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| − | In object-oriented programming, a metaclass is a class whose instances are classes.
| + | #redirect [[MetaClass]] |
| − | Just as an ordinary class defines the behavior of certain objects, a metaclass defines the behavior of certain classes and their instances. Not all object-oriented programming languages support metaclasses.
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| − | Among those that do, the extent to which metaclasses can override any given aspect of class behavior varies.
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| − | Each language has its own metaobject protocol, a set of rules that govern how objects, classes, and metaclasses interact.
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| − | Often [[Namespaces]] are used as identifiers in Metaclasses, to distinguish different classes.
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| − | ==Derive new object==
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| − | To generate a new metaclass just right-click on the sourceclass (e.g., the Baseclass) and choose Derive new object
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| − | Will man ein neues Metadatum erstellen, muss man, ausgehend von der Baseclass, Rechts klicken und „Derive new object“ wählen.
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| − | Anschließend kann im unteren Fenster im Reiter Object der Name des Metadatums geändert werden.
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