Java tutorial
/* * Copyright 2009 IT Mill Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package de.holisticon.emapp; import com.vaadin.Application; import com.vaadin.ui.Window; import de.holisticon.emapp.handler.LoginHandler; import de.holisticon.emapp.handler.LogoutHandler; import de.holisticon.emapp.ui.LoginComponent; /** * The Application's "main" class */ @SuppressWarnings("serial") public class EmployeeManagerApp extends Application { private Window window; @Override public void init() { ApplicationEventBus.register(new LoginHandler(this)); ApplicationEventBus.register(new LogoutHandler(this)); window = new Window("My Vaadin Application"); setMainWindow(window); window.setContent(new LoginComponent()); } public void logout() { window.setContent(new LoginComponent()); close(); // ((WebApplicationContext)getContext()).getHttpSession().invalidate(); } }