[JBoss-user] [EJB 3.0] - Re: SerializationException, not sure about the source
Ok, ok... I forgot about timezone conversion. But putting a hat of a customer I was once, on a system I was writting, simply using Calendars to do such conversions were much faster than using SimpleDateFormat. There is a lot of expression parser and compilations as you said, and if you don't need that avoiding it would improve performance. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3945911#3945911 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3945911 --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB 3.0] - Re: SerializationException, not sure about the source
"[EMAIL PROTECTED]" wrote : | - I actually (as a programmer) would recommend to not use SimpleDateFormat unless your formatting is stored in a database field since its performance is pretty bad. Hmmm, would say, that depends. Its probably not as fast as Integer.toString(), but IMHO its still pretty fast and quite comfortable (especially if you have to consider timezone conversion etc.). What I've seen is, that the way hibernate uses SimpleDateFormat is often inefficient and actually that results in bad performance. E.g. hibernate often creates a new SimpleDateFormat when it needs one. Better would be to clone a static instance (since pattern is the same) and adjust its timezone if neccessary. This would safe the relative expensive compilation of the underlying format pattern, which is done for each new instance of a simpledateformat ... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3945910#3945910 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3945910 --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB 3.0] - Re: SerializationException, not sure about the source
I guess we posted at the same time :) I'm using JBoss 4.0.4.CR2 (can't upgrade to GA right now because of some bad collection mapping; not my fault). Thanks for the tips, they are certainly very useful. I'm using that DateFormat just for debugging and intend to remove it soon -- as soon as everything else works. Thanks again View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3945856#3945856 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3945856 --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB 3.0] - Re: SerializationException, not sure about the source
You could have added the word transient on the field declaratio, this way JBossSerialization wont have used it. I asked you about the version because there were some problems with JBossSerialization used on JBoss 4.0.4 RCLatest. I created a testcase serializing a SimpleDateFormat, and it works fine. If you upgraded your version you would probably have your test working. Also, just some TIPs non related to your post: - be careful on moving SimpleDateFormat to a static class since it's non multi-thread. - I actually (as a programmer) would recommend to not use SimpleDateFormat unless your formatting is stored in a database field since its performance is pretty bad, hence Apache created some FastDateFormat classes. Two cents from someone who wrote a Profiler. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3945845#3945845 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3945845 --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB 3.0] - Re: SerializationException, not sure about the source
Since I cannot delete this topic, let me just say that I solved the problem. The thing is, as the error suggests, that I had a SimpleDateFormat that was not serializable. I declared it in a class as '"DateFormat fmt", and assigned a value to it as DateFormat.getDateInstance(). It was used to format some dates in toString(), so I made it static final and everything works. The world would be so perfect if I didn't do these stupidities. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3945828#3945828 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3945828 --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [EJB 3.0] - Re: SerializationException, not sure about the source
What version of JBoss are you using? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3945827#3945827 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3945827 --- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
