Bukkit

Triggers

Note: page in progress, not yet complete

• BREAK (block break or mobdeath) - this is the default trigger, it doesn't need to be specified
• LEFTCLICK or RIGHTCLICK (left or rightclick on a block or air)
• LEAF_DECAY (triggered when leaves decay naturally)

Following triggers are in the 2.8 beta only:

• HIT (hitting an entity)
• MOBSPAWN (will run the drop-section if this mob spawns).
• PROJECTILE_HIT_BLOCK
• BLOCK_GROW
• FISH_CAUGHT
• FISH_FAILED

• ITEM_CONSUME (eating, drinking)
• POWER_UP/POWER_DOWN (for redstone powering blocks)
• PLAYER_JOIN
• PLAYER_RESPAWN

Performance

Please note that the related Bukkit event listeners are not registered unless you add a specific entry using the particular trigger. Basically this means if you don't configure anything then the only code that runs will be the startup code reading the config file; if you only add custom drops for block then just the blockbreak event will be listened to; etc.