This is an example, available and working in production, to create all ObsevableCollections for WPF http://code.google.com/p/unhaddins/source/browse/trunk/uNhAddIns/uNhAddIns.WPF/Collections/WpfCollectionTypeFactory.cs
<http://code.google.com/p/unhaddins/source/browse/trunk/uNhAddIns/uNhAddIns.WPF/Collections/WpfCollectionTypeFactory.cs>leaving unchanged your mapping. 2009/10/26 Matt Mangold <[email protected]> > > Where is the best place to learn about the ICollectionTypeFactory? > > On Oct 23, 8:26 pm, Fabio Maulo <[email protected]> wrote: > > The way is not IUserCollectionType but ICollectionTypeFactory > > > > 2009/10/22 Matt Mangold <[email protected]> > > > > > > > > > > > > > > > > > My domain objects support custom fields that are stored in such a way > > > that requires metadata and logic to be applied before their values can > > > be stored and retrieved. > > > > > I already have a Custom Field Repository that handles the persistence > > > of custom fields, and I don't want to try to recreate that logic in > > > NHibernate mappings. > > > > > I would however like to support lazy loading of my custom fields. It > > > would be nice if I could somehow trick the proxy into calling my > > > dedicated repository for loading and saving rather than going through > > > the NHibernate engine. > > > > > One way I solved this problem was to implement an interceptor which > > > worked, but I took a performance hit when loading large amounts of > > > data, because the dedicated repository was called each time an entity > > > was loaded. It would be nice instead, if those calls to load custom > > > fields were done lazily! From what I understand lazy loading cannot be > > > done in an interceptor. > > > > > I have looked into implementing a custom user type (IUserType and > > > IUserCollectionType), but the documentation is very limited, and I > > > want to learn if it is even possible to do what I want before I go > > > down the path of trying. > > > > > Here is an example of one of my domain objects: > > > > > public class ContactEntity : ICustomFieldContainer > > > { > > > public long ContactId { get; set; } > > > public String FirstName { get; set; } > > > public String LastName { get; set; } > > > > > #region ICustomFieldContainer Members > > > public List<CustomFieldEntity> CustomFields { get; set; } > > > #endregion > > > } > > > > -- > > Fabio Maulo- Hide quoted text - > > > > - Show quoted text - > > > -- Fabio Maulo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
