You need to implement your own IUserType. See this blog post for details. I’ll also paste the relevant section below in case the blog disappears. In NHibernate, a custom mapping type is a class that derives from either the IUserType or ICompositeUserType interfaces. These interfaces contain several methods that must be implemented, but for our … Read more
As Matthieu says, the only case where you wouldn’t want to set inverse = true is where it does not make sense for the child to be responsible for updating itself, such as in the case where the child has no knowledge of its parent. Lets try a real world, and not at all contrived … Read more
NHibernate semantics: List: Ordered collection of entities, duplicate allowed. Use a .NET IList in code. The index column will need to be mapped in NHibernate. Set: Unordered collection of unique entities, duplicates not allowed. Use Iesi.Collection.ISet in code (NH prior to v4) or System.Collections.Generic.ISet (NH v4+). It is important to override GetHashCode and Equals to … Read more
I was facing the same problem so I tried to use @Liedman’s code but the GetSerializableMembers() was never get called for the proxied reference. I found another method to override: public class NHibernateContractResolver : DefaultContractResolver { protected override JsonContract CreateContract(Type objectType) { if (typeof(NHibernate.Proxy.INHibernateProxy).IsAssignableFrom(objectType)) return base.CreateContract(objectType.BaseType); else return base.CreateContract(objectType); } }
The way to define this convention changed sometimes ago, it’s now : public class EnumConvention : IUserTypeConvention { public void Accept(IAcceptanceCriteria<IPropertyInspector> criteria) { criteria.Expect(x => x.Property.PropertyType.IsEnum); } public void Apply(IPropertyInstance target) { target.CustomType(target.Property.PropertyType); } }
This is from section 10.7. Automatic state detection of the Hibernate Reference Documentation: saveOrUpdate() does the following: if the object is already persistent in this session, do nothing if another object associated with the session has the same identifier, throw an exception if the object has no identifier property, save() it if the object’s identifier … Read more
Ok, I wrote an example for myself reflecting your structure and this should work: int projectId = 1; // replace that with the id you want // required for the joins in QueryOver Project pAlias = null; Partner paAlias = null; PartnerCosts pcAlias = null; Address aAlias = null; Money mAlias = null; // Query … Read more
The inverse attribute must not be set to true … You use the inverse attribute to specify the ‘owner’ of the association. (An association can have only one owner, so one end has to be set to inverse, the other has to be set to ‘non inverse’). (Owner: inverse=false; Non-owner: inverse=true) In a one-to-many association, … Read more
1.1) First-level cache First-level cache always Associates with the Session object. Hibernate uses this cache by default. Here, it processes one transaction after another one, means wont process one transaction many times. Mainly it reduces the number of SQL queries it needs to generate within a given transaction. That is instead of updating after every … Read more
I just come up to that question, and realized, that there is missing any answer. And it is a shame, while I do often point out this NHibernate documentation statement: 24. Best Practices Don’t use exotic association mappings. Good usecases for a real many-to-many associations are rare. Most of the time you need additional information … Read more