EDIT

import com.vaadin.navigator.View;

import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

import com.vaadin.server.FontAwesome;

import com.vaadin.spring.annotation.SpringView;

import com.vaadin.ui.Alignment;

import com.vaadin.ui.Grid;

    public ListViewBean() {

        layout = new VerticalLayout();

        layout.setSpacing(true);

        Label title = new Label("Registrations");

        title.setStyleName(ValoTheme.LABEL_HUGE);

        layout.addComponent(title);

        layout.setComponentAlignment(title, Alignment.TOP_CENTER);

        Label hint = new Label("This is the list of all your registrations in progress.");

        layout.addComponent(hint);

        layout.setComponentAlignment(hint, Alignment.MIDDLE_CENTER);

        grid = buildGrid();

        layout.addComponent(grid);

        setCompositionRoot(layout);

    }

    private Grid buildGrid() {

        grid.setId("registration-list");

        grid.setCellStyleGenerator(cellRef -> cellRef.getPropertyId().toString());

        grid.setSelectionMode(SelectionMode.NONE);

        // add status as class  attribute to the rows to allow styling with css

        grid.setRowStyleGenerator(rowRef -> {return "status-" + rowRef.getItem().getItemProperty("status").getValue().toString();});

        return grid;