>Let's use your example though.
>
>?pi() is IMO the ultimate way to get PI. Except that following is inconvenient:
>
>LOCAL m.lcSetDecimals
>m.lcSetDecimals = SET("DECIMALS")
>SET DECIMALS TO 18
>?PI()
>SET DECIMALS TO &lcSetDecimals.
>
>Which is more inconvenient?
>
>PI = oApp.GetPublic("PI")
>
>That kind of call opens up more flexibility in the design. GetPublic can be standardized and overridden. It can hide the complexity of a parameter object or whatever. I don't think there's a need to have one get and set method per variable, do you?

Yes, I like this idea. You pass the name of the constant and get it back using one public method of the global object.