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Getting Started with Oracle Event Processing 11g by Lloyd Williams, Robin J. Smith, Alexandre Alves

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Chapter 8. Pattern Matching with CQL

In Chapter 5, Coding with CQL, you learned the basics of event processing languages with CQL and how it relates with SQL. In this chapter, you will learn advanced event processing features such as pattern matching, and further learn how to intermingle CQL with Java and XML.

Specifically, you will learn how to:

  • Extend CQL with OEP cartridges
  • Blend CQL with the Java programming language
  • Process XML documents with CQL
  • Perform pattern matching on events

Extending CQL with OEP cartridges

As we have learned, CQL is a very powerful, declarative language for processing events; however sometimes you may need to do simple programming tasks such as string manipulation, and for those cases you may find that CQL is just too high-level. ...

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