Github user guoyuepeng commented on the issue:
https://github.com/apache/incubator-griffin/pull/444
>> > Can we provide several individually implements in configuration like
GriffinHook1, GriffionHook2, and autowired all individual hooks instances into
List?
>>
>> You can define all hooks in the context, but use only ones that
explicitly set in property
>>
>> > Do we really need that much hooks?
>>
>> We are deploying griffin with custom set of plugins bundled in jar, we
will probably define few custom hooks in that jar so that they will be
available in griffin context
> IC, users can provide their hooks in application context and griffin
somehow need to load and invoke those defined(by-properties) hooks.
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