A J2EE container should already provide jars with this functionality. http://en.wikipedia.org/wiki/Java_EE_version_history#Java_EE_6_.28December_10.2C_2009.29
I'm not sure about tomee. Probably better to ask that question on the Tomee mailing list. On Thu, Feb 20, 2014 at 1:37 PM, maurojava <mauro2java2...@gmail.com> wrote: > Tank you . > I use tomee so for use jstl i have to add the jars of jstl to web-inf/lib ? > Il giorno 20/feb/2014 18.42, "Mike Kienenberger [via MyFaces]" < > ml-node+s10567n117243...@n7.nabble.com> ha scritto: > >> Calling arbitrary methods like size() isn't supported in EL 2.1, >> although I think it might be in EL 2.2. >> >> Here's the way to do it that will work in any version of JSF. >> >> xmlns:jstl="http://java.sun.com/jsp/jstl/functions"; >> >> [...] >> <h:outputText >> value="#{jstl:length(item.professors)} tot >> projects"/> >> >> >> >> On Thu, Feb 20, 2014 at 11:21 AM, maurojava <[hidden >> email]<http://user/SendEmail.jtp?type=node&node=117243&i=0>> >> wrote: >> >> > From the projectController , i have a method: getCollectionProject that >> > return a List<Project> . >> > Each project contains a list of Professor . >> > SO into the last line i would show the amount of professors for the >> project >> > . >> > >> > The var item rappresent a project. >> > project contains a List<Professor> >> > i write "#{item.professors.size()}" for get the amount of professors >> for >> > the project valutated form each iteration . >> > >> > >> > Whi into the last outputText : >> > <h:outputText value="#{item.professors.size()} tot projects"/> >> > >> > it shows only the words tot projects and not show the value of listSize? >> > >> > >> > -------------------------------- >> > >> > <h:form> >> > >> > <h:outputText value="List"/> >> > <h:dataTable >> value="#{projectController.collectionProject}" >> > var="item"> >> > <h:column> >> > <f:facet name="header"> >> > <h:outputText value="Id"/> >> > </f:facet> >> > <h:outputText value="#{item.id}"/> >> > </h:column> >> > <h:column> >> > <f:facet name="header"> >> > <h:outputText value="name of project"/> >> > </f:facet> >> > <h:outputText value="#{item.name}"/> >> > </h:column> >> > >> > <h:column> >> > <f:facet name="header"> >> > <h:outputText value="numbers of >> professors"/> >> > </f:facet> >> > <h:outputText value="#{item.professors.size()} >> tot >> > projects"/> >> > </h:column> >> > >> > >> > </h:dataTable> >> > </h:form> >> > >> > >> > >> > -- >> > View this message in context: >> http://myfaces.10567.n7.nabble.com/problem-wit-hvisualize-a-size-of-colletion-into-a-datatable-tp117242.html >> > Sent from the MyFaces - Users mailing list archive at Nabble.com. >> >> >> ------------------------------ >> If you reply to this email, your message will be added to the discussion >> below: >> >> http://myfaces.10567.n7.nabble.com/problem-wit-hvisualize-a-size-of-colletion-into-a-datatable-tp117242p117243.html >> To unsubscribe from problem wit hvisualize a size of colletion into a >> datatable, click >> here<http://myfaces.10567.n7.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=117242&code=bWF1cm8yamF2YTIwMTFAZ21haWwuY29tfDExNzI0MnwtMTExNzE4NzYyNQ==> >> . >> NAML<http://myfaces.10567.n7.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> >> > > > > > -- > View this message in context: > http://myfaces.10567.n7.nabble.com/problem-wit-hvisualize-a-size-of-colletion-into-a-datatable-tp117242p117244.html > Sent from the MyFaces - Users mailing list archive at Nabble.com.
