org.jfree.formula.function
Interface Function
- Serializable
- AbsFunction, AndFunction, AverageFunction, ChooseFunction, DateDifFunction, DateFunction, DateValueFunction, DayFunction, EvenFunction, ExactFunction, FalseFunction, FindFunction, HasChangedFunction, HourFunction, IfFunction, IntFunction, IsBlankFunction, IsErrFunction, IsErrorFunction, IsEvenFunction, IsLogicalFunction, IsNaFunction, IsNonTextFunction, IsNumberFunction, IsOddFunction, IsRefFunction, IsTextFunction, LeftFunction, LenFunction, LowerFunction, MappedFunction, MaxFunction, MidFunction, MinFunction, ModFunction, MonthFunction, NaFunction, NotFunction, NowFunction, OddFunction, OrFunction, ReplaceFunction, ReptFunction, RightFunction, SubstituteFunction, SumFunction, TextFunction, TFunction, TimeFunction, TodayFunction, TrimFunction, TrueFunction, UpperFunction, URLEncodeFunction, WeekDayFunction, XorFunction, YearFunction
A function is an arbitary computation. A return value type is not available
unless the function has been evaluated.
Functions must be stateless, that means: Calling the same function with
exactly the same parameters must always result in the same computed value.