netfish wrote:
Hello,
I'm sure i'm missing something basic here. I have a servlet that puts an
ArrayList into session say "EmployeeList" and this is my JSF snippet..
<c:forEach var='item' items='${EmployeeList}'>
<tr>
<td><h:commandLink action='#{empInfo.getEmployeeInfo}'>
<f:verbatim>${item.name}</f:verbatim>
<f:param name="empId" value="${item.id}"/>
</h:commandLink>
</td>
</c:forEach>
The EmployeeList has beans with id and name parameters. I'm trying to post
an Id to the empInfo's getEmployeeInfo action method(empInfo is one of the
managed beans). All i get is the "According to TLD or attribute directive
in tag file, attribute value does not accept any expressions" exception. If
i however substitue the value to some static value, then it works just like
i need.
FYI my tag libs include
<%@ taglib uri="http://java.sun.com/jsp/jstl/core"; prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsf/html"; prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core"; prefix="f" %>
<%@ taglib uri="http://myfaces.apache.org/tomahawk"; prefix="t" %>
and i'm using 1.1 implementation in Tomcat 5.5
Pls let me know if I'm missnig something here!?
Firstly, avoid using c:forEach with JSF1.1. The JSTL tags do NOT work
well with JSF in general, and c:forEach is particularly incompatible
(this is fixed with JSF1.2 I believe). Use t:dataList instead.
Secondly, the JSF tags don't accept JSP expressions ("${..}") in
attributes, only the JSF "#{...}" form. For example, the
myfaces_core.tld file has:
<tag>
<name>param</name>
....
<attribute>
<name>value</name>
<required>true</required>
<rtexprvalue>false</rtexprvalue>
<type>java.lang.String</type>
<description>The value of this parameter.</description>
</attribute>
</tag>
Note that rtexprvalue is false, ie no JSP expressions are permitted.
However the JSF form #{..} should be able to do what you want. Remember
that JSF is not JSP. It's a different way of thinking, and just supports
JSP as one of the possible "templating" systems.
Regards,
Simon
