The likely difference is how Tapestry renders the page; it will buffer the contents in memory (a consequence of the Body component) before streaming the entire result to the user. If your page does not use any JavaScript, then you should be able to build it without the Body component and the results will stream out like a Struts/JSP app.
However, use a Table component and make those 5000 rows navigate as 100 pages of 50 rows and your users will thank you! On 9/26/05, seloha . <[EMAIL PROTECTED]> wrote: > Thanks ausias, > > I have thought about reducing the number of objects but a prvious version of > the app written with struts was able to display many more thn 5000 lines > with no problem. A rethink on presentation may be a good idea. Also > providing the container with more memory may help. > > Thanks again, > > Paul > > ausias vives <[EMAIL PROTECTED]> wrote: > > Hi, > > In my experience, the problem you're describing is not > related directly with Tapestry, It looks like more as > a standard problem with the available memory in the > servlet container. > > I'll try to avoid returning 5000 objects at the same > time, depending on the size of the objects this can be > a large amount of memory, ant thus it can use all the > jetty or tomcat available memory. You can use a > browser to avoid returning all the objects at the same > time. > > If you really need all those objects at the same time, > you should allow the servlet container to use more > memory (even though is always a good idea to increase > the server memory). > > Definetly I recommend you to rethink the way the > results are presented to the user (think about having > 10 users getting 5000 objects each of them... or even > more) > > Regards > > >I have a page which allows a user to search the > >database based on various criteria. I have restricted the number of > >returned > >items to 5000. I display the items in the same search page using the @For > >component with volatile="ognl:true" . Repeated searches which > >return 5000 items will result in an OutOfMemoryError exception. If I leave > >the > >page and then return or stay on the page I will ultimately get an > >OutOfMemoryError exception. > > > >I can view other pages after this exception but a > >repeat of trying to display 5000 items on this page will display an > >OutOfMemory exception. > > > >The only way to clear this problem is to restart the > >servlet container. This fails using either Jetty or Tomcat in both > >development and production environments (using different operating > >systems). > > > >All the variables displaying the list are explicitly > >declared in the .page specification and using initial-value set to null. > > > >I am using Tapestry 4.0 beta 8. > > > >The data is retrieved using Spring and Hibernate (no > >fancy patterns, standard Spring declarative transactions and using > >getHibernateTemplate()) and mapped to Tapestry using hivemodule.xml: > > > > <implementation > > > service-id="hivemind.lib.DefaultSpringBeanFactoryHolder"> > > <invoke-factory> > > <construct autowire-services="false" > > > class="uk.co.cymbol.tair.tapestry.AppSpringBeanFactoryHolderImpl"> > > <event-listener > >service-id="hivemind.ShutdownCoordinator" /> > > <set-object property="context" > >value="service:tapestry.globals.WebContext" /> > > </construct> > > </invoke-factory> > > </implementation> > > > >and injecting the appropriate Spring bean. > > > >I am completely confused as to how to tie down the > >problem and isolate which section of code is causing the problem. > > > >Any help would be much appreciated. > > > >Paul > > > > > > > > > --------------------------------------------------------------------- > >To unsubscribe, e-mail: > >[EMAIL PROTECTED] > >For additional commands, e-mail: > >[EMAIL PROTECTED] > > > > > > > > > ___________________________________________________________ > To help you stay safe and secure online, we've developed the all new Yahoo! > Security Centre. http://uk.security.yahoo.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Howard M. Lewis Ship Independent J2EE / Open-Source Java Consultant Creator, Jakarta Tapestry Creator, Jakarta HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
