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From "Jody Grassel (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1151) Cache the current-time timestamp in AbstractQueryCache.onTypesChanged()
Date Tue, 30 Jun 2009 21:18:47 GMT
Cache the current-time timestamp in AbstractQueryCache.onTypesChanged()
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                 Key: OPENJPA-1151
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1151
             Project: OpenJPA
          Issue Type: Improvement
          Components: jdbc
            Reporter: Jody Grassel
            Priority: Trivial


AbstractQueryCache.java contains the following block:

           for (Object o: changedTypes) {
                String name = ((Class) o).getName();
                if(!changedClasses.containsKey(name))
                    changedClasses.put(name, 
                        new Long(System.currentTimeMillis()));
            }

Suggesting caching the Long containing the entity type's last-modification timestamp outside
of the for-loop to improve performance and reduce memory usage.

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