you are holding a reference to your database object directly.
wicket serializes sessions, so if you hold a reference you have to make sure
that object is serializable.
you have two options:
make the object serializable or keep it in some kind of detachable model,
since its a db object most likely a LoadableDetachableModel. there is a page
on the wiki that describes models.
-igor
On 4/18/07, galbu <[EMAIL PROTECTED]> wrote:
Hello world I'm a beginner and I have a problem with my first Wicket
Application:
I get from a database a list of objects "Ordine" and I have a "ViewOrdini"
page
that correctly show me the list; now I want check an "Ordine" from that
list
and
generate a "ViewDettaglioOrdini" page that must show me all the objects
"DettaglioOrdine"
contained in the db that are associated with the "Ordine" I checked
before.
When I try to generate this page where I have the details of the checked
"Ordine"
I get this error:
WicketMessage: Internal error cloning object. Make sure all dependent
objects implement Serializable.
Class: wicket.consapplication.ViewDettaglioOrdini
Root cause:
java.io.NotSerializableException:
wicket.services.AppService$$EnhancerByCGLIB$$b5498fd0
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java
:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java
:1474)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java
:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java
:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java
:1474)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java
:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java
:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java
:1474)
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java
:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at
wicket.protocol.http.HttpSessionStore.setAttribute(HttpSessionStore.java
:57)
at wicket.Session.setAttribute(Session.java:952)
at wicket.PageMap.put(PageMap.java:526)
at wicket.Session.touch(Session.java:744)
at wicket.Page.renderPage(Page.java:419)
at wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java
:160)
at
wicket.request.target.component.PageRequestTarget.respond(
PageRequestTarget.java:60)
at
wicket.request.compound.DefaultResponseStrategy.respond(
DefaultResponseStrategy.java:49)
at
wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond(
AbstractCompoundRequestCycleProcessor.java:66)
at wicket.RequestCycle.doProcessEventsAndRespond(RequestCycle.java:902)
at wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:929)
at wicket.RequestCycle.step(RequestCycle.java:1010)
at wicket.RequestCycle.steps(RequestCycle.java:1084)
at wicket.RequestCycle.request(RequestCycle.java:454)
at wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:219)
at wicket.protocol.http.WicketServlet.doPost(WicketServlet.java:262)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(
WebApplicationHandler.java:294)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java
:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(
WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:789)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:960)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:806)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java
:218)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:331)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:520)
Complete stack:
wicket.WicketRuntimeException: Internal error cloning object. Make sure
all
dependent objects implement Serializable. Class:
wicket.consapplication.ViewDettaglioOrdini
at
wicket.protocol.http.HttpSessionStore.setAttribute(HttpSessionStore.java
:63)
at wicket.Session.setAttribute(Session.java:952)
at wicket.PageMap.put(PageMap.java:526)
at wicket.Session.touch(Session.java:744)
at wicket.Page.renderPage(Page.java:419)
at wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java
:160)
at
wicket.request.target.component.PageRequestTarget.respond(
PageRequestTarget.java:60)
at
wicket.request.compound.DefaultResponseStrategy.respond(
DefaultResponseStrategy.java:49)
at
wicket.request.compound.AbstractCompoundRequestCycleProcessor.respond(
AbstractCompoundRequestCycleProcessor.java:66)
at wicket.RequestCycle.doProcessEventsAndRespond(RequestCycle.java:902)
at wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:929)
at wicket.RequestCycle.step(RequestCycle.java:1010)
at wicket.RequestCycle.steps(RequestCycle.java:1084)
at wicket.RequestCycle.request(RequestCycle.java:454)
at wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:219)
Here you have the package structure of my application:
-wicket
-common
-auth.model
-Group.class
-User.class
-model
-Provincia.class
-Stato.class
-Indirizzo.class
-Money.class
-MoneyType.class
-Macroregione.class
-consapplication
-...all wicket pages
-consumi
-dao
-OrdineDAO.Interface
-DettaglioOrdineDAO.Interface
-...others
-hibernate
-OrdineHibernateDAO.Interface
-DettaglioOrdineHibernateDAO.Interface
-...others
-loading
-model
-Ordine.class
-DettaglioOrdine.class
-....others
-services
-AppService.class
The AppService it's an utility class in which there are all DAO methods:
public class AppService {
private AnagraficaProdottoDAO anagraficaProdottoDAO;
private OrdineDAO ordineDAO;
private DettaglioOrdineDAO dettaglioOrdineDAO;
private ClasseCNDDAO classeCNDDAO;
private EnteDAO enteDAO;
private UserDAO userDAO;
public void setUserDAO(UserDAO dao) {
userDAO = dao;
}
public void setAnagraficaProdottoDAO(AnagraficaProdottoDAO dao) {
anagraficaProdottoDAO = dao;
}
public void setOrdineDAO(OrdineDAO dao) {
ordineDAO = dao;
}
public void setEnteDAO(EnteDAO dao) {
enteDAO = dao;
}
public void setDettaglioOrdineDAO(DettaglioOrdineDAO dao) {
dettaglioOrdineDAO = dao;
}
public void setClasseCNDDAO(ClasseCNDDAO dao) {
classeCNDDAO = dao;
}
//methods
}
In wicket.consumi.model.* and in wicket.common.* I have my static classes
mapped
with Java Annotations.
Here there's the code of "ViewDettaglioOrdini" page:
public class ViewDettaglioOrdini extends ConsumiTemplateMenuPage
implements
Serializable{
private static final long serialVersionUID = 1L;
private ConsumiSession session = (ConsumiSession)getSession();
private Ordine ordine;
public ViewDettaglioOrdini() {
super();
verifyAccess();
final FeedbackPanel feedback = new
FeedbackPanel("feedback");
add(feedback);
/*
* recupero l'ordine precedentemente salvato nella
sessione
*/
this.ordine = session.getOrdine();
final DettaglioOrdiniDataProvider dataProvider = new
DettaglioOrdiniDataProvider(ordine);
final DataView dettagli = new
DettaglioOrdiniDataView("dettagliOrdini",dataProvider);
//vincolo il numero di righe viste per pagina
add(dettagli);
dettagli.setItemsPerPage(5);
add(new PagingNavigator("navigator",dettagli));
}
public String getPageTitle() {
return "Visualizza Lista Dettagli Ordine";
}
class DettaglioOrdiniDataView extends DataView{
private static final long serialVersionUID = 1L;
public DettaglioOrdiniDataView(String id, IDataProvider
dataProvider) {
super(id, dataProvider);
}
protected void populateItem(final Item item) {
DettaglioOrdine dettaglioOrdine =
(DettaglioOrdine)
item.getModelObject();
String codiceOrdine = ordine.getCodiceOrdine();
String anagraficaProdotto =
dettaglioOrdine.getAnagraficaProdotto().getDescrizione();
item.setModel(new
CompoundPropertyModel(dettaglioOrdine));
item.add(new Label("id"));
item.add(new Label("fornitore"));
item.add(new Label("qtaOrdinato"));
item.add(new Label("valOrdinato"));
item.add(new Label("ordine",codiceOrdine));
item.add(new
Label("prodotto",anagraficaProdotto));
}
/*
* serve per creare gli item che modificano le features
dell'html
*/
protected Item newItem(final String id, int index, final
IModel model){
return new OddEvenItem(id, index, model);
}
}
}
I know it's difficult understand the context but any suggest to solve the
error
will be appreciate.
Thanks in advance !
--
View this message in context:
http://www.nabble.com/Internal-error-cloning-object-tf3602033.html#a10062107
Sent from the Wicket - User mailing list archive at Nabble.com.
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Wicket-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/wicket-user
