Devoxx.java

public class MyBean extends Application {
    @Inject HelloService service;
    public void displayHello() {
        display( service.hello();
    }
}

public class MyBean extends Application {

    private HelloService service;

    @Inject
    public MyBean(HelloService service) {
        this.service = service;
    }

    public void displayHello() {
        display( service.hello();
    }
}

public class MyBean extends Application {

    private HelloService service;

    @Inject
    public void setService(HelloService service) {
        this.service = service;
    }

    public void displayHello() {
        display( service.hello();
    }
}

public class HelloService {
    public String hello() {
        return "Hello World!";
    }
}

public interface HelloService {
    public String hello();
}

public class FrenchHelloService {
    public String hello() {
        return "Bonjour tout le monde!";
    }
}

@French
public class FrenchHelloService {
    public String hello() {
        return "Bonjour tout le monde!";
    }
}

@English
public class EnglishHelloService {
    public String hello() {
        return "Hello World!";
    }
}

@Language(FRENCH)
public class FrenchHelloService {
    public String hello() {
        return "Bonjour tout le monde!";
    }
}

@Language(ENGLISH)
public class EnglishHelloService {
    public String hello() {
        return "Hello World!";
    }
}

@Qualifier
@Retention(RUNTIME)
@Target({FIELD, TYPE, METHOD, PARAMETER}) 
public @interface French {}

@Qualifier
@Retention(RUNTIME)
@Target({FIELD, TYPE, METHOD, PARAMETER}) 
public @interface English {}

@Qualifier
@Retention(RUNTIME)
@Target({FIELD, TYPE, METHOD, PARAMETER}) 
public @interface Language {
    Languages lang();

    public enum Languages { 
        FRENCH, ENGLISH
    }
}

public class MyBean extends Application {
    @Inject @French HelloService service;
    public void displayHello() {
        display( service.hello();
    }
}

public class MyBean extends Application {
    @Inject @English HelloService service;
    public void displayHello() {
        display( service.hello();
    }
}

public class MyBean extends Application {
    @Inject Language(ENGLISH) HelloService service;
    public void displayHello() {
        display( service.hello();
    }
}

public class MyBean extends Application {
    @Inject Language(FRENCH) HelloService service;
    public void displayHello() {
        display( service.hello();
    }
}

public class MyBean extends Application {
    @Inject Instance<HelloService> service;
    public void displayHello() {
        display( service.get().hello() );
    }
}

public class MyBean extends Application {
    @Inject Instance<HelloService> service;
    public void displayHello() {
        if (!service.isUnsatisfied()) {
            display( service.get().hello() );
        }
    }
}

public class MyBean extends Application {
    @Inject Instance<HelloService> services;
    public void displayHello() {
        for (HelloService service : services) {
            display( service.hello() );
        }
    }
}

public class MyBean extends Application {
    @Inject Instance<HelloService> services;
    public void displayHello() {
        display( 
            service.select(new AnnotationLiteral()<French> {})
                   .get() );
    }
}

@InterceptorBinding
@Target({METHOD, TYPE}) 
@Retention(RUNTIME)
public @interface Loggable {}

@Loggable @Interceptor
public class LoggingInterceptor {
    @AroundInvoke
    public Object logMethod(InvocationContext ic) throws Exception {
        System.out.println("Entering " + ic.getMethod().getName());
        try {
            return ic.proceed(); 
        } finally {
            System.out.println("Existing " + ic.getMethod().getName());
        }
    }   
}

@Loggable
public class MyBean extends Application {
    @Inject HelloService service;
    public void displayHello() {
        display( service.hello();
    }
}

@Decorator
public class HelloDecorator implements HelloService {
    @Inject @Delegate HelloService service;
    public String hello() {
        return service.hello() + "-decorated";
    }
}

@Inject Event<String> evt;
...
evt.fire("Bonjour");

@Qualifier
@Retention(RUNTIME)
@Target({FIELD, TYPE, METHOD, PARAMETER}) 
public @interface English {}

@Inject @English Event<String> evt;
...
evt.fire("Hello");

public void receiveEvt(@Observes String evt) {
    System.out.println("Reçut : " + evt);
}

public void receiveEvt(@Observes @English String evt) {
    System.out.println("Received : " + evt);
}

devoxx.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="
      http://java.sun.com/xml/ns/javaee
      http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
  <decorators>
    <class>foo.bar.HelloDecorator</class>
  </decorators>
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="
      http://java.sun.com/xml/ns/javaee
      http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">
  <interceptors>
    <class>foo.bar.LogInterceptor</class>
  </interceptors>
</beans>