Michael Schrefl, Gertrude Kappel,
"Cooperation Contracts"
, in Toby J. Teorey: Proceedings of the 10th International Conference on the Entity-Relationship Approach (ER '91), Participants Proceedings, San Mateo, Calif., U.S.A., October 1991, Seite(n) 285-307, 10-1991
Original Titel:
Cooperation Contracts
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the 10th International Conference on the Entity-Relationship Approach (ER '91), Participants Proceedings, San Mateo, Calif., U.S.A., October 1991
Original Kurzfassung:
In this paper we introduce the concept of cooperative message handling, in which several objects act together in answering a message they have received jointly. cooperative message handling extends the traditional message passing paradigm which requires the receiver of a message to be a single object only. Cooperative messages are defined with cooperation contracts which are established between several object types. A cooperative message is sent to a tuple of instances, one for each object type in the cooperation contract. We show that cooperation contracts offer new benefits for behavior modeling in object-oriented database design. Behavior which is provided by several object types in concert needs not be dispersed and can be defined in a single place. Furthermore, behavior designs become symmetric, better maintainable and better extensible.
Sprache der Kurzfassung:
Englisch
Seitenreferenz:
285-307
Erscheinungsmonat:
10
Erscheinungsjahr:
1991
Anzahl der Seiten:
23
Notiz zur Publikation:
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