Yes, you can. Look at this http://www.jboss.org/online-manual/HTML/ch07s16.html
alex > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Dennis > Muhlestein > Sent: Monday, April 29, 2002 5:26 PM > To: [EMAIL PROTECTED] > Subject: Re: STILL TRYING: [JBoss-user] CMP: Iterate Collection > PerformanceKiller > > > It makes sense to change the commit option for transactions for > performance tuning. I have one Entity Bean that I think would fit > option A better, and others that fit option B better. > > Can I customize each entity bean? I tried putting read-only > to true on > the one bean, but the container still loaded it before each > transaction. > (Option B). I don't want to change everything to option A. > > Thanks > -Dennis > > > On Fri, 2002-04-26 at 10:29, Dan Christopherson wrote: > > First, the re-fetch you see between your two tests is > because of the > > commit option. Option B (default in 3.0) doesn't cache data between > > transactions, although the bean instances will be cached. > If you aren't > > clustering and your data can't be modified from anywhere > else, you can > > change standardjboss.xml to use Option A instead. > > > > As to why you need the user transaction, what kind of > object are you > > calling from? If it's a client, well then you need a > UserTransaction. If > > it's a session bean, then make sure your session bean's > method is in a > > transaction with type of Required or RequiresNew. > > > > hth, > > danch > > > > Frank Morton wrote: > > > > > > If I wrap it with a UserTransaction, things look good, but I don't > > > see why I would have to do so. And, if I do, I have many places > > > where I will have to do the same thing, which I would > like to avoid. > > > > > > Without wrapping in my own transaction, when trying to > get a single > > > property from a single element in the Collection, it > loads the whole > > > Collection. I don't understand why it would do it twice, let alone > > > for each element in the Collection. I also don't understand if it > > > is a function of the commit options, config or it is not working > > > as expected. > > > > > > > > _______________________________________________ > > JBoss-user mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/jboss-user > > > > _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
