Just-in-time publishing system and program product for a publish/subscribe messaging system using a subscribe-event model

摘要

A system, and program product having at least one subscriber subscribing to topics from one or more data sources. The data sources available and the number of subscriptions for each data source are registered in a table in real time. Upon detecting either subscription activity by the subscribers or availability of data on a data source, a matching routine compares the subscriptions registered for the available data source and enables the sending of messages from the available data source to subscriber/s.