org.oakgp.function.hof

Class Reduce

java.lang.Object

org.oakgp.function.hof.Reduce

All Implemented Interfaces:

Function

public final class Reduce
extends Object
implements Function

Combines the elements of a collection by recursively applying a function.

Expects three arguments:

1. A function.
2. An initial value.
3. A collection.

See Also:

Wikipedia

Constructor Summary

Constructors

Constructor and Description
Reduce(Type type) Creates a higher order functions that recursively applies a function to the elements of a collection.

Method Summary

Modifier and Type	Method and Description
Object	evaluate(Arguments arguments, Assignments assignments) Returns the result of applying this operation to the specified Arguments and Assignments.
Signature	getSignature() Returns the return type and argument types associated with this function.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.oakgp.function.Function

getDisplayName, isPure, simplify

Constructor Detail

Reduce

public Reduce(Type type)

Creates a higher order functions that recursively applies a function to the elements of a collection.

Parameters:

type - the type of the elements contained in the collection - this will also be the type associated with the value produced by evaluating this function

Method Detail

evaluate

public Object evaluate(Arguments arguments,
                       Assignments assignments)

Description copied from interface: Function

Returns the result of applying this operation to the specified Arguments and Assignments.

Specified by:

evaluate in interface Function

Parameters:

arguments - represents the arguments to apply to the operation

assignments - represents values assigned to variables belonging to arguments

Returns:

the result of applying this operation to the arguments and assignments

getSignature

public Signature getSignature()

Description copied from interface: Function

Returns the return type and argument types associated with this function.

Specified by:

getSignature in interface Function