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https://issues.apache.org/jira/browse/FELIX-4507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler closed FELIX-4507.
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> [DS] "persistent" factory components
> ------------------------------------
>
> Key: FELIX-4507
> URL: https://issues.apache.org/jira/browse/FELIX-4507
> Project: Felix
> Issue Type: New Feature
> Components: Declarative Services (SCR)
> Affects Versions: scr-1.8.0
> Reporter: David Jencks
> Assignee: David Jencks
> Fix For: scr-2.0.0
>
>
> The lifecycle constraints of factory components make them generally useless.
> This introduces a different kind of factory component where:
> - the componentFactory service is always registered irrespective of whether
> any references are available
> - the components created by newInstance act like regular components created
> by config admin factory pids; the component is present whether or not
> references are available and the instance comes and goes as references come
> and go. Calling dispose removes the component.
> - a modify method is added to the ComponentInstance returned from
> newInstance. (the ComponentInstance implements a new, extension, interface
> with the modify method)
> There are some consequences, such as ComponentInstance.getInstance() may
> return null and may not always return the same object.
> This behavior can be turned on for a particular component with a "extension"
> attribute in the component descriptor
> xmlns:felix="http://felix.apache.org/xmlns/scr/extensions/v1.0.0";
> felix:persistentFactoryComponent="true"
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