Yes, found my error.. I missed in the example that in the child I have an
enum property.. that one was causing the issue.
Using a convention solved the issue (
http://stackoverflow.com/questions/3531937/enum-to-integer-mapping-causing-updates-on-every-flush
)
Thanks!!
El jueves, 10 de octubre de 2013 10:36:31 UTC-3, Ricardo Peres escribió:
>
> 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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