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TIBCO BusinessEvents® Enterprise Edition 6.3.1

# Virtual Rule Functions and Decision Tables

In TIBCO BusinessEvents WebStudio, business users add decision table resources to VRFs. The decision table provides the body to the VRF, also known as the VRF implementation.

In TIBCO BusinessEvents Studio, technical users add virtual rule functions (VRFs) to a TIBCO BusinessEvents project. A VRF has no body, similar to a Java interface. Its implementation is provided using decision tables authored in TIBCO BusinessEvents WebStudio. VRFs are used in the TIBCO BusinessEvents project like any other rule function; they can be called from rules or other rule functions.

For example:

    /**
     * @description
     */
    virtual void rulefunction Virtual_RF.Applicant_VirtualRuleFunction {
       attribute {
          validity = ACTION;
     }
       scope {
          Concepts.Applicant	applicant;
          Events.ApplicationReceived	applicationreceived;
       }
       body {
       }
    }

One VRF can have more than one decision table. If a VRF has more than one decision table, functions in TIBCO BusinessEvents determine how the tables are used.

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