Java Message Service (JMS)

Part of Java EE, the Java Message Service application program interface, defines a standard programmatic interface from Java programs to standard middleware message facilities. Often the JMS provider receiving the message acts as a broker or router, delivering messages of different types from one Java application to another.

• Using Connect JMS rules (Rule-Connect-JMS rule type), a PRPC application, as a client, can act as a JMS producer (by sending a request message to an external system) and JMS consumer (by accepting a response).
• Using Service JMS rules (Rule-Service-JMS), a PRPC application can deliver services to an external system through JMS facilities.

PRPC supports both point-to-point JMS communications and publish/subscribe operations. The latter type usually operate asynchronously, with no response or acknowledgment returned to the consumer client system.

When PRPC is deployed as an enterprise application in a Java EE application server, JMS facilities work with message driven beans.

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