org.kie.dmn.feel.runtime

Interface FEELFunction

All Known Implementing Classes:

AbsFunction, AbstractCustomFEELFunction, AfterFunction, AllFunction, AnyFunction, AppendFunction, BaseFEELFunction, BeforeFunction, CeilingFunction, CodeFunction, CoincidesFunction, CompiledCustomFEELFunction, ConcatenateFunction, ContainsFunction, CountFunction, CustomFEELFunction, DateAndTimeFunction, DateFunction, DateFunction, DayOfWeekFunction, DayOfYearFunction, DecimalFunction, DecisionTableFunction, DistinctValuesFunction, DTInvokerFunction, DurationFunction, DurationFunction, DuringFunction, EndsWithFunction, EvenFunction, ExpFunction, FinishedByFunction, FinishesFunction, FlattenFunction, FloorFunction, GetEntriesFunction, GetValueFunction, IncludesFunction, IndexOfFunction, InsertBeforeFunction, InvokeFunction, IsFunction, JavaFunction, ListContainsFunction, LogFunction, MatchesFunction, MaxFunction, MeanFunction, MedianFunction, MeetsFunction, MetByFunction, MinFunction, ModeFunction, ModuloFunction, MonthOfYearFunction, NNAllFunction, NNAnyFunction, NNCountFunction, NNMaxFunction, NNMeanFunction, NNMedianFunction, NNMinFunction, NNModeFunction, NNStddevFunction, NNSumFunction, NotFunction, NowFunction, NumberFunction, OddFunction, OverlappedAfterByFunction, OverlappedBeforeByFunction, OverlappedByFunction, OverlapsAfterFunction, OverlapsBeforeFunction, OverlapsFunction, ProductFunction, RemoveFunction, ReplaceFunction, ReverseFunction, SortFunction, SplitFunction, SqrtFunction, StartedByFunction, StartsFunction, StartsWithFunction, StddevFunction, StringFunction, StringLengthFunction, StringLowerCaseFunction, StringUpperCaseFunction, SublistFunction, SubstringAfterFunction, SubstringBeforeFunction, SubstringFunction, SumFunction, TimeFunction, TimeFunction, TodayFunction, UnionFunction, WeekOfYearFunction, YearsAndMonthsFunction

public interface FEELFunction

An interface for all FEEL functions, custom or built-in

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	FEELFunction.Param

Method Summary

Modifier and Type	Method and Description
String	getName() Returns the name of the function
List<List<FEELFunction.Param>>	getParameters() Returns the parameter for each supported signature.
Symbol	getSymbol() Returns the Symbol of the function
Object	invokeReflectively(EvaluationContext ctx, Object[] params) Invokes the function reflectively based on the parameters

Method Detail

getName

String getName()

Returns the name of the function

Returns:

getSymbol

Symbol getSymbol()

Returns the Symbol of the function

Returns:

getParameters

List<List<FEELFunction.Param>> getParameters()

Returns the parameter for each supported signature.

Returns:

a List of Lists of Strings with the parameters. For a function with multiple signatures, each element of the list returns the parameters of one signature. E.g.: the substring function has 2 supported signatures: substring( string, start position ) substring( string, start position, length ) So this method will return: { { "string", "start position" }, { "string", "start position", "length" } }

invokeReflectively

Object invokeReflectively(EvaluationContext ctx,
                          Object[] params)

Invokes the function reflectively based on the parameters

Parameters:

ctx -

params -

Returns: