Spring REST partial update with @PATCH method

Question

I\'m trying to implement a partial update of the Manager entity based in the following:

Entity

public class Manager {
    private int id;
    private Str         


        

Answer 1

You can write custom update query which updates only particular fields:

@Override
public void saveManager(Manager manager) {  
    Query query = sessionFactory.getCurrentSession().createQuery("update Manager set username = :username, password = :password where id = :id");
    query.setParameter("username", manager.getUsername());
    query.setParameter("password", manager.getPassword());
    query.setParameter("id", manager.getId());
    query.executeUpdate();
}