Java tutorial
/* * This file is part of RaceTrace-Adminpanel * Copyright (C) 2012 Vaadin Oy * Copyright (C) 2013 Jonni Nakari <jonni@egarden.fi> * RaceTrace-Adminpanel is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * RaceTrace-Adminpanel is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package fi.racetrace.adminpanel.ui; import com.vaadin.navigator.View; import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent; import com.vaadin.server.ExternalResource; import com.vaadin.server.Page; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.Label; import com.vaadin.ui.Link; import com.vaadin.ui.Notification; import com.vaadin.ui.Panel; import com.vaadin.ui.VerticalLayout; import fi.racetrace.adminpanel.data.CustomerContainer; public class EventDetails extends Panel implements View { public static final String NAME = "events"; private final CustomerContainer dataSource; private fi.racetrace.adminpanel.data.Event event = null; private final VerticalLayout layout = new VerticalLayout(); public EventDetails(CustomerContainer dataSource) { this.dataSource = dataSource; setContent(layout); } @Override public void enter(ViewChangeEvent event) { this.event = null; int eventId = Integer.parseInt(event.getParameters()); findEvent(eventId); layout.removeAllComponents(); if (this.event != null) { setTitle(); buildlayout(); } else { Notification.show("Event not found!", Notification.Type.WARNING_MESSAGE); } } protected void findEvent(int eventId) { for (Object iid : dataSource.getItemIds()) { for (fi.racetrace.adminpanel.data.Event customerEvent : dataSource.getItem(iid).getBean().getEvents()) { if (customerEvent.getId() == eventId) { this.event = customerEvent; return; } } } } private void buildlayout() { buildBreadcrumbs(); buildCustomerForm(); buildSessionList(); } private void buildSessionList() { layout.addComponent(new SessionTable(event)); } private void buildCustomerForm() { layout.addComponent(new EventForm(event)); } private void buildBreadcrumbs() { HorizontalLayout b = new HorizontalLayout(); layout.addComponent(b); b.addComponent(new Link("Customers", new ExternalResource("#!"))); b.addComponent(new Label(" >> ")); b.addComponent(new Link(event.getCustomer().getName(), new ExternalResource("#!" + CustomerDetails.NAME + "/" + event.getCustomer().getId()))); b.addComponent(new Label(" >> ")); b.addComponent(new Link(event.getName(), new ExternalResource("#!" + NAME + "/" + event.getId()))); } private void setTitle() { Page.getCurrent().setTitle(event.getName() + " - Events - RaceTrace"); } }