Mobile objects in Java

Article type: Research Article

Authors: Moreau, Luc | Ribbens, Daniel

Affiliations: Electronics and Computer Science, University of Southampton, SO17 1BJ Southampton, UK. Tel.: + 44 23 8059 4487; Fax: + 44 23 8059 2865; E-mail: [email protected] | Service d'Informatique, University of Liège, 4000 Liège, Belgium. Tel.: +32 4366 2640; Fax: +32 4366 2984; E-mail: [email protected]

Abstract: {\it Mobile Objects in Java} provides support for object mobility in Java. Similarly to the RMI technique, a notion of client-side stub, called startpoint, is used to communicate transparently with a server-side stub, called endpoint. Objects and associated endpoints are allowed to migrate. Our approach takes care of routing method calls using an algorithm that we studied in. The purpose of this paper is to present and evaluate the implementation of this algorithm in Java. In particular, two different strategies for routing method invocations are investigated, namely {\it call forwarding} and {\it referrals}. The result of our experimentation shows that the latter can be more efficient by up to 19%.

Journal: Scientific Programming, vol. 10, no. 1, pp. 91-100, 2002