The COCOON object model


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SCHOLL, Marc H., Christian LAASCH, Christian RICH, Hans-Jörg SCHEK, Markus TRESCH, 1992. The COCOON object model

@techreport{Scholl1992COCOO-6291, title={The COCOON object model}, year={1992}, author={Scholl, Marc H. and Laasch, Christian and Rich, Christian and Schek, Hans-Jörg and Tresch, Markus}, note={Prepr. of: Technical Report No. 192, Dept. of Computer Science, ETH Zürich, Dec. 1992} }

<rdf:RDF xmlns:dcterms="" xmlns:dc="" xmlns:rdf="" xmlns:bibo="" xmlns:dspace="" xmlns:foaf="" xmlns:void="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:creator>Scholl, Marc H.</dc:creator> <dcterms:isPartOf rdf:resource=""/> <dc:creator>Laasch, Christian</dc:creator> <dcterms:title>The COCOON object model</dcterms:title> <dc:format>application/pdf</dc:format> <bibo:uri rdf:resource=""/> <dc:language>eng</dc:language> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Schek, Hans-Jörg</dc:contributor> <dc:creator>Tresch, Markus</dc:creator> <dcterms:rights rdf:resource=""/> <dc:date rdf:datatype="">2011-03-24T16:11:11Z</dc:date> <dc:contributor>Rich, Christian</dc:contributor> <dc:creator>Schek, Hans-Jörg</dc:creator> <dcterms:available rdf:datatype="">2011-03-24T16:11:11Z</dcterms:available> <dspace:isPartOfCollection rdf:resource=""/> <dc:creator>Rich, Christian</dc:creator> <dcterms:abstract xml:lang="eng">The COCOON model was intended to extend the concepts of relational database management systems (DBMSs) beyond nested relational to object-oriented ones. Key characteristics of COCOON and its database language COOL are: generic, set-oriented query and update operators similar to relational algebra and SQL updates, respectively; object-preserving semantics of query operators, which allows for the definition of updatable views; update operations that keep model-inherent integrity constraints consistent; a separation of the two aspects of programming language "classes": type vs. collection; predicative description of collections, similar to "defined concepts" in KL-One-like knowledge representation languages; automatic classification of objects and views (positioning in the class hierarchy). This report gives a comprehensive introduction to the COCOON model and its language COOL as well as a formal de nition. Our formalization uses denotational semantics, a popular technique in programming languages. We found that standard set-theoretic formalizations of data and object models were not equally well-suited to express update semantics. This, however, is essential for object-oriented as opposed to value-based languages. This can also be taken as an indication for the convergence of database languages to generell programming languages. Along these same lines, we emphasized static-type checking of COOL.</dcterms:abstract> <dc:contributor>Tresch, Markus</dc:contributor> <dc:contributor>Scholl, Marc H.</dc:contributor> <dcterms:issued>1992</dcterms:issued> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:contributor>Laasch, Christian</dc:contributor> <dcterms:hasPart rdf:resource=""/> <dc:rights>terms-of-use</dc:rights> <dspace:hasBitstream rdf:resource=""/> </rdf:Description> </rdf:RDF>

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