Having an "init" method called once at the beginning is the purpose of @PostConstruct.
I may not use the right words, but the @PostConstruct method will be called only once, when the bean is instantiated, even if navigation triggers serialization and multiple objects are instantiated. It will work this way independently of using @ManagedBean or @Named. I bumped my head in walls and trees when I had exactly your problem... :) @+! Le 8 novembre 2014 13:21:08 UTC+01:00, "Bjørn T Johansen" <b...@havleik.no> a écrit : >Yes, I tried using Weld and CDI but with the same result. >Also I do not do bean init stuff in the consctructor but in a >init-method that I am trying to make sure is called only once, which do >not seem to be >that easy..... > > >BTJ > >On Sat, 08 Nov 2014 13:13:35 +0100 >Ludovic Pénet <l.pe...@senat.fr> wrote: > >> I would rather use @Named / @Inject, which are more powerful than >@ManagedBean / @ManagedProperty. You can inject more stuff, in more >places with less side effects. You would have less side effects with >properties serialization and such things. >> >> I also usually prefer Deltaspike @ViewAccessScoped to @ViewScope. >With @ViewAccessScoped, your bean will live as long as it is used >during user navigation. I find it more handier than @ViewScoped and >even @FlowScoped, as it requires no configuration. >> >> Finally, I stopped doing bean init stuff in constructors. Objects are >instantiated during serialization. I prefer to use @PostConstruct for >init and @PreDestroy for termination stuff. >> >> Hope this helps. >> >> Ludovic >> >> Le 7 novembre 2014 22:22:07 UTC+01:00, "Bjørn T Johansen" ><b...@havleik.no> a écrit : >> >That I can do... :) >> > >> >Attached... >> > >> > >> >BTJ >> > >> >On Fri, 7 Nov 2014 16:14:55 -0500 >> >"Howard W. Smith, Jr." <smithh032...@gmail.com> wrote: >> > >> >> That's fine. >> >> >> >> Can you provide your XHTML and java bean definition (source code) >> >here? You >> >> provided a little bit of your java bean in primefaces forum. >> >> >> >> Your XHTML and java bean may help us on this list to help you. >> >> >> >> >> >> On Fri, Nov 7, 2014 at 4:11 PM, Bjørn T Johansen <b...@havleik.no> >> >wrote: >> >> >> >> > Yes, I did.. But since I did not get any answer there and I >thought >> >that >> >> > this was more a JSF question than a PrimeFaces question, I >thought >> >I should >> >> > try here.... Was that wrong? >> >> > >> >> > BTJ >> >> > >> >> > On Fri, 7 Nov 2014 15:58:59 -0500 >> >> > "Howard W. Smith, Jr." <smithh032...@gmail.com> wrote: >> >> > >> >> > > Interesting, you asked the same question in PrimeFaces forum. >> >> > > >> >> > > http://forum.primefaces.org/viewtopic.php?f=3&t=40267 >> >> > > >> >> > > >> >> > > On Fri, Nov 7, 2014 at 3:42 PM, Bjørn T Johansen ><b...@havleik.no> >> >wrote: >> >> > > >> >> > > > I trying to create a webapplication using request and/or >> >viewscope >> >> > instead >> >> > > > of sessionscope, which I have always used... (Neved needed >to >> >concern >> >> > > > myself with memory usage in the apps I have implemented.. :) >) >> >> > > > But I now have a problem using @ViewScoped.. >> >> > > > When I access index.xhtml which uses a managed bean in >> >viewscope, the >> >> > > > constructor is called multiple times. And the same with an >init >> >> > method, that >> >> > > > should be called only once. I am using..: >> >> > > > >> >> > > > <f:metadata> >> >> > > > <f:viewAction action="#{calendarController.initPrices}" >/> >> >> > > > </f:metadata> >> >> > > > >> >> > > > <h:head>...... >> >> > > > >> >> > > > to call the init method, but I have also tried using f:event >> >> > prerenderView >> >> > > > and also @PostConstruct but I am not able to make the bean >call >> >the >> >> > init >> >> > > > method only once... >> >> > > > >> >> > > > What am I missing? >> >> > > > >> >> > > > >> >> > > > Regards, >> >> > > > >> >> > > > BTJ >> >> > > > -- >> >> > > > >> >> > > > >> >> > >> >>----------------------------------------------------------------------------------------------- >> >> > > > Bjørn T Johansen >> >> > > > >> >> > > > b...@havleik.no >> >> > > > >> >> > > > >> >> > >> >>----------------------------------------------------------------------------------------------- >> >> > > > Someone wrote: >> >> > > > "I understand that if you play a Windows CD backwards you >hear >> >strange >> >> > > > Satanic messages" >> >> > > > To which someone replied: >> >> > > > "It's even worse than that; play it forwards and it installs >> >Windows" >> >> > > > >> >> > > > >> >> > >> >>----------------------------------------------------------------------------------------------- >> >> > > > >> >> > >> >> > -- Envoyé de mon téléphone Android avec K-9 Mail. Excusez la brièveté. | | AVANT D'IMPRIMER, PENSEZ A L'ENVIRONNEMENT. |
