I believe you've found this bug: http://code.google.com/p/google-web-toolkit/issues/detail?id=2374
andreas_b wrote: > Hi all. > > I have searched the forum and google for some answers, but have been > unable to find a direct answer to my question. So sorry if this has > been answered. In that case, please give me the link to that > discussion. > > I'm working on a project where I need to send lots of different data > object over RPC to save them in a database. > I thought, hey let's use some generics and let the type extends > Serializable. > > So I defined the synchronous method like this: > > <T extends Serializable> DBQueryResult<T> saveObject(T aObject); > > and asynchronous version: > > <T extends Serializable> void saveObject(T aObject, > AsyncCallback<DBQueryResult<T>> callback); > > All data types that I pass to this method implements Serializable and > I have verified that they can be sent when defining separate methods > for them. DBQueryResult has also been successfully serialized and > deserialized before I tried to make this generic. > > I get no compilation errors, but during runtime (in hosted mode)I get > the following error: > > 2009-okt-08 10:21:42 > com.google.appengine.tools.development.ApiProxyLocalImpl log > SEVERE: [1254997302431000] javax.servlet.ServletContext log: > DataServiceImpl: An IncompatibleRemoteServiceException was thrown > while processing this call. > com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: > This application is out of date, please click the refresh button on > your browser. ( Could not locate requested method 'saveObject > (java.io.Serializable)' in interface > 'com.borglin.web.teamsite.client.servercomm.DataService' ) > at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:293) > at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall > (RemoteServiceServlet.java:164) > at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost > (RemoteServiceServlet.java:86) > ..... > > > Is it not possible to use generics when defining RPC methods? Is there > any other way to avoid having to define separate methods for each data > object that I need to send over? > > Thanks in advance! > > BR, Andreas > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" 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-web-toolkit?hl=en -~----------~----~----~----~------~----~------~--~---
