org.hibernate.event.service.spi
Interface EventListenerGroup<T>

All Superinterfaces:

Serializable

All Known Implementing Classes:

EventListenerGroupImpl

public interface EventListenerGroup<T>
extends Serializable

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

Method Summary

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()