Question

On initialisation of the web app, I am trying to inject some static data from the DB into the bean.

<bean id="CustomDriven" class="java.util.ArrayList">
        <constructor-arg>
            <value>#{FormCodeHibernateDAO.findAll()}</value>
        </constructor-arg>
    </bean>

I get an error

6:48:07,977 INFO [main] [UpdateTimestampsCache] starting update timestamps cache at region: org.hibernate.cache.UpdateTimestampsCache
16:48:07,981 INFO [main] [StandardQueryCache] starting query cache at region: org.hibernate.cache.StandardQueryCache
16:48:09,016 DEBUG [main] [GenericDaoJpa] findAll()
16:48:09,017 DEBUG [main] [GenericDaoJpa] getting HIBERNATE session…
16:48:09,196 ERROR [main] [GenericDaoJpa] Error when finding all
org.hibernate.SessionException: Session is closed!
at org.hibernate.impl.AbstractSessionImpl.errorIfClosed(AbstractSessionImpl.java:72)
at org.hibernate.impl.SessionImpl.setFlushMode(SessionImpl.java:1433)

Any reason why I am getting this?

Answer 1

I figured the problem, my CustomDriven bean was talking to the DAO Impl directly.

I changed it to talk to the DAO using a service and the new configuration looks like

<bean id="CustomDriven" class="java.util.ArrayList">
        <constructor-arg>
            <value>#{dataDrivenService.getDataList()}</value>
        </constructor-arg>
    </bean>

And the DataDriverService class is

public interface DataDrivenService<T> {

    public List<T> getDataList();
 }

And the ServiceImpl is

@Service( value = "dataDrivenService" )
public class DataDrivenServiceImpl implements DataDrivenService {

    @Autowired
    @Qualifier( value = "formCodeDAO" )
    private FormCodeDAO dao;

    @Override
    @Transactional( readOnly = true )
    public List<FormCode> getDataList() {
        return dao.findAll();
    }
}

Where FormCodeDAO in interface that extends the GenericDAO implementation