Datenterrorist
"Dem sind keine Grenzen gesetzt, der sie nicht hinnimmt." - Japanische Weisheit _

.:: Inside-Out objects ::.

Meist werden Perl Objekte als blessed Hash Referenzen implementiert, diese Methode hat allerdings den Nachteil, dass Nutzer des Moduls in dessen Innereien rumfummeln können, Kapselung ist nicht mehr als Vertrauenssache.
Schluss damit!
Mit Inside-Out Objekten bekommt der Nutzer nur noch eine Referenz auf einen anonymen Skalar. Die Attribute werden in Hashes innerhalb der Klasse gehalten und die Speicheradresse des Objekts dient als Key. So gibt's keine Möglichkeiten auf Interna zu zu greifen, weil es sie schlicht nicht gibt.
Das Modul Class::Std::Utils hilft hierbei z.B. mit anon_scalar() und ident().

posted at 11:50:14 on 10/01/06 by balle - Category: Perl

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