The design and implementation of a role model based language, EpsilonJ

Abstract

In the social reality, objects communicate with each other by means of assuming roles to establish collaboration, and then can adaptively change their roles to obtain other interaction possibilities. To achieve the goal of supporting and realizing such object collaboration and adaptation in the object-oriented technology, especially in Java, a new adaptive role-based model Epsilon and a corresponding language EpsilonJ have been proposed. In this paper, we present the background of adaptive role-based models, and then focus on the design of this Epsilon model and its language. A program written in EpsilonJ must be translated into executable code to execute. We propose a translation scheme of mapping EpsilonJ syntax to the standard Java. With this translation scheme, we implemented a practical syntax translator as a preprocessor of EpsilonJ program, through lexical analysis and parsing. Evaluation shows that our translator can effectively perform transformation in high accuracy, and translated programs can be executed more efficiently than the existing implementation of EpsilonJ.

A Metamodel Family for Role-Based Modeling and Programming Languages

“…Nonetheless, the project has been abandoned [59]. A more recent approach towards context oriented programming is NextEJ [42] as the successor of EpsilonJ [54]. It provides Contexts as first class citizens which do not only group roles but also represent an activation scope at runtime.…”

Enabling View-based Programming with SCROLL

“…Nevertheless, the project has been abandoned [43]. A more recent approach towards context-oriented programming is NextEJ [29] as the successor of EpsilonJ [40]. It provides Contexts as first class citizens which do not only group roles but also represent an activation scope at runtime.…”

Software Language Engineering

“…Nonetheless, the project has been abandoned [59]. A more recent approach towards context oriented programming is NextEJ [42] as the successor of EpsilonJ [54]. It provides Contexts as first class citizens which do not only group roles but also represent an activation scope at runtime.…”