/*

<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">

    <alternatives>

        <class>Foo$Bar</class>

    </alternatives>

</beans>

 */

@ApplicationScoped

public class Foo {

    public static void main(String[] args) {

        WeldContainer weld = new Weld().initialize();

        weld.event().select(MyEvent.class).fire(new MyEvent());

    }

    static class MyEvent {

    }

    @Qualifier

    @Target({FIELD, PARAMETER})

    @Retention(RUNTIME)

    public @interface SomeQualifier {

    }

    @PostConstruct

    void init() {

        System.out.println("INIT FOO");

    }

    void onEvent(@Observes MyEvent e) {

        System.out.println("EVENT FOO");

    }

    @Alternative

    @Specializes

    static public class Bar extends Foo {

        @Override

        void init() {

            System.out.println("INIT BAR");

        }

        @Override

        void onEvent(@Observes @SomeQualifier MyEvent e) {

            System.out.println("EVENT BAR");

        }

    }

}