---------- Forwarded message ---------- From: Bruno Sandivilli <bruno.sandivi...@gmail.com> Date: 2011/10/7 Subject: Re: One-To-Many RElations Serialization To: google-web-tool...@googlegroups.com
PersistenceManager pm = PMF.get().getPersistenceManager(); javax.jdo.Query query = (javax.jdo.Query) pm.newQuery(Objetos.class); query.setFilter("name == nameParam"); query.declareParameters("String nameParam"); List<MyInnerList> listaMyInnerList = new ArrayList<MyInnerList>(); List<MyMain> listaMyMainList = (List<MyMain>) query.execute(nameParam); if(listaMyMainList .size() > 0) { listaMyInnerList.addAll(listaMyMainList.get(0).getMyInnerList()); } return new ArrayList(listaMyInnerList); or return listaMyInnerList; it gives the same error of Type 'org.datanucleus.sco.backed.ArrayList' anyone? 2011/10/7 Bruno Sandivilli <bruno.sandivi...@gmail.com> > Thanks Buddy! > But if i'm not using Hibernate? I'm using pure GWT, do i have to use the > <filter> in web.xml? How can i achieve this? Thanks > > > 2011/10/7 Juan Pablo Gardella <gardellajuanpa...@gmail.com> > >> You can see the same problem but with hibernate >> here<http://code.google.com/intl/es/webtoolkit/articles/using_gwt_with_hibernate.html>. >> In this page show some strategies to resolve the problem. In my case I don't >> adopt this strategies. I do a filter. In Pro Web >> 2.0<http://books.google.com/books?id=OG816JSZYVcC&pg=PA159&lpg=PA159&dq=gwt+hibernate+filter&source=bl&ots=BM1JxFq0h9&sig=gTKoh1ZBWs26d5vjRi-7CP4fo20&hl=es&ei=R0OPTu_4GZC1hAfXmc32Dw&sa=X&oi=book_result&ct=result&resnum=7&ved=0CF0Q6AEwBg#v=onepage&q=gwt%20hibernate%20filter&f=false>explain >> the use of a >> *filter*. A class that, in your case, for example convert >> org.datanucleus.sco.backed.List in java.util.List. This filter intercept the >> classes before send to client. Here >> <https://bitbucket.org/gardellajuanpablo/gwt-sample/src/8aba86d82778/src/main/java/com/foo/server/rpc/hibernate/HibernateFilter.java>you >> have an example of a Hibernate filter compatible with GWT 2.4.0 and how >> integrate in a sample project. >> >> Juan >> >> >> >> 2011/10/7 Bruno Sandivilli <bruno.sandivi...@gmail.com> >> >>> How can i serializa this List<MyClass> ? >>> >>> >>> 2011/10/7 Juan Pablo Gardella <gardellajuanpa...@gmail.com> >>> >>>> What's your question? >>>> >>>> 2011/10/6 Bruno Sandivilli <bruno.sandivi...@gmail.com> >>>> >>>>> I'm getting this error when my RPC returns a list of a custom object: >>>>> Type 'org.datanucleus.sco.backed.List' 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. >>>>> >>>>> -- >>>>> 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-tool...@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. >>>>> >>>> >>>> -- >>>> 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-tool...@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. >>>> >>> >>> -- >>> 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-tool...@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. >>> >> >> -- >> 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-tool...@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. >> > > -- 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 google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.