Java tutorial
/******************************************************************************* * Copyright (c) 2014 Ministry of Transport and Communications (Finland). * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Semantum Oy - initial API and implementation *******************************************************************************/ package fi.semantum.strategia; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.vaadin.annotations.VaadinServletConfiguration; import com.vaadin.server.BootstrapFragmentResponse; import com.vaadin.server.BootstrapListener; import com.vaadin.server.BootstrapPageResponse; import com.vaadin.server.SessionInitEvent; import com.vaadin.server.SessionInitListener; import com.vaadin.server.VaadinServlet; @VaadinServletConfiguration(productionMode = false, ui = Main.class, widgetset = "fi.semantum.strategia.widgetset.Fi_semantum_strategiaWidgetset") public class Servlet extends VaadinServlet { private static final long serialVersionUID = 8413467755686759773L; @Override protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { super.service(request, response); } @Override protected void servletInitialized() throws ServletException { super.servletInitialized(); getService().addSessionInitListener(new SessionInitListener() { private static final long serialVersionUID = 8234186352463637883L; @Override public void sessionInit(SessionInitEvent event) { event.getSession().addBootstrapListener(new BootstrapListener() { private static final long serialVersionUID = 7535841016176448694L; @Override public void modifyBootstrapFragment(BootstrapFragmentResponse response) { } @Override public void modifyBootstrapPage(BootstrapPageResponse response) { } }); } }); } }