Working with message topics

Message topics are used when our Jakarta Messaging code uses the pub/sub messaging domain. When using this messaging domain, the same message can be sent to all subscribers to the topic.

Sending messages to a message topic

The following example illustrates how to send messages to a message topic:

package com.ensode.jakartaeebook.pubsubproducer;
//imports omitted
@JMSDestinationDefinition(
    name = "java:global/topic/JakartaEEBookTopic",
    interfaceName = "jakarta.jms.Topic"
)
@Named
@RequestScoped
public class MessageSender {
  @Resource
  private ConnectionFactory connectionFactory;
  @Resource(mappedName =
    "java:global/topic/JakartaEEBookTopic")
  private Topic topic;
  public void produceMessages() {
    JMSContext jmsContext =
      connectionFactory...