[Springframework-developer] SimpleRemoteSlsbInvokerInterceptor - create per method invocation

[Les A. H. <le...@ha...>]

Hiya folks,

I was digging around in the source code and noticed that the
SimpleRemoteSlsbInvokerInterceptor "create"s a new EJB handle per method
invocation (via the newSessionBeanInstance() method in the parent
AbstractRemoteSlsbInvoker).

Aren't there performance implications when creating a new remote handle _per_
method invocation?  It seems to me like the performance overhead (network
calls, garbage collection, etc) could be substantial if you reference many
ejb's in a system.

Is there a fundamental reason why the stub returned upon calling create() is not
cached for further use?

For my own personal use, I subclassed the
SimpleRemoteStatelessSessionProxyFactorybean and created a
CachingRemoteSlsbProxyFactoryBean.  This class caches the returned stub upon
the first call to newSessionBeanInstance() and then uses that stub for further
method invocations.

Is there anything wrong with that approach?   I just want to make sure what I'm
doing doesn't violate any design principles...

Thanks,

Les