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Posted to dev@felix.apache.org by "David Jencks (JIRA)" <ji...@apache.org> on 2013/02/10 08:53:13 UTC
[jira] [Updated] (FELIX-3754) Services registered from within the
activate method may not be bound
[ https://issues.apache.org/jira/browse/FELIX-3754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Jencks updated FELIX-3754:
--------------------------------
Fix Version/s: (was: scr-1.6.4)
scr-1.8.0
> Services registered from within the activate method may not be bound
> --------------------------------------------------------------------
>
> Key: FELIX-3754
> URL: https://issues.apache.org/jira/browse/FELIX-3754
> Project: Felix
> Issue Type: Bug
> Components: Declarative Services (SCR)
> Affects Versions: scr-1.6.2
> Reporter: Felix Meschberger
> Assignee: Felix Meschberger
> Fix For: scr-1.8.0
>
> Attachments: FELIX-3754-improved.patch
>
>
> The Sling POST Servlet registers a number of services in the activate method and expects these services to be bound to itself. With SCR 1.6.0 this worked because each component instance had its dependency managers configured with its component instance.
> As of SCR 1.6.2 the DependencyManager instances are shared amongst all component instances and thus don't have a reference to the component instances. Instead actually bind, unbind and update services the DependencyManager instances call the respective component manager which then dispatches to the component instances.
> At the point in time when the activate method is called (in the ImmediateComponentManager.createComponentInstance method) the actual component instance is not "registered" with the component manager yet and thus a bind call while the activate method is called cannot be satisfied.
> To fix this, the component instance must be "registered" with the component manager before calling the activate method. If the activate method fails, the instance must of course be "unregistered" again.
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