How to guarantee Java instance control (without enum) in world of serialization?

Question

In a world before Java 1.5 (so no enum) and with my object being serialized, how can I enforce proper instance control? I\'m talking about a class like this, w

Answer 1

You should really check out Effective Java. The chapter on Singleton addresses this somewhat, and there is a chapter on the Typesafe Enum pattern that was definitely an influence on the way enum was implemented.

The short answer is you have to implement readResolve.