Add Eager Loading of Related Sub-Entities

[ToddThomson]

Prototyping in progress...

[ToddThomson]

Lazy, or deferred loading of sub-entities is the default manner in which entities are loaded from the database. There are times when entity loading needs to include sub-entities in a single database query. When you know you need sub-entities up front use eager loading.

[ToddThomson]

Eager loading/fetching will utilize remotion's re-linq eager fetching. Integrating this now...

[ToddThomson]

Eager loading of EntityReference and EntityCollection types will utilize:

• FetchOne(), FetchMany ( may rename to FetchReference() and FetchCollection() for consistency reasons )

FetchOne

var query = from p in context.Products.FetchOne( p => p.Supplier )
                   select p;
var products = query.ToList<Product>();

FetchMany

var query = from p in context.Products.FetchMany( p => p.Parts )
                   select p;
var products = query.ToList<Product>();