Oops it right, if i print the caught says : This application is out of date, please click the refresh button on your browser. com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived (RequestCallbackAdapter.java:204) com.google.gwt.http.client.Request.fireOnResponseReceivedImpl (Request.java:264) com.google.gwt.http.client.Request.fireOnResponseReceivedAndCatch (Request.java:236) com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java: 227) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:585) com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) com.google.gwt.dev.shell.mac.MethodDispatch.invoke(MethodDispatch.java: 71) org.eclipse.swt.internal.carbon.OS.ReceiveNextEvent(Native Method) org.eclipse.swt.widgets.Display.sleep(Display.java:3801) com.google.gwt.dev.SwtHostedModeBase.sleep(SwtHostedModeBase.java:241) com.google.gwt.dev.SwtHostedModeBase.processEvents (SwtHostedModeBase.java:236) com.google.gwt.dev.HostedModeBase.pumpEventLoop(HostedModeBase.java: 558) com.google.gwt.dev.HostedModeBase.run(HostedModeBase.java:405) com.google.gwt.dev.HostedMode.main(HostedMode.java:232)
It's strange. What can i do ? Thanks for your help. On 6 mai, 11:01, Paul Robinson <ukcue...@gmail.com> wrote: > Your onFailure method ignores the Throwable it's given. Maybe it > contains something useful? > > > > Ouaibou wrote: > > Hello, > > > I have a problem with the callback of a RPC call. I have post in > > appengine forum because i think it was a problem with the appengine > > datastore, but Max Ross suggests me to post here : > > >http://groups.google.com/group/google-appengine-java/browse_thread/th... > > > In order to summarize : > > > I have two classes AudioFile and Genre. AudioFile as a field of type > > Genre. Both are marked as detachable like Max says me. I add an > > AudioFile in the datastore and then i do a RPC call in the client side > > in order to retrieve the data : > > > this.gtunesService.getAudioFiles(new AsyncCallback<List<AudioFile>>() > > { > > public void onFailure(Throwable caught) { > > SC.say(Gtunes.SERVER_ERROR); > > } > > public void onSuccess(List<AudioFile> result) > > { > > Gtunes.this.audioFiles = result; > > String buf = ""; > > for (AudioFile af : > > Gtunes.this.audioFiles) { > > buf += "genre = " + af.getGenre > > ().getName() + " - " > > + af.getName() > > + "<br />"; > > } > > SC.say(buf); > > } > > }); > > > The problem is in the server side with the following code : > > > public List<AudioFile> getAudioFiles() { > > List<AudioFile> audioFiles = null; > > PersistenceManager pm = PMF.get().getPersistenceManager(); > > > try { > > Query q = pm.newQuery(AudioFile.class); > > q.setOrdering("name"); > > audioFiles = new ArrayList<AudioFile>((List<AudioFile>) > > q.execute > > ()); > > pm.detachCopyAll(audioFiles); > > } finally { > > pm.close(); > > } > > > System.out.println("list = " + audioFiles); > > for (AudioFile audioFile : audioFiles) { > > System.out.println("name = " + audioFile.getName() + > > "\n"); > > } > > > return audioFiles; > > } > > > audioFiles contains my data. But the return has a problem because i > > enter in the onFailure in the client side but without any error. > > > However, i see that if i change the line : > > > audioFiles = new ArrayList<AudioFile>((List<AudioFile>) q.execute()); > > > for : > > > audioFiles = (List<AudioFile>) q.execute(); > > > I have get the following error : > > > 5 mai 2009 22:23:23 > > com.google.appengine.tools.development.ApiProxyLocalImpl log > > SEVERE: [1241555003875000] javax.servlet.ServletContext log: > > Exception > > while dispatching incoming RPC call > > com.google.gwt.user.client.rpc.SerializationException: Type > > 'org.datanucleus.store.appengine.query.StreamingQueryResult' was not > > included in the set of types which can be serialized by this > > SerializationPolicy or its Class object could not be loaded. For > > security purposes, this type will not be serialized. > > at > > com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer > > ialize > > (StandardSerializationPolicy.java:83) > > at > > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali > > ze > > (ServerSerializationStreamWriter.java:591) > > at > > com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write > > Object > > (AbstractSerializationStreamWriter.java:129) > > at > > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter > > $ValueWriter$8.write(ServerSerializationStreamWriter.java:146) > > at > > com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali > > zeValue > > (ServerSerializationStreamWriter.java:530) > > at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java: > > 573) > > at > > com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess > > (RPC.java:441) > > at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse > > (RPC.java:529) > > at > > com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall > > (RemoteServiceServlet.java:166) > > at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost > > (RemoteServiceServlet.java:86) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java: > > 713) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java: > > 806) > > at org.mortbay.jetty.servlet.ServletHolder.handle > > (ServletHolder.java: > > 487) > > at org.mortbay.jetty.servlet.ServletHandler > > $CachedChain.doFilter > > (ServletHandler.java:1093) > > at > > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter > > (TransactionCleanupFilter.java:43) > > at org.mortbay.jetty.servlet.ServletHandler > > $CachedChain.doFilter > > (ServletHandler.java:1084) > > at org.mortbay.jetty.servlet.ServletHandler.handle > > (ServletHandler.java:360) > > at org.mortbay.jetty.security.SecurityHandler.handle > > (SecurityHandler.java:216) > > at org.mortbay.jetty.servlet.SessionHandler.handle > > (SessionHandler.java:181) > > at org.mortbay.jetty.handler.ContextHandler.handle > > (ContextHandler.java:712) > > at org.mortbay.jetty.webapp.WebAppContext.handle > > (WebAppContext.java: > > 405) > > at > > com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > > (DevAppEngineWebAppContext.java:54) > > at org.mortbay.jetty.handler.HandlerWrapper.handle > > (HandlerWrapper.java:139) > > at > > com.google.appengine.tools.development.JettyContainerService > > $ApiProxyHandler.handle(JettyContainerService.java:306) > > at org.mortbay.jetty.handler.HandlerWrapper.handle > > (HandlerWrapper.java:139) > > at org.mortbay.jetty.Server.handle(Server.java:313) > > at org.mortbay.jetty.HttpConnection.handleRequest > > (HttpConnection.java: > > 506) > > at org.mortbay.jetty.HttpConnection$RequestHandler.content > > (HttpConnection.java:844) > > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java: > > 644) > > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java: > > 211) > > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java: > > 381) > > at org.mortbay.io.nio.SelectChannelEndPoint.run > > (SelectChannelEndPoint.java:396) > > at org.mortbay.thread.BoundedThreadPool$PoolThread.run > > (BoundedThreadPool.java:442) > > > I don't know where to see in order to debug. Does someone has an > > idea ? > > > Thanks. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
