Finding users whose birtday is today with JPA
- by Jeduan Cornejo
Hi, I have a table with users and are trying to get a list with the people who have birthday today so the app can send an email.
The User is defined as 
@Entity
public class User {
    @Size(max = 30)
    @NotNull
    private String name;
    [...]
    @Temporal(TemporalType.DATE)
    @DateTimeFormat(style = "S-")
    protected Date birthday;
}
and I've got a method which returns the people which were born today like so
@SuppressWarnings("unchecked")
public static List<User> findUsersWithBirthday() {
 List<User> users = 
  entityManager().createQuery("select u from User u where u.birthday = :date")
    .setParameter("date", new Date(), TemporalType.DATE)
    .getResultList();
  return users;
}
This is fine and all for finding people which were born today, however tha's not really that useful, so I've been struggling for a way to find all the users that were born today, independent of the year.
Using MySQL there's functions I can use like 
select month(curdate()) as month, dayofmonth(curdate()) as day
However I've been struggling to find a JPA equivalent to that.
I'm using Spring 3.0.1 and Hibernate 3.3.2