How to provide current BeanFactory as constructor argument

I have a singleton class which I would like to be created using Spring's IoC. This class needs to instantiate a dynamic number of other objects using IoC as well. Thus, this class needs the BeanFactory passed in as a constructor argument. How can I do this?

Here is the general structure I was planning. I am fairly new to Spring IoC, so I am also open to changing this structure if it does not fit well in Spring.

public class Main
{
    public static void main(String[] args)
    {
        ApplicationContext context =
                new ClassPathXmlApplicationContext(new String[]{"applicationContext.xml"});

        MySingletonInterface instance = context.getBean(MySingletonInterface.class);

        instance.foo();
    }
}

public class MySingletonClass implements MySingletonInterface
{
    public MySingletonClass(BeanFactory beanFactory开发者_运维百科)
    {
        this.beanFactory = beanFactory;
    }

    public void foo()
    {
        for( ..... )
        {
            NeedManyInstances instance = beanFactory.getBean(NeedManyInstances.class);
            ....
        }
    }
}

---

The easiest way is to declare constructor as @Autowired (make sure that application context is configured for use of annotation-based configuration with <context:annotation-config/>):

@Autowired
public MySingletonClass(BeanFactory beanFactory) { ... }

Another option is to make your class implement BeanFactoryAware and use setBeanFactory() method instead of constructor.