Posted By:
Lasse_Koskela
Posted On:
Wednesday, November 6, 2002 11:24 PM
The patterns you mentioned are
not used in J2EE (because J2EE in general doesn't say "use this pattern") but they
can be used in a J2EE-compliant application.
The description of those patterns should tell you in what kind of situation (and domain) they are a good solution.