Spring wiring conditional to an environment

Question

With Spring wiring, if I have multiple implementations of an interface, I can use @Qualifier to specify which one I want.

E.g., assuming that I have a

Answer 1

Spring 3.1 introduced environment profiles: http://blog.springsource.com/2011/02/11/spring-framework-3-1-m1-released/

I personally do not like Qualifiers and using them the way you proposed in the code actually couples to the implementation rather than decouple. You can use the @Autowired element like Jason proposed, but couple that with the bean profiles like so:

and then when you create the environment you specify a profile:

dispatcher org.springframework.web.servlet.DispatcherServlet spring.profiles.active production