Applying Aspect-Oriented Approach for Instance Adaptation for Object-Oriented Databases

Kuppuswami,; Palanivel,; Amouda,

doi:10.1109/adcom.2007.93

Cited by 4 publications

(7 citation statements)

References 6 publications

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“…The technical aspects can benefit from all the advantages in terms of flexibility and customization, as demonstrated in earlier works (Section 5). Regarding the domain aspects, we argue that they can be added to the system as modules (containing user‐defined settings for conversion).…”

Section: Orthogonal Persistence and Aspect Orientationmentioning

confidence: 95%

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Modularizing application and database evolution - an aspect-oriented framework for orthogonal persistence

Pereira

Perez-Schofield

Ortín

2016

Softw. Pract. Exper.

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Summary In the maintenance of software applications, database evolution is one common difficulty. In object‐oriented databases, this process comprises schema evolution and instance adaptation. Both tasks usually require significant effort from programmers and database administrators. In this paper, we propose orthogonal persistence and aspect‐oriented programming to support semi‐transparent database evolution. A default mechanism for instance evolution is defined, but the user may provide modularized solutions using the aspect‐oriented paradigm. We present our framework AOF4OOP to test the feasibility of our proposed approach. This prototype allows programmes to transparently access data in other versions of the database schema. We evaluate our framework, comparing it to related approaches using two real applications and measuring the improvement of the productivity of the programmer. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Orthogonal Persistence and Aspect Orientationmentioning

confidence: 95%

“…Kuppuswami et al , have also explored AOP techniques proposing a flexible instance adaptation approach, developing a system that supports instance adaptation with two aspects : update/backdate and selective lazy conversion aspects . These update/backdate aspects support the concern regarding the emulation of object versions.…”

Section: Related Workmentioning

confidence: 99%

Modularizing application and database evolution - an aspect-oriented framework for orthogonal persistence

Pereira

Perez-Schofield

Ortín

2016

Softw. Pract. Exper.

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“…This is termed instance adaptation. A new flexible instance adaptation approach introduced using update/backdate aspects with selective lazy conversion [28]. This makes it possible to make cost-effective changes to the instance adaptation strategy.…”

Section: Introductionmentioning

confidence: 99%

Publisher-subscriber: An agent system for notification of versions in OODBs

Palanivel

Amouda

Kuppuswami

2009

2009 International Conference on Intelligent Agent &Amp; Multi-Agent Systems

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In object-oriented databases, the conceptual structure may not be constant and may vary due to variety of reasons like correcting mistakes, adding/removing features, updating database, etc. Class versioning is one the evolution strategy that addresses the above issues. However, class versioning may be yields some unexpected results to the database clients. The easiest method is to just set a cache to expire periodically depending on the types of data. This solution is approximation and tends to either refresh too often so that the data is unnecessarily sent over the network or not often enough so that the data becomes stale. Query notification is the solution to avoid frequent access to the database and hence proposed to design agent system for monitoring class versioning. Agent Technology has generated lots of excitement in recent years because of its promise as a new paradigm for conceptualizing, designing and implementing software systems. Software agents coordinate the application that run on databases and allows performing the sequence of events like flushing cache, database operations, monitoring, etc. This agent system consists of a publisher agent, subscriber agents and a database update agent. These agents monitor the database for any change that would change data the data in the query or its structure. When it detects such a change, the publisher agent generates a change notification message and subscriber agent subscribes the notification message. To implement this system, a database application was developed with two versions and applied the database change notifications. To promote more reusability and scalability, a publisher-subscriber pattern was integrated with this application.

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“…Kuppuswami et al [2] have also explored AOP techniques proposing a flexible instance adaptation approach. In this work, the authors have developed a system that supports instance adaptation with two aspects: update/backdate and selective lazy conversion aspects.…”

Section: Related Workmentioning

confidence: 99%

Towards a Flexible and Transparent Database Evolution

Pereira

Perez-Schofield

2014

Advances in Intelligent Systems and Computing

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Abstract. Applications refactorings that imply the schema evolution are common activities in programming practices. Although modern objectoriented databases provide transparent schema evolution mechanisms, those refactorings continue to be time consuming tasks for programmers. In this paper we address this problem with a novel approach based on aspect-oriented programming and orthogonal persistence paradigms, as well as our meta-model. An overview of our framework is presented. This framework, a prototype based on that approach, provides applications with aspects of persistence and database evolution. It also provides a new pointcut/advice language that enables the modularization of the instance adaptation crosscutting concern of classes, which were subject to a schema evolution. We also present an application that relies on our framework. This application was developed without any concern regarding persistence and database evolution. However, its data is recovered in each execution, as well as objects, in previous schema versions, remain available, transparently, by means of our framework.

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Applying Aspect-Oriented Approach for Instance Adaptation for Object-Oriented Databases

Cited by 4 publications

References 6 publications

Modularizing application and database evolution - an aspect-oriented framework for orthogonal persistence

Modularizing application and database evolution - an aspect-oriented framework for orthogonal persistence

Publisher-subscriber: An agent system for notification of versions in OODBs

Towards a Flexible and Transparent Database Evolution

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