[spencercw]

I do basically the same thing. If a method tries to start a transaction when a transaction is already open then it's immediately rejected.

I don't really like automatic transaction joining behaviour because it makes it hard to reason about the application behaviour. Will this transactional method commit when it returns? It's impossible to tell without looking at who's calling it.

It also encourages annoying behaviour like, oh this method uses the database, better make it @Transactional.