See: Description
| Interface | Description | 
|---|---|
| SubscriptionRegistry | 
 A registry of subscription by session that allows looking up subscriptions. 
 | 
| Class | Description | 
|---|---|
| AbstractBrokerMessageHandler | 
 Abstract base class for a  
MessageHandler that broker messages to
 registered subscribers. | 
| AbstractSubscriptionRegistry | 
 Abstract base class for implementations of  
SubscriptionRegistry that
 looks up information in messages but delegates to abstract methods for the
 actual storage and retrieval. | 
| BrokerAvailabilityEvent | 
 Event raised when a broker's availabilty changes 
 | 
| DefaultSubscriptionRegistry | 
 Implementation of  
SubscriptionRegistry that stores subscriptions
 in memory and uses a PathMatcher
 for matching destinations. | 
| SimpleBrokerMessageHandler | 
 A "simple" message broker that recognizes the message types defined in
  
SimpMessageType, keeps track of subscriptions with the help of a
 SubscriptionRegistry and sends messages to subscribers. |