Request-reply messaging through a WebSphere MQ link

When a JMS producer sends a message, it can provide a reply-to destination. The reply-to destination is a JMS destination defined using the producer's messaging provider. This style of messaging is known as request-reply, or request and response. Request-reply messages can be exchanged across the WebSphere® MQ link as either point-to-point or publish/subscribe messages.

The following combinations are possible for request-reply exchanges:
  1. Publication messages (for publish/subscribe messaging).
    1. Queue type reply-to destination.
    2. Topic type reply-to destination. This can be a permanent reply-to topic, which is defined to the publish/subscribe bridge on the WebSphere MQ link, or a temporary topic reply, where the topic name is assigned at runtime.
  2. Point-to-point messages.
    1. Queue type reply-to destination.
    2. Topic type reply-to destination. The reply-to destination must be a permanent reply-to topic; you cannot have a temporary topic reply for a point-to-point request message.
When the producer is a WebSphere Application Server application that uses the default messaging provider, the reply-to destination is a service integration JMS destination that typically either points to a service integration queue, or comprises a topic string and a service integration topic space.
When the producer is a WebSphere MQ JMS application, the reply-to destination is a WebSphere MQ JMS destination that typically either points to a WebSphere MQ queue or is a topic string.
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Last updated: Oct 21, 2010 5:30:17 AM CDT
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