InterSystems Programming Tools Index
Publish and Subscribe
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(Ensemble) Route messages to subscribers based on their expressed interests.
Background Information
Publish and subscribe refers to a technique where a message is sent to one or more subscribers based on their interest in a specific topic. Typically a topic is inferred from the contents of the message.
Available Tools
EnsLib.PubSub package
Provides a mechanism to quickly find the set of interested subscribers for a given topic. Your application-specific business process must both invoke the PubSub routing engine and also dispatch messages to subscribers as part of a business process (this is in order to make the actual processing of messages as flexible as possible).
See Defining Publish and Subscribe Message Routing in Managing Ensemble.
Availability: All Ensemble-enabled namespaces.