Topics

Topics are another communication model that provide a publish/subscribe architecture pattern. This allows a message to be consumed by many subscribers, and each subscriber is able to process the message independently.

A Topic has similar characteristics to a Service Bus Queue. When you create a topic by code, you would normally use the NamespaceManager class, as follows:

//create the token
TokenProvider token = 
    TokenProvider.CreateSharedSecretTokenProvider(name, key);
//create the uri
Uri uri = ServiceBusEnvironment.CreateServiceUri("sb", "mynamespace", string.Empty);
//create a namespace instance
NamespaceManager nsManager = new NamespaceManager(uri, token);

You then use the NamespaceManager instance to create a Topic, just as you would when you create a Queue.

nsManager.CreateTopic("SalesTopicQueue");

Note

Note that you cannot use the same name for a Queue and Topic within the same namespace. This will cause a MessagingEntityAlreadyExists exception to be thrown.

Once the Topic has...