/*
<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&gt;Foo$Bar</class&gt;
    </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");
        }
    }

}