How to evaluate a bean property passed as attribute to a tag file?

Question

I wrote the following tag file:
<%@ tag body-content="empty" %>
<%@ attribute name="domain" required="true" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<select>
     <jsp:useBean id="codeManagerBean" class="blabla.CodeManagerBean" />
     <c:set var="domainMethod">codeManagerBean.${domain}</c:set>
     <c:forEach var="code" items="${domainMethod}">
          <option value="${code.symbol}">${code.description}</option>
     </c:forEach>
</select> What I would like is to call a property of CodeManagerBean whose name was passed as an attribute.
Let's say this tag is used with the attribute domain="currencyCodes", the combo box should be filled with values from CodeManagerBean#getCurrencyCodes().
The problem is that, in order to define the value of items in the forEach instruction, I declared the variable domainMethod. Now I would like items to evaluate the method (and thus return an iterator in this case), and not a String (what it currently does...).
Any idea?
Colargol

Answer 1

Hi,
a managed property only gives you a anlde to a bean or property, it doesn't execute it. To execute a bean, you can use a custom JSF PhaseListener that calls a bean method. The reference to the bean is achieve through value binding
ValueBinding vb = FacesContect.getCurrentInstance().getApplication().createValueBinding("Name of Managed Bean);
TypeOfBean theBean =(TypeOfBean) vb.getValue(FacesContext.getCurrentInstance());
.... theBean.theMethod() ...
Frank