How to use

update

method

in

mayoapp.dao.UserDAO

 public class CustomerDAO
{
  UserDAO userDao;

  // ... initialization ...

  public void update(Customer customer)
  {
    // ... first execute update of customer table ...

    userDao.update(customer);   // Should be able to pass Customer to UserDAO due to inheritance
  }

  public void insert(Customer customer)
  {
    // First insert a row in the User table so that the ID of the user can be determined.
    userDao.insert(customer);

    // ... Now execute insertion of row into Customer table ...
  }

  public void delete(Customer customer)
  {
    // ... first delete Customer row ...

    // Now delete base class User row.
    userDao.delete(customer);
  }
}

public void update(User user) throws EntityDoesNotExistException, InvalidEntityException
{
  if (this.findById(user.getId()) == null) {
    throw new EntityDoesNotExistException();
  }
  this.dao.update(user);
}