org.oakgp.function.coll

Class Count

java.lang.Object

org.oakgp.function.coll.Count

All Implemented Interfaces:

Function

public final class Count
extends Object
implements Function

Determines the number of elements contained in a collection.

Constructor Summary

Constructors

Constructor and Description
Count(Type t) Constructs a function to return the number of items in collections of the specified type.

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

Count

public Count(Type t)

Constructs a function to return the number of items in collections of the specified type.

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