Package org.appng.api.messaging

Interface EventHandler<E extends Event>

Type Parameters:

E - the type of the Event

public interface EventHandler<E extends Event>

An event-handler is responsible for handling events of a certain type.

Author:

, Matthias Müller

See Also:

EventRegistry, Receiver.setDefaultHandler(EventHandler), Receiver.registerHandler(EventHandler)

Method Summary

Modifier and Type	Method	Description
Class<E>	getEventClass()	Returns the type of the Event this handler reacts to
void	onEvent(E event, Environment environment, Site site)	Handles the given Event, usually by calling it's perform-method.

Method Detail

onEvent

void onEvent(E event,
             Environment environment,
             Site site)
      throws InvalidConfigurationException,
             BusinessException

Handles the given Event, usually by calling it's perform-method.

Parameters:

event - the Event to be handled

environment - the Environment to use

site - the Site where the Event occurred

Throws:

InvalidConfigurationException - if there's a configuration error

BusinessException - if an error occurs while performing the event

See Also:

Event.perform(Environment, Site)

getEventClass

Class<E> getEventClass()

Returns the type of the Event this handler reacts to

Returns:

the type of the Event this handler reacts to