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Object Hierarchies, Inheritance, and Modules

The SICStus Objects system implements a default inheritance mechanism. By declaring within an object which objects are super-objects, the hierarchy of objects are maintained. The system also maintains for each object its immediate sub-objects (i.e. immediate children). Each object may also call Prolog predicates. At the top of the hierarchy, the proto-object object provides various services for other objects. If object is not used at the top of the hierarchy many services will not be available for other objects (check what methods are available in object by sending the message method/1 to object).

• Inheritance:
• Differential Inheritance:
• Use of Modules:
• Super and Sub:
• The Keyword Super:
• Semantic Links to Other Objects:
• Dynamically Declared Objects:
• Dynamic Methods:
• Inheritance of Dynamic Behavior: