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Dalang - A Reflective Extension for Java

Lookup NU author(s): Ian Welch, Dr Robert Stroud

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Abstract

Current implementations of reflective Java extensions typically either require access to source code, or require a modified Java platform. This makes them unsuitable for applying reflection to Commercial-off-the Shelf (COTS) systems. In order to address this we developed a prototype Java extension Dalong based on class wrapping that worked with compiled code, and was implemented using a standard Java platform. In this paper we evaluate the class wrapper approach, and discuss issues that relate to the transparent application of reflection to COTS systems. This has informed our design of a new version of Dalong called Kava that implements a metaobject protocol through the application of standard byte code transformation. Kava leverages the capabilities of byte code transformation toolkits whilst presenting a high-level abstraction for specifying behavioural changes to Java components.

Publication metadata

Author(s): Welch I, Stroud RJ

Publication type: Report

Publication status: Published

Series Title: Department of Computing Science Technical Report Series

Year: 2000

Pages: 24

Print publication date: 01/01/2000

Source Publication Date: 2000

Report Number: 672

Institution: Department of Computing Science, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne

URL: http://www.cs.ncl.ac.uk/publications/trs/papers/672.pdf

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