Singleton with eager initialization
- by jesper
I have class X that takes much time to initialize itself. I want to make that class singleton and force its creation when rails application starts.
I've made the singleton:
class X
@@instance = nil
def self.instance
if @@instance.nil?
@@instance = X.new
puts 'CREATING'
end
return @@instance
end
private_class_method :new
end
The problem is that every time I use this class I see 'CREATING' in logs. I've tried to put creation of class in initializers directory but it doesn't work either.
