Prototype Ruby

example.rb

class ORMConnection
  attr_accessor :orm_driver

  def connect
    # do some stuff...
    @orm_driver = some_driver
  end
end

my_connection = ORMConnection.new.connect

class ORMObject < my_connection.singleton_class
  def initialize(name)
    @record_name = name
  end

  def get_records
    # do some stuff...
    @@orm_driver.fetch(@record_name, fetch_spec)
  end
end

my_foo = ORMObject.new('foo')
my_bar = ORMObject.new('bar')

my_foo.get_records #=> collection of foos