https://github.com/dafexdev/java-dpi-jsr330

A small example of how to use dependency injection in Java using the jakarta.inject API and the Weld SE implementation.
https://github.com/dafexdev/java-dpi-jsr330

dependency-injection design-patterns jakartaee java jsr330 maven weld-se

Last synced: 16 days ago
JSON representation

A small example of how to use dependency injection in Java using the jakarta.inject API and the Weld SE implementation.

• Host: GitHub
• URL: https://github.com/dafexdev/java-dpi-jsr330
• Owner: dafexDev
• Created: 2024-07-23T22:08:57.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-07-24T01:38:43.000Z (5 months ago)
• Last Synced: 2024-11-19T12:59:36.477Z (about 1 month ago)
• Topics: dependency-injection, design-patterns, jakartaee, java, jsr330, maven, weld-se
• Language: Java
• Homepage:
• Size: 22.5 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# Java Dependency Injection JSR-330

[![Java](https://img.shields.io/badge/Java-ED8B00?style=for-the-badge&logo=openjdk&logoColor=white)](https://www.java.com/es/)

[![Maven](https://img.shields.io/badge/Apache_Maven-C71A36?style=for-the-badge&logo=apachemaven&logoColor=white)](https://maven.apache.org/)

A small example of how to use dependency injection in Java using the `jakarta.inject` API and the [**Weld SE**](https://weld.cdi-spec.org/) implementation.

[**Weld SE**](https://weld.cdi-spec.org/) is an implementation of CDI (Context and Dependency Injection) in Java SE. The CDI specification is based on JSR-330 for dependency injection, which allows injecting dependencies into objects without the need to explicitly create instances in the code.

## Components

![](./assets/java-dpi-jsr330.png)

- **`HelloWorldPrinter`:** Interface that defines the `print` method to print a Hello World

- **`HelloWorldPrinterCapitalize`:** Implementation of `HelloWorldPrinter` that prints Hello World in capitalized format.

- **`HelloWorldPrinterUppercase`:** Implementation of `HelloWorldPrinter` that prints Hello World in uppercase format.

- **`HelloWorldClient`:** Client that injects all implementations of `HelloWorldPrinter` and calls the `print` method of each.