Difference between revisions of "VIATRA2/Live Transformations/TriggerASM"

machine HelloTriggerWorld
{
  // Beware, this is a global variable, which _holds_ it's value throughout the triggers lifecycle.
  asmfunction testFruit / 1
  {
    ("fruit") = "apple"; // Startup value of the variable
  }
 
  @Trigger(priority='100', mode='always', sensitivity='rise', startup='passive', execution='iterate')
  gtrule testTrigger(inout E) =
  {
    // This pattern triggers the action sequence.
    precondition pattern lhs(E)=
    {
      entity(E);
    }
 
    // The action sequence.
    action
    {
      println( "Trigger Action triggered by: " + E );
      println( "Trigger AsmTest: " + testFruit("fruit") );
      update testFruit("fruit") = "orange";
    }
  } 
 
  //Main rule, the startTrigger() method invokes the engine.
  rule main() =
    seq
    {
      println ( "VTCL AsmTest: " + testFruit("fruit") );
      println ( startTrigger("testTrigger") );
    }
}