There are many ways to achieve this in spring, the most obvious way given the factory class that you have is to use JavaConfig . If you used the spring enabled JavaConfig annotations you could do the following to construct your beans and add them to the application context.
One way is create a factory class and store the instances of the beans (each implementing a common interface MyBean) as values under some key in a map (beans).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.