Welcome to the world of Jimmer, a game-changing Object Relational Mapping (ORM) framework meticulously designed for both Java and Kotlin developers. In this guide, we will delve into the classic features, new advancements, and overall performance of Jimmer. Get ready to embrace the future of database interactions in your applications!
1. Classic ORM Part
1.1 Powerful Features
Jimmer comes packed with powerful ORM features that allow developers to handle database operations with ease. These features not only provide robust functionalities but also streamline the workflow.
// Example of creating a database entity in Jimmer
@Entity
class User {
@Id
private Long id;
private String name;
@ManyToOne
private Group group;
}
1.2 Ultimate Performance
Performance is at the heart of Jimmer. The framework is designed to ensure that interactions with the database are as quick and efficient as possible. With tailored optimizations, Jimmer offers a responsive experience in any application.
2. New ORM Part
The new features elevate Jimmer beyond traditional ORM tools:
- 1. DTO Language: Simplifies data transfer operations.
- 2. Comprehensive Caching Mechanism: Automates cache consistency management for enhanced performance.
- 3. Client OpenAPI and TypeScript Generation: Facilitates seamless integrations through powerful tools, including Jimmer’s unique handling of remote exceptions.
- 4. GraphQL Service Creation: Quickly spin up GraphQL services tailored to your needs.
- 5. Cross-Microservice Remote Entity Associations: Innovatively connects various services for cohesive data management.
Helpful Resources
For more information, be sure to check out Jimmer’s documentation and example projects which can be found at:
| English | |
|---|---|
| Examples | |
| English Documentation | |
| 中文文档 | |
| Discussion | Join our community for discussions and support! |
| QQ: 622853051 | |
| Video: |
Troubleshooting
If you encounter any difficulties while working with Jimmer, consider the following troubleshooting steps:
- If you’re having issues initializing your entities, check to ensure that your database connections are configured correctly.
- For caching problems, make sure that the caching layer is set up properly and inspect any cache logs for errors.
- When generating OpenAPI or TypeScript files, verify your configurations are correct and try regenerating the files.
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