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https://issues.apache.org/jira/browse/OPENJPA-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12840818#action_12840818
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Ravi P Palacherla commented on OPENJPA-1511:
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>> * Execute a cached query which will return [E1]. This *should* result in
>> [E1] being placed back in the L2 cache, but it isn't.
When [E1] is in L1cache then I think there is no need to check L2 cache ?
It is only when [E1] is missing in L1cache is when it tries to fetch from
L2cache.
At this time as L2cache does not contain [E1] it goes to DB and re-populate
L2cache with [E1].
> Executing a cached query doesn't properly cache results after DataCache
> eviction
> --------------------------------------------------------------------------------
>
> Key: OPENJPA-1511
> URL: https://issues.apache.org/jira/browse/OPENJPA-1511
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.0-beta
> Reporter: Rick Curtis
> Assignee: Ravi P Palacherla
> Attachments: TestCache.java
>
>
> When doing some testing I found that the QueryCache sometimes doesn't put
> results into the DataCache.
> I haven't had time to debug the problem, but I'm opening this JIRA so I can
> attach the test case I've created.
> The test scenario is as follows:
> String query = "Select t FROM Item t where 1=1 ORDER BY t.id";
> items = em.createQuery(query,Item.class).getResultList();
> assertTrue(storeCache.contains(Item.class, items.get(0).getId()));
> // Make sure that all of the results are in the DataCache.
> for(Item o : items){
> assertTrue(storeCache.contains(Item.class, o.getId()));
> }
> storeCache.evict(Item.class,items.get(0).getId());
> // Evict one result
> assertFalse(storeCache.contains(Item.class,items.get(0).getId()));
>
> // Executing the same query should re-populate the datacache
> items = em.createQuery(query,Item.class).getResultList();
> assertTrue(storeCache.contains(Item.class, items.get(0).getId())); // fails
> here
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