net.sf.jga.fn.arithmetic
Class ValueOf<T extends java.lang.Number,R extends java.lang.Number>

java.lang.Object
  net.sf.jga.fn.Functor<R>
      net.sf.jga.fn.UnaryFunctor<T,R>
          net.sf.jga.fn.arithmetic.ValueOf<T,R>

All Implemented Interfaces:

java.io.Serializable, Visitable

public class ValueOf<T extends java.lang.Number,R extends java.lang.Number>
extends UnaryFunctor<T,R>

Returns the value of its numeric argument, converted to the approprate class.

Copyright © 2004-2005 David A. Hall

Author:

David A. Hall

See Also:

Serialized Form

Nested Class Summary

static interface

ValueOf.Visitor Interface for classes that may interpret a ValueOf functor.

Constructor Summary

ValueOf(java.lang.Class<R> c)
Builds ValueOf functor for the given class.

Method Summary

void	accept(Visitor v) Calls the Visitor's visit(ValueOf) method, if it implements the nested Visitor interface.
R	fn(T x) