Ef4j

About the project

Ef4j (Event Framework For Java) - Simple and lightweight event framework

Benchmarks

TODO

Example

class MyListener { 
  @EventHandler
  public void listen(MyEvent event) {
    System.out.println(event.getMessage());
  }
}

class MyEvent extends Event {
  private final String message;
	
  public MyEvent(String message) {
    this.message = message;
  }
    
  public String getMessage() {
    return message;
  }
}

EventBus bus = new ConcurrentEventBus();

// register listener
bus.subscribe(new MyListener());

// send event to all listeners
bus.publish(new MyEvent("Hello world!"));

You can to specify the EventNamespace to EventBus#subscribe and then you will be able to remove all listeners by that EventNamespace using EventBus#unsubscribeAll(EventNamespace)

Also you can set EventHandler's priority, just use @EventHandler(EventPriority.<...>)

There are 6 types of priority:

• LOWEST will be executed first
• LOW will be executed after LOWEST
• NORMAL will be executed after LOW (default)
• HIGH will be executed after NORMAL
• HIGHEST will be executed after HIGH
• MONITOR will be executed last

Add as dependency

Maven

<dependencies>
    <dependency>
        <groupId>com.github.lero4ka16</groupId>
        <artifactId>ef4j</artifactId>
        <version>1.1.0</version>
    </dependency>
</dependencies>

Gradle

dependencies {
    implementation 'com.github.lero4ka16:ef4j:1.1.0'
}

Build the project

1. Execute ./gradlew build
2. Output file located at build/libs/ef4j.jar

Contact

Vkontakte, Telegram

Post Scriptum

I will be very glad if someone can help me with development.