Can you all tell me why @PreDestroy method on CDI @ApplicationScoped is not
being invoked when app is undeployed? @PreDestroy on JSF @ApplicationScoped
Managed bean was invoked when app was undeployed (or app server was
shutdown).
On Wed, Nov 21, 2012 at 6:16 AM, Howard W. Smith, Jr. <
smithh032...@gmail.com> wrote:
> Interesting and thanks for letting me know. I thought I read somewhere
> that CDI (or 'OpenWebBeans') has this ability that you're talking about,
> but when I read about it earlier, i didn't see it referred as @WindowScoped.
>
> Good to know, but the endusers have been trained to 'only' use Google
> Chrome, and no need of opening multiple browser tabs/windows.
>
>
>
> On Wed, Nov 21, 2012 at 6:12 AM, Mark Struberg <strub...@yahoo.de> wrote:
>
>> @SessionScoped has the downside that you cannot open multiple browser
>> tabs with different data. Think about having a list of Cars and then
>> opening 2 different car-edit dialoges in new browser tabs. That would not
>> work using @SessionScoped and is the reason why we invented @WindowScoped
>> and consorts.
>>
>> LieGrue,
>> strub
>>
>>
>>
>>
>> ----- Original Message -----
>> > From: "Howard W. Smith, Jr." <smithh032...@gmail.com>
>> > To: MyFaces Discussion <users@myfaces.apache.org>
>> > Cc:
>> > Sent: Wednesday, November 21, 2012 11:55 AM
>> > Subject: Re: Migration to TomEE/CDI complete, regression testing,
>> ViewAccessScoped
>> >
>> >T hanks Gerhard, will take a look.
>> >
>> > Honestly, @SessionScoped fits the current design of my app the best,
>> only
>> > because I'm always returning null or void from bean to JSF
>> > commandButton/Link actionListener="...", and also, I have index.xhtml
>> > which
>> > is parent to all ui:include src="#{bean.page}".
>> >
>> > Honestly, I have not seen any memory issues at all in production, and
>> I'm
>> > monitoring server log on Production, looking for nullpointerexceptions
>> > here/there, so I can resolve any/every 'exception' occuring in
>> > production,
>> > even if endusers don't see or 'report' the exception(s) to me. :)
>> >
>> > Usually I'm updating the JSF web app software almost daily, but because
>> of
>> > this migration to TomEE/CDI, my focus has been there, and the server has
>> > been running well without restart/etc...
>> >
>> >
>> > On Wed, Nov 21, 2012 at 5:43 AM, Gerhard Petracek <
>> > gerhard.petra...@gmail.com> wrote:
>> >
>> >> hi howard,
>> >>
>> >> you can have a look at [1] (e.g. slide #9)
>> >> the mentioned public application is using codi scopes like
>> >> @ViewAccessScoped without any performance and/or memory issue.
>> >>
>> >> regards,
>> >> gerhard
>> >>
>> >> [1]
>> >>
>> http://os890.blogspot.co.at/2012/11/slides-apache-myfaces-universe.html
>> >>
>> >> http://www.irian.at
>> >>
>> >> Your JSF/JavaEE powerhouse -
>> >> JavaEE Consulting, Development and
>> >> Courses in English and German
>> >>
>> >> Professional Support for Apache MyFaces
>> >>
>> >>
>> >>
>> >> 2012/11/21 Howard W. Smith, Jr. <smithh032...@gmail.com>
>> >>
>> >> > The most users that will be using the app concurrently is 4 to 5
>> users
>> >> (my
>> >> > family), and there are times that they are doing some 'heavy
>> > lifting'
>> >> > (database retrievals/updates, as well as PDF files generated in
>> memory
>> >> and
>> >> > printed/viewed/emailed/faxed, and occasional data push to Google
>> > Calendar
>> >> > via Google Calendar API). Next, planning to automatically insert
>> data
>> >> into
>> >> > database from public website's form results. Hoping to expand the
>> >> services
>> >> > of the 'app' to customers via the public website...one day.
>> >> >
>> >> > The (JSF/HTML5) web app is accessed in and out of the office on
>> > multiple
>> >> > platforms (laptops, iPad, multiple Android devices).
>> >> >
>> >> >
>> >> > On Wed, Nov 21, 2012 at 5:20 AM, Thomas Andraschko <
>> >> > andraschko.tho...@gmail.com> wrote:
>> >> >
>> >> > > Can i ask you how much users serves your app?
>> >> > > Currently our app takes only 20mb session size with 200 (or 100,
>> > can't
>> >> > > remember exactly) concurrent users and we don't use that much
>> >> > > View(Access)Scoped beans.
>> >> > >
>> >> > > 2012/11/21 Howard W. Smith, Jr. <smithh032...@gmail.com>
>> >> > >
>> >> > > > Thomas,
>> >> > > >
>> >> > > > Well, for now, I opt to do/use CDI @RequestScoped, ASAP,
>> > since
>> >> > production
>> >> > > > box/server is running Windows 2003 Server, where 4GB RAM is
>> >> > max...shaking
>> >> > > > my head. I'm sure we will upgrade when necessary, but
>> > right now that
>> >> > app
>> >> > > is
>> >> > > > lighting fast now with Glassfish 3.1.2.2 and MyFaces Core
>> > 2.1.9 and
>> >> > JUEL
>> >> > > > 2.2.5. :)
>> >> > > >
>> >> > > > Looking forward to the performance advantages/gains of
>> > OpenWebBeans.
