POE: multiple event handlers

johnnywang has asked for the wisdom of the Perl Monks concerning the following question:

In POE, is it possible to register multiple event handlers for a single event? sort of like publish/subscribe messaging. For example, suppose I have an "order" event, I'd like several handlers to be invoked: one to insert into db, one to log, one to send email, etc. I could send multiple events, but that's not as nice.

Comment on POE: multiple event handlers

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Re: POE: multiple event handlers by RMGir (Prior) on Apr 12, 2005 at 13:04 UTC
(Edit: Found POE_Cookbook answer.) I deleted my initial idea; I don't think it would have worked. Check out http://poe.perl.org/?POE_Cookbook/Broadcasting_Events. The event registry approach looks like it's what you need. If you come up with a cool solution, please follow up to your node. I'm looking forward to seeing the correct solution. Mike	[reply]
Re^2: POE: multiple event handlers by johnnywang (Priest) on Apr 12, 2005 at 17:20 UTC
Broadcasting solves a slightly different problem, namely sending the same event to all sessions. My problem is to have multiple event-handlers within the same session, so I can call yield() and still got handler multiple times. One hack is to re-send multiple events, but that's ugly.	[reply]
Re^3: POE: multiple event handlers by RMGir (Prior) on Apr 12, 2005 at 19:37 UTC
One hack is to re-send multiple events, but that's ugly. Agreed, but that looks like it's the way to do it. Something like http://poe.perl.org/?POE_Cookbook/Anonymous_Inline_Subrefs would at least let you dynamically play with the registered set of responders for an event. Mike	[reply]