with CDI, you can do something like this:
@Inject @Active
UserFactory userFactory;
The code means: I want an userFactory that returns only active users.
What is the equivalent way of Spring? I did my research but the nearest I found was Spring profiles. It looks like:
@Autowired @Profiles("active")
UserFactory userFactory;
The problem is only one profile can be actived at the same time, correct? If so, it looks more like @Alternative in CDI to me and it doesn't solve the problem I mentioned.
Spring can also use qualifiers (defined with @Qualifier). Probably the @Active is already a @Qualifier and as such can be used to determine which one to use.
@Component
@Active
public ActiveUserFactory implements UserFactory { ... }
Then in the place you want to use this one add the @Active qualifier again.
@Autowired
@Active
private UserFactory userFactory;
If you don't want to create an annotation you could also use a plain @Qualifer("active") for instance.
For a more elaborate explanation you might want to check the reference guide.