How to use Spring Autowired (or manually wired) in Scala object?

I am trying to use Spring with Scala. I know Autowired works with Scala class, but I am using a web-framework that requires an object and I want to inject a dao into it. I wonder how to do this? Sorry, I am quite new to Scala, thanks in advance.

    @Service
    object UserRest extends RestHelper {
        @Autowired
        @BeanProperty
        val userRepository: UserRepository = null;

        .....
    }

    <beans>
         .....
         <bean id="userRest" class="com.abc.rest.UserRest" >
              <!--- this is my attempt to manually wire it --->
              <property name="userRepository" ref="userRepository"/>
         </bean>
    </beans>