Package me.datafox.dfxengine.values.operation

Class MappingOperationChain

java.lang.Object

me.datafox.dfxengine.values.operation.MappingOperationChain

All Implemented Interfaces:

BiFunction<Numeral,Numeral[],Numeral>, Operation

public final class MappingOperationChain
extends Object
implements Operation

An extension of the OperationChain which offers more flexible ways for routing parameters. There are two main changes. Firstly, inputs are now counted as regular parameters. This means that Operation.getParameterCount() now returns the number of parameters for all specified Operations, plus the amount of operations themselves. The second change is the inclusion of the MappingOperationChain.SpecialNumeral, which is used to request the source Numeral and the result of any prior operation as an arbitrary parameter. Two static methods are provided for these, sourceNumeral() and resultNumeral(int), but you can also instantiate a SpecialNumeral manually with SpecialNumeral(int), where -1 refers to the source and any positive value refers to the operation with that index. Referring to an operation that has yet to be executed results in an IllegalArgumentException.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MappingOperationChain.Builder	A Builder for MappingOperationChain.
static class	MappingOperationChain.SpecialNumeral	A special MappingOperationChain-specific extension of Numeral that is used to refer to the source numeral and the result numerals of Operations.

Constructor Summary

Constructors

Constructor	Description
MappingOperationChain(List<? extends Operation> operations)

Method Summary

Modifier and Type	Method	Description
Numeral	apply(Numeral source, Numeral... parameters)
static MappingOperationChain.Builder	builder()
static MappingOperationChain.SpecialNumeral	resultNumeral(int operationIndex)
static MappingOperationChain.SpecialNumeral	sourceNumeral()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.BiFunction

andThen

Methods inherited from interface me.datafox.dfxengine.values.api.operation.Operation

getParameterCount

Constructor Details

MappingOperationChain

public MappingOperationChain(List<? extends Operation> operations)

Parameters:

operations - Operations to associate with this operation

Method Details

sourceNumeral

public static MappingOperationChain.SpecialNumeral sourceNumeral()

Returns:

MappingOperationChain.SpecialNumeral that refers to the source Numeral

resultNumeral

public static MappingOperationChain.SpecialNumeral resultNumeral(int operationIndex)

Parameters:

operationIndex - index of the Operation to refer to

Returns:

MappingOperationChain.SpecialNumeral that refers to the result of the specified Operation

apply

public Numeral apply(Numeral source,
 Numeral... parameters)

Specified by:

apply in interface BiFunction<Numeral,Numeral[],Numeral>

Specified by:

apply in interface Operation

Parameters:

source - source Numeral for this operation

parameters - parameter Numerals for this operation

Returns:

resulting Numeral of this operation

Throws:

IllegalArgumentException - if the amount of parameters is not equal to Operation.getParameterCount()

builder

public static MappingOperationChain.Builder builder()

Returns:

MappingOperationChain.Builder instance