Vaadin 8.1 - TreeGrid example

gistfile1.txt

package com.example;

import com.vaadin.ui.TreeGrid;
import com.vaadin.ui.VerticalLayout;

/**
 * @author Alejandro Duarte.
 */
public class TreeGridExample extends VerticalLayout {

    private Service service = new Service();

    public TreeGridExample() {
        TreeGrid<Person> tree = new TreeGrid<>(Person.class);
        tree.setColumns("firstName", "lastName");
        tree.setItems(service.findAll(), Person::getTeam);

        addComponent(tree);
    }
}