I'm trialling Guice on a new library that will live in an existing
application. All our apps right now are spring apps and we have some
common code that is tied to spring, mainly to do with the thread model
we tend to use. It basically gives us (what could be seen as) a
logical thread.

So we can throw jobs at it and it ensures that jobs with a given key
always end up on the same pipe in the order that they were submitted.
Typically this is a single thread for the life of the application but
if bad things happen then the worker thread (that backs the pipe) is
thrown away, the pipe deactivated, a new worker created and the pipe
reactivated on that worker. All the wiring here is provided by spring.

My new lib needs to use this for the thread model & I plan on using
guice for the logic & domain side of things, i.e. constructing the
work that goes on the pipeline & and the logic that it represents.
This seems quite straightforward to me except for one thing that seems
quite gnarly, namely that I want to inject certain things with
"pipe" (aka logical thread) scope. I've read the custom scopes (and
SimpleScope implementation) wiki page but some things are not clear to
me and clarification would be much appreciated...

1) pipes survive for the life of the JVM therefore it seems that I
need to enter a scope but never exit, any downsides to this?
2) what options do I have for triggering scope entry in a spring
managed bean? is it just a case of creating the spring context and
then using the SpringIntegration to suck in the spring beans into a
guice context?
3) does this sound really flaky and I should just wrap it with a
singleton keyed by my pipe id instead? though this is nowhere near as
interesting/informative in a "how can I use guice & what can it do?"
kind of way :)

Cheers
Matt
--~--~---------~--~----~------------~-------~--~----~
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
-~----------~----~----~----~------~----~------~--~---

Reply via email to