Summary

The keyword used to declare a function task. This keyword is used at the top level of the ruleset.

Syntax

functiontask functionTaskName  
{
    [property propertyName = value;] 
    [initialaction {action1 ... actionm}] 
    [finalaction {action1 ... actionn}] 
    [completionflag = value;] 
    body {ruleflow}
};

Description

A function task is one of the three kinds of tasks available in a ruleflow. A function task defines a ruleflow function.

Example

functiontask UpdateDistance
{
   body =
   {
      int x = move.x;
      int y = move.y;
      for (var i = y + 1; i < 10; i++)
      {
         int p = grid.position(x,i);
         if (p == null) break;
         p.distance--;
         update(p);
      }
   }
};

This example defines a function task whose body is the code given between the braced brackets. This code is executed when the task is called to be executed in a ruleflow.

If initial actions are provided, they are executed before the task body. If final actions are defined, they are executed after the task body.

See Also