enum_class

https://github.com/LIQIDTechnology/enum_class

Provides a lightweight solution for object-oriented enumerations in Ruby in a similar ways as other languages, like Java, do. It consists of a single class (Enum), that can be subclassed to create enumerated types. Each class has a set of predefined instances, that represent the enumerated values. Fatures like support for inheritance and declaring instance methods on enumerated values are supported as well.