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CDI 2.0: Register Beans dynamicially

Register Beans dynamicially

Before CDI 2.0 register a bean dynamicially 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.

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