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https://issues.apache.org/jira/browse/JCR-3257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229107#comment-13229107
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Alex Parvulescu commented on JCR-3257:
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> ItemManager is at the very core of jackrabbit. unless there's a real issue
> i'd rather not touch it.
That's why I submitted the patch, I think having the put and remove operation
mirroring each other is important as it relates to the cache efficiency.
Not wanting to touch the code is perfectly understandable. I was hoping for at
least a code review.
Feel free to close the issue, no worries.
> ItemManager cache access tweaks
> -------------------------------
>
> Key: JCR-3257
> URL: https://issues.apache.org/jira/browse/JCR-3257
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-core
> Reporter: Alex Parvulescu
> Attachments: JCR-3257.patch
>
>
> I started with #evictItem but I ended up doing some more tiny changes overall:
> - #evictItem: we can safely refactor the #get -> #remove into a simple
> #remove:
> It appears that the check "cached == data" only applies to shareable nodes. I
> ran the entire jacorabbit-core test suite and the check failed 9 times, out
> of which 3 were related to shareable nodes and the other 6 were just
> comparing to null, in which case we can safely evict the value.
> So if we refactor the method to be consistent with #cacheItem, we can safely
> remove the "==" check. The shareableNodesCache has the shareable nodes info,
> itemCache everything else.
> - #cacheItem doesn't need to check if the key exists, #put already returns
> the info
> - #itemDestroyed does not need to synchronize on itemCache as #evictItems
> already does that
> - ShareableNodesCache#evictAll doesn't need to be synchronized - that is
> already covered by #evictItems with the synchronization on itemCache
> patch follows shortly
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