[Solved-1 Solution] How to turn (A, B, C) into (AB, AC, BC) with Pig ?

public class CombinationsUDF extends EvalFunc<DataBag> {
    public DataBag exec(Tuple input) throws IOException {
        List<Tuple> bagValues = new ArrayList<Tuple>();
        Iterator<Tuple> iter = ((DataBag)input.get(0)).iterator();
        while (iter.hasNext()) {
            bagValues.add(iter.next());
        }

        List<Tuple> outputTuples = new ArrayList<Tuple>();
        for (int i = 0; i < bagValues.size() - 1; i++) {
            List<Object> currentTupleValues = bagValues.get(i).getAll();

            for (int j = i + 1; j < bagValues.size(); j++) {
                List<Object> aux = new ArrayList<Object>(currentTupleValues);
                aux.addAll(bagValues.get(j).getAll());
                outputTuples.add(TupleFactory.getInstance().newTuple(aux));
            }
        }