For those who have not come across it, InfoBus provides a mechanism by which Java components in the same JVM can communicate data in a loosely coupled way.
Components are either data producers, or consumers or both.
Whatever the merits of InfoBus, this book is not the place to learn about it. The author cannot write clear, concise English, not his fault perhaps but the publishers are definitely remiss in not employing a competent editor. There are some elementary coding errors in his examples, which I found in a cursory perusal. Decidedly not recommended. Last Update - 11 September 2001.