Making Smalltalk a Database System.

George P. Copeland, David Maier: Making Smalltalk a Database System. SIGMOD Conference 1984: 316-325

@inproceedings{DBLP:conf/sigmod/CopelandM84,
  author    = {George P. Copeland and
               David Maier},
  editor    = {Beatrice Yormark},
  title     = {Making Smalltalk a Database System},
  booktitle = {SIGMOD'84, Proceedings of Annual Meeting, Boston, Massachusetts,
               June 18-21, 1984},
  publisher = {ACM Press},
  year      = {1984},
  pages     = {316-325},
  ee        = {http://doi.acm.org/10.1145/602259.602300, db/conf/sigmod/CopelandM84.html},
  crossref  = {DBLP:conf/sigmod/84},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

To overcome limitations in the modeling power of existing database systems and provide a better tool for database application programming, Servio Logic Corporation is developing a computer system to support a set-theoretic data model in an object-oriented programming environment. We recount the problems with existing models and database systems. We then show how features of Smalltalk, such such as operational semantics, its type hierarchy, entity identity and the merging of programming and data language, solve many of those problems. Next we consider what Smalltalk lacks as a database system secondary storage management, a declarative semantics, concurrency, past states. To address these shortcomings, we needed a formal data model. We introduce the Gemstone data model, and show how it helps to define path expressions, a declarative semantics and object history in the OPAL language. We summarize similar approaches, and give a brief overview of the Gemstone system implementation.

Copyright © 1984 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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References

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