NHibernate Generics

dagda1 · **Joined:** Fri May 05, 2006 11:54 am **Posts:** 51

Hi,

Where can I find information on how to use Generics and Nullable types that are now available with NHibernate 1.2.

Thanks

Paul

guymahieu · **Joined:** Sat Sep 09, 2006 5:55 am **Posts:** 23

dagda1 wrote:

Hi,

Where can I find information on how to use Generics and Nullable types that are now available with NHibernate 1.2.

Thanks

Paul

My best guess would be the doc folder that comes with the installation.

For generics it basically it comes down to setting the 'generic="true" attribute on collections in your mapping files:

Code:

and setting the type of the collection in your entity to a generic one, like ISet<SomeType>

For nullable types your property mapping would look like:

Code:

and the type of this property in your entity would be double? or Nullable<double>.

gert · **Joined:** Thu Jan 19, 2006 4:29 pm **Posts:** 348

guymahieu wrote:

dagda1 wrote:

Hi,

Where can I find information on how to use Generics and Nullable types that are now available with NHibernate 1.2.

Thanks

Paul

My best guess would be the doc folder that comes with the installation.

For generics it basically it comes down to setting the 'generic="true" attribute on collections in your mapping files:

Code:

and setting the type of the collection in your entity to a generic one, like ISet<SomeType>

For nullable types your property mapping would look like:

Code:

and the type of this property in your entity would be double? or Nullable<double>.

I think You do not need to consider generics/nullables at all when writing mapping. Just use them in code.

Gert