The best way to guarantee that your Data Access Objects (DAOs) or repositories provide exception translation is to use the @Repository annotation. This annotation also allows the component scanning support to find and configure your DAOs and repositories without having to provide XML configuration entries for them.

@Repository
public class SomeMovieFinder implements MovieFinder {

    // ...

}

Any DAO or repository need to access to a persistence resource, depending on the persistence technology used. The easiest way to accomplish this is to have this resource dependency injected using one of the @Autowired, @Resource or @PersistenceContext annotations. Here is an example for a JPA repository:

@Repository
public class JpaMovieFinder implements MovieFinder {

    @PersistenceContext
    private EntityManager entityManager;
    
    // ...

}

If you are using the classic Hibernate APIs than you can inject the SessionFactory:

@Repository
public class HibernateMovieFinder implements MovieFinder {

    private SessionFactory sessionFactory;
    
    @Autowired
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }
    
    // ...

}

Last example we will show here is for typical JDBC support. You would have the DataSource injected into an initialization method where you would create a JdbcTemplate and other data access support classes like SimpleJdbcCall etc using this DataSource.

@Repository
public class JdbcMovieFinder implements MovieFinder {

    private JdbcTemplate jdbcTemplate;
    
    @Autowired
    public void init(DataSource dataSource) {
        this.jdbcTemplate = new JdbcTemplate(dataSource);
    }
    
    // ...

}

	Note
	Please see the specific coverage of each persistence technology for details on how to configure the application context to take advantage of these annotations.