I have gone to the site you posted: http://code.google.com/p/lacertae/
but the problem I had was there was lack of appropriate descriptive documentation. I would therefore would like to ask how can I integrate this to GWT designer.
I have also come accross a tutorial located at: http://angel.hurtado.googlepages.com/tutorialgwt2
which explain how to integrate php/mysql back end to GWT but my last question was how can I integrate all that to GWT designer for effective output and also will it be possible to have a dynamic field and data output while working on it? that can help in a debugging.
looking forwared to hear from you and sincerely apologized for disturbing you.