com.fluxtion.api.lifecycle

Interface EventHandler<T extends Event>

Type Parameters:

T - The type of Event processed by this handler

All Known Subinterfaces:

FilteredEventHandler<T>

All Known Implementing Classes:

AbstractFilteredEventHandler, DefaultFilteredEventHandler, Partitioner

public interface EventHandler<T extends Event>

processes all events of type T. An EventHandler is a node in a Simple Event Processor (SEP), that is the root for processing events in a SEP. Events can only be processed by a SEP if there is an EventHandler registered for that specific type of event.

Author:

Greg Higgins

See Also:

Event

Field Summary

Fields

Modifier and Type	Field and Description
static EventHandler	NULL_EVENTHANDLER

Method Summary

Modifier and Type	Method and Description
default void	afterEvent() called when all nodes that depend upon this EventHadler have successfully completed their processing.
default Class<? extends Event>	eventClass() The class of the Event processed by this handler
void	onEvent(T e) Called when a new event e is ready to be processed.

Field Detail

NULL_EVENTHANDLER

static final EventHandler NULL_EVENTHANDLER

Method Detail

onEvent

void onEvent(T e)

Called when a new event e is ready to be processed.

Parameters:

e - the Event to process.

afterEvent

default void afterEvent()

called when all nodes that depend upon this EventHadler have successfully completed their processing.

eventClass

default Class<? extends Event> eventClass()

The class of the Event processed by this handler

Returns:

Class of Event to process