Register Beans dynamicially

Before CDI 2.0 register a bean dynamically is a little complex. CDI 2.0 simple the work.

public void addABean(@Observes AfterBeanDiscovery event) {
    // get an instance of BeanConfigurator
    event.addBean()
            // set the desired data
            .types(Greeter.class)
            .scope(ApplicationScoped.class)
            .addQualifier(Default.Literal.INSTANCE)
            //.addQualifier(Custom.CustomLiteral.INSTANCE);
            //finally, add a callback to tell CDI how to instantiate this bean
            .produceWith(obj -> new Greeter());
}

AfterBeanDiscovery event add addBean method to register a bean manually.

You can check if the bean is existed in CDI container.

Set<Bean<?>> greeters = CDI.current().getBeanManager().getBeans(Greeter.class);
assertTrue(greeters.size() == 1);
assertNotNull(greeter);

Grab the source codes from my GitHub account, and have a try.