-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 09/24/2010 05:45 PM, Martin Pool wrote: > On 24 September 2010 23:27, Aaron Bentley <[email protected]> wrote: > Right. I was wondering if Launchpad was going to (now, or later) > change to just sending "this branch tip changed" and then have the > recipients decide what to do with that. For instance, we want to > update precalculated mp preview diffs when the branch changes. > Ideally, in a message system, the branch scanner wouldn't need to know > anything about that, only the job that's subscribed to those events.
We are already pretty decoupled there. When the scanner notices a branch tip change, it fires a TipChanged event. One of the subscribers generates the appropriate UpdatePreviewDiffJob. > If we want to take that direction perhaps it's better not considering > it only as a task dispatch system? I don't know about that. It's quite useful to represent this as a job, not an event. (You could do an event message which generates a job message, but that seems inefficient to me.) We can then inform our users that a diff is pending (and maybe distinguish between "pending" and "in progress"). This is a real-world example of imperative messages imply an expected consequence, while informative messages don't, and leave us less-informed as a consequence. Aaron -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEUEARECAAYFAkygoDMACgkQ0F+nu1YWqI2NdgCfUi7M5/dYIdyIZ98TBJuf0VE9 FNIAljoZUtpdnethkQzOlWoj43DW4iE= =mAYY -----END PGP SIGNATURE----- _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
