How to invoke only some methods in Entry are?

[Kairat]

Hello !

I've a few objects(duplicate) with same State Machine scenario.
In Entry area of X_STATE, I want that only some methods will be invoked.
Scenario :
One of SM (first listened) handles event from queue, goes to X_STATE, invoke all method and sends to all object event change state to X_STATE (even himself). Now every object must invoke only c(), d() method.

obj1.SM         obj2.SM          obj3.SM

X_STATE         X_STATE          X_STATE
Entry           Entry            Entry
{               {                {
a()//first inv.  a()//not         a()//not
b()//first inv.  b()//not         b()//not
c()//all inv.    c()//all inv.    c()//all inv.
d()//all inv.    d()//all inv.    d()//all inv.
}                }                }

How can I do it?

Thanks.

[Charles Rapp]

1. Entry actions are only invoked upon entering a state.
2. There is no way to invoke some Entry actions. All Entry actions are invoked.

The solution to this problem is to place actions a() and b() in a conditional transition and keep actions c() and d() in the X_STATE entry actions. Example:

W_STATE
{
    // First handler - execute a() and b().
    X_TRANSITION(event: QueueEvent)
      [event.firstHandler() == true]
        X_STATE
        {
            a();
            b();
        }

    // Not first handler - no actions.
    X_TRANSITION(event: QueueEvent)
        X_STATE
        {}
}

X_STATE
    Entry
    {
        c();
        d();
    }
{
    ...
}

Does this solution meet your needs?

Charles Rapp