com.crystaldecisions.reports.formulas
Interface ImpureFormulaFunction


public interface ImpureFormulaFunction

Used to indicate that a FormulaFunction is not pure; which means that it is a non-deterministic function, such as a random number generator. Any function which cannot guarantee that it will always return the same results for the same set of arguments must implement this interface. Otherwise, formulas which call the function may produce incorrect or inconsistent results.