Define Interceptor to intercept just one action of my controller

[jsmorris]

Is there a way to define an Interceptor to just intercept one action
on my controller?

I have a need to start a background process to do some database
updates and would only like it to fire when a user hits the Index
action on my controller (instead of every method on the controller).
I thought I saw a blog post or something on the net about doing this,
but I cannot seem to find it again.

Interceptors can only be defined at the class level and I poked around
the IInvocation that was passed to the Intercept method, but didn't
see an easy way to see which action(method) was called.

I realize I can just put the code inside of the controller's method,
but seemed out of place and an Interceptor might be the better
solution to this scenario.

[Ayende Rahien]

Just make a check in the interceptor and don't do anything for anything else, that is the simplest approach, which has almost zero cost.

In general, I would STRONGLY recommend against doing something like that in an interceptor, this is part of what the method is doing.

[josh robb]

+1 - magic is bad...

however - you might want to look at Filters if your intent on not
putting this in the action.

j.

[jsmorris]

Thanks for the advise guys. I now see that an Interceptor/Filter
might not be the best approach for what I attend to do. I will put my
logic inside the controller's method.

[Gauthier Segay]

I agree, if controller / httpcontext sensitive, it would better fit a
filter.

About the magic interception mechanism, does that is bad:

http://svn.castleproject.org:8080/svn/castle/trunk/Facilities/AutomaticTransactionManagement/Castle.Facilities.AutomaticTransactionManagement/TransactionInterceptor.cs