Question

I have some difficulties implementing the repository and service pattern in my RavenDB project. The major concern is how my repository interface should look like because in RavenDB I use a couple of indexes for my queries.

Let’s say I need to fetch all items where the parentid equals 1. One way is to use the IQueryable List() and get all documents and then add a where clause to select the items where the parentid equals 1. This seems like a bad idea because I can’t use any index features in RavenDB. So the other approach is to have something like this, IEnumerable Find(string index, Func predicate) in the repository but that also seems like a bad idea because it’s not generic enough and requires that I implement this method for if I would change from RavenDB to a common sql server.

So how can I implement a generic repository but still get the benefits of indexes in RavenDB?

Answer 1

This post sums it all up very nicely:

http://novuscraft.com/blog/ravendb-and-the-repository-pattern