Oct 20, 2008 / nhibernate ~ .net ~ linq
Returning IQueryable rather than List

Usually when I write repositories, I end up with code like this:

IList<Order> orders = repos.FindOrdersByStatus(OrderStatus.Packed);

One problem with this is that orders might contain 10,000 records, and I don't really want to pull all that back from the database in one go. What I think I want is this:

IList<Orders> orders = repos.FindOrdersByStatus(OrderStatus.Packed)

FindOrderByStatus is returning an IQueryable rather than IList. The beauty is that every query can be paginated for "free" - no need to modify repository method signatures with pagination fluff. And, pagination is executed in the database yet controlled by any client using the repository class.

Is anyone doing this?

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