coolness: built-in DI (IoC) and other forms of goodness

[epstein]

OK, random obnoxious dissing aside, I'm going through some EJB3 intro material on the JBoss site and am beginning to smile again about standards-based J2EE development. At long last. And I know there's a real debt to Gavin and other Hibernate folks for getting the standards going in the right direction.

The idea that I can declare my bean's, nay POJO's!! properties and leave the container to set them automagically via dependency injection is 100% right-on cool. Many thanks from many of us. Kodos.

As for the online trails and other material, it's pretty high quality (thouh see my flagrantly rude (anti-social even?) post on the subject of choosing good examples).

Finally, I haven't quite gotten over the syntactic indigestion caused by annotations -- they seem like mondo warts on a rather elegant language -- but then, it's (a) syntax and (b) I went to a college that had warts (literally) all over its buildings: offensive to one architect's sense of style my be the epitome of another architects idea of it.

[epstein]

uhhhh, make that "EJB 3.0 dependency injection annotations only works in EJB objects -- not generic POJOs" oh well, I have to take it all back... no, seriously, I got that wrong, but it's still cool. Some automation is better than none and, last time I checked, SpringFramework (et. al.) plays nicely with the A/S and servlet containers.

[epbernard]

What is the difference between adding a @Entity on a class and adding an xml declaration for this class in some Spring file?