Unable to find error during hello World
Hello,
I am a new user. I succeeded the quickstart but can not run the "Hello World"
example. I get the following error:
Unable to find component with id 'message' in [Page class =
com.modelandgo.HomePage, id = 0, render count = 1] Expected: '.message'.
I searched in the mailing list but did not found the solution.
I add my simple code hereunder.
Thanks!
Marc
__
my application:
public class WicketApplication extends WebApplication
{
@Override
public Class getHomePage()
{
return HomePage.class;
}
}
my page:
public class HomePage extends WebPage {
private static final long serialVersionUID = 1L;
public HomePage(final PageParameters parameters) {
add(new Label("message", "I am a newbie"));
}
}
my html:
http://wicket.apache.org";>
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Re: Data in session and debugger
Hi, Is the ResultClass Serializable (members + itself implement Serializable)? If not, you should see stack traces in the logs each time a page is rendered. On 14/04/2012 2:47 PM, Andre Schütz wrote: Hi, I tried the debugBar in my WebPage and could analyze the session size and the data of the Inspector. When I stored some data in the session, the debugBar stopped working. I says Page:unknown and could no longer display the size of the session. Let me explain my program. I have two WebPage classes. Page1 and Page2. Page1: Search box and submit button -> stores the search result in a session variable (ResultClass). Page2: show the result in a listing When I stop storing the ResultClass in the session, the debugBar works fine. With storing the ResultClass in the session, the debugBar does no longer display the session size and Page information. The ResultClass is Serializable. Any idea why the debugBar does not work when I store the result in the session? Thanks, Andre - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: reload model each time
W dniu 2012-04-14 13:38, Tom Eugelink pisze: Another newbie question; it is now the case that each model is serialized between requests and (I presume) stored in the session. I would really prefer if a identifier (primary key + lazy locking versionnr) could be remembered and that each time when Wicket needs the model, it is loaded from the database. AFAIK by default Wicket serializes pages and its attributes to a filestore on a disk in a servlet container and the session is not affected. So you don't have to worry about its size. But, of course for large objects and specially list you should use LoadableDetachableModels. Is this possible? Is there something like a ReloadingModel? See section Detachable Models and specially LoadableDetachableModel in https://cwiki.apache.org/WICKET/working-with-wicket-models.html Robert - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Data in session and debugger
Hi, I tried the debugBar in my WebPage and could analyze the session size and the data of the Inspector. When I stored some data in the session, the debugBar stopped working. I says Page:unknown and could no longer display the size of the session. Let me explain my program. I have two WebPage classes. Page1 and Page2. Page1: Search box and submit button -> stores the search result in a session variable (ResultClass). Page2: show the result in a listing When I stop storing the ResultClass in the session, the debugBar works fine. With storing the ResultClass in the session, the debugBar does no longer display the session size and Page information. The ResultClass is Serializable. Any idea why the debugBar does not work when I store the result in the session? Thanks, Andre -- Andre Schütz - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: reload model each time
Thanks! This looks very promising! On 2012-04-14 14:03, Christoph Leiter wrote: Here's a good article about EntityModel, which does what you want: http://wicketinaction.com/2008/09/building-a-smart-entitymodel/ Christoph - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: reload model each time
On 04/14/2012 03:03 PM, Christoph Leiter wrote: Here's a good article about EntityModel, which does what you want: http://wicketinaction.com/2008/09/building-a-smart-entitymodel/ Sorry for jumping in but wanted to make sure I get this right. In the example given above, does it make sense to conditionally set the entity to null within detach() based on whether the object has been persisted (i.e. id != null in my case) or not? My intention is to serialize the model object when that not yet persisted to handle multistep "create" forms etc., making this a generic model implementation for al my CRUD operations. Manos - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: reload model each time
Here's a good article about EntityModel, which does what you want: http://wicketinaction.com/2008/09/building-a-smart-entitymodel/ Christoph Tom Eugelink (2012-04-14 13:38): Another newbie question; it is now the case that each model is serialized between requests and (I presume) stored in the session. I would really prefer if a identifier (primary key + lazy locking versionnr) could be remembered and that each time when Wicket needs the model, it is loaded from the database. Is this possible? Is there something like a ReloadingModel? Tom - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: reload model each time
Look at LoadableDetachableModels . Josh. On Sat, Apr 14, 2012 at 2:38 PM, Tom Eugelink wrote: > > Another newbie question; it is now the case that each model is serialized > between requests and (I presume) stored in the session. I would really > prefer if a identifier (primary key + lazy locking versionnr) could be > remembered and that each time when Wicket needs the model, it is loaded > from the database. > > Is this possible? Is there something like a ReloadingModel? > > Tom > > > > --**--**- > To unsubscribe, e-mail: > users-unsubscribe@wicket.**apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > >
reload model each time
Another newbie question; it is now the case that each model is serialized between requests and (I presume) stored in the session. I would really prefer if a identifier (primary key + lazy locking versionnr) could be remembered and that each time when Wicket needs the model, it is loaded from the database. Is this possible? Is there something like a ReloadingModel? Tom - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Manipulate a List into a Panel
Thanks for your reply. I have a better understanding about what i should do to set visibility. But adresseService is not a "real service" or a database access. Because my data access layer is a call to a web service. So i call one time a web service and so I have a cluster object with wich I have to manipulate to retrieve the rights informations. Should I still use a AROM or LDM? Because everytime I call getObject() I will invoke adresseService.getLesAdressesDeLaCommande(). -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Manipulate-a-List-into-a-Panel-tp4555471p4556950.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
