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The penultimate chapters don’t dive into the core Event Processing technology but look at some uses cases and the combination of CEP with Oracle’s spatial extensions and database capabilities. My initial reaction was that these chapters are perhaps more niche than I’d want, but when I thought a little longer it occurred to me that a lot of CEP use cases would include make use of spatial. Intact a system development I lead some years ago, if built today could be built using these features.

The book focuses on the idea of notifying people about a public transport service, but think about the great many mobile services evolving for smart phones given their push notification capability now you can see how e spatial features could offer a lot of value.

The chapters like everything else in this book are very well written, and worth reading.

If anything the questions left in my mind, are more commercial dimensions of such a technology – enterprise Oracle database which contains a number of the special feature is not cheap, and I’d imagine that the spatial cartridge isn’t cheap. This leads me to a natural next question, given the common application scenarios like e one described, has anyone stood up a SaaS service using this technology, and how cost effective/competitive/attractive would it be?

As you can see a thought provoking book.