How to call doGetAuthenticationInfo and doGetAuthorizationInfo

[Pham Tran Quoc Viet]

Hi All,
I have two questions:
1) How do I initialize both authentication and authorization at the time of
log-in. I want to do this to avoid querying db twice (one for authentication
and one for authorization)? Any sample code would be the easiest to get me
started.
2) Each time I call currrentUser.login() (just for testing purpose as
multiple login does not happen in real life), doGetAuthenticationInfo is
called. As a result, db is queried. Each time I call
currrentUser.hasRole(), doGetAuthorizationInfo is then called. As a result,
db is queried again. How do I avoid this repeated db queries?

Thanks.