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From "Tim Holloway (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-636) Clarify impedance mismatch between in-memory objects and their persistent counterparts
Date Thu, 12 Jun 2008 16:44:45 GMT
Clarify impedance mismatch between in-memory objects and their persistent counterparts
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                 Key: OPENJPA-636
                 URL: https://issues.apache.org/jira/browse/OPENJPA-636
             Project: OpenJPA
          Issue Type: Improvement
          Components: docs
         Environment: All
            Reporter: Tim Holloway
            Priority: Minor


Date objects persisted out and read back may not have exactly identical values due to differences
in the implicit precision of Java date object versus the actual database. The results can
be quite frustrating to developers who aren't aware of that fact.

A discussion of this problem can be found here:

http://saloon.javaranch.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic&f=78&t=004041&p=1

I think it deserves to be a topic in the user's guide, along with mention of similar imprecise
datatypes.

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