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From "Rick Curtis (JIRA)" <>
Subject [jira] Created: (OPENJPA-1603) Decouple the QueryCache from the DataCache
Date Mon, 29 Mar 2010 20:00:27 GMT
Decouple the QueryCache from the DataCache

                 Key: OPENJPA-1603
             Project: OpenJPA
          Issue Type: Improvement
          Components: datacache
    Affects Versions: 2.0.0
            Reporter: Rick Curtis
            Assignee: Rick Curtis

In doing some testing I have found that there is a valid use case where one would want to
use the query results cache (openjpa.QueryCache), but not the DataCache. I'm using this JIRA
to remove the dependency between these two caches.

The gist of this change is that the QueryCache will now talk with the StoreContext to see
if the results of a cached query are contained in the L1 cache OR by any of the DelegatingStoreManager's
cache. The default JDBCStoreManager and the XMLStoreManager both do not have any concept of
a cache and will always not have any cached results.

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