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From Mike Kienenberger <mkien...@gmail.com>
Subject Re: problem wit hvisualize a size of colletion into a datatable
Date Thu, 20 Feb 2014 19:02:56 GMT
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 <mauro2java2011@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+s10567n117243h73@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:
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>> > Sent from the MyFaces - Users mailing list archive at Nabble.com.
>>
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