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Type System for the ComponentJ Programming Language

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Resumo:With the constant evolution of software systems need arises for more structured implementations, where processes like software updates and changes in systems can be easily made, with no need to change what had previously been implemented. One possible solution to this problem is the use of component-based programming languages. This kind of programming languages tries to promote not only code reuse but also a black-box discipline where it is not needed how a service is implemented, but only its interface so that it can be used. The ComponentJ programming language seeks to provide a simple way to perform component creation and composition, making this new programming paradigm somewhat easy to use. Because ComponentJ is meant to be an extension to the Java programming language it becomes possible to implement components using the whole expressiveness of this language. It is also possible, in ComponentJ, to dynamically change components and the object structure based on runtime decisions. This dynamic reconfiguration process allows, for instance, to perform changes/updates to a certain software system without having to stop its execution. The goal for this project is to implement a type system for the ComponentJ programming language, based on the work presented in [32, 28]. Type verification is syntax driven, and uses structural equivalence of types. Advanced techniques such as subtyping and type inference are also included in order to make the language more flexible. Besides the static type checker, a dynamic checker is also included, allowing the type safe application of runtime changes to the system (dynamic reconfiguration of objects) before their application.
Autores principais:Piriquito, Maria Margarida Lameira da Cunha
Assunto:Component orientation Type systems Dynamic reconfiguration Subtyping Type inference
Ano:2009
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Universidade Nova de Lisboa
Idioma:inglês
Origem:Repositório Institucional da UNL

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