How do I use an enhanced for loop / for each on my ViewObjectImpl ?

Question

Guys and Gals,
With all of my newly acquired Java knowledge in tow, I spent this weekend cleaning up all of my code, dealing mainly with for loops. I converted them from a huge mess to a for each type loop using language such as ...
    RowSet priceUpdateRows = (RowSet)((PriceUpdatesViewRowImpl) priceUpdate).getPriceUpdateRowsView();
    for (Row priceUpdateRow: priceUpdateRows)
    { // do operations on row... which makes perfect sense to me. For each Row in the RowSet, do something. It doesn't, however, makes sense to the compiler. It pouts and gives me a "foreach not applicable to expression type" error. So I read up on iterators and such, messed with code examples, and still can't get the RowSet to iterate with the above code. Could I make RowSet implement Iterable? How would I do that? I tried to create a class called RowSetExt which extended RowSet and implemented Iterable, but then I got a class cast exception.
I know I could implement something like the following or a while(hasNext()) but they're really not what I'm looking for.
ViewObject vo = … < Get ViewObject > …
RowSetIterator rsi = vo.createRowSetIterator("rowsRSI");
while (rsi.hasNext())
     Row row = rsi.next();
     row.setAttribute("YourAttribute",your_value);
     rsi.closeRowSetIterator();How do I make the for(Row row : <RowSet>) example work? Or could someone point me in a direction?
Will

Answer 1

One thing I tried was to make a framework extension class for my ViewObjectImpls
public class PcsViewObjectImpl
  extends ViewObjectImpl
  implements Iterable<Row>
  Set<Row> set = new HashSet<Row>();
  public Iterator<Row> getRows()
    return set.iterator();
  public Iterator<Row> iterator()
    return getRows();
}AppModuleImpl
    PriceUpdateRowsViewRowImpl priceUpdateRows = (PriceUpdateRowsViewRowImpl)((PriceUpdatesViewRowImpl) priceUpdate).getPriceUpdateRowsView();
    for (Row priceUpdateRow: priceUpdateRows)
    {However, this gives me a class cast exception at runtime. But I would think some kind of extension class would be the way to go ... ?