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From "Kevin Sutter (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-732) Updates to entities via Lifecycle callback methods
Date Tue, 23 Sep 2008 19:51:44 GMT
Updates to entities via Lifecycle callback methods 
---------------------------------------------------

                 Key: OPENJPA-732
                 URL: https://issues.apache.org/jira/browse/OPENJPA-732
             Project: OpenJPA
          Issue Type: Bug
          Components: kernel
    Affects Versions: 1.2.1, 1.3.0
            Reporter: Kevin Sutter


http://n2.nabble.com/Updates-to-entities-via-Lifecycle-callback-methods-td1110631.html

In a nutshell, if we are to allow the updating of the entities passed into the Lifecycle callback
methods, then we have a couple of problems (given the scenario of updating the entity passed
into the @PreUpdate method):

o  The designated @Version field is getting updated more often than desired causing the transaction
to rollback.
o  The @PostUpdate method is getting invoked more than once.

I will post a testcase shortly.  If and when we decide to fix this, this simple testcase will
need to be expanded to include the updating of entities in other scenarios as well.

I am also getting verification from the JPA Expert Group as to whether these entities are
supposed to be updatable or not.  As one of the dev postings indicated, our OpenJPA documentation
indicates that they are updatable.  But, the JPA spec itself is not clear on this capability.
 Other vendors, such as Hibernate, allow for this.

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