com.mybatisflex.core.keygen.impl

Class ULIDKeyGenerator

java.lang.Object

com.mybatisflex.core.keygen.impl.ULIDKeyGenerator

All Implemented Interfaces:

IKeyGenerator

public class ULIDKeyGenerator
extends Object
implements IKeyGenerator

ULID: 对比UUID的优势在于可排序性和性能。

特点： 1、保证 id 生成的顺序为时间顺序，越往后生成的 ID 值越大； 2、可以按照生成的时间进行排序，而不需要全局协调； 3、生成速度快；

参考：Sequence

Constructor Summary

Constructors

Constructor and Description
ULIDKeyGenerator()

Method Summary

Modifier and Type	Method and Description
Object	generate(Object entity, String keyColumn)
String	nextId() 生成一个 ULID
String	nextMonotonicId() 生成一个严格单调的 ULID

Methods inherited from class java.lang.Object

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

Constructor Detail

ULIDKeyGenerator

public ULIDKeyGenerator()

Method Detail

generate

public Object generate(Object entity,
                       String keyColumn)

Specified by:

generate in interface IKeyGenerator

nextId

public String nextId()

生成一个 ULID

Returns:

ULID

nextMonotonicId

public String nextMonotonicId()

生成一个严格单调的 ULID

Returns:

ULID