A revolutionary ORM framework for both java and kotlin.

• Immutable data model
• ORM based on immutable data model
• The ORM also provides a specialized API to speed up the development of Spring GraphQL

It allows developers to arbitrarily outline an area in the relational diagram of the database and decide which entities, relationships and even fields should be included in the area.

then consider this area as a whole

1. Query
2. Save
3. Cache(And automatically ensure data consistency)

1，Video links

English	https://www.youtube.com/watch?v=Rt5zNv0YR2E
Chinese	Global introduction: https://www.bilibili.com/video/BV1kd4y1A7K3
	Table Join Topic: https://www.bilibili.com/video/BV19t4y177PX
	Global filters and parameterized cache: https://www.bilibili.com/video/BV1Mt4y1u7fz/

2. Bechmark

• The abscissa represents the count of data objects queried from the database.
• The ordinate represents the operation count per second.

• If you want to view full benchmark report, click here please.

• If you want to run the benchmark, run the project under the sub directory benchmark please.

3. Documentation

The project provides complete documentation.

Please view documentation(Both english & chinese) to know everything.

4. Examples:

This framework provides three examples

1. Java Examples

   • example/java/jimmer-core: How to use immutable objects
   • example/java/jimmer-sql: How to use ORM framework
   • example/java/jimmer-sql-graphql: How to quickly develop Spring GraphQL services based on jimmer.

2. Kotlin Examples

   • example/kotlin/jimmer-core-kt: How to use immutable objects
   • example/kotlin/jimmer-sql-kt: How to use ORM framework
   • example/kotlin/jimmer-sql-graphql-kt: How to quickly develop Spring GraphQL services based on jimmer.

5. Discuss

Language	Entry point
English	https://discord.com/channels/1016206034827743283/
Chinese

6. Ecosystem

Jimmer only focuses on the ORM itself, and does not provide auxiliary tools, such as producing entity interface definitions based on database structures.

Enthusiastic people have contributed related tools. So far, the projects included are:

Project type	Supported languages	Project link
Intellij plugin	Java&Kotlin	https://github.com/ClearPlume/jimmer-generator
Maven plugin	Java	https://github.com/TokgoRonin/code-generator-jimmer

Everyone is welcome to actively contribute related tools, and submit PR for me to include them in the list