org.modeshape.jcr.bus
Interface ChangeBus

All Superinterfaces:

ChangeSetListener, Observable

All Known Implementing Classes:

ClusteredRepositoryChangeBus, RepositoryChangeBus

public interface ChangeBus
extends ChangeSetListener, Observable

A generic interface for an event bus which handles changes.

Method Summary

boolean	hasObservers() Checks if there are any observers registered with the bus.
void	shutdown() Shuts down the change bus, closing and clearing resources created during start()
void	start() Starts up the change bus.

Methods inherited from interface org.modeshape.jcr.cache.change.ChangeSetListener

notify

Methods inherited from interface org.modeshape.jcr.cache.change.Observable

register, unregister

Method Detail

start

void start()
           throws Exception

Starts up the change bus.

Throws:

Exception - if anything unexpected fails during startup.

shutdown

void shutdown()

Shuts down the change bus, closing and clearing resources created during start()

hasObservers

boolean hasObservers()

Checks if there are any observers registered with the bus.

Returns:

true if there are any registered observers, false otherwise