>> >> :)
>> >> > > >
>> >> > > > Also, this Batoo JPA that you mentioned earlier, because
>> >> > > EclipseLink/Derby
>> >> > > > and Google Calendar requests/updates are the only 2
>> > bottlenecks in
>> >> the
>> >> > > app.
>> >> > > >
>> >> > > > Thanks,
>> >> > > > Howard
>> >> > > >
>> >> > > > On Wed, Nov 21, 2012 at 4:47 AM, Thomas Andraschko <
>> >> > > > andraschko.tho...@gmail.com> wrote:
>> >> > > >
>> >> > > > > Howard, there is nothing against
>> > ViewScoped/ViewAccessScoped.
>> >> > > > > But many data in ViewScoped/ViewAccessScoped leads to
>> > high memory
>> >> > > usage,
>> >> > > > so
>> >> > > > > it's better to use RequestScoped if possible.
>> >> > > > >
>> >> > > > > 2012/11/21 Howard W. Smith, Jr.
>> > <smithh032...@gmail.com>
>> >> > > > >
>> >> > > > > > I'd like to take time to thank you all that
>> > helped me migrate
>> >> from
>> >> > > > > > Glassfish 3.1.2.2 and JSF Managed beans to TomEE
>> > and CDI managed
>> >> > > > beans. I
>> >> > > > > > think the migration is complete. I am in
>> > regression testing
>> >> > > phase/mode
>> >> > > > > now.
>> >> > > > > > :)
>> >> > > > > >
>> >> > > > > > Special shout out to Thomas Andraschko, as his
>> > inputs in
>> >> PrimeFaces
>> >> > > > > forums
>> >> > > > > > and blogs, lead/motivated me to migrate from
>> > Mojarra 2.1.7 to
>> >> > MyFaces
>> >> > > > > Core
>> >> > > > > > 2.1.8 for fast (AJAX) rendering performance, and
>> > then he even
>> >> > > > recommended
>> >> > > > > > MyFaces Core, OpenWebBeans, JUEL for huge
>> > performance gains, and
>> >> > even
>> >> > > > > > today, he encouraged me to consider Batoo JPA, and
>> > because of
>> >> that,
>> >> > > > > > TomEE/OpenEJB and Batoo JPA are now discussing
>> > integration! :)
>> >> > > > > >
>> >> > > > > > Anyway, Jose, here, recommended CODI
>> > @ViewAccessScoped. I think
>> >> > > Thomas
>> >> > > > > and
>> >> > > > > > some other expert users in PrimeFaces Core forum
>> > recommended
>> >> > > > > @RequestScoped
>> >> > > > > > as much as possible throughout app, and
>> > recommended against JSF
>> >> > > > > @ViewScoped
>> >> > > > > > as well as CODI @ViewAccessScoped (I hope I'm
>> > not misquoting
>> >> > > > > them...smile).
>> >> > > > > >
>> >> > > > > > Honestly, I have no CDI @RequestScoped beans in my
>> > app; I need to
>> >> > > take
>> >> > > > > time
>> >> > > > > > to move some of my code from CDI @SessionScoped to
>> > CDI
>> >> > > @RequestScoped.
>> >> > > > > > Also, due to issues I experienced injecting EJBs
>> > inside of
>> >> > > > > @FacesConverter
>> >> > > > > > (which were added to CDI @SessionScoped beans)
>> > caused me to move
>> >> > all
>> >> > > my
>> >> > > > > > @FacesConverter classes to JSF @RequestScoped
>> > beans; that seems
>> >> to
>> >> > be
>> >> > > > > > working great, but Mark and Gerhard has already
>> > recommended CODI
>> >> > > > > > @Advanced/etc... to inject beans in
>> > @FacesConverter classes. I
>> >> need
>> >> > > to
>> >> > > > > give
>> >> > > > > > them a try even though I spent hours moving
>> > @FacesConverter
>> >> classes
>> >> > > > from
>> >> > > > > > CDI beans to JSF Managed beans...during this
>> > migration to CDI.
>> >> > > > > >
>> >> > > > > > So, please advise on whether I should use
>> > @ViewAccessScoped;
>> >> pros,
>> >> > > > cons,
>> >> > > > > > promote/hinder performance, etc...
>> >> > > > > >
>> >> > > > > > OR, should I move to CDI @RequestScoped, ASAP???
>> > :)
>> >> > > > > >
>> >> > > > > > Oh, Romain informed me that tomee.xml JDBC
>> > resources
>> >> automatically
>> >> > > have
>> >> > > > > > pooling. I hope that is the case, because as soon
>> > as regression
>> >> > > testing
>> >> > > > > is
>> >> > > > > > complete, I would like to push the new CDI version
>> > of my JSF web
>> >> > app
>> >> > > to
>> >> > > > > > production, and start using some of the other/neat
>> > features of
>> >> CDI,
>> >> > > > like
>> >> > > > > > CDI events where possible. :)
>> >> > > > > >
>> >> > > > > > Thanks,
>> >> > > > > > Howard
>> >> > > > > >
>> >> > > > >
>> >> > > >
>> >> > >
>> >> >
>> >>
>> >
>>
>
>
