Maybe I'm going about this wrong and shouldn't be using custom scopes in
the first place.
Here is what I really need to do:
When handling user web requests, the ApplicationConfiguration needs to be
looked up (it's stored in servlet context; there are many there, and the
correct one needs to be picked) and injected. That's why I use this
binding:
bind(ApplicationConfiguration.class).toProvider(ApplicationConfigurationProvider.class).in(RequestScoped.class);
However, in a non user-request environment, I already have the instance of
the ApplicationConfiguration that needs to be used. How do I tell the
injector to use that instance, instead of using the
ApplicationConfigurationProvider? I was thinking that I could tell Guice
to use one Provider for one scope and something else for another scope, but
that's apparently not how scopes work.
How can I accomplish this?
On Wednesday, February 12, 2014 11:37:42 AM UTC-6, Ryan Asleson wrote:
>
>
> I got a little further. Now within my custom scope, I'm seeding both the
> ApplicationConfiguration and the EntityManager:
>
> scope.enter();
> try
> {
> scope.seed(Key.get(ApplicationConfiguration.class), appConfig);
>
> EntityManagerFactory emf =
> injector.getInstance(Key.get(EntityManagerFactory.class,
> Names.named(appConfig.getAppCode())));
> EntityManager em = emf.createEntityManager();
>
> scope.seed(Key.get(EntityManager.class), em);
>
> //UserDao is bound with no scope, but to a provider....
> UserDao userDao = injector.getInstance(UserDao.class);
> }
> finally
> {
> scope.exit();
> }
>
> See the above. UserDao is bound to a Provider that depends on the
> Injector and ApplicationConfiguration being injected into it. I'm
> getting into UserDaoProvider, and the injector has been set, but the
> ApplicationConfiguration on which it depends is null.
>
> Since I seeded an implementation of ApplicationConfiguration, shouldn't
> that be injected into the UserDaoProvider?
>
>
>
>
>
>
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