Section 7.7. Core JMS API

7.7. Core JMS API

The JMS API resides in the javax.jms package. These are the most important classes and interfaces for our purposes:


Holds business data and routing information. Although you'll find several types of Messages, most of the time you'll use either a TextMessage (that contains textual data in its body) or an ObjectMessage (that holds serializable objects in its body).


Holds messages sent by the Producer to be received by the Consumer(s). A Destination is either a Queue or a Topic that the JMS Server manages on behalf of its clients.


Enables a JMS client to send or receive Messages. Use a Connection to create one or more Sessions.


A ConnectionFactory is either a QueueConnectionFactory or it is a TopicConnectionFactory, depending on the messaging model, and it exists to create Connections.


A Session creates Producers, Consumers, and Messages. A Publish-Subscribe application uses a TopicSession, and a Point-to-Point application uses a QueueSession. Sessions are single-threaded.

JBoss at Work. A Practical Guide
JBoss at Work: A Practical Guide
ISBN: 0596007345
EAN: 2147483647
Year: 2004
Pages: 197

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