐范围500-10000与计算能力有关
}
func NewIdGeneratorOptions(workerId uint16) *IdGeneratorOptions {
return &IdGeneratorOptions{
Method: 1,
WorkerId: workerId,
BaseTime: 1582136402000,
WorkerIdBitLength: 6,
SeqBitLength: 6,
MaxSeqNumber: 0,
MinSeqNumber: 5,
TopOverCostCount: 2000,
}
}