I am porting an old IR app to OD that uses a deprecated 'setCollection' call. Can you tell me exactly what 'setCollection' used to do so that I replicate it properly?

Here is the code:
IVariable var = mySession.getVariable(IProjectVariables.THE_VAR);
var.setCollection(new ComplexCollection(var.getComplexVariable(),IProjectVariables.THE_VAR));

I want to make sure I properly handle the cases where var has values, or is already a collection with multiple values. Since the old forums disappeared, I could not tell exactly what 'setCollection' did.

Thanks!
Derek

setCollection would place a collection onto a variable so that you could store multiple values on it.

Use addCollection() which will create the collection for you.

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Right, but what does setCollection do if there is already a collection on the var? Does it leave the collection alone? I wasn't sure if it removed any existing data or not.

You will lose the old collection with a new call to either setCollection or addCollection.