i don't think you got me i'm talking about a regular entity that has (well not anymore, but i wanted it to have) a method with an out parameter -> regular method
public virtual int Method(out string outString) something like that and the linfu fails to create a proxy just because the out parameter On Fri, May 7, 2010 at 4:06 PM, John Davidson <[email protected]> wrote: > See http://www.richter-web.info/Wordpress/?p=132 which may help. It gives > one method of accessing output parameters using NHibernate, but in a more > ADO type approach. > > John Davidson > > On Fri, May 7, 2010 at 8:42 AM, nadav s <[email protected]> wrote: > >> the LinFu proxy is failing when fatching a child entity that its father >> (many-to-one) has a method with out parameter. >> removing the out parameter from the method makes it work fine >> >> is it a known bug? >> i don't know how hard it is to make it work cause i don't know >> Reflection.Emit very well, but i think there at least should be a good error >> method. >> the inner exception message i get below is >> just System.ArgumentNullException: Value cannot be null.Parameter name: type >> >> the outer exception is just "Creating a proxy instance failed". >> took a lot of time to figure out that the out parameters method is the one >> causing the trouble >> >> father entity: >> >> public class Department >> { >> public virtual int Id { get; set; } >> public virtual IDictionary<int,Employee> Employees {get;set;} >> >> public virtual void OutParametersMethod(out string outString) >> { >> outString = ""; >> } >> } >> >> the child: >> >> public class Employee >> { >> public virtual int Id { get; set; } >> >> public virtual Department Department { get; set; } >> } >> >> The mapping of the many to one (in Employee.hbm.xml) (is trivial): >> >> <many-to-one name="Department" class="TestVSOracle.Entities.Department, >> TestVSOracle" >> column="DEPARTMENT_ID" not-null="false" lazy="proxy"/> >> >> >> >> >> >> full exception.ToString(): >> >> >> NHibernate.HibernateException: Creating a proxy instance failed ---> >> System.ArgumentNullException: Value cannot be null.\r\nParameter name: type >> >> >> at System.Reflection.Emit.ModuleBuilder.GetTypeTokenWorkerNoLock(Type >> type, Boolean getGenericDefinition)\r\n at >> System.Reflection.Emit.ModuleBuilder.GetTypeTokenInternal(Type type, Boolean >> getGenericDefinition)\r\n at >> System.Reflection.Emit.ILGenerator.Emit(OpCode opcode, Type cls)\r\n at >> LinFu.DynamicProxy.DefaultMethodEmitter.SaveRefArguments(ILGenerator IL, >> ParameterInfo[] parameters)\r\n at >> LinFu.DynamicProxy.DefaultMethodEmitter.EmitMethodBody(ILGenerator IL, >> MethodInfo method, FieldInfo field)\r\n at >> LinFu.DynamicProxy.DefaultyProxyMethodBuilder.CreateProxiedMethod(FieldInfo >> field, MethodInfo method, TypeBuilder typeBuilder)\r\n at >> LinFu.DynamicProxy.ProxyFactory.CreateUncachedProxyType(Type[] >> baseInterfaces, Type baseType)\r\n at >> LinFu.DynamicProxy.ProxyFactory.CreateProxyType(Type baseType, Type[] >> baseInterfaces)\r\n at LinFu.DynamicPro >> xy.ProxyFactory.CreateProxy(Type instanceType, IInterceptor interceptor, >> Type[] baseInterfaces)\r\n at >> NHibernate.ByteCode.LinFu.ProxyFactory.GetProxy(Object id, >> ISessionImplementor session) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate.ByteCode.LinFu\\ProxyFactory.cs:line >> 22\r\n --- End of inner exception >> >> stack trace ---\r\n at >> NHibernate.ByteCode.LinFu.ProxyFactory.GetProxy(Object id, >> ISessionImplementor session) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate.ByteCode.LinFu\\ProxyFactory.cs:line >> 30\r\n at >> NHibernate.Tuple.Entity.AbstractEntityTuplizer.CreateProxy(Object id, >> ISessionImplementor session) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Tuple\\Entity\\AbstractEntityTuplizer.cs:line >> 236\r\n at >> NHibernate.Persister.Entity.AbstractEntityPersister.CreateProxy(Object id, >> ISessionImplementor session) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Persister\\Entity\\AbstractEntityPersister.cs:line >> 3750\r\n at NHibernate.Event.Default.DefaultLoad >> EventListener.CreateProxyIfNecessary(LoadEvent event, IEntityPersister >> persister, EntityKey keyToLoad, LoadType options, IPersistenceContext >> persistenceContext) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Event\\Default\\DefaultLoadEventListener.cs:line >> 223\r\n at >> NHibernate.Event.Default.DefaultLoadEventListener.ProxyOrLoad(LoadEvent >> event, IEntityPersister persister, EntityKey keyToLoad, LoadType options) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Event\\Default\\DefaultLoadEventListener.cs:line >> 154\r\n at >> NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, >> LoadType loadType) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Event\\Default\\DefaultLoadEventListener.cs:line >> 86\r\n at NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType >> loadType) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Impl\\SessionImpl.cs:line >> 2554\r\n at NHibernate.Impl.SessionImpl.InternalLoad(String entityName, >> Object id, Boolean eager, Boole >> an isNullable) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Impl\\SessionImpl.cs:line >> 1427\r\n at NHibernate.Type.EntityType.ResolveIdentifier(Object id, >> ISessionImplementor session) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Type\\EntityType.cs:line >> 386\r\n at NHibernate.Type.EntityType.ResolveIdentifier(Object value, >> ISessionImplementor session, Object owner) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Type\\EntityType.cs:line >> 424\r\n at NHibernate.Engine.TwoPhaseLoad.InitializeEntity(Object entity, >> Boolean readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, >> PostLoadEvent postLoadEvent) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Engine\\TwoPhaseLoad.cs:line >> 78\r\n at NHibernate.Loader.Loader.InitializeEntitiesAndCollections(IList >> hydratedObjects, Object resultSetId, ISessionImplementor session, Boolean >> readOnly) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loader\\Loader.cs:line >> 592\r\n at NHibernate.Loader.Loa >> der.DoQuery(ISessionImplementor session, QueryParameters queryParameters, >> Boolean returnProxies) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loader\\Loader.cs:line >> 460\r\n at >> NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor >> session, QueryParameters queryParameters, Boolean returnProxies) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loader\\Loader.cs:line >> 236\r\n at NHibernate.Loader.Loader.DoList(ISessionImplementor session, >> QueryParameters queryParameters) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loader\\Loader.cs:line >> 1650\r\n at >> NHibernate.Loader.Loader.ListIgnoreQueryCache(ISessionImplementor session, >> QueryParameters queryParameters) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loader\\Loader.cs:line >> 1569\r\n at NHibernate.Loader.Loader.List(ISessionImplementor session, >> QueryParameters queryParameters, ISet`1 querySpaces, IType[] resultTypes) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loa >> der\\Loader.cs:line 1563\r\n at >> NHibernate.Loader.Criteria.CriteriaLoader.List(ISessionImplementor session) >> in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Loader\\Criteria\\CriteriaLoader.cs:line >> 73\r\n at NHibernate.Impl.SessionImpl.List(CriteriaImpl criteria, IList >> results) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Impl\\SessionImpl.cs:line >> 2001\r\n at NHibernate.Impl.CriteriaImpl.List(IList results) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Impl\\CriteriaImpl.cs:line >> 246\r\n at NHibernate.Impl.CriteriaImpl.List[T]() in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Impl\\CriteriaImpl.cs:line >> 257\r\n at NHibernate.Criterion.QueryOver`1.List[U]() in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Criterion\\QueryOver.cs:line >> 56\r\n at >> NHibernate.Criterion.QueryOver`1.NHibernate.IQueryOver<TRoot>.List[U]() in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\NHibernate\\Criterion\\QueryOver.cs:line >> 148\r\n at TestVSOracle.Program.LearnQuery >> Over(ISession s) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\TestVSOracle\\Program.cs:line >> 143\r\n at TestVSOracle.Program.Main(String[] args) in >> D:\\nhibernate_svn\\trunk\\nhibernate\\src\\TestVSOracle\\Program.cs:line >> 33" >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "nhusers" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<nhusers%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/nhusers?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "nhusers" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<nhusers%[email protected]> > . > For 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