Howto handle persistence API query result list

Question

Hello.
I need some advice on how to handle a persistence API query result List since the Object variable returned by the "list.get(i)" method cannot be cast to an EntityClass declared by the EntityClassManager.
The piece of code below might help you understand my exact problem.
EntityManagerFactory emf = Persistence.createEntityManagerFactory("SporTakipPU");
EntityManager em = (EntityManager) emf.createEntityManager();
Query q1 = em.createQuery( "SELECT d.id, d.date, c.name, c.sirname FROM Log d, Kisi c WHERE d.id = :id AND c.id = :id" );
q1.setParameter( "id", argument );
List logList = q1.getResultList();
Log log = (Log) logList.get(1);
In this code i cannot cast Object to Log in the last line. Apparently this has something to do with the query.
Trying to solve this problem i declared two private string variables name and sirname and their set and get methods but this didn't help.
Thanks...

Answer 1

Entity Class : ReportView
===================
@Entity
@Table(name = "dummy")
public class ReportView implements Serializable {
@Id
@Column(name = "id", nullable = false)
private Integer id;
// getter , setter
SessionBean : ReportSessionBean
==========================
public List<ReportView> getReports() {
Query q = em.createNativeQuery("SELECT ID FROM REPORT", ReportView.class);
List<ReportView> r=(List<ReportView>)q.getResultList();
return r;
JSF / Back Bean : ReportBackBean
==========================
public class ReportBackBean {
@EJB
private ReportSessionRemote reportSessionBean;
/** Creates a new instance of ReportBackBean */
public ReportBackBean() {
public List<ReportView> getReports() {
return reportSessionBean.getReports();
JSF
===
<f:view>
<h:dataTable value="#{ReportBackBean.reports}" var="report" border="1">
<h:column>
<h:outputText value="#{report.id}"/>
</h:column>
</h:dataTable>
</f:view>
Regards,
Telman
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