field select with a Static List

Hy guys.

I have a simple problem here.
in my order class i have OrderStatus field, which is an enum in the database. (Can be "Under process" or Dispatched)

My problem is when im using update.jspx i want a field:select dropdown list, where the admin can change this value.

Because these values can not be read out from database, i was thinking of creating a static arraylist inside order.java like this:

Code:

---

public static List<String> StatusList;
    static{
      ArrayList<String> tmp = new ArrayList<String>();
      tmp.add("Under process");
      tmp.add("Dispatched");
      StatusList = Collections.unmodifiableList(tmp);
    }

---

Code:

---

public List<String> getStatusList() {
        return StatusList;
    }

---

how can i read out these value using field:select tag, and set them as orderStatus?

Code:

---

<field:select field="orderStatus" id="c_photostore_Porder_orderStatus" items="${porders}" itemValue="orderStatusList" path="/porders"/>

---

if i could call a method from update.jspx would be fine also, but i dont know the syntax only in webflow, not in standard roo.