Hibernate Session.delete() an object if exists

Question

In JavaDoc of Session class the description of delete method is:

Remove a persistent instance from the datastore. The argument may be

Answer 1

You can easily achieve by following simple hibernate as follows,

Session session=getSession();  
String hql = "delete from Student where classId= :id"; 
session.createQuery(hql).setString("id", new Integer(id)).executeUpdate();