Publish/Subscribe Architecture

The broker side handles topic subscriptions, publications, and event delivery.

Current broker functionality includes:

• subscription routing in a single shared scope
• server-side topic listeners through @WampListener
• server-side publication through WampPublisher
• publisher identification and publisher exclusion
• subscriber include/exclude filtering
• pattern-based subscriptions
• event retention and event-history related support in the feature model
• subscription/session meta APIs and revocation support

Listener methods can subscribe to one or more topics and can opt into non-exact matching through the annotation match policy.