Re: get_handlers and set_handlers - purpose and use cases?

Michael Ludwig schrieb am 23.03.2010 um 00:50:43 (+0100):
> What's the purpose and what are the use cases for the methods
> get_handler and set_handler available from Apache2::RequestUtil
> and Apache2::ServerUtil?

My desire to believe in the wisdom of the designers of the API has kept
me busy thinking about this. Considering that we have:

* get_handlers
* set_handlers
* push_handlers

It occurred to me that push_handlers could be implemented in terms
of get_handlers and set_handlers; and so could a merely hypothetical
unshift_handlers, which isn't there, and that could be the raison
d'être of get_handlers.

Maybe dynamic reconfiguration on a per-request basis as in this example
for a MyApache2::SendEmail handler [1] is what this is about.

Plus the same kind of thing for the whole server. Maybe you would
like to retire a certain handler at a given point in time, or on some
condition being met; you would then call set_handlers to install a new
handler and not have to do additional maintenance.

Any thoughts or comments you might have are welcome.
-- 
Michael Ludwig