address_extraction_spec.rb

describe "A way to extract address" do
  it "creates a value object upon read" do
    foo = Poi.new

    foo.name = "test"
    foo.company_name = "bar"
    foo.title = "zzzzz"

    foo.address.name.should == "test"
    foo.address.company.should == "bar"
    foo.address.title.should == "zzzzz"
  end
  
  it "can save the value object back" do
    poi = Poi.new

    poi.address = Poi::Address.new("test", "bar", "zzzzz")

    poi.name.should  == "test"
    poi.company_name.should == "bar"
    poi.title.should == "zzzzz"
  end
end

poi.rb

require 'values'

class Poi
  attr_accessor :name, :company_name, :title
  Address = Value.new(:name, :company, :title)


  def address
    Address.new(name, company_name, title)
  end

  def address=(address)
    self.name = address.name
    self.company_name = address.company
    self.title = address.title
  end
end