MessageResourceServiceImpl

@Service("messageResourceService")
public class MessageResourceServiceImpl implements MessageResourceService {

    Logger logger = Logger.getLogger(getClass());

    @Autowired(required = true)
    @Qualifier("upSessionFactory")
    private SessionFactory sessionFactory;

    @Override
    @Transactional(readOnly = true)
    public List<MessageResource> loadAllMessages() {
        if (logger.isDebugEnabled()) {
            logger.debug("Retrieving All Messages");
        }
        Criteria criteria = sessionFactory.getCurrentSession().createCriteria(MessageResource.class);
        return criteria.list();
    }

    @Override
    @Transactional(readOnly = true)
    public MessageResource getMessageByKey(String key) {
        if (logger.isDebugEnabled()) {
            logger.debug("Retrieving Message by key " + key);
        }
        Criteria criteria = sessionFactory.getCurrentSession().createCriteria(MessageResource.class);
        criteria.add(Restrictions.eq("key", key));
        try {
            return (MessageResource) criteria.uniqueResult();
        } catch (Exception e) {
            logger.debug("Cannot find message with provided key in database");
            return null;
        }
    }

    @Override
    @Transactional(readOnly = true)
    public MessageResource getMessageById(Long id) {
        if (logger.isDebugEnabled()) {
            logger.debug("Retrieving Message by id " + id);
        }
        Criteria criteria = sessionFactory.getCurrentSession().createCriteria(MessageResource.class);
        criteria.add(Restrictions.eq("id", id));
        try {
            return (MessageResource) criteria.uniqueResult();
        } catch (Exception e) {
            logger.debug("Cannot find message with provided id in database");
            return null;
        }
    }

    @Override
    @Transactional(readOnly = false)
    public void save(MessageResource message) {
        sessionFactory.getCurrentSession().saveOrUpdate(message);
        sessionFactory.getCurrentSession().flush();
    }

    @Override
    @Transactional(readOnly = false)
    public void delete(Long messageId) {
        MessageResource message = getMessageById(messageId);
        sessionFactory.getCurrentSession().delete(message);
        sessionFactory.getCurrentSession().flush();
    }
}