On 26 Jun 2012, at 13:53, André Salvati wrote:
> I'm trying to use Guice to instantiate my Objectify DAOs. My hierarchy is the
> following:
>
> public class EmpresaDao extends ObjectifyDao<Empresa> { ... }
>
> public class ObjectifyDao<T> extends DAOBase { ... }
>
> When I use "new EmpresaDao()", getClass().getGenericSuperclass() gives me:
>
> [INFO] superclass ->
> br.com.xxxxx.server.service.ObjectifyDao<br.com.xxxxx.domain.Empresa>
>
> When I use "injector.getInstance(EmpresaDao.class)",
> getClass().getGenericSuperclass() gives me:
>
> [INFO] superclass -> class br.com.xxxx.server.service.EmpresaDao
>
> Obviously, I want to let Guice instantiate my objects with DI.
>
> Can someone explain why this is happen?
What does instance.getClass() show when using the injector? If the name
contains "ByGuice" then Guice has created an intermediate proxy, which is why
the superclass differs.
Guice creates proxies to handle method interception (AOP) or to break circular
dependencies - you could try turning off the circular dependency proxy feature
in your module:
http://google-guice.googlecode.com/git/javadoc/com/google/inject/Binder.html#disableCircularProxies()
or alternatively if you don't need AOP then you can use the "no_aop" flavour of
Guice.
> Is there any way (instantiating with Guice) to get the same superclass as
> with new().
>
> Thanks.
>
>
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