org.apache.openjpa.lib.util
Interface EventManager

All Known Implementing Classes:

AbstractConcurrentEventManager, AbstractDataCache, AbstractQueryCache, BrokerFactoryEventManager, ConcurrentDataCache, ConcurrentQueryCache, JDBCEventConnectionDecorator, PartitionedDataCache, RemoteCommitEventManager, TransactionEventManager

public interface EventManager

Basic event manager interface.

Author:

Abe White

Method Summary

void	addListener(Object listener) Add an event listener.
Exception[]	fireEvent(Object event) Fire the given event to all listeners, returning any exceptions.
Collection	getListeners() Return a read-only list of listeners.
boolean	hasListener(Object listener) Return whether the given instance is in the list of listeners.
boolean	hasListeners() Return true if there are any registered listeners.
boolean	removeListener(Object listener) Remove an event listener.

Method Detail

addListener

void addListener(Object listener)

Add an event listener.

removeListener

boolean removeListener(Object listener)

Remove an event listener.

hasListener

boolean hasListener(Object listener)

Return whether the given instance is in the list of listeners.

hasListeners

boolean hasListeners()

Return true if there are any registered listeners.

getListeners

Collection getListeners()

Return a read-only list of listeners.

fireEvent

Exception[] fireEvent(Object event)

Fire the given event to all listeners, returning any exceptions.