I haven't started implementing the custom scope yet so I can't really comment on how to enter/exit a scope. What you propose sounds reasonable, using a Callable, and finally block to exit.
On Feb 24, 2:36 pm, Fred Faber <[email protected]> wrote: > How would you enter such a scope? Can you complement such an entry point > with an exit point? > > A typical way to do this is to run your scoped code as a Callable, and exit > the scope in a finally{} block. > > On Thu, Feb 24, 2011 at 3:34 PM, scott <[email protected]> wrote: > > Thanks for the response. After I submitted the post, I found this one > > that looks to be along the same lines: > > >http://groups.google.com/group/google-guice/browse_thread/thread/ec5d... > > > I'm considering writing a custom scope, and might build something like > > this into it. I was really hoping that built-in Guice scopes (like > > RequestScoped) had some mechanism to accomplish this, but like you, I > > don't see anything to lead me to believe that this feature is there. > > > My planned approach is to use Guice AOP, and implement the cleanup in > > a MethodInterceptor, after the business logic is called. It's not the > > cleanest approach because I'm now dependent on an annotation being put > > on the logic to do the cleanup, but its the best I've come up with so > > far. > > > On Feb 23, 11:59 am, Fred Faber <[email protected]> wrote: > > > This is something that will be dependent on the scope you use. None of > > the > > > Scopes bundled with Guice proper include such a feature afaik. > > > > But on that note, I'm about to build it into a custom scope I use, and so > > I > > > do think the idea has wheels. > > > > Fred > > > > On Wed, Feb 23, 2011 at 1:48 AM, scott <[email protected]> wrote: > > > > I was just wondering if there is any way to implement a callback to > > > > perform some logic when an object goes out of "Scope" ? For example, I > > > > have a Request scoped @Provides method, that creats an object and does > > > > some initialization on it, I need a way to do some cleanup when the > > > > scope is exiting. -thanks > > > > > -- > > > > You received this message because you are subscribed to the Google > > Groups > > > > "google-guice" group. > > > > To post to this group, send email to [email protected]. > > > > To unsubscribe from this group, send email to > > > > [email protected]. > > > > For more options, visit this group at > > > >http://groups.google.com/group/google-guice?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "google-guice" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/google-guice?hl=en. -- You received this message because you are subscribed to the Google Groups "google-guice" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-guice?hl=en.
