[jboss-dev-forums] [JBoss OSGi Development] - Re: Service integration with MC

[alesj]

"alesj" wrote : 
  | But that still leaves the problem of actual service usage at undeploy:
  | "alesj" wrote : 
  |   | whereas service could still hold onto the ref - which might be an issue if that ref is ServiceFactory,
  |   | as ServiceFactory::unget could modify the actual created service.
  |   | 
Actually SF::unget is called at service unregister,
so this is a bit different, but doesn't change the problem that much.

We could still end up with "illegal" service,
but that's also the case right now - any install/uninstall that keeps injected service ref,
would be unwinded to appropriate state, but the ref would still be there,
once it's re-winded.

e.g.

  | public someInstall(@Inject Foo bar)
  | { 
  |    if (this.bar != null) // which is true after unwind/re-wind
  |    ... // do some crazy stuff on it
  | 
  |    this.bar = bar;
  | }
  | 

But I guess that's the problem of encapsulation,
where we go beyond plain java beans.

So, the problem just remains with the ugliness,
but I guess we can cope with that.

  | try
  | {
  |    // do some uninstall on CC:getTarget
  | }
  | finally
  | {
  |   // invoke CC:ungetTarget
  | }
  | 

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