Programming Reference: Abstract Superclasses

# Programming Reference

## Abstract Superclasses

This book and other OpenDoc manuals use the term abstract superclass to describe a class, such as ODPersistentObject, that must be subclassed rather than used directly. In some cases, a superclass is not abstract, but implements basic functionality that can be further extended through subclassing. In the case of ODTransform, for example, parts can create and use objects of the superclass and need not implement subclasses.

[ Top | Previous | Next | Contents | Index | Documentation Homepage ]