So both beans (statefull or stateless) are injected on every request?
On 12/28/06, Korbinian Bachl <[EMAIL PROTECTED]> wrote:
I believe there you have to differate:
a; stateless-sessionbeans: those are only "living" for 1 method call, then
returned to the EJB-pool, so i dont see here a danger
b, stateful-sessionbeans: those are "living" over the request and have to
be used in your Wicketsession and referenced there, they never (!) may be
used in a wicket page itself without the wicket session use as they would
break concurrent-user support and create a new bean every pageinstance
recreation.
Are I'm wrong here?
Regards
Korbinian
------------------------------
*Von:* [EMAIL PROTECTED] [mailto:
[EMAIL PROTECTED] *Im Auftrag von *Igor Vaynberg
*Gesendet:* Donnerstag, 28. Dezember 2006 17:37
*An:* wicket-user@lists.sourceforge.net
*Betreff:* Re: [Wicket-user] wicket-contrib-javaee moved to Wicket-Stuff
lets not forget the important part, assuming the ejb thing works just like
wicket-spring. things injected are actually proxies not beans themselves.
these proxies can be serialized safely - they do not have a hard link to the
underlying ejb bean. if you do not do this and keep a reference to an ejb
bean in wicket components two things can happen:
a) you get a not serializable exception when wicket/servlet container
needs to serialize something
b) worse, the bean is serializable and you drag it along with the wicket
components into your session ending up with a useless clone
-igor
On 12/28/06, Filippo Diotalevi <[EMAIL PROTECTED]> wrote:
>
> On 12/28/06, Korbinian Bachl <[EMAIL PROTECTED]> wrote:
> > Hi Filippo,
> >
> > just browsed through it and its really nice work. Especially if
> someone
> > wants to have EJB3 persitence but not to use EJB3 Stateless Session
> Beans to
> > query it.
> >
> > However, the thing with the EjbAnnotation looks not so clear to me - i
> mean,
> > every IDE has J5EE support and so in Neatbeans for example i just need
> 2
> > mouseclicks and i got my EJB called through a on the fly created call
> > (including web.xml ref. update/creation) e.g:
>
> Hi Korbinian,
> yes, you are right, you can create your lookup methods (with your
> IDE or writing the classes), in the same way you can extract beans
> from Spring calling applicationContext.get("beanName").
>
> However, I prefer to write less code and let the infrastructure be
> responsible of doing all the boring stuff. Since Java EE 5 allows you
> to inject ejb dependencies through the @EJB annotation, I thought it
> would be useful to extend this functionality to wicket pages, in the
> same way we have @SpringBean annotation for injecting spring beans.
>
> --
> Filippo Diotalevi
>
>
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