filter

The filter keyword defines an agenda filter.

Purpose

This keyword is used to define the filter of an agendafilter in a rule task.

Context

Rule task definitions

Syntax

ruletask ruleTaskName  
{ 
  agendafilter = filter (variableName) 
  { 
      action1 
      ... 
      actionn 
  }
};

Description

This format presents a way to define an agenda filter in the rule task. In this case, you write the code of the agenda filter within the task definition. Such code is similar to an IRL function with an IlrRuleInstance parameter and a Boolean return type. The (variableName) placeholder represents this IlrRuleInstance object. The inline code of the agenda filter can hold a reference to it. Ruleset variables are accessible from the agenda filter code. This agenda filter is applied to each instance of the rules that compose the task body. Only the instance for which the agenda filter returns true is executed. Others are not.