Method chaining in Setters of generated entity classes

Hi.
It would be nice if the set-methods of the generated entity classes would return the entity instance itself, so that method chaining is possible.
Example:

$user = new User();
$user->setUsername()
     ->setFirstname()
     ->setEmail();

In PHP 5.4 we can do even more nicer:

$user = new User()
     ->setUsername()
     ->setFirstname()
     ->setEmail();

If this is not wanted by everyone, the console tool could get a new argument to define if method chaining should be used or not.

Implementation of this improvement would be very nice. Thanks.