So I've been doing some thinking lately about dependency injection,
and the fact that my own personal beef with it (other than the amount
of dogma surrounding it) is the fact that dependencies are exposed
through the public interface of the class. This has always seemed
wrong to me.
Anyway, after a little push from Nic to make the @Before/@After stuff
work with non-public methods, I figured why not do the same for the
Spring integration? And actually I've gone on a bit of a rampage and
refactored the SpringHelper quite significantly. I've made the
following improvements:
- support for protected/package/private method access as well as public
- support for public/protected/package/private *field* access (if
you annotate the field)
- support for non-standard method naming (e.g. @SpringBean someBean
(Bean bean) will look for "someBean" in the ctx)
- caching of discovered fields/methods for injection per class
- catches all Spring exceptions and provides more information in a
rethrown exception
- more up front checking of method signature and informative
exceptions
- injectBeans(Object, ActionBeanContext) the original method signature
- injectBeans(Object, ServletContext) looks up a web application
context and uses that
- injectBeans(Object, ApplicationContext) uses the spring context
supplied
I've also written a fairly exhaustive unit test that covers all the
positive and negative cases I could think of (even threading tests
thanks to TestNG's super-easy multi-threading support). And of
course, it's backwards compatible (at least in terms of positive test
cases).
That said, I don't actually use Spring in any of the applications I'm
developing currently. Anyone game for trying out the latest spring
support and providing feedback? It'll be in SVN a few minutes after
I hit send on this email...
-t
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