Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.vphakala; import com.vaadin.annotations.Theme; import com.vaadin.server.VaadinRequest; import com.vaadin.spring.annotation.SpringUI; import com.vaadin.ui.*; import com.vaadin.ui.TabSheet.SelectedTabChangeEvent; import org.springframework.beans.factory.annotation.Autowired; @SpringUI @Theme("valo") public class VaadinUI extends UI { @Autowired private CustomerService customerService; @Autowired private SubscriberService subscriberService; TabSheet mainLayout; CustomerUI customerTab; SubscriberUI subscriberTab; @Override protected void init(VaadinRequest request) { customerTab = new CustomerUI(customerService); subscriberTab = new SubscriberUI(subscriberService); mainLayout = new TabSheet(); mainLayout.addSelectedTabChangeListener(new TabSheet.SelectedTabChangeListener() { public void selectedTabChange(SelectedTabChangeEvent event) { TabSheet tabsheet = event.getTabSheet(); Layout tab = (Layout) tabsheet.getSelectedTab(); if (tab == subscriberTab) { subscriberTab.setUIFields(customerTab.getEmail().getValue()); } else if (tab == customerTab) { // no action needed } else { Notification.show("*** shit happens ***"); } } }); mainLayout.addTab(customerTab); mainLayout.addTab(subscriberTab); setContent(mainLayout); } }