The Hibernate SessionFactory is used to create a HibernateTemplate as it's set. The template is then used for any Hibernate database operations.
Spring's HibernateTemplate converts all exceptions to runtime exceptions so it isn't necessary to handle any exceptions.
@Repository
public class PersonDaoImpl implements PersonDao {
protected HibernateTemplate template = null;
/**
* Sets Hibernate session factory and creates a
* <code>HibernateTemplate</code> from it.
*/
public void setSessionFactory(SessionFactory sessionFactory) {
template = new HibernateTemplate(sessionFactory);
}
/**
* Find all persons.
*/
@SuppressWarnings("unchecked")
public Collection<Person> findPersons() throws DataAccessException {
return (Collection<Person>) template.find("from Person");
}
/**
* Find persons by last name.
*/
@SuppressWarnings("unchecked")
public Collection<Person> findPersonsByLastName(String lastName) throws DataAccessException {
return (Collection<Person>) template.find("from Person p where p.lastName = ?", lastName);
}
/**
* Saves person.
*/
public void save(Person person) {
template.saveOrUpdate(person);
}
}