how do i get the size of collection in .xhtml with facelets

[holtak]

hello

how do I get the size of a collection in .xhtml when using facelets?

what I want to do is something like this
<h:outputText value="#{myBean.myCollection.size}"/>

thanks

[msduk]

Are you susre that your collection supports getSize() ?

Iterator and a few others do not

[pmuir]

Seam intercepts EL calls and adds in a size property for Collections, Map and DataModel. Does this work if your EL expression is #{myCollection.size}?

[lindsayh]

"petemuir" wrote:
Seam intercepts EL calls and adds in a size property for Collections, Map and DataModel. Does this work if your EL expression is #{myCollection.size}?

I think these EL resolvers only work for JSF 1.2.

After having difficulty getting my app to work with JSF 1.2, I just use the JSTL length funtion to get a collection size when I need to:

Here's my namespace declaration:

<ui:composition xmlns:ui="http://java.sun.com/jsf/facelets"
 xmlns:s="http://jboss.com/products/seam/taglib"
 ...
 xmlns:jstlfn="http://java.sun.com/jsp/jstl/functions"
 ...

and here's how I use the length function in a table:

<rich:column>
 <f:facet name="header">
 No. of Users
 </f:facet>
 #{jstlfn:length(userGroup.users)}
</rich:column>

I got this tip from someone else.

Lindsay