Event processing apps collect, analyze, and react to events as they occur. They recognize event patterns-from the obvious to the complex, even predicting outcomes such as power shortages or customer dissatisfaction - and respond to them accordingly. In some applications, such as financial trading, fast reaction times are a must. Event Processing in Action is a ground-breaking book that shows you how to use, design, and build event processing applications. It follows a detailed example to present the concepts and show you the how-tos of both architecture and implementation.