How should I design my datalayer so I could potentially swap out nHibernate with linqToSql?

Question

So I'm going with nHibernate, but want to design my datalayer so I could potentially swap out (or switch) to a linqToSql layer.

How should I go about designing this?

Should I make an interface that has all my database calls?

Something like this?

GetUser();
InsertUser();

Answer 1

Yes use the repository pattern. Look it up.

Answer 2

Good Example of the Repository Pattern

Answer 3

Look at the usage of repository pattern in this article and you may get a good idea.

http://ayende.com/Blog/archive/2007/06/08/Rhino-Commons-RepositoryltTgt-and-Unit-Of-Work.aspx