Object-Oriented Data Access Layer

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Helsinki University of Technology | Diplomityö
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Date

2008

Department

Informaatio- ja luonnontieteiden tiedekunta

Major/Subject

Ohjelmistotekniikka

Mcode

T-106

Degree programme

Language

en

Pages

70 (+9)

Series

Abstract

Object-oriented programming is perhaps the most popular programming paradigm, whereas the data storage used is most likely a relational database. Even if these two paradigms in no way contradict each other, their fundamentally different approaches sometimes cause problems. Applications without a well defined data access layer easily end up having a substantial amount of code dedicated to the sole purpose of moving data from and to the data source. This thesis defines a model based data access layer, where an abstract model of the data structure is created using objects within the application domain. This thesis shows how that model can be utilized to overcome the gap between an object-oriented programming environment and a relational database. Furthermore it shows how having this modularized framework simultaneously makes it easier to create more robust applications. The framework has also proved to be an excellent platform for building reusable libraries upon, enabling faster application development.

Description

Supervisor

Soisalon-Soininen, Eljas

Thesis advisor

Jakobsson, Mårten

Keywords

object-orientated programming, objekt-orienterad programmering, database abstraction, databasabstraktion, data access layer, SQL, SQL, objekt-relationell mappning, object-relational mapping, återanvändning av kod, code reuse

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Citation

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-2020120554669

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[dipl] Teknillinen korkeakoulu / TKK