WebObjects and dependency injection (DI)
WebObjects and dependency injection (DI)
- Subject: WebObjects and dependency injection (DI)
- From: Andrus Adamchik <email@hidden>
- Date: Mon, 21 Sep 2009 13:57:49 +0300
I know it is not the traditional "WO way" of doing things, but from my
experience using a dependency injection container in your app (Spring,
Guice, etc.) is one single thing that you can do to dramatically
improve the design quality, and produce flexible and maintainable code.
WO does a bit of that on its own (such as session and application
injection in components), but doesn't bundle a container that a
developer could use for the custom "services" (unlike say Tapestry,
that does have a DI container at its core).
Say I have a WO application and I'd like to use Spring or Guice to
inject custom services in the WOComponents, instead of looking them up
in WOApplication (or worse - defining them as static singletons
somewhere). This sounds easy on the surface. I don't remember all the
component creation internals now (it's been a while since I poked
around the framework code), but I am pretty sure I can create them
with my own factory that is DI container aware. On the other hand
(also because I've been out of the loop on WO for quite some time), I
am sure I am missing some pieces of the puzzle that would make such
setup less practical or outright painful.
This and the fact that DI capabilities don't seem to bother the rest
of the community, I figured I'd ask the list on your opinions, while I
am trying to wire this thing up in the background.
So anybody played with DI-on-WO in some form with any success?
Thanks,
Andrus
---------------------------------------------
Andrus (aka Andrei) Adamchik
Apache Cayenne ORM: http://cayenne.apache.org/
Creator, VP Apache Software Foundation
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden