On: Clojure, the Good Parts

[shriphani]

Ok I see your point. I am curious how that would happen though - essentially you'll need to bind the txn to a different transaction from the one intended and the whole thing locks up.

I am curious how to guarantee eager evaluation - dorun, doall and run! are all sequence-oriented right?

[prospero → shriphani]

It's not that hard to imagine: map a `get` over a series of keys inside a transaction, return that lazy sequence, and use the results to do another series of operations within a different transaction.

Libraries typically can't guarantee eager evaluation, since that's a property of the top-level execution. That's why libraries shouldn't use `binding`.

[shriphani → prospero]

Funnily enough, I think I picked up this habit from Korma source: https://github.com/korma/Korma/blob/master/src/korma/db.clj#...

[shriphani → prospero]

Wow I am not sure how I missed that - thanks for pointing it out. The (transaction-> ###) pattern looks a lot nicer to me. Really appreciate the help.