Hi, > > My question is that is it possible to support strong migration of OSGi > > bundles? > > Not sure what you mean by this... > I would like to put into account concept of migration in terms of Java normal program. Migration concept can normally classified based on two fundamental aspects: state and code migration. Code migration refers to code transfer and state migration refers to object's state transfer. Strong migration can be identified as a migration technique which can be realized by instrumenting code migration as well as strong state migration. Strong state migration is extensively determined from the concept of state migration. Strong state migration is claimed to require strong execution migration and data migration. Strong execution migration in turn is a extended concept of execution migration and it can be attained by implemeting strong program counter migration and strong thread migration and strong data migration. Strong data migration in turn demands stack, member and resource migration. And weak migration can be implemented to have such capabilities: the code segment is transmitted to target host with some initialized data or in other words, weak migration can be realized by only code migration.
And I do believe that OSGi bundle is in fact can be considered as a Java normal program and we can apply the concept of migration to OSGi bundle. Is it correct? As far as I know that whenever OSGi bundle reaches remote OSGi platform, it will probably loose all its states because it must be restarted by invoking the method Start(Bundlecontext bc) inherited from the interface Bundleactivator. So far, I do not know if there are on going project tacking concerned problems of migrating OSGi bundles or not and I do not know about the feasibility of implementing strong migration or some types of weak migration in terms of OSGi bundles. > > Cheers > Niclas Thank you a lot for your attention and I am looking forward to hearing your opinion. -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer _______________________________________________ OSGi Developer Mail List [email protected] http://www2.osgi.org/mailman/listinfo/osgi-dev
