Make a SQL Query to Nhibernate

Question

How do I get this SQL query to Nhibernate?

SELECT Customer.name
FROM Company INNER JOIN Customer ON Company.CompanyId = Customer.CompanyId
where CompanyId = 2
         


        

Answer 1

Assuming you've got a company which represents the company with ID 2. You can use an ICriterion:

return this.GetSession().CreateCriteria()
    .Add(Restrictions.Eq("Company", company))
    .List();

This will return a list of the Customers associated with the company (assuming the property on the Customer class is called "Company").

To get the names just do:

customers.Select(c => c.name);

I'd suggest this approach as you know all the customers will be loaded in one db hit rather than lazily loading them one at a time.