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From "Tomas Jura (Jira)" <>
Subject [jira] [Created] (CAY-2638) Cayennne sends commit
Date Mon, 04 Nov 2019 22:40:00 GMT
Tomas Jura created CAY-2638:

             Summary: Cayennne sends commit
                 Key: CAY-2638
             Project: Cayenne
          Issue Type: Bug
          Components: Core Library
    Affects Versions: 4.1.RC2
            Reporter: Tomas Jura

The cayenne sends the commits to the database ( after a lazy fetch, ... ). The transaction
boundaries are defined by a superior business logic and ORM must not corrupt this logic and
boundaries. Imagine for example that the Cayenne is part of an XA transaction, where the commit
is controled by a transaction manager and the commit guided by two phase commit protocol.
I'm afraid that any attempt to control transaction boundaries from ORM sooner or later clash
with required boundaries.

This design feature, automaticaly reject using cayenne as an ORM for any bit complex project
which want to use savepoint/rollback/commit commands. As far as I remember Cayenne 3 did not
touched the transaction state. Why Cayenne 4 touching the transaction?

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