Advanced Java-like enums in Ruby

Question

First of all, this is not a duplicate of Enums in Ruby :)

The accepted answer of that question suggests this as a good way to represent enums in Ruby:

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Answer 1

You can always create a system that's like the Java version:

module Foo
  class Value
    attr_reader :value

    def initialize(value)
      # Save a frozen, immutable copy
      @value = value.dup.freeze
    end

    # Patch in methods to make it appear more friendly and string-like
    alias_method :to_s, :value
    alias_method :inspect, :value
  end

  # Define constants
  BAR = Value.new('bar')
  BAZ = Value.new('baz')
  BIZ = Value.new('biz')
end

puts Foo::BAR
# => bar