Kinda late question about the new getProperty() implementation

Hi list,

sorry for this not very clever question - I need to figure this one
really quick.
In my application, I used calls to getProperty like
$LU->getProperty(handle) or $LU->getProperty(authUserId). After the
upgrade, these give me NULL of course. I understand what has been
changed and it's a good change to make it more flexible, but what do I
need to my config array in order to make my application work with the
old calls?

I am using the DB(MySql) storage container...

TIA,
Benedikt