Re: [cdi-dev] Getting injection point from Bean#create

The simplest thing you can do is: Bean<InjectionPoint> bean = (Bean<InjectionPoint>) manager.resolve(manager.getBeans(InjectionPoint.class)); InjectionPoint ip = (InjectionPoint) manager.getReference(bean, InjectionPoint.class, manager.createCreationalContext(bean));

On 11/19/2014 05:06 PM, arjan tijms wrote: > Hi, > > In a producer method it's trivial to get access to an InjectionPoint > instance representing the point where the value produced by the > producer will be injected. > > When registering a Bean manually from an extension using > AfterBeanDiscovery#addBean, this is not immediately obvious. > > After some fumbling with the CDI APIs I came up with the following > code that seems to work on both Weld and OWB (didn't test CanDI yet). > > It uses a small "dummy" class, which is used to grab an InjectionPoint > off: > > In a Bean: > > public Object create(CreationalContext<Object> creationalContext) { > > InjectionPoint injectionPoint = (InjectionPoint) > beanManager.getInjectableReference( > resolve(beanManager, > InjectionPointGenerator.class).getInjectionPoints().iterator().next(), > creationalContext > ); > > With InjectionPointGenerator being the following class: > > public class InjectionPointGenerator { > @Inject > private InjectionPoint injectionPoint; > } > > And resolve being the following method: > > public static <T> Bean<T> resolve(BeanManager beanManager, Class<T> > beanClass) { > Set<Bean<?>> beans = beanManager.getBeans(beanClass); > > for (Bean<?> bean : beans) { > if (bean.getBeanClass() == beanClass) { > return (Bean<T>) > beanManager.resolve(Collections.<Bean<?>>singleton(bean)); > } > } > > return (Bean<T>) beanManager.resolve(beans); > } > > As mentioned, while this seems to work, I wonder if it's the best > approach. > > Kind regards, > Arjan > _______________________________________________ > cdi-dev mailing list > cdi-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/cdi-dev > > Note that for all code provided on this list, the provider licenses the > code under the Apache License, Version 2 ( > http://www.apache.org/licenses/LICENSE-2.0.html). For all other ideas > provided on this list, the provider waives all patent and other > intellectual property rights inherent in such information. >