nhibernate - Advice data acces pattern without repository -

i want access isession directly application services (without using repository (http://ayende.com/blog/3955/repository-is-the-new-singleton)) application services unit test hard , nhibernate data access code increase complexity of code (no repository mock , don't want mock repository or in memory db sqllite testing)

is there efficient way access isession service layer?

i use sessionhelper holds isessionfactory - , have methods this:

    public t wrapqueryintransaction<t>(func<isession, t> query)     {         using (var tx = session.begintransaction())         {             try             {                 var result = query(session);                 tx.commit();                 return result;             }         }     } 

i have similar methods common functionality - ie. xxxupdaters loads object in question, makes updates , closes isession again.

and usage follows queries:

var entities = _sessionhelper.wrapqueryintransaction(s => s.queryover<someentity>().list()); 

for complex queries have these incapsulated in query class can thrown @ sessionhelper.

it works me - hope can use it.