Okaeri Injector

Probably the most basic and simplest DI possible with just ~15kB in size. Part of the okaeri-platform.

Installation

Maven

Add repository to the repositories section:

<repository>
    <id>okaeri-repo</id>
    <url>https://storehouse.okaeri.eu/repository/maven-public/</url>
</repository>

Add dependency to the dependencies section:

<dependency>
  <groupId>eu.okaeri</groupId>
  <artifactId>okaeri-injector</artifactId>
  <version>2.1.0</version>
</dependency>

Gradle

Add repository to the repositories section:

maven { url "https://storehouse.okaeri.eu/repository/maven-public/" }

Add dependency to the maven section:

implementation 'eu.okaeri:okaeri-injector:2.1.0'

Example

More complex example can be found in the tests.

public class Worker {

    @Inject
    // @Inject("byName")
    private Api api;

    @PostConstruct
    private void initialize() {
        System.out.println("running api call");
        this.api.test();
    }
}

public final class TestInjector {

    public static void main(String[] args) {

        Injector injector = OkaeriInjector.create()
                // .registerInjectable("byName", new Api())
                .registerInjectable(new Api());

        Worker worker = injector.createInstance(Worker.class);
        System.out.println(worker);
    }
}

public class Api {

    public void test() {
        System.out.println("Hello World!");
    }
}