Overview
Nirvana provides publish subscribe functionality through
the use of channel objects. Channels are the logical
rendezvous point for publishers (producers) and subscribers
(consumers) or data (events).
Nirvana Channels are essentially Topics if you are
using the Nirvana JMS implementation.
Publish / Subscribe using channels differs from message
queues in the way that events are delivered to consumers.
Under the publish / subscribe paradigm, each event is
delivered to each subscriber once and only once per
subscription, and is not removed from the channel after
being consumed.
This section demonstrates how Nirvana pub / sub works,
and provides example code snippets for all relevant
concepts.
Creating a channel
Finding a channel
Nirvana events
Nirvana
event dictionaries
Publishing events to a channel
Asynchronous channel
consumer
Synchronous channel
consumer (Channel Iterator)
Durable Consumers
and named objects
Channel Joins
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