public void process(Data row) {

    Value value1 = row.getValue1();
    Value value2 = row.getValue2();
    boolean saved = false;

    if (value1 != null) {
        if (relevantValues.contains(value1)) {
            addRow(value1, row, only1collection);
            repository.save(row);
            stats.increment();
            saved = true;
        }
    }

    if (value1 != null) {
        if (relevantValues.contains(value1)) {
            if (relevantValues.contains(value2)) {
                addRow(value2, row, values12collection);
            }
        }
    }


    if (relevantValues.contains(value2)) {
        addRow(value2, row, only2collection);
        if (!saved) {
            repository.save(row);
            stats.increment();
        }
    }
}