Have you tried setting the HasMany to Inverse?
public class ParentMap : ClassMap<Parent>
{
public ParentMap()
{
Id(x => x.Id)
.GeneratedBy.Identity()
.UnsavedValue(0);
Version(x => x.HB_Version);
Map(x => x.Name, "Name")
.Not.Nullable();
HasMany<ContainerHistory>(x => x.History)
.AsSet()
.LazyLoad()
.Inverse() //here
.Cascade.AllDeleteOrphan();
}
}
RP
On Wednesday, October 9, 2013 8:57:58 PM UTC+1, José Juniors Rocaspana
wrote:
>
> Hello all, I'm running into some issues with NH and child collections.
> Currently I'm using NHibernate + Fluent; t
>
> Here my entities:
>
> public class Parent : Entity
> {
> private ICollection<Child> m_children = new HashedSet<Child>();
>
> public virtual string Name { get; set; }
> public virtual ICollection<Child> Children { get { return m_children;
> } set { m_children = value; } }
> }
>
>
> public class Child : Entity
> {
> public virtual Parent ParentObj { get; set; }
> public virtual String MoreInformation { get; set; }
> }
>
> And here my mappings:
>
> public class ParentMap : ClassMap<Parent>
> {
> public ParentMap()
> {
> Id(x => x.Id)
> .GeneratedBy.Identity()
> .UnsavedValue(0);
> Version(x => x.HB_Version);
> Map(x => x.Name, "Name")
> .Not.Nullable();
> HasMany<ContainerHistory>(x => x.History)
> .AsSet()
> .LazyLoad()
> .Cascade.AllDeleteOrphan();
> }
> }
>
> public class ChildMap : ClassMap<Child>
> {
> public ChildMap()
> {
> Id(x => x.Id)
> .GeneratedBy.Identity()
> .UnsavedValue(0);
> Version(x => x.HB_Version);
> References(x => x.Container).Index("IX_Container");
> Map(x => x.MoreInformation, "MoreInformation").Not.Nullable();
> }
> }
>
> The problem is that whenever I add a new item to the Parent.Children
> collection, an update is performed on all previous child items of the
> collection.. using NHibernate Profiler I found out that only the version
> (HB_Version field) is being updated (incremented by 1 each time I add a new
> item to the collection).
>
> I tried using .Not.OptimisticLock() in the HasMany map and even in the
> References mal (in ChildMap) but the problem remains.
>
> I'm missing something? Or it's the desired behaviour that every time the
> parent is modified all the child elements are updated aswell?
>
> Any help or suggestion will be greatly appreciated!!!
>
> Kind regards,
> José.-
>
> P.S.: Please excuse my english :)
>
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