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@inproceedings{DBLP:conf/sigmod/AnwarMC93,
author = {Eman Anwar and
L. Maugis and
Sharma Chakravarthy},
editor = {Peter Buneman and
Sushil Jajodia},
title = {A New Perspective on Rule Support for Object-Oriented Databases},
booktitle = {Proceedings of the 1993 ACM SIGMOD International Conference on
Management of Data, Washington, D.C., May 26-28, 1993},
publisher = {ACM Press},
year = {1993},
pages = {99-108},
ee = {http://doi.acm.org/10.1145/170035.170059, db/conf/sigmod/AnwarMC93.html},
crossref = {DBLP:conf/sigmod/93},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
This paper proposes a new approach for supporting reactive capability in an object-oriented database. We introduce an event interface, which extends the conventional object semantics to include the role of an event generator. This interface provides a basis for the specification of events spanning sets of objects, possibly from different classes, and detection of primitive and complex events. This approach clearly separates event detection from rules. New rules can be added and use existing objects, enabling objects to react to their own changes as well as to the changes of other objects.
We use a runtime subscription mechanism, between rules and objects to selectively monitor particular objects dynamically. This elegantly supports class level as well as instance level rules. Both events and rules are treated as first class objects.
Copyright © 1993 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.
CDROM Version: Load the CDROM "Volume 1 Issue 1, SIGMOD '93-'97" and ...
,
SIGMOD Record 22(2),
June 1993