Difference between revisions of "MetaClasses"
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To generate a new metaclass just right-click on the sourceclass (e.g., the Baseclass) and choose Derive new object. | To generate a new metaclass just right-click on the sourceclass (e.g., the Baseclass) and choose Derive new object. | ||
| − | After this the class´s name can be changed in the bottom window ( [[ | + | After this the class´s name can be changed in the bottom window ( [[Details]] ) |
Revision as of 13:10, 13 January 2012
In object-oriented programming, a metaclass is a class whose instances are classes. 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. Among those that do, the extent to which metaclasses can override any given aspect of class behavior varies. Each language has its own metaobject protocol, a set of rules that govern how objects, classes, and metaclasses interact.
Often Namespaces are used as identifiers in Metaclasses, to distinguish different classes.
Derive new object
To generate a new metaclass just right-click on the sourceclass (e.g., the Baseclass) and choose Derive new object.
After this the class´s name can be changed in the bottom window ( Details )
