title: How do i acces a list that is not connected to my class
body: <p><a href="https://i.stack.imgur.com/h0xnL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/h0xnL.png" alt="enter image description here" /></a></p>
  <p>Above picture is a picture of my class diagram. However i have a problem. In my OrderForm class i would like to display the property shippingtime of all the parts in an order that arent in stock. However i cannot acces the warehouse in a convenient way. I cant just make an object since its stock would differ from the one acctually used by workshop, and i cant make the availableparts list static since that would mean every future warehouse would all have the same stock.</p>
  <p>Does anyone know a workaround for this?</p>