Design of a simple and effective object-to-relational mapping technique

Lodhi, Fakhar; Ghazali, M.A.

doi:10.1145/1244002.1244312

Cited by 9 publications

(8 citation statements)

References 5 publications

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“…The second problem is the inversion of the logical association direction from the object model to the relational structure [21]. Instead of the collection owner pointing to the values of the collection, elements within that collection would reference their owner.…”

Section: Table Structure Adaptionmentioning

confidence: 99%

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Object-relational mapping with SqueakSave

Kowark

Hirschfeld

Haupt

2009

Proceedings of the International Workshop on Smalltalk Technologies

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Object persistence is an important aspect of application architectures and development processes. Different solutions in this field evolved over the last decades and new approaches are still subject to research. While object-oriented databases become increasingly popular, the usage of relational databases through an object-relational mapping layer is still one of the most widely adopted techniques. However, most object-relational frameworks require a considerable amount of mapping descriptions between object models and relational database schemas. This additional layer has to be maintained by developers along with the object model itself.In this paper, we present an approach to object-relational mapping that utilizes the introspection and intercession features of Smalltalk to free developers from manually creating those mapping descriptions. The presented framework analyzes the existing models and automatically deduces suitable database schemas. Thus, it aids development processes by neglecting the need for a separate mapping layer.A detailed introduction of the programming interface is followed by a description of the framework's internal implementation details. Additionally, the performance of the framework is evaluated through a comparison against a comparable system for the same programming environment.

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Section: Table Structure Adaptionmentioning

confidence: 99%

“…Each change of the object model implies an alteration of the description layer [21,22]. Seamless integration of O/R mapping frameworks into applications is moreover influenced by the degree of intrusiveness into the existing object and programming model.…”

Section: Introductionmentioning

confidence: 99%

Object-relational mapping with SqueakSave

Kowark

Hirschfeld

Haupt

2009

Proceedings of the International Workshop on Smalltalk Technologies

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“…The typical data driven application, uses a relational database on the data layer and objects on the business code layer (Figure 1), which creates a problem known as object-relational impedance mismatch, derived from the fact that object-oriented and relational paradigms represent information in manners that are quite different from each other, resulting in two different models for representing the same information (Lodhi and Ghazali, 2007). One of the solutions to the impedance mismatch problem, is the use of Object Relational Mapping (ORM) tools, that provide a mapping between the object model and the relational model, acting as an intermediary between an object oriented code base, and a relational database.…”

Section: Attribute Oriented Programmingmentioning

confidence: 99%

A SOURCE CODE BASED MODEL TO GENERATE GUI - GUI Generation based on Source Code with Declarative Language Extensions

Monteiro

Oliveira

Gonçalves

2008

Proceedings of the Third International Conference on Software and Data Technologies Special Session on Applications in Banking

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Abstract:Due to data-driven application nature and its increasing complexity, developing its user interface can be a repetitive and time-consuming activity. Consequently, developers tend to focus more on the user interface aspects and less on business related code. In this paper, we present an alternative approach to graphical user interface development for data-driven applications, where the key concept is the generation of concrete graphical user interface from a source code based model. The model includes the original source code metadata and non-intrusive declarative language extensions that describes the user interface structure. Some Object Relational Mapping tools already use a similar concept to handle interoperability between the data layer and the business layer. Our approach applies the same concept to handle business and presentation layer interoperability. Also, concrete user interface implementation will be delegated to specialized software packages, developed by external entities, that provide complete graphical user interfaces services to the application. When applying our approach, we expect faster graphical user interface development, allowing developers to refocus on the source code and concentrate their efforts on application core logic.

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“…In the context of data-driven applications, attributes can be used to address the problem of objectrelational impedance mismatch, which occurs due to the fact that object-oriented and relational paradigms represent information in manners that are quite different from each other (Lodhi and Ghazali, 2007). Object Relational Mapping (ORM) tools, deals with the impedance mismatch problem by providing mappings between the object model and the relational model, which are usually defined by external configuration resources.…”

Section: Attribute Oriented Programmingmentioning

confidence: 99%

GUI GENERATION BASED ON LANGUAGE EXTENSIONS - A Model to Generate GUI, based on Source Code with Custom Attributes

Monteiro

Oliveira

Gonçalves

2008

Proceedings of the Tenth International Conference on Enterprise Information Systems

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Abstract:Due to data-driven application nature and its increasing complexity, developing its user interface can be a repetitive and time-consuming activity. Consequently, developers tend to focus more on the user interface aspects and less on business related code. In this paper, we're presenting an alternative approach to graphical user interface development for data-driven applications, that allows developers to refocus on the source code and concentrate their efforts on application core logic. The key concept behind our approach is the generation of concrete graphical user interface from a source code based model, which includes the original source code metadata and non-intrusive declarative language extensions that describes the user interface structure. Concrete user interface implementation will be delegated to specialized software packages, developed by external entities, that provides complete graphical user interfaces services to the application. When applying our approach, we're expecting faster graphical user interface development.

show abstract

Design of a simple and effective object-to-relational mapping technique

Cited by 9 publications

References 5 publications

Object-relational mapping with SqueakSave

Object-relational mapping with SqueakSave

A SOURCE CODE BASED MODEL TO GENERATE GUI - GUI Generation based on Source Code with Declarative Language Extensions

GUI GENERATION BASED ON LANGUAGE EXTENSIONS - A Model to Generate GUI, based on Source Code with Custom Attributes

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