public NodePointer getNodePointer() {
        if (position == 0) {
            setPosition(1);
        }
        return (attribute == null) ? null : new Xpp3DomAttributePointer(parent, attribute);
    }

    @Override
    public int getPosition() {
        return position;
    }

    @Override
    public boolean setPosition(int position) {
        this.position = position;

    @Override
    public NodePointer getNodePointer() {
        if (position == 0) {
            setPosition(1);
        }
        return (child == null) ? null : new Xpp3DomNodePointer(parent, child);
    }

    @Override
    public int getPosition() {
        return position;
    }

    @Override
    public boolean setPosition(int position) {
        this.position = position;
        filterChildren(position);