public void add(Maintenance maintenance) {
try {
session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
session.save(maintenance);
session.getTransaction().commit();
} catch (Exception e) {
System.err.println("Can`t add object to database\n " + e);
} finally {
if (session != null) session.close();
}
}
public List<Maintenance> getAll() {
List<Maintenance> result = null;
try {
session = HibernateUtil.getSessionFactory().openSession();
Criteria criteria = session.createCriteria(Maintenance.class);
result = (List<Maintenance>) criteria.list();
session.getTransaction().commit();
} catch (Exception e) {
System.err.println("Error in getting information from \"Capital\"\n" + e);
} finally {
if (session != null) session.close();
}
return result;
}
public void delete(int id) {
try {
session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
Maintenance capital = (Maintenance) session.get(Maintenance.class, id);
if (capital == null) {
throw new NullPointerException();
}
session.delete(capital);
session.getTransaction().commit();
} catch (NullPointerException e) {
System.err.println("There are not any item with this id\n" + e);
} catch (Exception e) {
System.err.println("Can`t delete this item\n" + e);
} finally {
if (session != null) session.close();
}
}
public void update(Maintenance maintenance, int id) {
try {
session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
Maintenance updateItem = (Maintenance) session.get(Maintenance.class, id);
if (updateItem == null) throw new NullPointerException();
updateItem.setDate(maintenance.getDate());
updateItem.setNumberEquipment(maintenance.getNumberEquipment());
updateItem.setKindMaintenance(maintenance.getKindMaintenance());
session.update(updateItem);
session.getTransaction().commit();
} catch (NullPointerException e) {
System.err.println("Can`t find item with this id\n" + e);
} catch (Exception e) {
System.err.println("Can`t update this item\n" + e);
} finally {
if (session != null) session.close();
}
}
public Maintenance get(int id) {
Maintenance findItem = new Maintenance();
try {
session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
findItem = (Maintenance) session.get(Maintenance.class, id);
if (findItem == null) {
throw new NullPointerException();
}
session.getTransaction().commit();
} catch (NullPointerException e) {
System.err.println("There are not any item with this id");
findItem = new Maintenance();
} catch (Exception e) {
System.err.println("Can`t find this item " + e);
} finally {
if (session != null) session.close();
}
return findItem;
}