EventAware cache does not persist correctly when using the
StoreEventRegistryImpl
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Key: COCOON-2152
URL: https://issues.apache.org/jira/browse/COCOON-2152
Project: Cocoon
Issue Type: Bug
Components: Blocks: Event Cache
Affects Versions: 2.1.10, 2.1.11-dev (Current SVN), 2.2-dev (Current SVN)
Reporter: Ellis Pritchard
When using the DefaultEventRegistryImpl the functionality now works as expected
(events are persisted and restored) after the patch applied in COCOON-2146.
However, there's still a problem with StoreEventRegistryImpl.
The behaviour is that it doesn't seem to actually write/restore any event
entries: the maps in the EventRegistryDataWrapper are empty (but not null)
after restart, even though the actual cache entry (key EVENTREGWRAPPER) was
found in the Store, and the entries were present when persist() was called.
The effect of this is to correctly restore the cached entries, but discard all
the events, which means that event-flushes don't work any more, which is not a
good thing.
I've tracked this down to the fact that
AbstractDoubleMapEventRepository#dispose() which performs the persist(), then
immediately clear()s the maps, WHICH HAVEN'T YET BEEN WRITTEN TO DISK BY
EHCACHE SHUTDOWN!
This code has probably never worked :)
Patches to follow; I propose modifying dispose() to null the map fields, but
not perform clear() on them.
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