The design and implementation of O 2, an object-oriented database system

Bancilhon, François; Barbedette, Gilles; Benzaken, Véronique; Delobel, Claude; Gamerman, Sophie; Lécluse, Christophe; Pfeffer, Patrick; Richard, Philippe; Vélez, Fernando

doi:10.1007/3-540-50345-5_1

Cited by 69 publications

(15 citation statements)

References 7 publications

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“…There are basically three alternatives for storing XML data: in semi-structured databases [15], in object-oriented databases [13], and in relational systems [21-19, 17, 14, 22, 16, and 23]. Among these approaches, the relational storage approach has attracted considerable interest with a view to leveraging their powerful and reliable data management services.…”

Section: Related Workmentioning

confidence: 99%

XRecursive: AStorage Method for XML Document Based on Relational Database

Fakharaldien

Zain

Sulaiman

2011

Software Engineering and Computer Systems

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Abstract. Storing XML documents in a relational database is a promising solution because relational databases are mature and scale very well and they have the advantages that in a relational database XML data and structured data can coexist making it possible to build application that involve both kinds of data with little extra effort. In this paper, we propose an algorithm schema named XRecursive that translates XML documents to relational database according to the proposed storing structure. The steps and algorithm are given in details to describe how to use the storing structure to storage and query XML documents in relational database. Then we report our experimental results on a real database to show the performance of our method in some features.

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Section: Related Workmentioning

confidence: 99%

XRecursive: AStorage Method for XML Document Based on Relational Database

Fakharaldien

Zain

Sulaiman

2011

Software Engineering and Computer Systems

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“…In this section, we present the model of an object-oriented database [8,7,26,30] and present the correctness criterion used in such databases. Next, we present a concurrency control protocol to synchronize the execution of concurrent transactions in object-oriented databases.…”

Section: Atomic Transactions In Object-oriented Databasesmentioning

confidence: 99%

A nonrestrictive concurrency control protocol for object-oriented databases

Agrawal

Abbadi

1994

Distrib Parallel Databases

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Abstract. We propose an algorithm for executing transactions in object-oriented databases. The object-oriented database model generalizes the classical model of database concurrency control by permitting accesses to class and instance objects, by permitting arbitrary operations on objects as opposed to traditional read and write operations, and by allowing nested execution of transactions on objects. In this paper, we first develop a uniform methodology for treating both classes and instances. We then develop a two-phase locking protocol with a new relationship between locks called ordered sharing for an object-oriented database. Ordered sharing does not restrict the execution of conflicting operations. Finally, we extend the protocol to handle objects that execute methods on other objects thus resulting in the nested execution of transactions. The resulting protocol permits more concurrency than other known locking-based protocols.

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“…Others include Object-Oriented Database Systems such as GemStone (Bretl, Otis et al, 1989) and O 2 (Bancilhon, Barbedette et al, 1988), which have at their core a persistent object store, and process modelling systems, which use a persistent base to preserve their modelling activities over execution sessions (Bruynooghe, Parker et al, 1991;Curtis, Kellner et al, 1992;Han and Welsh, 1993). Some persistent programming systems allow software engineering environments to be completely supported within the persistent system (Currie, 1985;Bretl, Otis et al, 1989;Morrison, Brown et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Exploiting Persistent Linkage in Software Engineering Environments

Morrison

Connor

Cutts

et al. 1995

The Computer Journal

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Abstract. Persistent programming systems are designed to provide technology for the construction and maintenance of large, long-lived object-based application systems. Many successful prototypes have been constructed and a large body of application building experience is emerging. Three common attributes of persistent systems are persistent linkage, strong typing and the referential integrity of data. Persistent linkage allows persistent objects to be included in the binding process. Strong typing guarantees that objects are only manipulated in a manner consistent with their type system descriptions. Referential integrity ensures that once a link (reference) to an object is established, its identity is unique and it persists over time. As a consequence no object can be deleted while another refers to it. Here we examine some of the advantages of providing software engineering environments within a persistent object system with strong typing and referential integrity. It is shown how the integration of system specifications, programs, configuration management tools and documentation all within a single persistent environment leads to powerful new techniques. This new power is achieved by sharing structured persistent data across the hitherto enclosing boundaries of system components.

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The design and implementation of O 2, an object-oriented database system

Cited by 69 publications

References 7 publications

XRecursive: AStorage Method for XML Document Based on Relational Database

XRecursive: AStorage Method for XML Document Based on Relational Database

A nonrestrictive concurrency control protocol for object-oriented databases

Exploiting Persistent Linkage in Software Engineering Environments

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