On 1/23/11 4:01 PM, Johannes wrote:
Right now, the kernel listeners are always instanciated and passed to
the event dispatcher which then calls a ->register() method on them to
let them register themself. This way all kernel listeners are always
instanciated even if their respective events never get called.
We could change the behavior in that we introduce a new tag which
contains already the event the listener wants to register for, it's
priority, and the method on the service instance that is supposed to
be called, e.g.
<tag name="kernel.event_listener" event="core.request" priority="0"
method="handle" />
<tag name="kernel.event_listener" event="core.response" priority="12"
method="alterResponse" />
That would make the event dispatcher more lightweight and would allow
it to lazy-load only those listeners which it actually needs.
I have committed my implementation:
https://github.com/fabpot/symfony/commit/1c11d816119814f17b30cb5b717a5bd9d3631356
Fabien
Kind regards,
Johannes
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