8. Transactions and concurrency control

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It is important to understand that the term transaction has many different yet related meanings in regards to persistence and Object/Relational Mapping.
In most use-cases these definitions align, but that is not always the case.

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• Might refer to the physical transaction with the database.
• Might refer to the logical notion of a transaction as related to a persistence context.

• Might refer to the application notion of a Unit-of-Work, as defined by the archetypal pattern. </div>

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  This documentation largely treats the physical and logic notions of a transaction as one-in-the-same.

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