Data-Centric Applications with Vaadin 8

Implementing a Vaadin UI to list and save Entities

How can we use this from a Vaadin UI? Not a mystery at all, right? Just use Vaadin components and call the MessageRepository class when needed. Let's see it in action! Start by implementing a basic UI that shows a Grid, a TextField, and a Button, something like the following:

Feel free to implement a different layout for it. The following is the implementation corresponding to the previous screenshot:

public class VaadinUI extends UI {    private Grid<Message> grid;    private TextField textField;    private Button button;    @Override    protected void init(VaadinRequest request) {        initLayout();        initBehavior() ...