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If you aren't doing that or don't have multiple servers
then not much is being gained outside of a good amount of EJB
complexity.
Walden's rule of EJBs... You don't need them unless you know enough to
know you need them. NO ONE should start out using EJBs. If you're not
sure (and I mean damn sure) what they are, and why they're a benefit
then you don't know enough to use them (and probably don't need them).
BTW, I'm not trying to be a jerk, I'm the first to admit, I don't know
enough to use them, but from what I've seen, there's seldom, if ever, a
need to use them in the systems we run on iSeries machines. Running a
trading floor? Perhaps... Designing FirstData's credit-card clearing
core? Probably... Doing anything we all do, nope.
Aaron is right, they're loved in multi-server, multi-consumer
environments. And "multi" doesn't mean a primary LPAR and a secondary
box, we're probably talking dozens of servers before they really
shine... At which point, they really shine.
-Walden
midrange.com
