com.hp.util.event

Class DefaultEventSinkBroker

java.lang.Object

com.hp.util.event.DefaultEventSinkBroker

All Implemented Interfaces:

EventSinkBroker

public class DefaultEventSinkBroker
extends Object
implements EventSinkBroker

Base implementation of EventSinkBroker.

Author:

Thomas Vachuska, Simon Hunt, Steve Britt

Constructor Summary

Constructors

Constructor and Description
DefaultEventSinkBroker()

Method Summary

Modifier and Type	Method and Description
void	addSink(Class<? extends Event> eventClass, EventSink sink) Adds a new event sink associated with the specified event class.
EventSink	get(Class<? extends Event> eventClass) Get the event sink associated with the given event class.
protected EventSink	get(Class<? extends Event> eventClass, boolean cacheInferredSink) Get the EventSink corresponding to the supplied Event class.
void	removeSink(Class<? extends Event> eventClass) Removes a previously added event sink.
protected Map<Class<? extends Event>,EventSink>	sinks() Get the Map of registered Event classes to their corresponding EventSinks.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultEventSinkBroker

public DefaultEventSinkBroker()

Method Detail

addSink

public void addSink(Class<? extends Event> eventClass,
                    EventSink sink)

Description copied from interface: EventSinkBroker

Adds a new event sink associated with the specified event class.

Specified by:

addSink in interface EventSinkBroker

Parameters:

eventClass - class of events handled by the sink

sink - event sink

get

public EventSink get(Class<? extends Event> eventClass)

Description copied from interface: EventSinkBroker

Get the event sink associated with the given event class.

Specified by:

get in interface EventSinkBroker

Parameters:

eventClass - class of events

Returns:

event sink; null if no sink has been registered for the class

get

protected EventSink get(Class<? extends Event> eventClass,
                        boolean cacheInferredSink)

Get the EventSink corresponding to the supplied Event class. If no such direct mapping exists then the Event class supplied will be examined to determine whether any of its interfaces or super-interfaces have a direct mapping to an EventSink; if such a mapping is found then the resulting EventSink will be returned. In such a case if the supplied boolean is true then a direct mapping is added to cache the inferred relationship between the supplied Event class and the resulting EventSink, but if the boolean is false no such cache entry is added.

Parameters:

eventClass - Event class

cacheInferredSink - boolean that indicates any inferred mapping between the supplied Event class and a corresponding EventSink class should be cached when true

Returns:

corresponding EventSink class if one exists, null otherwise

removeSink

public void removeSink(Class<? extends Event> eventClass)

Description copied from interface: EventSinkBroker

Removes a previously added event sink.

Specified by:

removeSink in interface EventSinkBroker

Parameters:

eventClass - class of events handled by the sink

sinks

protected Map<Class<? extends Event>,EventSink> sinks()

Get the Map of registered Event classes to their corresponding EventSinks.

Returns:

Map of Events to EventSinks