Why dataTable can not show any data

[vani.li]

@Stateless

@Name("sayhello")

public class SayHelloActionImp implements SayHelloInterface {

  private int columnId;

  @In(required=false)

  @Out

  private Person person;

  @Out(required=false)

  private List<Person> users;

  @PersistenceContext

  private EntityManager em;

  /* (non-Javadoc)

  * @see com.session.SayHelloInterface#sayHello()

  */

  public void sayHello()

  {

  em.persist(person);

  person = new Person();

  System.out.println("Save done!");

  users = em.createQuery("select p from Person p").getResultList();

   }

}

When I configured page.xml to let it re-direct to another xhtml page,

code in that page is like:

<h:dataTable value="#{users}" var="user">

    <h:column>

    <h:outputText value="#{user.name}" />

    </h:column>

</h:dataTable>

None Result showed on screen, Why? (BTW, persist action has sucessfully finished)

[vata2999]

Hi,

in this case u need two more annotation in order to build list

@DataModel
@Out(required=false)
  private List<Person> users;

@Factory("users")
void populateUserList(){
      users = em.createQuery("select p from Person p").getResultList();
}