> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Aleksandr > Shneyderman > Sent: Friday, March 14, 2003 9:58 AM > To: [EMAIL PROTECTED] > Subject: RE: [JBoss-user] Re: Hibernate or ejb > > > I do not mean to anger the public here by being off-topic, > just could not keep my mouth shut. > > > The first thing we came across is the problem of lazy > instantiation. Let's > > say you have > > object A that has a relation to obect B. But you only want to > load A and B > > later when > > it is used. Hibernate cannot handle this (this is an open bug but maybe > > fixed in the new > > 2.0 beta). We have found a way around this but it is not very nice. > > Hmm, it works for me. But then again I work with 2.0. It actually > pretty neat how hibernate does things in respect of lazy collections. > You only initialize them when you need them, and I think Gavin is in > process of adding a method call called isInitialized () for a lazy > collection. You can do even more you can disconnect your session and > initialize lazy collection when you need it. Then of course you need > to reconnect with the same Session. The problem with collections is > that it is fairly difficult to configure them and there just a gazillion > options and way to do it. You just need to experiment. > > > Another thing is definitely the caching in hibernate. You never > know when > > hibernate > > actually saves the data to your DB. > > I think you are worng here too. First of all if you use a persistence > tool then you should not worry about when it saves the stuff to the DB. > Second of all if you do not want Hibernate to save your stuff call on > session session.setFlushMode (FlushMode.NEVER) will let you control > when you want to do the actual flushing. Then of course you need to > call session.flush () yourself. I usually do not trust my saves to > anyone :-) so the manual flush works for me. >
Sounds like Hibernate needs some integration with J2EE transactions. Bill ------------------------------------------------------- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
