Guarana : uma arquitetura de software para reflexão computacional implementada em Java tm

AUTOR(ES)
DATA DE PUBLICAÇÃO

1998

RESUMO

This dissertation is a collection of papers written in English, with an introduction and a conclusion in Portuguese. The first paper describes Guaraná, a language-independent reftexive architecture, whose run-time meta-leveI protocol permits a high degree of reuse of meta-leveI code. The protocol was designed so as to provide, in a secure manner, ftexibility and reconfigurability of metaleveI behavior of objects. The second paper describes our implementation of this architecture through the modification of a free implementation of the JavaTM Virtual Machine (JVM) Specification, but keeping the Java Programming Language intact. vVith our approach, existing Java applications can be made refiexive, even if their source code is not available. We describe the modifications we have introduced in the JVM, as well as the Java classes that complete the implementation, and measure the impact of the modifications on the performance of applications and the JVM. The third paper is a tutorial directed to Java TM programmers who are willing to know and use the features of Guaraná. It covers the workings of Guaraná, from basic interception mechanisms to advanced topics, exposing some of the internal details of the implementation of Guaraná. The fourth and last paper introduces MOLDS, a library of meta-leveI compo nents suit able for building distributed applications, that we intend to implement on top of Guaraná. This library will explore Guaraná s features to combine independent meta-objects that implement mechanisms such as replication, persistence, etc, in order to form complex meta-leveI behavior, in a transparent way, from the point of view of the application programmer

ASSUNTO(S)

programação orientada a objetos (computação) engenharia de software processamento eletronico de dados tolerancia a falha (computação)

ACESSO AO ARTIGO

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