[Opensource] Controller examples for Expresso 5.0.3

[Ron Fromm]

Hi there,

just wondering if there is a working (!) 5.0 example with sourcecode for the
following task:

1) Having a jsp, showing some selected data from a DBObject
2) Having a user, who can change some entries
3) Having a button on that jsp, that sends this changed data to a customized
controller
4) Having the controller running checks on the data and in case of error,
presenting some hints on jsp
5) Forcing this controller to store the data using a DBObject if everything
is correct

I know how to do that in struts, but expresso confused me concerning that
aspect, documentation does not give me many hints.

Thanks in advance,
Ron