| Interface | Description | 
|---|---|
| CurrentUserProvider | 
 Component which:
 
  test if the current logged in user is the super user. 
 | 
| Class | Description | 
|---|---|
| User | 
 Implementation of the principal abstraction to represent an user with a login
 and eventually a fullname and an email. 
 | 
| UserIdentity | 
 Class containing a user identity, i.e. 
 | 
| UserManager | 
 Component for getting user list and verify the presence of a particular user on a context or for user directory(ies). 
 | 
| Exception | Description | 
|---|---|
| InvalidModificationException | 
 Exception for bad modification of the users list. 
 |