A connection factory allows you to create JMS connections and specify a set of configuration properties that define the connections. EAServer provides two types of connection factories, one to create queue connections and one to create topic connections. Queue connections allow you to send and receive messages using the PTP messaging model. Topic connections allow you to publish and receive messages using the Pub/Sub messaging model. EAServer provides two preconfigured connection factories that you can use javax.jms.QueueConnectionFactory and javax.jms.TopicConnectionFactory. To create connection factories, use EAServer Manager—see Chapter 8, “Setting up the Message Service,” in the EAServer System Administration Guide for details. Once you have created a connection factory, client applications must look up a ConnectionFactory object using JNDI, as in this example:
// Look up a queue connection factory QueueConnectionFactory queueCF = (QueueConnectionFactory) ctx.lookup(“MyTestQueueCF”); // Look up a topic connection factory TopicConnectionFactory topicCF = (TopicConnectionFactory) ctx.lookup(“MyTestTopicCF”);
If the connection factory cannot be found, EAServer throws a javax.naming.NamingException.
