org.apache.cocoon.portal.event.impl
Class DefaultEventManager

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.cocoon.portal.event.impl.DefaultEventManager

All Implemented Interfaces:

Disposable, Initializable, Component, Configurable, Contextualizable, LogEnabled, Serviceable, ThreadSafe, EventManager, Publisher, Register

public class DefaultEventManager
extends AbstractLogEnabled
implements EventManager, Serviceable, Initializable, ThreadSafe, Configurable, Disposable, Contextualizable, Publisher, Register

This is the default implementation of the event manager.

Version:

CVS $Id: DefaultEventManager.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Carsten Ziegeler, Volker Schmitt

Nested Class Summary

protected static class

DefaultEventManager.MethodInfo

Field Summary

protected ServiceSelector	aspectSelector
protected EventAspectChain	chain
protected Context	context
protected Map	receiverClasses Introspected receiver classes
protected PortalService	service The portal service

Fields inherited from interface org.apache.cocoon.portal.event.EventManager

ROLE

Constructor Summary

DefaultEventManager()

Method Summary

void	configure(Configuration conf)
void	contextualize(Context context)
void	dispose()
protected Map	getObjectModel() Helper method to get the current object model
Publisher	getPublisher() Returns the Publisher with which events can be published.
Register	getRegister() Returns the Register with which subscribers can subscribe and unsubscribe interest to given Events.
void	initialize()
protected List	introspect(Class receiverClass)
void	processEvents() Process the events
void	publish(Event event) Publishes an event for subscribers to be informed of.
void	send(Event event) Publish an event.
void	service(ServiceManager manager)
void	subscribe(Receiver receiver) Subscribes a receiver for a specific type of event.
void	subscribe(Subscriber subscriber) Subscribes a Subscriber to the EventManager.
void	unsubscribe(Receiver receiver) Unsubscribes a receiver for all events.
void	unsubscribe(Subscriber subscriber) Unsubscribes an Subscriber from the EventManager.

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

chain

protected EventAspectChain chain

aspectSelector

protected ServiceSelector aspectSelector

context

protected Context context

service

protected PortalService service

The portal service

receiverClasses

protected Map receiverClasses

Introspected receiver classes

Constructor Detail

DefaultEventManager

public DefaultEventManager()

Method Detail

service

public void service(ServiceManager manager)
             throws ServiceException

Specified by:

service in interface Serviceable

Throws:

ServiceException

See Also:

Serviceable.service(org.apache.avalon.framework.service.ServiceManager)

getPublisher

public Publisher getPublisher()

Description copied from interface: EventManager

Returns the Publisher with which events can be published.

Specified by:

getPublisher in interface EventManager

getRegister

public Register getRegister()

Description copied from interface: EventManager

Returns the Register with which subscribers can subscribe and unsubscribe interest to given Events.

Specified by:

getRegister in interface EventManager

getObjectModel

protected Map getObjectModel()

Helper method to get the current object model

configure

public void configure(Configuration conf)
               throws ConfigurationException

Specified by:

configure in interface Configurable

Throws:

ConfigurationException

dispose

public void dispose()

Specified by:

dispose in interface Disposable

initialize

public void initialize()
                throws Exception

Specified by:

initialize in interface Initializable

Throws:

Exception

publish

public void publish(Event event)

Description copied from interface: Publisher

Publishes an event for subscribers to be informed of.

Specified by:

publish in interface Publisher

Parameters:

event - the Event being published

subscribe

public void subscribe(Subscriber subscriber)

Description copied from interface: Register

Subscribes a Subscriber to the EventManager. The Subscriber abstracts all the information needed for the subscription.

Specified by:

subscribe in interface Register

Parameters:

subscriber - the Subscriber

See Also:

Subscriber

unsubscribe

public void unsubscribe(Subscriber subscriber)

Description copied from interface: Register

Unsubscribes an Subscriber from the EventManager.

Specified by:

unsubscribe in interface Register

Parameters:

subscriber - the Subscriber

See Also:

Subscriber

processEvents

public void processEvents()
                   throws ProcessingException

Description copied from interface: EventManager

Process the events

Specified by:

processEvents in interface EventManager

Throws:

ProcessingException

contextualize

public void contextualize(Context context)
                   throws ContextException

Specified by:

contextualize in interface Contextualizable

Throws:

ContextException

See Also:

Contextualizable.contextualize(org.apache.avalon.framework.context.Context)

send

public void send(Event event)

Description copied from interface: EventManager

Publish an event. All registered receivers get notified.

Specified by:

send in interface EventManager

Parameters:

event - The event to broadcast.

See Also:

EventManager.send(org.apache.cocoon.portal.event.Event)

introspect

protected List introspect(Class receiverClass)

subscribe

public void subscribe(Receiver receiver)

Description copied from interface: EventManager

Subscribes a receiver for a specific type of event.

Specified by:

subscribe in interface EventManager

See Also:

EventManager.subscribe(org.apache.cocoon.portal.event.Receiver)

unsubscribe

public void unsubscribe(Receiver receiver)

Description copied from interface: EventManager

Unsubscribes a receiver for all events.

Specified by:

unsubscribe in interface EventManager

See Also:

EventManager.unsubscribe(org.apache.cocoon.portal.event.Receiver)