Programatic injection inside an interceptor

[tsweeney56]

In seam 2 injection into an around invoke interceptor was simple using the Contexts.getSomeContext.get(Name).  Using CDI the programmatic way of injecting still requires an injection of an instance object.  In Seam 3/CDI is there any idea of a Contexts object to access the contexts to avoid the need for any @Inject?

[lightguard]

You can do it, but it's messy :) If you still want the code let us know. Also curious as to why you'd want to do it this way.

[tsweeney56]

I am converting a seam 2 app to seam 3, there are a few cases that we intercept method calls to cache the result or move along a state machine.

I would love the code regardless how messy it is.

[lightguard]

If you're doing interception, why not write interceptors and use injection that way?

Creating an interceptor and doing injection into the interceptor would be a much better solution though.

It's not perfectly documented, but you can use this method:

@SuppressWarnings("unchecked")
public static <T> T getContextualInstance(final BeanManager manager, final Class<T> type)
{
   T result = null;
   Bean<T> bean = (Bean<T>) manager.resolve(manager.getBeans(type));
   if (bean != null)
   {
      CreationalContext<T> context = manager.createCreationalContext(bean);
      if (context != null)
      {
         result = (T) manager.getReference(bean, type, context);
      }
   }
   return result;
}