Database program

Hello Everybody!

I’m very new in Vaadin and I’d like to upgrade my oldschool database program with it. My program uses Persistence API and Swing connecting to MySQL database through Netbeans:
I would welcome every suggestion how to start this because I’m a little stucked now. I attached a photo as well. My plan is to create two new tables in the gui package and make a new persistence.xml file.

(I’d really stick to do over this existing project instead of make a new one from scretch.)

Thank you for every help and comment.