Nested Transaction using Spring and Hibernate?

First, "nested" transactions, in the sense that there are multiple running transactions depending on each other, is not supported, afaik.

First, "nested" transactions, in the sense that there are multiple running transactions depending on each other, is not supported, afaik. Then, propagation=REQUIRED means that all methods with that propagation will: start a new transaction if there is none exists participate in an existing transaction if such exists. This means that in your scenario, a failure in F would rollback the entire transaction (because it is a single transaction, started by A, and propagated to other methods).

I would have completely agreed with you until I read (somewhere - am unable to find where it was) that commit happens as soon as the method completes. I think I am wrong in the understanding here. When does the actual commit happen (we don't have to do explicitly do that.

Right? )? – seminoobish Aug 23 at 7:29 the commit happens when the method that started the transaction completes.It is A in this case – Bozho Aug 23 at 7:42 okay.

Great. Thank you so much. – seminoobish Aug 23 at 8:00.

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