SnowflakeIdWorker (admin4j-common 0.1.1 API)

java.lang.Object
- com.admin4j.common.SnowflakeIdWorker

public class SnowflakeIdWorker
extends Object

雪花算法

Field Summary

Fields
Modifier and Type	Field and Description
`private long`	`datacenterId` 数据标识 ID 部分
`private long`	`datacenterIdBits`
`private long`	`datacenterIdShift`
`private InetAddress`	`inetAddress`
`private long`	`lastTimestamp` 上次生产 ID 时间戳
`private long`	`maxDatacenterId`
`private long`	`maxWorkerId`
`private long`	`sequence` 并发控制
`private long`	`sequenceBits` 毫秒内自增位
`private long`	`sequenceMask`
`private long`	`timestampLeftShift` 时间戳左移动位
`private long`	`twepoch` 时间起始标记点，作为基准，一般取系统的最近时间（一旦确定不能变动）
`private long`	`workerId`
`private long`	`workerIdBits` 机器标识位数
`private long`	`workerIdShift`

Constructor Summary

Constructors
Constructor and Description
`SnowflakeIdWorker()`
`SnowflakeIdWorker(InetAddress inetAddress)`
`SnowflakeIdWorker(long twepoch)`
`SnowflakeIdWorker(long workerId, long datacenterId)` 有参构造器

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected long`	`getDatacenterId(long maxDatacenterId)` 数据标识id部分
`protected InetAddress`	`getInetAddress()`
`private InetAddress`	`getLocalHost()`
`protected long`	`getMaxWorkerId(long datacenterId, long maxWorkerId)` 获取 maxWorkerId
`long`	`nextId()` 获取下一个 ID
`protected long`	`tilNextMillis(long lastTimestamp)`
`protected long`	`timeGen()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - twepoch
```
private long twepoch
```
    时间起始标记点，作为基准，一般取系统的最近时间（一旦确定不能变动）
  - workerIdBits
```
private final long workerIdBits
```
    机器标识位数
    
    See Also:
    
    Constant Field Values
  - datacenterIdBits
```
private final long datacenterIdBits
```
    See Also:
    
    Constant Field Values
  - maxWorkerId
```
private final long maxWorkerId
```
    See Also:
    
    Constant Field Values
  - maxDatacenterId
```
private final long maxDatacenterId
```
    See Also:
    
    Constant Field Values
  - sequenceBits
```
private final long sequenceBits
```
    毫秒内自增位
    
    See Also:
    
    Constant Field Values
  - workerIdShift
```
private final long workerIdShift
```
    See Also:
    
    Constant Field Values
  - datacenterIdShift
```
private final long datacenterIdShift
```
    See Also:
    
    Constant Field Values
  - timestampLeftShift
```
private final long timestampLeftShift
```
    时间戳左移动位
    
    See Also:
    
    Constant Field Values
  - sequenceMask
```
private final long sequenceMask
```
    See Also:
    
    Constant Field Values
  - workerId
```
private final long workerId
```
  - datacenterId
```
private final long datacenterId
```
    数据标识 ID 部分
  - sequence
```
private long sequence
```
    并发控制
  - lastTimestamp
```
private long lastTimestamp
```
    上次生产 ID 时间戳
  - inetAddress
```
private InetAddress inetAddress
```
- Constructor Detail
  - SnowflakeIdWorker
```
public SnowflakeIdWorker()
```
  - SnowflakeIdWorker
```
public SnowflakeIdWorker(long twepoch)
```
  - SnowflakeIdWorker
```
public SnowflakeIdWorker(InetAddress inetAddress)
```
  - SnowflakeIdWorker
```
public SnowflakeIdWorker(long workerId,
                         long datacenterId)
```
    有参构造器
    
    Parameters:
    
    workerId - 工作机器 ID
    
    datacenterId - 序列号
- Method Detail
  - getLocalHost
```
private InetAddress getLocalHost()
```
  - getInetAddress
```
protected InetAddress getInetAddress()
```
    Returns:
    
    InetAddress
    
    Since:
    
    3.4.3
  - getMaxWorkerId
```
protected long getMaxWorkerId(long datacenterId,
                              long maxWorkerId)
```
    获取 maxWorkerId
  - getDatacenterId
```
protected long getDatacenterId(long maxDatacenterId)
```
    数据标识id部分
  - nextId
```
public long nextId()
```
    获取下一个 ID
    
    Returns:
    
    下一个 ID
  - tilNextMillis
```
protected long tilNextMillis(long lastTimestamp)
```
  - timeGen
```
protected long timeGen()
```

Class SnowflakeIdWorker

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

twepoch

workerIdBits

datacenterIdBits

maxWorkerId

maxDatacenterId

sequenceBits

workerIdShift

datacenterIdShift

timestampLeftShift

sequenceMask

workerId

datacenterId

sequence

lastTimestamp

inetAddress

Constructor Detail

SnowflakeIdWorker

SnowflakeIdWorker

SnowflakeIdWorker

SnowflakeIdWorker

Method Detail

getLocalHost

getInetAddress

getMaxWorkerId

getDatacenterId

nextId

tilNextMillis

timeGen