Glossary

Both the JMS- and MQ-related terms defined here are used throughout this document.

broker

A WebSphere MQ process that performs subscription resolution in a pub/sub model.

channel

A WebSphere MQ object that is a logical communication link.

durable subscription

A TIBCO JMS subscription that retains messages while the client is not connected.

JMS

TIBCO Java Message Service.

messaging client

A TIBCO JMS program that produces or consumes messages.

MOM

TIBCO JMS message-oriented middleware.

MQ

WebSphere MQ Message Queue messaging system.

MQ publish/subscribe

WebSphere MQ publish-and-subscribe function.

MQI

WebSphere MQ Message Queue Interface programming API.

MQM

WebSphere MQ Message queue manager process that manages a queue.

nondurable subscription

A TIBCO JMS subscription that retains messages only while the client is connected.

queue

In TIBCO JMS, a domain for point-to-point messaging.

In WebSphere MQ, an object that stores sent messages.

payload

A WebSphere MQ message body.

publication

In WebSphere MQ, the information that is sent by a publisher.

publisher

In WebSphere MQ, the sender in a publish/subscribe model.

RF header

The WebSphere MQ rules and formatting header used by MQ pub/sub. All messages sent to the MQ pub/sub broker or to the stream queue must have an RF header. The RF header conveys control information to the MQ pub/sub broker. In MQ pub/sub messages, the message payload contains a RF header, followed by the application data.

RFH

The WebSphere MQ rules and formatting header; the portion of the message header that provides rules and formatting information for that message

service provider

A TIBCO JMS message provider. For instance, TIBCO JMS is a service provider, called a messaging provider in this document.

stream

In WebSphere MQ, the grouping of related MQ topics.

subscriber

In WebSphere MQ, the receiver in a publish/subscribe topology.

subscription

A TIBCO JMS domain for publishing or consuming one-to-many messaging.

topic

In TIBCO JMS, similar to queues in, but used for one-to-many messaging.

In WebSphere MQ, the subject of a publication. WebSphere MQ pub/sub topics and JMS topics are different. In JMS, a topic is a pub/sub endpoint, whereas in WebSphere MQ pub/sub, a topic is a subject of a message.

WebSphere MQ pub/sub topics and JMS topics are different. In JMS, a topic is a pub/sub endpoint, whereas in WebSphere MQ pub/sub, a topic is a subject of a message.