The Implementation and Execution Framework of a Role Model Based Language, EpsilonJ

Monpratarnchai, Supasit; Tamai, Terutaka

doi:10.1109/snpd.2008.103

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…Monpratarnchai and Tamai (Monpratarnchai & Tamai 2008) introduce an extension of Java, EpsilonJ, featuring role modeling (that is, a set of roles to represent collaboration carried out in that context, e.g. between an employer and its employees) and object adaptation (that is, a dynamic change of role, to participate in a context by assuming one of its roles).…”

Section: Class-based Languagesmentioning

confidence: 99%

A protoype-based approach to object evolution.

Ciaffaglione¹,

Gianantonio²,

Honsell³

et al. 2021

JOT

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We investigate, in the context of functional prototype-based languages, a calculus of objects which might extend themselves upon receiving a message, a capability referred to by Cardelli as a self-inflicted operation. We present a sound type system for this calculus which guarantees that evaluating a well-typed expression will never yield a message-not-found runtime error. The resulting calculus is an attempt towards the definition of a language combining the safety advantage of static type checking with the flexibility found in dynamically typed languages.

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Section: Class-based Languagesmentioning

confidence: 99%

A protoype-based approach to object evolution.

Ciaffaglione¹,

Gianantonio²,

Honsell³

et al. 2021

JOT

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show abstract

“…Then, Bob calls Alice during her meeting and he receives a BUSY response (3,4). When Alice becomes available (5,6), a new invitation from Bob results in a redirect response including Alice's address to initiate a dialog (7,8). Thanks to the returned address, Bob can directly contact Alice to establish a successful dialog (9 to 18).…”

Section: Issues In Sip-based Applications Designmentioning

confidence: 99%

“…ObjectTeam/J [5] and EpsilonJ [7] are extensions of Java that group roles which interact into collaboration modules. Roles inside a collaboration module are played by objects of base classes either explicitly or implicitly, enabling them to interact.…”

Section: Related Workmentioning

confidence: 99%

Session-Based Role Programming for the Design of Advanced Telephony Applications

Vanwormhoudt

Flissi

2011

Distributed Applications and Interoperable Systems

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Abstract. Stimulated by new protocols like SIP, telephony applications are rapidly evolving to offer and combine a variety of communications forms including presence status, instant messaging and videoconferencing. This situation changes and complicates significantly the programming of telephony applications that consist now of distributed entities involved into multiple heterogeneous, stateful and long-running interactions. This paper proposes an approach to support the development of SIP-based telephony applications based on general programming language. Our approach combines the concepts of Actor, Session and Role. Role is the part an actor takes in a session and we consider a session as a collaboration between roles. By using these concepts, we are able to break the complexity of SIP entities programming and provide flexibility for defining new ones. Our approach is implemented as a coding framework above JAIN-SIP.

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“…Furthermore, contexts are independent reusable components to be deployed separately from objects. A Java-based implementation language EpsilonJ is also developed [22].…”

Section: Introductionmentioning

confidence: 99%

Towards safe and flexible object adaptation

Kamina

Tamai

2009

International Workshop on Context-Oriented Programming - COP '09

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In this paper, a programming language NextEJ is proposed. NextEJ is based on Epsilon model, which realizes object adaptation to contexts. The novelty of Epsilon model is its ability to make objects be able to freely enter or leave contexts dynamically and belong to multiple contexts at a time. However, such kind of flexibility also easily brings type-unsafety. NextEJ tackles this problem by introducing a new feature called context activation scope. Inside a context activation scope, it is assured that an object is always bound with the role activated so that no method-notunderstood errors occur at run-time. Furthermore, context activation scope can be nested so that multiple contexts can be activated at a time. A role instance has a pre-defined field thisContext which refers to its enclosing context instance. In the case of multiple context activations, the reference of thisContext is interpreted as a composite context whose behavior is determined by the order of activations.

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The Implementation and Execution Framework of a Role Model Based Language, EpsilonJ

Cited by 6 publications

References 7 publications

A protoype-based approach to object evolution.

A protoype-based approach to object evolution.

Session-Based Role Programming for the Design of Advanced Telephony Applications

Towards safe and flexible object adaptation

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