---

EventChannel Interface Reference

Inheritance diagram for EventChannel:

[legend]Collaboration diagram for EventChannel:

[legend]List of all members.

Public Methods
void	addConsumer (Object consumer) throws JonathanException
void	removeConsumer (Object consumer) throws JonathanException
Object	getConsumerProxy () throws JonathanException

---

Detailed Description

An EventChannel is a service that decouples the communication of events between suppliers and consumers of events. It is an intervening object that allows multiple suppliers to communicate with multiple suppliers asynchronously. The event channel itself is both a supplier and consumer of events. This service only offers a push model of communication for both consumers and suppliers of events. Particular implementations of this service will provide specific guarantees in terms of reliability, ordering (and possibly timeliness) of the event communication.

Definition at line 45 of file EventChannel.java.

---

Member Function Documentation

void EventChannel::addConsumer ( Object consumer )

Add a new consumer to the event channel. The consumer object should be of type compatible with that of the event channel Parameters: consumer   the consumer object to add Exceptions: JonathanException   thrown if the consumer object cannot be added Reimplemented in EventChannelImpl. Referenced by NewsConsumer::main().

Object EventChannel::getConsumerProxy ( )

Returns a consumer proxy object which can be used by producer to supply events to the channel Returns: a consumer proxy for the EventChannel Exceptions: JonathanException   thrown if the operation fails Reimplemented in EventChannelImpl.

void EventChannel::removeConsumer ( Object consumer )

Remove an existing consumer object from the event channel. The consumer object specified will no longer receive events from the event channel Parameters: consumer   the consumer object to remove Exceptions: JonathanException   thrown of the specified consumer object cannot be removed Reimplemented in EventChannelImpl.

---

The documentation for this interface was generated from the following file:

• EventChannel.java

---