=head2 new( $class, $dsn )

$dsn = die XML-Datei, die geladen werden soll.

=cut

sub new {
    my $class   = shift;
    my $dsn     = shift or croak("missing dsn");
    
    my $self    = {};
    bless ($self, $class);
    $self->dsn($dsn);

    return $self;
} # /new