[jira] [Created] (TAP5-2553) Support pseudo nested JPA transactions and pre/post commit hooks

["Kalle Korhonen (JIRA)" <ji...@apache.org>]

Kalle Korhonen created TAP5-2553:
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             Summary: Support pseudo nested JPA transactions and pre/post commit hooks
                 Key: TAP5-2553
                 URL: https://issues.apache.org/jira/browse/TAP5-2553
             Project: Tapestry 5
          Issue Type: New Feature
          Components: tapestry-jpa
    Affects Versions: 5.4.1
            Reporter: Kalle Korhonen


Plain JPA does not support nested transaction but by keeping track of @CommitAfter stack, we can support "pseudo nested" transactions. The concept was first demonstrated in https://github.com/satago/tapestry-jpa-transactions. @kaosko started an effort to merge the codebase to T5 (https://github.com/satago/tapestry-jpa-transactions/pull/5) but because of fundamental limitations in the original design (no support for multiple persistence units, pre/post commit hooks were only available for the last transaction), @kaosko refactored the implementation for more general use (https://github.com/kaosko/tapestry-jpa-transactions). The original code was under Apache license with support from the original authors to merge the codebase to T5 and the refactored implementation was solely made by @kaosko. This issue is about merging the refactored implementation to T5.5 and replacing the existing JPA classes (mainly class workers, advisors) by the those provided by the new implementation.



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