A Framework for Rules Handling Errors during the Execution of Trigger for an Active Object-Oriented DBMS
Haojin Wang, J.-M. Yen, Jan Wolter · 1994
As itigger systems in aciivc object-orienicd daiabaac managcmcri rysicms (OODBMS) become ancnasingly wmplicaied, handling the emrs, such as failuns and aborts, that may occur during the ezccution of trigger rules becomes an imporiani issue. This paper pnsenis a fimework for handling ihis iype of emrs. It ettends the ezisiing emf handling mechanisms by modeling failuns, aboris and other emr situaiions as events in ihc Eveni-Condiiion-Action (ECA) pamdigm. Thw, ihe contingency plans or handling emr evcnis can be modeled as trigger ru f cs. Reuse of the DBMS funciionaliiies; uniform inaimeni of data objecis, trigger rules and contingency plans; and ihe jlctibiliir for users io declamiivel define a coniingency plan io suii a particular apptcation are among ihc main benefiia of ihis cmr handling framework.