Smalltalk-80: the language and its implementation
Smalltalk-80: the language and its implementation
Object-oriented programming with flavors
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
Using prototypical objects to implement shared behavior in object-oriented systems
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
OOPSLA '87 Conference proceedings on Object-oriented programming systems, languages and applications
OOPSLA '87 Conference proceedings on Object-oriented programming systems, languages and applications
A law-based approach to object-oriented programming
OOPSLA '87 Conference proceedings on Object-oriented programming systems, languages and applications
Classes versus prototypes in object-oriented languages
ACM '86 Proceedings of 1986 ACM Fall joint computer conference
Controllable delegation: an exercise in law-governed systems
OOPSLA '89 Conference proceedings on Object-oriented programming systems, languages and applications
ADAMS: an object-oriented system for epidemiological data manipulation
SAC '93 Proceedings of the 1993 ACM/SIGAPP symposium on Applied computing: states of the art and practice
Delegation: dynamic specialization
TRI-Ada '94 Proceedings of the conference on TRI-Ada '94
PAD-BASED expert system in small computer
SAC '94 Proceedings of the 1994 ACM symposium on Applied computing
Sharing Properties in a Uniform Object Space
ECOOP '95 Proceedings of the 9th European Conference on Object-Oriented Programming
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Arguments have been given recently for providing the functionality of prototypes in object-oriented languages. Prototypes allow more flexible sharing of code and data by delegating messages to parent objects without the rigid structure of a class hierarchy. Prototypes can implement classes, and delegation can be used to model both single and multiple inheritance. However, one drawback with delegation is the difficulty in enforcing the semantics that delegation is used to model. This paper proposes a novel mechanism to control the delegation of messages with rules. In this system, the delegation of messages is governed by a set of rules possessed by each object. Rules can be used to implement classical single inheritance and can implement various solutions to multiple inheritance. In addition, rules can be created dynamically to model application-specific semantics. This paper describes how rule-based delegation works and illustrates various rules for rule-based delegation that have been implemented.