One-to-One Communication

One-to-one communication lets a publisher send a message to a specific inbox subscriber which is a kind of subscriber endpoint instance. Only that inbox subscriber receives the message, even when other subscribers share the transport.

In the following diagram, the two subscribers have inboxes subscribers within each program. PublisherA sends the same message stream over transport T1 to Subscriber1 and Subscriber2. PublisherA also sends a one-to-one message to Subscriber1's Inbox using the same T1 transport. Only Subscriber1 receives the message.

Figure 16: One-to-One Communication, Sending to an Inbox

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