Hi All,
since im working now several days with NB and JPA1.0 i
think i can give some hints.:
First: DONT USE NB 5.5 BETA 1 or 2, use the DEV daily
build instead ! - best the one from 29 09 2006 or 30 09 2006, as the Beta's have
problems in creating entitys from DB in case of Many to Many relation and
additional paramters within as well as some other flaws...
if you use the dev daily build... you will just want to
forget eclipse and dali ! - its so smooth, fast.. in fact, the time you need to
download and install the 200 MB + eclipse and plugins, youre already running in
NB (small 42 MB) and also have your first JPA already running..
however, NB 5.5 has 1 big flaw: the java editor... compared
to eclipse its abaout 1 year behind, very sad IMHO.
some things you also might want to remind when working with
JPA:
- currently prefer Toplink Essentials over Hibernate, as
Hibernate is only RC and is very unstable
- NB55: when entitys are created, the EJB QL will take the
parameters from the Java environment, not the DB, as well as vars are written in
lowercase even if they are uppercase in DB:
e.g:
@Entity
public class Foo {
private xxx Bar; <-- even this is treated as lowercase
!!!
setBar( Bar) {}
getBar () {}
}
-> query might be:
"delete c from Foo c where c.bar =
'something'"
and also dont forget to use .executeQuery() in
case of bulk operations :)
- currently PostgreSQL's serials are a problem, as they
arent used by NB entity creation... means much
handwork.
- NB 5.5 dev has also still not the ability to
autoamticall do more than 1 persistence Unit, if you need more (like me) you
have to edit the persistence.xml by yourself
- right click on project and "Add Persistence" will
give you a very fast start - not elegant, but hey, you see how it
works
- same is with EJB3 code for obtaining JNDI :) - ok,
this is not hard, but hey, most programmers are
lazy...
Regards,
Korbinian
Why should anybody be using eclipse for JPA rather than NB5.5. Oh my God you cant have an idea of how much fun you are missing.
Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Ayodeji Aladejebi
Gesendet: Mittwoch, 27. September 2006 13:01
An: wicket-user@lists.sourceforge.net
Betreff: Re: [Wicket-user] Database Integration With Wicket
With NB5.5 i configured and setup Persistence within my wicket application in minutes and my persistence is working to fine. Not even with the annotation support in my entity beans. i enjoyed the look on my teams faces.
Once again thank you Gustavo for hinting this.
and like igor said, i just subclassed the WebRequestCycle to initialize my EntityManagers and boom everything works
Please if you are doing persistence in your wicket applications, give NB5.5 a try, (i am not referring to guys that can handcode the entire thing in emacs oh) but its just too lovely infact am stuck to it like ants on sugar now :)
Infact nobody can preach eclipse to me on this...yu see in my country, internet access is not yet so fast so i dont have all the bandwidth and project time to be looking for plugin left, right and center...whatever works out of the box is just fine
On 9/25/06, Gustavo Santucho <[EMAIL PROTECTED]> wrote:> Then if you use eclipse you look at Dali
I strongly recommend Netbeans for JPA development.
For a comparison, check out
http://blogs.sun.com/klingo/entry/jpa_netbeans_5_5_vs
I use JPA and both Eclipse and Netbeans on a daily basis.
-----
Gustavo.
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