[TYPO3-core] Signals vs. Hooks
kraftb at kraftb.at
Sun Aug 24 15:20:02 CEST 2014
Just wanted to know what the current status of using/creating new hooks
is. I know there are signals and I like the concept and how they got
implemented. If one can simply inject a SignalSlotDispatcher they are
really easy to use.
But sadly there purpose is mainly to inform about some event occured and
let other pieces of code handle those events. But they are marely not
designed to return results. Altough the current implementation allows
this it is not very comfortable.
Indeed, the GoF rather propose the "Template method" pattern for this
purpose instead of the observer (signal) pattern:
There are currently some hooks which require the hook-class to implement
some interface which tends to already move into this direction. I think
what is now missing are some API methods for extension developers to
register a hook/template method and API methods for the core (or other
locations where hooks/template methods get called) to ease the call of a
hook: It is cumbersome to always implement a loop iterating over all
Additional ideas, proposals, suggestions?
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