daniel legziel wrote: > As a follow up: > > But since there cannot be two instances with the same PK
Incorrect. Especially in a clustered environment. > then there cannot > be two equal objects running at the same time. Depending on how you define "equality". There can be several entity instances with the exact same data (including primary key fields), but they won't be identical since they belong to different transactions, and possibly exist on different nodes in a cluster. > SO IS CONCURRENCY EXCLUDED > FROM ENTITIES. Nope. See above. My suggestion is that you begin to read up on things. Pick up "Mastering EJB" for example. You'll only smash your head bloody by coming up with these questions. Sometimes a mailing list is not the best way to learn. Or, you could pick up the spec and write an EJB server. That's what I did. Most illuminating. /Rickard -- Rickard �berg Author of "Mastering RMI" Chief Architect, TheServerSide.com The Middleware Company - We Build Experts! =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
