I am writing multithreading program in serviceImpl using Callable interface.I am using spring transaction manager.When update operation is executed in DB ,it is executed successfully .But the updated data is not reflected in DB.**But When i run program without multithreading it is updated in DB**.

This is my configuration 

```
<tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="*" />
            <tx:method name="find*" propagation="NOT_SUPPORTED" />
            <tx:method name="get*" propagation="NOT_SUPPORTED" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="serviceOperation" expression="execution(* *..*ServiceImpl.*(..))" />
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceOperation" />
    </aop:config>
    <bean id="txManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

```

I can shift to another approach for transaction manager.Just i want to get confirm if this approach supports or not for multithreading.
So my question is 
**Do spring transaction manager supports multithreading(I mean just by declaring annotation Or XML ) 
Why updated data is not reflected in DB in my case?**
**What can be the best alternative approach ?**