Trouble with Spring 2.0 @Transactional and Hiberante

[kwame Iwegbue]

I'm new to Spring, but i've read a lot of documentation, but still can't figure this one out. need help from anyone with experience with @Transactional using <tx:annotation-driven>

I have this:

  ...
    <bean id="transactionManager" 
          class="org.springframework.orm.hibernate3.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>
 
    <tx:annotation-driven/>
 
...  

"sessionFactory" is correctly defined.
Then my service class (Which uses Hibernate 3.1) has this:

  ...
 
    @Transactional(propagation=Propagation.REQUIRES_NEW, readOnly=true)
    public User getUserByUsername(String username) {
    return ((User) getSession()
    .[B]createQuery[/B]("from User u where u.username like :un")
            .setString("un", username)
            .setMaxResults(1)
            .uniqueResult());
    }
 
...  

then this is from the stack trace:

  ...
 
09:51:11,491 ERROR AutoHandler:30 - createQuery is not valid without active transaction
org.hibernate.HibernateException: [B]createQuery is not valid without active transaction[/B]
at org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:297)
at $Proxy39.createQuery(Unknown Source)
at net.ehosp.model.daoImpl.UserDAOHibernate.getUserByUsername(UserDAOHibernate.java:61)
at net.ehosp.controller.LoginActionBean.login(LoginActionBean.java:136)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  

Any ideas? is this a problem with hibernate?