nhibernate

问题 The application uses ADO.NET to invoke sprocs for nearly every database operation. Some of these sprocs also contain a fair amount of domain logic. The data access logic for each domain entity resides in the domain class itself. ie, there is no decoupling between domain logic and data access logic. I'm looking to accomplish the following: decouple the domain logic from the data access logic make the domain model persistence ignorant implement the transition to NHibernate gradually across

问题 Is it possible to parse criteria from string? 回答1: You're not giving anyone much to go on, so I'll just have to take a guess at what you're trying to ask... If you're looking for a simple criteria.Parse("string here"); then no, I don't such a thing exists. However, the criteria interface lends itself very well to dynamic creation (in fact, that's its intended purpose). As such, yes, you could write a string parser to create ICriteria elements from tokens. Perhaps if you provide more

问题 I have a project by NHibernate (version 2.1). For upgrade to NHibernate 3.2, what should I do? Do I need that upgrade following dll? Antlr3.Runtime Castle.Core Castle.DynamicProxy2 NHibernate.ByteCode.Castle I could not find those dll in NHibernate 3.2. Now what should I do? 回答1: They are not needed any more. Just delete all dlls that are not there any more (except maybe log4net, that's now optional but without it there won't be any logging). You might also get errors in your hibernate.cfg

问题 I have a project by NHibernate (version 2.1). For upgrade to NHibernate 3.2, what should I do? Do I need that upgrade following dll? Antlr3.Runtime Castle.Core Castle.DynamicProxy2 NHibernate.ByteCode.Castle I could not find those dll in NHibernate 3.2. Now what should I do? 回答1: They are not needed any more. Just delete all dlls that are not there any more (except maybe log4net, that's now optional but without it there won't be any logging). You might also get errors in your hibernate.cfg

问题 Right now I'm using the Criteria API and loving it, but it would be even better if I could make the switch to the QueryOver API. However, my setup is a little strange. In order to partition data into tables, I have one base abstract class: Listing and a number of classes which inherit from that: Listing_UK Listing_US etc. With the criteria API, I can do something like: Type t = typeof(Listing_UK); if (condition) t = typeof(Listing_US); DbSession.CreateCriteria(t) .Add(Restriction.Eq("field"

问题 I have an MVC project that I'm trying to setup a nice paging solution for. I have several tables in SQL Server that have several thousand rows that I would like to be able to page through. If I don't have any type of filter to apply to the paging, it works great. This is the method I'm using to do that: public virtual PagedList<T> GetPagedData(int startIndex, int count) { var rowCount = session.CreateCriteria(typeof(T)).SetProjection(Projections.RowCount()).FutureValue<Int32>().Value; var

问题 What I'm trying to do is get object data from session. Code below should make clear all: //Type of object which i need to get in runtime Type someUnknownType = typeof(someObject); int id = 1; // for example // here i got error cannot resolved someUnknownType ISession.Get<someUnknownType>(id); How can I do that? Edit: someObject is instance variable. 回答1: First, you have a mistake: if someObject is an instance variable, you can't call typeof(someObject) . You can only call someObject.GetType()

问题 I have the following method in my repository. This works fine, my orderItems are initialised as intended however orderItems contains another collection called OrderItemAddress. These are not initialised. How would i do this? public Model.Order Get(int id) { using (ISession session = NHibernateHelper.OpenSession()) { Model.Order order = session .CreateCriteria(typeof(Model.Order)) .Add(Restrictions.Eq("Id", id)) .UniqueResult<Model.Order>(); NHibernateUtil.Initialize(order.OrderItems); return

问题 Assume that I have Person and Address Classes and they have different tables in DB. One Person can have one Address Class in it. This is the important part for me. One Person can have only one Address as it s child element and i want to keep them in different tables in DB. Normally i know that i need to hold them in the same table, but my scenario needs this. (and also it looks like a one-to-many but i dont want to have a collection just for one object) Person Address ------- ------- id id

问题 Considering this example as a base example. I created the application but when I execute this application getting the following error. The ProxyFactoryFactory was not configured. Initialize 'proxyfactory.factory_class' property of the session-factory configuration section with one of the available NHibernate.ByteCode providers. Example: NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu Example: NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle