Children should be IDictionary<Guid, decimal> (I mean the declaration in your class).NH don't know how instantiate and proxy your own collection. If you want use "Distribution" class as collection you should implement a IUserCollectionType.
2009/3/11 David Perfors <[email protected]> > > Hi Tapio, > > The table was deleted, that is fixed now :) > > After changing the mapping a littlebit, it seems to be working for the > dictionary. I now have this mapping: > <?xml version="1.0" encoding="utf-8" ?> > <hibernate-mapping assembly="NHibernateDictionaryTest" > default-cascade="save-update" > default-lazy="false" > namespace="NHibernateDictionaryTest" > xmlns="urn:nhibernate-mapping-2.2"> > <class name="NotaRow"> > <id name="Id" type="Guid"> > <generator class="assigned" /> > </id> > <property name="Description" /> > <property name="ToPay" /> > <map name="Children"> > <key column="NotaRowId" /> > <composite-index class="NotaRow"> > <key-property name="Id" /> > </composite-index> > <!--<index column="NotaRowId" type="Guid" />--> > <element column="Distribution" type="Decimal" /> > </map> > </class> > </hibernate-mapping> > > But when I try to do it with my own Distribution class I get an > exception (again :P) > The class: > public class Distribution<T> : Dictionary<T, Decimal>, IComparable<T> > , IDictionary<T, Decimal> > { > // some calculation methods no custom properties > } > > The exception: > System.Transactions Critical: 0 : <TraceRecord > xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord"; > Severity="Critical"><TraceIdentifier> > http://msdn.microsoft.com/TraceCodes/System/ActivityTracing/2004/07/Reliability/Exception/Unhandled > </TraceIdentifier><Description>Unhandled > > exception</Description><AppDomain>NHibernateDictionaryTest.vshost.exe</AppDomain><Exception><ExceptionType>NHibernate.MappingException, > NHibernate, Version=2.1.0.1001, Culture=neutral, > PublicKeyToken=aa95f207798dfdb4</ExceptionType><Message>Error mapping > generic collection NHibernateDictionaryTest.NotaRow.Children: expected > 2 generic parameters, but the property type has > 1</Message><StackTrace> at > NHibernate.Mapping.Collection.CheckGenericArgumentsLength(Int32 > expectedLength) > at NHibernate.Mapping.Map.get_DefaultCollectionType() > at NHibernate.Mapping.Collection.get_CollectionType() > at NHibernate.Mapping.Map.get_CollectionType() > at NHibernate.Mapping.Collection.get_Type() > at NHibernate.Tuple.PropertyFactory.BuildStandardProperty(Property > property, Boolean lazyAvailable) > at NHibernate.Tuple.Entity.EntityMetamodel..ctor(PersistentClass > persistentClass, ISessionFactoryImplementor sessionFactory) > at > NHibernate.Persister.Entity.AbstractEntityPersister..ctor(PersistentClass > persistentClass, ICacheConcurrencyStrategy cache, > ISessionFactoryImplementor factory) > at > NHibernate.Persister.Entity.SingleTableEntityPersister..ctor(PersistentClass > persistentClass, ICacheConcurrencyStrategy cache, > ISessionFactoryImplementor factory, IMapping mapping) > at > NHibernate.Persister.PersisterFactory.CreateClassPersister(PersistentClass > model, ICacheConcurrencyStrategy cache, ISessionFactoryImplementor > factory, IMapping cfg) > at NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, > IMapping mapping, Settings settings, EventListeners listeners) > at NHibernate.Cfg.Configuration.BuildSessionFactory() > at NHibernateDictionaryTest.Program.Main(String[] args) in > > C:\Projects\NHibernateDictionaryTest\NHibernateDictionaryTest\Program.cs:line > 17 > at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) > at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence > assemblySecurity, String[] args) > at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() > at System.Threading.ThreadHelper.ThreadStart_Context(Object state) > at System.Threading.ExecutionContext.Run(ExecutionContext > executionContext, ContextCallback callback, Object state) > at > System.Threading.ThreadHelper.ThreadStart()</StackTrace><ExceptionString>NHibernate.MappingException: > Error mapping generic collection > NHibernateDictionaryTest.NotaRow.Children: expected 2 generic > parameters, but the property type has 1 > at NHibernate.Mapping.Collection.CheckGenericArgumentsLength(Int32 > expectedLength) > at NHibernate.Mapping.Map.get_DefaultCollectionType() > at NHibernate.Mapping.Collection.get_CollectionType() > at NHibernate.Mapping.Map.get_CollectionType() > at NHibernate.Mapping.Collection.get_Type() > at NHibernate.Tuple.PropertyFactory.BuildStandardProperty(Property > property, Boolean lazyAvailable) > at NHibernate.Tuple.Entity.EntityMetamodel..ctor(PersistentClass > persistentClass, ISessionFactoryImplementor sessionFactory) > at > NHibernate.Persister.Entity.AbstractEntityPersister..ctor(PersistentClass > persistentClass, ICacheConcurrencyStrategy cache, > ISessionFactoryImplementor factory) > at > NHibernate.Persister.Entity.SingleTableEntityPersister..ctor(PersistentClass > persistentClass, ICacheConcurrencyStrategy cache, > ISessionFactoryImplementor factory, IMapping mapping) > at > NHibernate.Persister.PersisterFactory.CreateClassPersister(PersistentClass > model, ICacheConcurrencyStrategy cache, ISessionFactoryImplementor > factory, IMapping cfg) > at NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, > IMapping mapping, Settings settings, EventListeners listeners) > at NHibernate.Cfg.Configuration.BuildSessionFactory() > at NHibernateDictionaryTest.Program.Main(String[] args) in > > C:\Projects\NHibernateDictionaryTest\NHibernateDictionaryTest\Program.cs:line > 17 > at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args) > at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence > assemblySecurity, String[] args) > at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() > at System.Threading.ThreadHelper.ThreadStart_Context(Object state) > at System.Threading.ExecutionContext.Run(ExecutionContext > executionContext, ContextCallback callback, Object state) > at > System.Threading.ThreadHelper.ThreadStart()</ExceptionString></Exception></TraceRecord> > > Any ideas? > > David > > > > -- Fabio Maulo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. 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