Package org.bukkit.event

Class Event

java.lang.Object

org.bukkit.event.Event

Direct Known Subclasses:

AsyncPlayerPreLoginEvent, AsyncTabCompleteEvent, BlockEvent, EntityEvent, FillProfileEvent, GS4QueryEvent, HangingEvent, InventoryEvent, InventoryMoveItemEvent, InventoryPickupItemEvent, LookupProfileEvent, PlayerConnectionCloseEvent, PlayerEvent, PlayerHandshakeEvent, PlayerLeashEntityEvent, PlayerPreLoginEvent, PreCreatureSpawnEvent, PreFillProfileEvent, PreLookupProfileEvent, ProfileWhitelistVerifyEvent, ServerEvent, ServerExceptionEvent, ServerTickEndEvent, ServerTickStartEvent, TabCompleteEvent, ThrownEggHatchEvent, UnknownCommandEvent, VehicleEvent, WeatherEvent, WhitelistToggleEvent, WorldEvent

public abstract class Event
extends Object

Represents an event. All events require a static method named getHandlerList() which returns the same HandlerList as getHandlers().

See Also:

PluginManager.callEvent(Event), PluginManager.registerEvents(Listener,Plugin)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Event.Result

Constructor Summary

Constructors

Constructor	Description
Event()	The default constructor is defined for cleaner code.
Event(boolean isAsync)	This constructor is used to explicitly declare an event as synchronous or asynchronous.

Method Summary

Modifier and Type	Method	Description
boolean	callEvent()	Calls the event and tests if cancelled.
@NotNull String	getEventName()	Convenience method for providing a user-friendly identifier.
abstract @NotNull HandlerList	getHandlers()
boolean	isAsynchronous()	Any custom event that should not by synchronized with other events must use the specific constructor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Event

public Event()

The default constructor is defined for cleaner code. This constructor assumes the event is synchronous.

Event

public Event(boolean isAsync)

This constructor is used to explicitly declare an event as synchronous or asynchronous.

Parameters:

isAsync - true indicates the event will fire asynchronously, false by default from default constructor

Method Detail

callEvent

public boolean callEvent()

Calls the event and tests if cancelled.

Returns:

false if event was cancelled, if cancellable. otherwise true.

getEventName

@NotNull
public @NotNull String getEventName()

Convenience method for providing a user-friendly identifier. By default, it is the event's class's simple name.

Returns:

name of this event

getHandlers

@NotNull
public abstract @NotNull HandlerList getHandlers()

isAsynchronous

public final boolean isAsynchronous()

Any custom event that should not by synchronized with other events must use the specific constructor. These are the caveats of using an asynchronous event:

• The event is never fired from inside code triggered by a synchronous event. Attempting to do so results in an IllegalStateException.
• However, asynchronous event handlers may fire synchronous or asynchronous events
• The event may be fired multiple times simultaneously and in any order.
• Any newly registered or unregistered handler is ignored after an event starts execution.
• The handlers for this event may block for any length of time.
• Some implementations may selectively declare a specific event use as asynchronous. This behavior should be clearly defined.
• Asynchronous calls are not calculated in the plugin timing system.

Returns:

false by default, true if the event fires asynchronously