org.hibernate.event.service.spi

Interface EventListenerGroup<T>

All Superinterfaces:

Serializable

public interface EventListenerGroup<T>
extends Serializable

Contract for a groups of events listeners for a particular event type.

Method Summary

Modifier and Type	Method and Description
void	addDuplicationStrategy(DuplicationStrategy strategy) Mechanism to more finely control the notion of duplicates.
void	appendListener(T listener)
void	appendListeners(T... listeners)
void	clear()
int	count()
EventType<T>	getEventType() Retrieve the event type associated with this groups of listeners.
boolean	isEmpty() Are there no listeners registered?
Iterable<T>	listeners()
void	prependListener(T listener)
void	prependListeners(T... listeners)

Method Detail

getEventType

EventType<T> getEventType()

Retrieve the event type associated with this groups of listeners.

Returns:

The event type.

isEmpty

boolean isEmpty()

Are there no listeners registered?

Returns:

true if no listeners are registered; false otherwise.

count

int count()

listeners

Iterable<T> listeners()

addDuplicationStrategy

void addDuplicationStrategy(DuplicationStrategy strategy)

Mechanism to more finely control the notion of duplicates.

For example, say you are registering listeners for an extension library. This extension library could define a "marker interface" which indicates listeners related to it and register a strategy that checks against that marker interface.

Parameters:

strategy - The duplication strategy

appendListener

void appendListener(T listener)

appendListeners

void appendListeners(T... listeners)

prependListener

void prependListener(T listener)

prependListeners

void prependListeners(T... listeners)

clear

void clear()