Comments on: Fluent NHibernate SubClass syntax changes

By: Rex Morgan

Rex Morgan — Mon, 19 Jul 2010 21:23:36 +0000

This has been deprecated. Currently, to do this you can create another mapping that inherits from SubclassMap.

Just posting in case someone stumbles on this like I did.

http://wiki.fluentnhibernate.org/Fluent_mapping#Subclasses for more information.

By: links for 2009-07-22 « Praveen’s Blog

links for 2009-07-22 « Praveen’s Blog — Thu, 23 Jul 2009 00:08:36 +0000

[...] James Gregory – Fluent NHibernate SubClass syntax changes (tags: blog blogs fluent fluentnhibernate nhibernate) [...]

By: Dragos Haiduc

Dragos Haiduc — Tue, 26 May 2009 10:56:20 +0000

Hi James,

When using this approach, only table A is created for all given types.

How can I have a table per subtype using this synthax?

By: James Gregory

James Gregory — Mon, 27 Apr 2009 11:34:30 +0000

Please ask on the Fluent NHibernate mailing list.

By: Luiz Sergio

Luiz Sergio — Thu, 23 Apr 2009 18:10:58 +0000

How can I to create a mapping when a Person can be Employee and/or Customer and/or Supplier, using FNH?

By: James Gregory

James Gregory — Mon, 30 Mar 2009 17:00:43 +0000

Sorry but your comment got stuck in limbo for a bit there. I'd suggest you hit the mailing list for support as you're much more likely to get a response. As for your particular question, I'm afraid you're out of luck right now. We don't currently support that scenario, but we are very much aware of a need for it.

By: kosalanp

kosalanp — Wed, 25 Mar 2009 19:13:40 +0000

How do you do the same with .hbm files? meaning, 1 .hbm file per sub class (can ignore the super class) ? Its like, all 3 classes mapped to 1 table, but in 2 hbm files? (hope you know what i meant).

By: kiwisurfer

kiwisurfer — Wed, 18 Mar 2009 16:17:23 +0000

I’m trying to work out the following scenario with regards to Fluent NHibernate notation for the following:

public class A { }

public class B : A { }

public class C : B { }

public class D : B { }

Where the persisted data for class B, class C and class D are all stored in different tables to A.

If the discriminator for type C and D is stored in table B and is a simple char field, what notation is required to:

1) Allow for a 1-to-1 relationship between the parent and subtype record in table B and table C
2) Allow for a 1-to-1 relationship between the parent and subtype record in table B and table D?

By: lieben

lieben — Fri, 06 Mar 2009 03:27:11 +0000

Interessante Informationen.

By: Guido

Guido — Wed, 11 Feb 2009 08:26:44 +0000

public MapSample() {
  Id(x => x.Id);
  //stringa da un type
  DiscriminateSubClassesOnColumn("Type")
    .SubClass(m =>{
      m.Map(x => x.BProperty);
    })
    .SubClass(m =>{
      m.Map(x => x.CProperty);
    });        
}

public class A :entity.Entity /*Entity holds the Id */
{}  
   
public class B : A  
{  
  public virtual string BProperty { get; set; }  
}  

public class C : A  
{  
  public virtual string CProperty { get; set; }  
}

This little Fixture is required -pun intended. Admittedly it's obvious, yet... Thank you, I like it.