Link to entitylivingattacked
The EntityLivingAttacked Event is fired whenever an entity is being attacked.
It can be canceled to stop the entity from taking damage.
Link to event-class
You will need to cast the event in the function header as this class:
You can, of course, also import the class before and use that name then.
Event interface extensions
Link to event-interface-extensions
PlayerDeathDrops Events implement the following interfaces and are able to call all of their methods/getters/setters as well:
Link to zengetters