[keycloak-dev] federation iteration 2

[Bill Burke]

* UserProvider interface stayed the same
* Didn't add a UserFederation interface like I said I was going to, 
didn't have to.
* UserFederationProvider interface no longer extends UserProvider and is 
smaller
* UserFederationProvider no longer supports pagination
* UserFederationProvider no longer supports getUsers().  This is a very 
dangerous method for large databases since we can't reliable support 
pagination.

How does pagination work now?

* getUsers() only queries local storage
* search() methods will call searchByAttributes() on every provider. 
Then paginate based on local storage.  This may result in long query 
times (and database inserts) depending how many people of the same name 
there are.  In a database of 1 million, not sure what the distribution 
will be.  For example, the most popular US name is "Smith" there are 2.8 
million which is less than 1% of the USA.

But, I'm not sure what to do.  Admins *MUST* be able to search based on 
names.  What would reduce the search would be to require both first and 
last name.

-- 
Bill Burke
JBoss, a division of Red Hat
http://bill.burkecentral.com