Hey! don't use wicket + GAE!!! you will have lot of serialization problems and your project will FAIL! you will lose time and money!!!!! bug: http://code.google.com/p/googleappengine/issues/detail?id=2500
Bye! NM On Wed, Sep 29, 2010 at 12:24 PM, Eurig Jones <[email protected]> wrote: > You're probably using the same Wicket setup as I am - Sessions are > stored in the datastore. > > The Jetty local development set-up clearly doesn't emulate the real > thing exactly by the looks of it. But by using LoadableDetachableModel > the list is populated once per request and detached when the component > tree is sent to the db. Everything needs to be serializable for that > to happen. > > What's probably happening is that your local Jetty server doesn't > bother looking at appengine-web.xml at all therefore not picking up > <sessions-enabled>true</sessions-enabled> required for wicket to work > in production. > > Regards, > Eurig Jones > > On Sep 26, 11:56 pm, Meetu Maltiar <[email protected]> wrote: > > This looks like a fine approach as detachable models will make it > > cheaper to Serialize I guess. Were you able to find the reason why it > > gave error before andworksnow? > > I am curious to know what happens when you create a new collection of > > myListObject and not use LoadableDetachableModel. > > > > On Sep 26, 10:46 pm, Eurig Jones <[email protected]> wrote: > > > > > > > > > > > > > > > > > I had the same issue withWicket / JPAcombination. > > > > > My particular problem was that I was using a ListView by passing a > > > List directly into the constructor: > > > > > ListView<Post> listView = new ListView<Post>("id", myListObject) > > > { ... } > > > > > My solution was to instead use a LoadableDetachableModel for the > > > ListView. > > > > > On Aug 20, 7:01 am, Meetu Maltiar <[email protected]> wrote: > > > > > > TheapplicationhasWicket/JPA/Spring. Itworkslocallyon > > > > dev_appserver. After I deploy it on GAE itfailswith the following > > > > track trace. I am failing to understand what might be the cause of > the > > > > error. > > > > > > java.lang.RuntimeException: java.io.NotSerializableException: > > > > org.datanucleus.store.appengine.query.DatastoreQuery$2 > > > > at > > > > > com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager > .java: > > > > 387) > > > > at > > > > > com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(S > essionManager.java: > > > > 364) > > > > at com.google.apphosting.runtime.jetty.SessionManager > > > > $AppEngineSession.save(SessionManager.java:164) > > > > at > > > > > com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionF > ilter.java: > > > > 41) > > > > at org.mortbay.jetty.servlet.ServletHandler > > > > $CachedChain.doFilter(ServletHandler.java:1157) > > > > at > > > > > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans > actionCleanupFilter.java: > > > > 43) > > > > at org.mortbay.jetty.servlet.ServletHandler > > > > $CachedChain.doFilter(ServletHandler.java:1157) > > > > at > > > > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > > > > 388) > > > > at > > > > > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > > > > 216) > > > > at > > > > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > > > > 182) > > > > at > > > > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > > > > 765) > > > > at > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > > > > 418) > > > > at > > > > > com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionH > andlerMap.java: > > > > 238) > > > > at > > > > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > > > > 152) > > > > at org.mortbay.jetty.Server.handle(Server.java:326) > > > > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > > > > 542) > > > > at org.mortbay.jetty.HttpConnection > > > > $RequestHandler.headerComplete(HttpConnection.java:923) > > > > at > > > > > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequ > estParser.java: > > > > 76) > > > > at > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > > > > at > > > > > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceReques > t(JettyServletEngineAdapter.java: > > > > 135) > > > > at > > > > > com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: > > > > 251) > > > > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > > > > $6.handleBlockingRequest(RuntimePb.java:6784) > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- Nicolás Meléndez Java Software Developer Cell: +54 9 1157535454 1) Google App Engine works: 1.a) http://www.clasificad.com.ar (Local free classifieds for housing, sale, services, local community, curses,jobs, and events - GAE/J + Wicket + YUI) 1.b) http://www.chessk.com (Massive multiplayer chess online GAE/J + Applets + Wicket) 2) Linkedin: http://ar.linkedin.com/in/nicolasmelendez -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
