h:selectOneMenu and Ajax4jsf problem

[felixk2]

Hi,

I'm trying to change a rich:dataTable based on which dropdown item is selected. Here is my drop down:

<h:selectOneMenu value="#{customerList.selectedReseller}">
 <a4j:support event="onchange" reRender="resultTableDiv" />
 <s:selectItems value="#{resellerList.resultList}" var="reseller" label="#{reseller.reseller}" noSelectionLabel="Select..."/>
 <s:convertEntity />
</h:selectOneMenu>

My Bean:

@Stateful
@Name("customerList")
public class CustomerListAction implements CustomerList
{
 private Reseller selectedReseller;
 private List<Customer> customerListByReseller;

 @PersistenceContext
 private EntityManager em;

 @Logger
 private Log log;

 @In
 private FacesMessages facesMessages;

 @Create
 public void getCustomerByResellerId()
 {
 try
 {
 customerListByReseller = em.createQuery("select customer from Customer customer where reseller=:reseller")
 .setParameter("reseller", selectedReseller).getResultList();
 }
 catch(Exception e)
 {
 log.error("An error occured: ", e);
 }
 }

 @Destroy @Remove
 public void destroy()
 {
 }

 public void setSelectedReseller(Reseller selectedReseller)
 {
 this.selectedReseller = selectedReseller;
 }

 public Reseller getSelectedReseller()
 {
 return selectedReseller;
 }

 public void setCustomerListByReseller(List<Customer> customerListByReseller)
 {
 this.customerListByReseller = customerListByReseller;
 }

 public List<Customer> getCustomerListByReseller()
 {
 return customerListByReseller;
 }
}

The rerender works fine. I can see the a4j rerendering because the datatable is hitting my "getCustomerByResellerId()" method (I see hibernate querying the database). Problem is with selectedReseller. It keeps coming back as Null. So the h:selectOneMenu doesn't place the selected Item into selectedReseller.

Anyone see anything wrong with this and why this wouldn't work?

Thank you very much,
Felix

[damianharvey]

Try setting the scope of the Bean to

@Scope(SESSION)

. It's likely that the Bean isn't hanging around longer than the request and that is what is causing the null.

Cheers,

Damian.

[felixk2]

Thanks for the reply Damian. I actually just figured it out. I needed to add the following to my a4j:support:

<a4j:support event="onchange" reRender="resultTableDiv" action="#{customerList.populateCustomerList}"/>

and then add that method in my ejb to populate the list.

Felix