once again trying to send this mail thanks!
________________________________ Von: Agent Mahone <[email protected]> An: [email protected] Gesendet: Freitag, den 6. Februar 2009, 01:06:50 Uhr Betreff: AW: java.lang.ClassCastException in ListMultipleChoice Hi, here my example: ### CarSearchPanel ### // create formular Form form = new Form("form"); BoundCompoundPropertyModel model = new BoundCompoundPropertyModel(new CarSearchModel()); form.setModel(model); ... // add cars ChoiceRenderer carRenderer = new ChoiceRenderer(); carRenderer..put("1", "Mercedes"); // key, value carRenderer.put("2", "BMW"); carRenderer.put("3", "Porsche"); ListMultipleChoice listMultipleChoice = new ListMultipleChoice("cars", new Model(), renderer.getKeys(), renderer); // multiple selections possible form.add(model.bind(listMultipleChoice, "cars")); ... ### CarSearchModel ### private List<Car> cars; public List<Car> getCars() { return cars; } public void setCars(List<Car> cars) { this.cars = cars; } In SearchDao class, I iterate through a List of Car objects. java.lang.ClassCastException: java.lang.String cannot be cast to com.myproject.model.core.Car at com.myproject.dao.SearchDao$7.doInHibernate(SearchDao.java:332) at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:419) at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339) at com.myproject.dao.SearchDao.searchCars(SearchDao..java:313) at com.myproject.usecase.core.search.SearchUseCase.searchCar(SearchUseCase.java:91) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.wicket.proxy.LazyInitProxyFactory$JdkHandler.invoke(LazyInitProxyFactory.java:416) at org..apache.wicket.proxy.$Proxy6.searchCar(Unknown Source) at com.myproject.web.component.content.search.car.CarSearchPanel$4.onFormSubmit(CarSearchPanel.java:174) at com.myproject.web.markup.button.FormSubmitButton$3..onSubmit(FormSubmitButton.java:117) at org.apache.wicket.ajax.markup..html.form.AjaxFallbackButton$1.onSubmit(AjaxFallbackButton.java:72) at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:128) at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:163) at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:297) at org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:100) at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:91) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1175) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1252) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1353) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:355) at org.apache.wicket.protocol.http.WicketServlet.doPost(WicketServlet.java:145) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) 2009-02-06 00:35:51,109 ERROR [http-8080-2] com.myproject.web.MyApplication: java.lang.String cannot be cast to com.myproject.model.core.Car ________________________________ Von: Stefan Lindner <[email protected]> An: [email protected] Gesendet: Donnerstag, den 5. Februar 2009, 23:44:16 Uhr Betreff: RE: java.lang.ClassCastException in ListMultipleChoice And a little bit of example's code too. -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Thomas Mäder Gesendet: Donnerstag, 5. Februar 2009 23:38 An: [email protected] Betreff: Re: java.lang.ClassCastException in ListMultipleChoice Stack trace please? On Thu, Feb 5, 2009 at 10:16 PM, Agent Mahone <[email protected]> wrote: > Hi guys, I have a simple question. > > I´m using a ListMultipleChoice in my form. > The selected items should be binded to "Car.color" as "List<Car> cars". > > If I bind the ListMultipleChoice to "cars", I´ll get a > java.lang.ClassCastException > because wicket trys to map a List<String> to List<Car>. > > java.lang.ClassCastException: java.lang.String cannot be cast to > com.***.***.Car > > Any ideas??? > > Thanks for your help > > > > -- Thomas Mäder Wicket & Eclipse Consulting www.devotek-it.ch --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
