Sample RGen model

carmodel2.rb

require 'puppet'
require 'puppet/pops'
require 'rgen/metamodel_builder'

module MyModel
  # Let RGen now this module is a model
  extend RGen::MetamodelBuilder::ModuleExtension

  # An abstract class that makes it easier to check if a given
  # object is an element of "MyModel"
  #
  class MyModelElement < RGen::MetamodelBuilder::MMBase
    # We make this class abstract to make it impossible to create instances of it
    include Puppet::Pops::Containment
    abstract
  end

  class Engine < MyModelElement
    abstract
  end

  FuelTypeEnum = RGen::MetamodelBuilder::DataTypes::Enum.new([:diesel, :petrol, :etanol])

  class CombustionEngine < Engine
    has_attr 'fuel', FuelTypeEnum
  end

  class ElectricalEngine < Engine
    has_attr 'charge_time_h', Integer
  end

  RimTypeEnum = RGen::MetamodelBuilder::DataTypes::Enum.new([:black, :silver])

  class Wheel < MyModelElement
    has_attr 'rim', RimTypeEnum
    has_attr 'rim_serial', String
  end 

  ExtraEquipmentEnum = RGen::MetamodelBuilder::DataTypes::Enum.new([
    :gps, :stereo, :sun_roof, :metallic
  ])

  class Car < MyModelElement
    has_attr 'reg_nbr', String, :defaultValueLiteral => 'UNREGISTERED'
    has_many_attr 'extras', ExtraEquipmentEnum, :defaultValueLiteral => 'stereo'
    contains_one 'engine', Engine, 'in_car'
    contains_one_uni 'left_front', Wheel
    contains_one_uni 'right_front', Wheel
    contains_one_uni 'left_rear', Wheel
    contains_one_uni 'right_rear', Wheel
  end

  class ServiceOrder < MyModelElement
    has_one 'serviced_engine', Engine
  end

  class Garage < MyModelElement
    contains_many_uni 'cars', Car
  end
end