README.md

Identifier

This tool helps you give meaning to ID in ours Domain

Motivation

Wouldn't it be nice if the identifier (ex.1,2,3,4,5,6,7,8) had meaning?

I thought that the identifiers of commonly used entities could also be given meaning.

Default LongValueGenerator inspired by the snowflake project which Twitter Developed

Goal

• Identifier can make each aggregate ID on Micro Services can be meaningful.
• more easily distinguish ID we commonly used by Identifier

UseCase

• No more need Database Auto Increment!
• to give an ID to entity of domain on microservices.

Setup

implementation 'com.github.LenKIM.identifier:identifier-generator:0.0.36'

if you want to use in spring-boot-starter

implementation 'com.github.LenKIM.identifier:identifier-spring-boot-starter:0.0.36'

How to use

// build.gradle
	allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}

long expectedAggregateId=10L;
LongValueGenerator sut = new SnowFlakeLongValueGenerator(expectedAggregateId);

long generatedId = sut.gen();

when using springboot

// application.yml
id-generator:
  aggregateId: 1L

@Component
class FooComponent {

    private final LongValueGenerator generator;

    Foo(LongValueGenerator generator) {
        this.generator = generator;
    }

    public Long getId() {
        Long generatedId = generator.gen();
        return generatedId;
    }
}