On 3/14/06, Ken Dunnington <[EMAIL PROTECTED]> wrote: > Chris, I attended your Model Management session at cf.objective() > (which was excellent, btw)
Yes it was! I enjoyed both of Chris's sessions! > create my gateway, but since Reactor uses the individual Record > objects as a kind of facade for the DAO, does it make any sense to use > ColdSpring to manage those objects using factory-method and > singleton="false"? No. ColdSpring is really not intended to manage transient objects. I think I addressed that in my factories talk on Saturday? I know that subject has come up on this list in the past. I've been trying to figure out how to use AOP to apply security in situations like this and it's tricky. You don't want to apply AOP to transient objects (since it's all about object creation and transient objects are created over and over again) so it would be nice to apply AOP to the DAO - except you can't get Reactor to use a ColdSpring-managed DAO since Reactor manages its own object creation. So I'm looking at applying AOP to the Reactor factory itself - which works in a basic case, BTW - but now I have a circular dependency (my AOP aspect object depends on the factory to which it is being applied) and, right now, ColdSpring won't quite handle that (I'm trying to figure out a fix but it's certainly an edge case). So, the bottom line is: transient objects can come from Reactor but not from ColdSpring. > Furthermore, Doug just added Dictionary objects to the reactorFactory > so the more general question is, does it make sense to hide the > factory (Reactor) from the model (Service), and just be sure to inject > all possible dependencies (DAO/Record/Dictionary)? Or should the > Service be given access to the factory directly (at least in this > case)? The service will need access to the factory directly. I have the gateways injected (using ColdSpring and the factory-bean / factory-method stuff) because that ensures that they are only created once. Glad you enjoyed the conference! -- Sean A Corfield -- http://corfield.org/ Got frameworks? "If you're not annoying somebody, you're not really alive." -- Margaret Atwood
