Hey Benjamin,
Since u are using Generics ensure that all the classes Service, ServiceAync
and ServiceImpl
use the same signature i.e List<SubCatagory> .
btw which version of gwt are u using.
Also, you can the temp dir where u can find a rpc.log file with the list of
all objects that are serialized.
On Wed, Oct 7, 2009 at 2:20 AM, Benjamin <bsaut...@gmail.com> wrote:
>
> I'm struggeling with this now - did you guys solve it? I have a
> simple client class that will be a parent in a simple parent-child
> relationship. If i add an ArrayList property to the parent class (i
> don't even have to decorate it as persistant) i get
>
> EVERE: [1254861190636000] javax.servlet.ServletContext log: Exception
> while dispatching incoming RPC call
> com.google.gwt.user.client.rpc.SerializationException: 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.
>
> i've tried java.util.list and java.util.arraylist with same result -
> defiitly not a 'org.datanucleus.sco.backed.List'
>
> what's odd is that the RPC call runs in a way and the object is
> persisted but without the list field.
>
> Anyway - this seems like something that can't be passed in an RPC call
> but i don't see why
>
> @PersistenceCapable(identityType = IdentityType.APPLICATION)
> public class Catagory extends BaseTreeModel implements Serializable {
>
> public Catagory() {}
>
> private static final long serialVersionUID = 1L;
> @PrimaryKey
> @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
> @Extension(vendorName="datanucleus", key="gae.encoded-pk",
> value="true")
> private String key;
>
> @Persistent(mappedBy = "catagory")
> private List<SubCatagory> subcatagories;
>
>
> }
>
>
>
> On Sep 22, 5:43 am, Angel <gonzalezm.an...@gmail.com> wrote:
> > i have the same problem
> >
> > On 5 ago, 04:52, mike <m...@introspect.com> wrote:
> >
> >
> >
> > > I have a simple one-to-many betwen two entities. The parent entity
> > > uses List to contain the child entities. I am able to persist these
> > > entities in the datastore without problems.
> >
> > > However, when reading a root entity at the server, I get:
> >
> > > rpc.SerializationException: Type 'org.datanucleus.sco.backed.List' was
> > > not included in the set of types which can be serialized...
> >
> > > The entities are successfully read from the datastore, but something
> > > in Datanucleus doesn't build the List correctly.
> >
> > > Has anyone found a workaround for this serialization problem.
> >
> > > Thanks
> >
> > > GWT 1.7 GAE 1.2.2- Hide quoted text -
> >
> > - Show quoted text -
> >
>
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