David Jencks created FELIX-4507:
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Summary: [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-1.8.2
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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