Question

I have a Spring/JPA/Groovy/Hibernate stack, (note: not grails), and I’m finding that I’m getting a No session found for current thread when trying to perform some @Transactional work on startup.

I have a controller class that, upon @PostConstruct, invokes a @Transactional method on another class which tries to populate the database with some sample data to be used in a simulation.

Here’s the controller class:

@Component
public class SimulationController {

    private TransactionTemplate transactionTemplate;
    @Autowired
    private PlatformTransactionManager transactionManager;
    @Autowired
    private IPublisher publisher;

    @PostConstruct
    public void intialize()
    {
        this.transactionTemplate = new TransactionTemplate(transactionManager);
        transactionTemplate.execute(new TransactionCallbackWithoutResult() {
            @Override
            protected void doInTransactionWithoutResult(TransactionStatus arg0) {
                racePublisher.populateData();
            }
        });
    }
    //  Also tried, with no success:    
    //  @PostConstruct
    //  public void initialize()
    //  {
    //      publisher.populateData();
    //  }
}

As you can see, I’ve moved away from a pure @Transactional approach in the @PostConstruct for reasons discussed here.

My IPublisher is a groovy class, as follows:

@Component
class Publisher implements IPublisher {

@Autowired
IStockDAO stockDAO

void populateData()
{
    createStock()
}
@Transactional
void createStock()
{
    def list = [new Stock(ticker: "ADBE", name: "Adobe"),
                new Stock(ticker: "MSFT", venueCode: "Microsoft")]
    list.each { stockDAO.create it }
}

Which is an implementation of:

public interface IPublisher {

    public void populateData();
    public void createStock();
}

Note, I’ve also tried marking populateData() as @Transactional, with no effect.

In my Spring context class, I’m defining <tx:annotation-driven/>.

As far as I can tell, I’ve done everything correctly. However, I can’t seem to get this to work.

What else is required?

Updated:
Here are the beans setting up my dataAccess related beans:

<beans>
<bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <tx:annotation-driven/>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://${database.host}:${database.port}/${database.name}" />
        <property name="username" value="${database.username}" />
        <property name="password" value="${database.password}" />
        <property name="initialSize" value="5" />
        <property name="maxActive" value="50" />
    </bean>
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan">
            <list>
                <value>com.mangofactory.concorde</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.cache.provider_class">org.hibernate.cache.HashtableCacheProvider
                </prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop><!--  use create for full drop/create -->
                <prop key="hibernate.connection.autocommit">true</prop>
                <prop key="hibernate.statement_cache.size">0</prop>
                <prop key="hibernate.jdbc.batch_size">20</prop>
            </props>
        </property>
    </bean>
    <beans>

Answer 1

You should use HibernateTransactionManager instead of DataSourceTransactionManager.