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 > > > > > > > > > > > > > > >
