public List<FieldPart> getTokenizedContent() {
        List<FieldPart> l = new ArrayList<>();
        for (ListIterator<FieldPart> i = tokenIterator(); i.hasNext(); ) {
            l.add(i.next());
        }
        return l;
    }
Get a list representation of the tokens in the content. This is
only a copy, changes here will not affect the HitField.

@return a list containing the content in tokenized form.
container-search/src/main/java/com/yahoo/prelude/hitfield/HitField.java