Is there a way to set up such enum values via Spring IoC at construction time?
What I would like to do is to inject, at class load time, values that are hard-coded i
Do you mean setting up the enum itself?
I don't think that's possible. You cannot instantiate enums because they have a static nature. So I think that Spring IoC can't create enums as well.
On the other hand, if you need to set initialize something with a enum please check out the Spring IoC chapter. (search for enum) There's a simple example that you can use.