The old ListenerManager is removed, new system in place. Removed
doesManageListeners(). (The new system isn't that new, but it's been
fixed and adapted to using RegistrationOrder.)
New
* Register all Bukkit events via the new EventRegistryBukkit.
* This way listeners can be ordered by numeric priority and tags
(regular expressions for beforeTag and afterTag).
* Unregistering listeners is possible (a listener node stays in the
Bukkit registry, but only one per event).
* It's possible to add listeners with minimal impact (MiniListener).
* The registry registers by event class 'hard' i.e., no relations
between already registered classes are checked.
* Order isn't necessarily stable nor even reproducible for randomized
start conditions with the same elements.
Point
* Compatibility hooks can easily place event listeners
before/after/between NCP default listeners, without resorting to tricks
like 'load-before'.
* Future registry of NCP itself: unregistering listeners is necessary
for runtime-removable checks, order is useful if not necessary, to be
able to add check listeners at any point of time.
Breaks:
* Anything relying on the previous (optional) managelisteners feature.
Missing:
* Lots of testing/inspection.
* Ensure all NCP listeners are coming with name/tag at least.
* Provide meaningful tags/RegistrationOrder for fine grained access
(e.g. after feature.moving but before feature.inventory).
* Change cncp to hard depend on NCP and use listener priorities.
* The annotations made for RegistrationOrder are defined in there.
* Add RegisterMethodWithOrder (method) for event handlers.
* Add RegisterEventsWithOrder (type) for default order with listeners.
Yes
* Remove the UNKNOWN type.
* All types except ALL have a parent now.
* All types have a type now.
* APIUtils: Add getDirectChildren for distinction.
No
* APIUtils doesn't collect the descendants in a generic way yet.
(+) Note: If it's fired asynchronously, meta data isn't checked, due to
that not being thread-safe. In future extra checks for (demanded to be)
thread-safe external plugin APIs can be added (reflection only).
(+) Add comments to PlayerData, concerning future treatment of name-uuid
mappings and retaining data.
This way testing changes to the core checks will be easier:
* By default NCPCompatNonFree is fetched from the repository (prevent
via -Dno_nonfree).
* To build "non free" modules, -P nonfree_build is needed. In addition
you need to specify the profiles for what to build, such as -P all an
the like.
