sub getRef
{
    my $this = shift @_;

    for (my $i = 0; $i < @_; $i++)
    {
        unless (ref ($_[$i]))
        {
            $_[$i] = $this->getNodeById($_[$i]) if($_[$i]);
        }
    }

    ref $_[0];
}

##</code><code>##

sub getRef {
    my $self=shift;
    for (@_) {
       next if ref $_ or !$_;
       $_=$self->getNodeById($_);
    }
    ref shift;
}