org.kie.dmn.feel.runtime.functions

Class BaseFEELFunction

java.lang.Object

org.kie.dmn.feel.runtime.functions.BaseFEELFunction

All Implemented Interfaces:

FEELFunction

Direct Known Subclasses:

AbsFunction, AbstractCustomFEELFunction, AfterFunction, AllFunction, AnyFunction, AppendFunction, BeforeFunction, CeilingFunction, CodeFunction, CoincidesFunction, ConcatenateFunction, ContainsFunction, CountFunction, 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, 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 abstract class BaseFEELFunction
extends Object
implements FEELFunction

Nested Class Summary

Nested classes/interfaces inherited from interface org.kie.dmn.feel.runtime.FEELFunction

FEELFunction.Param

Constructor Summary

Constructors

Constructor and Description
BaseFEELFunction(String name)

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	invoke(EvaluationContext ctx, Object[] params) this method should be overriden by custom function implementations that should be invoked reflectively
Object	invokeReflectively(EvaluationContext ctx, Object[] params) Invokes the function reflectively based on the parameters
protected boolean	isCustomFunction()
void	setName(String name)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaseFEELFunction

public BaseFEELFunction(String name)

Method Detail

getName

public String getName()

Description copied from interface: FEELFunction

Returns the name of the function

Specified by:

getName in interface FEELFunction

Returns:

setName

public void setName(String name)

getSymbol

public Symbol getSymbol()

Description copied from interface: FEELFunction

Returns the Symbol of the function

Specified by:

getSymbol in interface FEELFunction

Returns:

invokeReflectively

public Object invokeReflectively(EvaluationContext ctx,
                                 Object[] params)

Description copied from interface: FEELFunction

Invokes the function reflectively based on the parameters

Specified by:

invokeReflectively in interface FEELFunction

Returns:

invoke

public Object invoke(EvaluationContext ctx,
                     Object[] params)

this method should be overriden by custom function implementations that should be invoked reflectively

Parameters:

ctx -

params -

Returns:

getParameters

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

Description copied from interface: FEELFunction

Returns the parameter for each supported signature.

Specified by:

getParameters in interface FEELFunction

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" } }

isCustomFunction

protected boolean isCustomFunction()