Пример #1
0
public class DatabaseServiceImpl implements DatabaseService {

  EntityManager em =
      JPAContainerFactory.createEntityManagerForPersistenceUnit(
          TwentyFourConstants.PERSISTENCE_UNIT);

  @Override
  public void init() {
    if (isInitiated()) {
      System.out.println("The database is already initiated.");
      return;
    }

    System.out.println("Initiating database for the first time.");

    addUsers();
    markAsInitiated();
  }

  private boolean isInitiated() {
    boolean initiated = false;

    CriteriaQuery<Properties> query = em.getCriteriaBuilder().createQuery(Properties.class);
    List<Properties> propertiesList =
        em.createQuery(query.select(query.from(Properties.class))).getResultList();

    for (Properties properties : propertiesList) {
      if (properties.getDb().toString().equals("basic")
          && properties.getState().toString().equals("Initiated")) {

        initiated = true;
      }
    }

    return initiated;
  }

  private void addUsers() {
    UserServiceImpl service = new UserServiceImpl();

    service.addUser("chgri", "Chris", "Grivas", Role.ADMIN);
  }

  private void markAsInitiated() {
    Properties twentyFourDatabaseState = new Properties();
    twentyFourDatabaseState.setDb("basic");
    twentyFourDatabaseState.setState("Initiated");

    EntityTransaction tx = em.getTransaction();
    tx.begin();
    em.persist(twentyFourDatabaseState);
    tx.commit();
  }
}
Пример #2
0
@Theme("mytheme")
@Widgetset("vist.stat.vaadinjpacontainertest.MyAppWidgetset")
public class MyUI extends UI {

  private final JPAContainer<Reference> jpaPost =
      JPAContainerFactory.make(Reference.class, "vist.stat_VaadinJPAContainerTest_war_1.0PU");
  private final EntityManager em = jpaPost.getEntityProvider().getEntityManager();

  @Override
  protected void init(VaadinRequest vaadinRequest) {
    final VerticalLayout layout = new VerticalLayout();
    layout.setMargin(true);
    setContent(layout);

    Button button = new Button("Click Me");
    //        button.addClickListener(new Button.ClickListener() {
    //            @Override
    //            public void buttonClick(ClickEvent event) {
    //                Query qwr = em.createNamedQuery("Reference.findActual");
    //                qwr.setParameter("status", RecStatus.ACTIVE);
    //                List<Reference> resultList = qwr.getResultList();
    //                for (Reference post : resultList)
    //                    layout.addComponent(new Label(post.getName()));
    //            }
    //        });
    layout.addComponent(showGrid());
    layout.addComponent(button);
  }

  @WebServlet(urlPatterns = "/*", name = "MyUIServlet", asyncSupported = true)
  @VaadinServletConfiguration(ui = MyUI.class, productionMode = false)
  public static class MyUIServlet extends VaadinServlet {}

  private Grid showGrid() {
    Grid grid = new Grid("Справочник", jpaPost);
    grid.setSizeFull();

    return grid;
  }
}
Пример #3
0
    @BeforeClass
	public static void init(){
		changements = JPAContainerFactory.makeJndi(Changement.class);
	}