In C++, I understand that it is possible to create a Singleton base class using templates. It is described in the book, Modern C++ Design, by Andrei Alexandrescu.
Can something like this be achieved in Java?
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In C++, I understand that it is possible to create a Singleton base class using templates. It is described in the book, Modern C++ Design, by Andrei Alexandrescu.
Can something like this be achieved in Java?
I have yet to see a satisfactory solution for this in Java. There are many examples using templates in C++ or generics in .NET, but Java’s generics implementation has some limitations with static members that make this difficult.
The best option I’ve seen is to use a static HashMap, and a factory class. This allows you to make a single factory that can serve multiple Singletons of any class.
For an implementation, see this post.