Hello,
i'm using NHibernate 2.1 and i'm having issues saving object using
components. Here is my mapping :
<class name="Parent" table="Parent" >
...
<many-to-one name="Child" class="Child" cascade="all" />
</class>
<class name="Child" table="Child">
...
<component name="Component" class="Component">
<property name="Value" column="ComponentValue" />
</component>
</class>
So i have a simple structure Parent -> Child -> Component. What i'm
trying to do is to save my Child in cascade when saving my Parent :
1)
Parent parent = new Parent();
Create (parent);
Child child = new Child();
parent.Child = child;
Update (parent);
But the Update raises the following exception :
failed: System.NullReferenceException
à (Object , Object[] , SetterCallback )
à
NHibernate.Bytecode.Lightweight.AccessOptimizer.SetPropertyValues(Object
target, Object[] values)
à
NHibernate.Tuple.Component.PocoComponentTuplizer.SetPropertyValues(Object
component, Object[] values)
à NHibernate.Type.ComponentType.SetPropertyValues(Object component,
Object[] values, EntityMode entityMode)
à NHibernate.Type.TypeFactory.ReplaceAssociations(Object[] original,
Object[] target, IType[] types, ISessionImplementor session, Object
owner, IDictionary copyCache, ForeignKeyDirection foreignKeyDirection)
à
NHibernate.Event.Default.DefaultMergeEventListener.CopyValues(IEntityPersister
persister, Object entity, Object target, ISessionImplementor source,
IDictionary copyCache, ForeignKeyDirection foreignKeyDirection)
à
NHibernate.Event.Default.DefaultMergeEventListener.EntityIsTransient(MergeEvent
event, IDictionary copyCache)
à
NHibernate.Event.Default.DefaultMergeEventListener.OnMerge(MergeEvent
event, IDictionary copyCache)
à NHibernate.Impl.SessionImpl.FireSaveOrUpdateCopy(IDictionary
copiedAlready, MergeEvent event)
...
However, the following codes work fine :
2)
Parent parent = new Parent();
Create (parent);
Child child = new Child()
child.Component = new Component ();
parent.Child = child;
Update (parent);
3)
Parent parent = new Parent ();
Child child = new Child ();
parent.child = child;
Save (parent);
Does anyone see what could be wrong in my code ? To me, it looks like
a bug, but i want to be sure before reporting.
Thanks,
Ben
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