Compound event expressions allow you to combine primitive events to form event scenarios. Event expressions provide a robust, precise notation for expressing complex patterns on event streams. Complex event expressions are not new; they have been the subject of research in database trigger languages since the 1990s and have been used since then in event engines in a variety of disciplines. (For a list of papers and other resources related to complex event expressions, see Appendix B, "Resources.") What See our Event Processing Resources page for more details. What is new is their application to real-time data streams on the Web.
| Child pages (Children Display) |
|---|