Yeah, that wouldn't fly in any of the apps that I work on. If you have known constraints that the user is going to run into then you deal with them in a friendly and helpful manner. Your end users aren't going to find the generic tapestry error page friendly or helpful.
Josh On Fri, Mar 14, 2008 at 10:27 AM, nicholas Krul <[EMAIL PROTECTED]> wrote: > doesn't T5 autoflush the hibernate session at the end of the page render, > though? > > so either the user will see a valid page (and the transaction committed in > the database), or an error page (and no commits). > > I hope so, as I'm trusting to this. > > --nK > > On Fri, Mar 14, 2008 at 5:07 PM, Josh Canfield <[EMAIL PROTECTED]> > wrote: > > > When you call session.save() your object is not necessarily getting > > sent to the database, and thus database constraint violations may not > > be thrown. If you want to ensure the object is sent to the database at > > that point call session.flush() which "...is the process of > > synchronizing the underlying persistent store with persistable state > > held in memory." > > > > http://www.hibernate.org/hib_docs/v3/api/org/hibernate/Session.html#flush()<http://www.hibernate.org/hib_docs/v3/api/org/hibernate/Session.html#flush%28%29> > > > > > Josh > > > > On Fri, Mar 14, 2008 at 2:17 AM, Angelo Chen <[EMAIL PROTECTED]> > > wrote: > > > > > > Hi, > > > > > > Following code is trying to save a new record with an email which > > already > > > exists, after running, then try to update the same record in another > > progam, > > > I got: > > > > > > Lock wait timeout exceeded; try restarting transaction > > > > > > un comment out //sessionManager.Abort, above problem fixed. but I still > > get > > > this error in the log, looks like after abort, hibernate still trying to > > > save: > > > > > > [ERROR] JDBCExceptionReporter Duplicate entry '[EMAIL PROTECTED]' for > > key > > > 2 > > > [INFO] TimingFilter Request time: 42 ms > > > [ERROR] AssertionFailure an assertion failure occured (this may indicate > > a > > > bug in Hibernate, but is more likely due to unsafe use of the session) > > > org.hibernate.AssertionFailure: null id in > > org.bfe.istudio.t5.entities.Usr > > > entry (don't flush the Session after an exception occurs) > > > at > > > org.hibernate.event.def.DefaultFlushEntityEventListener.checkId( > > DefaultFlushEntityEventListener.java:55) > > > at > > > org.hibernate.event.def.DefaultFlushEntityEventListener.getValues( > > DefaultFlushEntityEventListener.java:157) > > > ... > > > > > > > > > @Inject private Session session; > > > > > > @Inject > > > private HibernateSessionManager sessionManager; > > > > > > public void onActivate() { > > > > > > Usr usr = new Usr(); > > > usr.setName("123"); > > > usr.setEmail("[EMAIL PROTECTED]"); > > > > > > try { > > > session.save(usr); > > > } catch (HibernateException e) { > > > //sessionManager.abort(); > > > } > > > > > > <property name="hibernate.connection.autocommit">false</property> > > > > > > > > > -- > > > View this message in context: > > http://www.nabble.com/t5%3A-handling-of-hibernate-exceptions-tp16047005p16047005.html > > > Sent from the Tapestry - User mailing list archive at Nabble.com. > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > -- > > -- > > TheDailyTube.com. Sign up and get the best new videos on the internet > > delivered fresh to your inbox. > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > -- -- TheDailyTube.com. Sign up and get the best new videos on the internet delivered fresh to your inbox. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
