Event Specification in an Active Object-Oriented Database.

@inproceedings{DBLP:conf/sigmod/GehaniJS92,
  author    = {Narain H. Gehani and
               H. V. Jagadish and
               Oded Shmueli},
  editor    = {Michael Stonebraker},
  title     = {Event Specification in an Active Object-Oriented Database},
  booktitle = {Proceedings of the 1992 ACM SIGMOD International Conference on
               Management of Data, San Diego, California, June 2-5, 1992},
  publisher = {ACM Press},
  year      = {1992},
  pages     = {81-90},
  ee        = {http://doi.acm.org/10.1145/130283.130300, db/conf/sigmod/GehaniJS92.html},
  crossref  = {DBLP:conf/sigmod/92},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

The concept of a trigger is central to any active database. Upon the occurrence of a trigger event the trigger is "fired", i.e, the trigger action is executed. We describe a model and a language for specifying basic and composite trigger events in the context of an object-oriented database. The specified events can be detected efficiently using finite automata.

We integrate our model with O++, the database programming language for the Ode object database being developed at AT&T Bell Labs. We propose a new Event-Action model, which folds into the event specification the condition part of the well-known Event-Condition-Action model and avoids the multiple coupling modes between the event, condition, and action trigger components.

Copyright © 1992 by the ACM, Inc., used by permission. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation.

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