I'd be interested to hear if you have any profiling results specifically
showing DI is responsible for the bad startup perf.
My assertion is that if you startup Hibernate + Wicket + whatever
without DI, just configuring them by hand, it will take 90%+ of the time
it took with DI. E.g. DI should be negligible.
I could very well be wrong, but I do agree with Thomas that, in theory,
DI should be cheap. "Some cycles", yes. But there is no I/O, not a huge
computational task to be done--it should be fast.
Hibernate itself is notoriously slow to startup, so, yeah, any stack
change you make that involves changing Hibernate to Objectify will get a
great startup boost, regardless of whether DI is involved.
That being said, I'm not a Spring (nor Guice) fan, so would actually
enjoy seeing numbers that show, say, your stack w/Spring takes x% more
time than the same stack w/o Spring.
(...it sucks this conversation is happening on the "Announcing GWT 2.1"
thread. Whoever started this tangent, new thread next time.)
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