What is the difference between the terms factory, provider and service?
Just getting into nhibernate and its repository pattern (POCO classes, etc).
+4
A:
Factory: Assembles classes, either by composing a bunch of bits together, or choosing type based on some kind of context
Provider: Provider is something microsoft "invented" (basically an abstract factory pattern) that is a way of doing a factory of factories, or having a common factory interface which allows factories to be swappable. It is used all over in the MS web stack as a way to keep components configurable.
Service: A service is a group of related functionality. Think of it as if you are splitting your architecture horizontally, you have a "Business Logic" layer, if you split that vertically you will have services.
Matt Briggs
2009-12-04 21:06:35
A service can also have the notion of having no state.. it operates on other objects to do its services, without having a state on its own. At least in Domain Driven Design.
Mike Gleason jr Couturier
2009-12-04 21:27:16
A:
Answer would be long enough to fill a book. They are all patterns. What each one is, you can find easily if you google for it. But they correlate to what these terms are in everyday life.
epitka
2009-12-04 21:06:57