Book Image

Getting Started with Oracle Event Processing 11g

Book Image

Getting Started with Oracle Event Processing 11g

Overview of this book

Events are everywhere, events which can have positive or negative impacts on our lives and important business decisions. These events can impact a company's success, failure, and profitability. Technology now allows people from all walks of life to create Event Driven applications that will immediately and completely respond to the events that affect you and your business. So you are much more responsive to your customers, and competitive threats, and can take advantage of transient time sensitive situations. "Getting Started with Oracle Event Processing" will let you benefit from the skills and years of experience from the original pioneers who were the driving force behind this immensely flexible, complete, and award winning Event Stream Processing technology. It provides all of the information needed to rapidly deliver and understand Event Driven Architecture (EDA) Applications. These can then be executed on the comprehensive and powerful integral Java Event Server platform which utilizes the hardware and operating system.After an introduction into the benefits and uses of Event Stream Processing, this book uses tutorials and practical examples to teach you how to create valuable and rewarding Event Driven foundational applications. First you will learn how to solve Event Stream Processing problems, followed by the fundamentals of building an Oracle Event processing application in a step by step fashion. Exciting and unique topics are then covered: application construction, the powerful capabilities of the Oracle Event Processing language, CQL, monitoring and managing these applications, and the fascinating domain of real-time Geospatial Movement Analysis. Getting Started with Oracle Event Processing will provide a unique perspective on product creation, evolution and a solid understanding on how to effectively use the product.
Table of Contents (19 chapters)
Getting Started with Oracle Event Processing 11g
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Setting up caching systems


A cache is an in-memory storage area. In OEP, a cache is often used to store events. While it is not strictly necessary to use a cache in your application, it can significantly improve performance over retrieving data from the database.

In Chapter 4, Assembling and Configuring OEP Applications, we briefly looked at how to set up a caching system. Now we'll cover that in a little more detail.

A caching system is a configured instance of a caching implementation. A caching system includes the configuration information needed to connect to one or more named caches defined in the caching system. Setting up Coherence requires specific configuration files which must also be made available to the OEP JVM, just as they would need to be part of the configuration of any Coherence JVM that is part of the cluster. This is a rich topic which you should learn more about if you plan to implement caching within OEP. A good place to start to experiment with the different configurations...