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https://issues.apache.org/jira/browse/OPENJPA-2285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Curtis resolved OPENJPA-2285.
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Resolution: Fixed
Fix Version/s: 2.2.2
> L2 cache doesn't store FK(s) back into the cache when lazy loading data.
> ------------------------------------------------------------------------
>
> Key: OPENJPA-2285
> URL: https://issues.apache.org/jira/browse/OPENJPA-2285
> Project: OpenJPA
> Issue Type: Bug
> Components: datacache, performance
> Affects Versions: 2.0.1, 2.1.1, 2.2.0, 2.3.0
> Reporter: Rick Curtis
> Assignee: Rick Curtis
> Fix For: 2.3.0, 2.2.2
>
>
> I ran into a performance bug recently where we aren't caching data, but we
> could be. The data that we aren't caching is when lazy loading an unowned
> relationship .
> For instance, if we have the model Person <-> Address(LAZY, owner) and we
> find Person, that data will get stored in the cache. Since Address owns the
> relationship, we don't have the FK to cache(yet). Later we go to lazily load
> the address and we need to issue a joined query to find the Address which
> corresponds to our Person. Once that data has been loaded, we don't store the
> FK back into the cache.
> With this JIRA I'm going to introduce a change that will make our runtime
> re-cache the Person data when additional data is loaded.
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