add 'registryAboutToShutdown' handler
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Key: TAP5-1359
URL: https://issues.apache.org/jira/browse/TAP5-1359
Project: Tapestry 5
Issue Type: Improvement
Components: tapestry-ioc
Affects Versions: 5.2.4
Reporter: Paul Stanton
It is impossible to inject a service into a handler of
'RegistryShutdownListener .registryDidShutdown' since the registry is already
shutdown at this point. this makes it difficult to perform some more intricate
termination logic when multiple services need to collude.
I propose the inclusion of a new interface 'RegistryAboutToShutdownListener'
with the method 'registryAboutToShutDown'.
In the case of a tapestry application, it would need to be called after Http
requests have been disallowed, but before the registry because unusable.
There may need to be some ordered configuration to control service dependencies
as they shut down, and I expect some other considerations I haven't thought
of....
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