Search code examples
ejbrmiearappserver

Injecting remote interface from within the same EJB-JAR or EAR

Is calling a remote @remote interface from within the same EJB-JAR or EAR would make the app server use RMI/RMI-IIOP?

Or the App Servers would be much intelligent and doing this call locally as if it calls a @local interface???

Solution

  • The container should not do a truly @local call because @local call pass by reference and @remote calls pass by value. However the container can optimise the @remote call so that the full RMI/IIOP network stack is not hit. As I recall WebSphere does such "local" optimisations, I can't speak to other vendors.

    [History: Way back in early pre EJB3 versions of WebSphere there was an option to enable the moral equivalent of the "make @remote look like @local" but I don't think later version do offer this.]