Chapter 18 Functions This chapter explains how to work with functions in TIBCO BusinessEvents. Topics • Overview of Catalog Functions • Function Tooltips and Decorations • Temporal Functions and Their Parameters • Virtual Rule Functions and VRF Catalog Functions • Cache Related Functions • Indexing for More Efficient Cache Queries • Oracle Coherence Cache Query Functions • Adding Custom Functions • Restrictions on Use of Custom Functions • Example Custom Function with Tooltips • Structure of a Function Catalog