Can a Strategy dispose a (no longer required) Indicator?

[Shansen]

Can a Strategy dispose (i.e. destroy) a (no longer required) Indicator?
As pseudocode, in a Strategy where the Indicator is referenced (NT8 - Performance practices | Referencing indicator methods) :

private SMA mySma;

protected override void OnStateChange()
{
  if (State == State.Historical)
  {
    mySma = SMA(20);
  }
}

protected override void OnBarUpdate()
{
  if(conditionToRemove)
  {
    mySma.Dispose();
  }
}

I am attempting to structure code to calculate the number of bars in a session based upon the NT post - Number of bars per session #2 by NinjaTrader_ZacharyG (https://ninjatrader.com/support/forum/forum/ninjatrader-7/platform-technical-support/82016-number-of-bars-per-session?p=708974#post708974). Once theinteger is calculated and used elsewhere, the Indicator used to make the calculation is no longer required.

[cutzpr]

Just out of curiosity, why do you want to dispose of it? Wouldn't you want to have it loaded for your next session? It doesn't sound like it is that CPU intensive.

Anyways, I personally wouldn't create it as an indicator, but as a static Add on that is called on each bar update to count++ a variable in the strategy, that way you don;t need to worry about disposing of it.

[Shansen]

cutzpr fair question. Once the number of bars in a trading session is calculated, it is the same for subsequent sessions (with a few exceptions). I'd prefer not to calculate the same number multiple times. While the code snippet from

NT post - Number of bars per session #2 by NinjaTrader_ZacharyG is not CPU intensive, my application has a couple SessionIterators which increase the CPU demand.

I believe I've implemented an suitable solution, without any dispose (or similar).

Now for curiosity, can a Strategy dispose (i.e. destroy) a (no longer required) Indicator?

[NinjaTrader_ChelseaB]

Hello Shansen,

Unfortunately, this would not be possible. NinjaTrader does all initializing, disposing, and data series syncing of called indicators behind the scenes.
The indicators would stay in memory until the script is disabled.