The building blocks of JMS

The basic building blocks of any JMS application consist of the following:

• Administered objects—connection factories and destinations

• Connections

• Sessions

• Message producers

• Message consumers

• Messages

Let's take a closer look at them:

• Connection factory: This object encapsulates a set of connection configuration parameters that have been defined by an administrator. A client uses it to create a connection with a JMS provider. A connection factory hides provider-specific details from JMS clients and abstracts administrative information into objects in the Java programming language.

• Destination: This is the component a client uses to specify the target of messages it produces and the source of messages it consumes. In the point-to-point (PTP) messaging domain, destinations are called queues; in the publish/subscribe (pub/sub) messaging domain, destinations are called topics.

• Connection: This encapsulates a virtual connection with a JMS provider. A connection could represent...