Nhibernate ValueType Collection as delimited string in DB

Posted by JWendel on Stack Overflow See other posts from Stack Overflow or by JWendel
Published on 2008-11-26T10:01:47Z Indexed on 2010/04/10 22:03 UTC
Read the original article Hit count: 327

Filed under:

nhibernate

|

nhibernate-mapping

Hi

I have a legacy db that I am mapping with Nhibernate. And in several locations a list och strigs or domain objects are mapped as a delimited string in the database. Either 'string|string|string' in the value type cases and like 'domainID|domainID|domainID' in the references type cases.

I know I can create a dummy property on the class and map to that fields but I would like to do it in a more clean way, like when mapping Enums as their string representation with the EnumStringType class.

Is a IUserType the way to go here?

Thanks in advance /Johan

© Stack Overflow or respective owner

Related posts about nhibernate

How can I eager-load a child collection mapped to a non-primary key in NHibernate 2.1.2?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I have two objects with a many-to-many relationship between them, as follows: public class LeftHandSide { public LeftHandSide() { Name = String.Empty; Rights = new HashSet<RightHandSide>(); } public int Id { get; set; } public string Name { get; set;… >>> More
Nhibernate transactions:Avoiding Nhibernate dependency in the service layer

as seen on Stack Overflow - Search for 'Stack Overflow'
One of practices advocated by Nhibernate experts is to do all actions in inside a transaction. In a typical 3 tier web architecture, Nhibernate depedency is limited the data layer. In such a case is it fine to use using (var tr = NHibernateSession.Current.BeginTransaction()) { at the controller… >>> More
Nhibernate 2.1 and mysql 5 - InvalidCastException on Setup

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello there, I am trying to use NHibernate with Spring.Net und mySQL 5. However, when setting up the connection and creating the SessionFactoryObject, I get this InvalidCastException: NHibernate seems to cast MySql.Data.MySqlClient.MySqlConnection to System.Data.Common.DbConnection which causes… >>> More
Series of abstract classes and NHibernate

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, and first off thanks for your time to look at this. For a research project I'm working on, I have a somewhat complex design (which I've been given) to persist to a database via NHibernate. Here's an example of the class hierarchy: TransitStrategy, TransportationCompany and TransportationLocation… >>> More
Using Time columns with NHibernate, Fluent NHibernate and SQL Server 2008

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I have a table with a time column in my SQL Server 2008 database. The property of the object I'm trying to map to is a TimeSpan. How can i tell FluentNHibernate to use the TimeAsTimeSpan NHibernate type, so that I don't have cast problems? >>> More

Related posts about nhibernate-mapping

Need help with NHibernate / Fluent NHibernate mapping

as seen on Stack Overflow - Search for 'Stack Overflow'
Let's say your have the following table structure: ============================== | Case | ============================== | Id | int | | ReferralType | varchar(10) | … >>> More
Nhibernate mapping

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All I am trying to map Users to each other. The senario is that users can have buddies, so it links to itself I was thinking of this public class User { public virtual Guid Id { get; set; } public virtual string FirstName { get; set; } public virtual string LastName… >>> More
Mapping a collection of enums with NHibernate

as seen on Stack Overflow - Search for 'Stack Overflow'
Mapping a collection of enums with NHibernate Specifically, using Attributes for the mappings. Currently I have this working mapping the collection as type Int32 and NH seems to take care of it, but it's not exactly ideal. The error I receive is "Unable to determine type" when trying to map the… >>> More
Multiple tables\objects in one nHibernate mapping

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Folks I am trying to create an nHibernate mapping for a class structure like so: class UserDetails{ Guid id; User user; Role role; public User UserInfo{ get;set; } public Role UserRoles{ get;set; } public Guid ID{ Get; set; } } class… >>> More
(Fluent)NHibernate: Mapping an IDictionary<MappedClass, MyEnum>

as seen on Stack Overflow - Search for 'Stack Overflow'
I've found a number of posts about this but none seem to help me directly. Also there seems to be confusion about solutions working or not working during different stages of FluentNHibernate's development. I have the following classes: public class MappedClass { ... } public enum MyEnum { … >>> More