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From "Richard S. Hall (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (FELIX-1295) ServiceRegistry increments/decrements service use count after/before getService/ungetService() is called on ServiceFactory
Date Wed, 29 Jul 2009 20:18:15 GMT

     [ https://issues.apache.org/jira/browse/FELIX-1295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard S. Hall resolved FELIX-1295.
------------------------------------

    Resolution: Fixed

I didn't commit this as part of FELIX-1277 because it is sufficiently unrelated and also because
I noticed some issues and ended up trying to take a crack at fixing this issue differently.
I think it is working now and still passing the TCK.

> ServiceRegistry increments/decrements service use count after/before getService/ungetService()
is called on ServiceFactory
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: FELIX-1295
>                 URL: https://issues.apache.org/jira/browse/FELIX-1295
>             Project: Felix
>          Issue Type: Bug
>          Components: Framework
>    Affects Versions: felix-1.8.1
>            Reporter: David Bosschaert
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: felix-2.0.0
>
>
> The OSGi specification says about the call to BundleContext.getService():
> "1 If the service has been unregistered, null is returned.
> 2 The context bundle's use count for this service is incremented by one.
> 3 If the context bundle's use count for the service is currently one and the
> service was registered with an object implementing the ServiceFactory
> interface, the ServiceFactory.getService(Bundle, ServiceRegistration)
> method is called to create a service object for the context bundle."
> The OSGi specification says about the call to ServiceFactory.ungetService():
> "The bundle's usage count for that service object must drop to zero 
> after this call returns; that is, the bundle is about to release its last 
> dependency on the service object."
> However, the current implementation decrements it just after ServiceFactory.getService()
and just before ServiceFactory.ungetService().

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