Spring MVC Generic Controller

Question

I have a session scoped bean in my @Controller: it is called SessionPreferences and I hope its name will explain what it does :-)

Almost any of my controllers make use of it, so I easily inject it in each controller via @Autowired.

I wanna go deeper so.... how can I avoid this duplication? Can I have a "father" controller in my application, in order to store all shared references to services, other beans and so on?

What do you mean by "go deeper"?

skaffman
– skaffman

2012-03-09 15:17:26 +00:00
Commented Mar 9, 2012 at 15:17 — skaffman
– skaffman, Commented Mar 9, 2012 at 15:17

dardo · Accepted Answer · 2012-03-09 15:05:45Z

1

Maybe an abstract class that the controllers implement would be helpful?

If I'm understanding you, though, you want a class that you basically inject all of your services and daos into directly then the rest of those classes would inherit off of it?

This might cause issues with the way Spring sets up it's proxies when classes reference the singletons you inject. Not 100% sure though, might want to avoid doing this.

Also, if you break one of your services, all of your controllers that inherit from that base class would be broken, don't really recommend this. You're coupling your controllers with too many facets of your application.

edited Mar 9, 2012 at 15:05

answered Mar 9, 2012 at 14:43

dardo

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3 Comments

Fabio B. Over a year ago

@dardo: I simply need my SessionPreferencesKeeper bean to be available to ALL controllers. If you think that injecting it everywhere is better than use controller inheritance.... tell me :)

dardo Over a year ago

I think it would be better personally. That way you let spring handle the proxy on the singleton. If you inherit the inject from all your subclasses you MIGHT, and i do mean might lol, have issues with contention

Fabio B. Over a year ago

ok thank you. All I need is to have access, in all controllers, to some default-standard objects. I solved (still trying...) with INTERCEPTORS.

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