As we mentioned earlier, Message queues are used when our JMS code uses the Point-To-Point (PTP) Messaging Domain. For the PTP Messaging Domain, there is usually one message producer and one message consumer. The message producer and the message consumer don't need to be running concurrently in order to communicate. The messages placed in the message queue by the message producer will stay in the message queue until the message consumer executes and requests the messages from the queue.
The following example illustrates how to add messages to a message queue:
package net.ensode.javaee8book.jmsptpproducer; import java.util.logging.Level; import java.util.logging.Logger; import javax.annotation.Resource; import javax.enterprise.context.RequestScoped; import javax.inject.Named; import javax.jms.ConnectionFactory; import javax.jms.JMSContext; import javax.jms.JMSProducer; import javax.jms.Queue; @Named @RequestScoped public class...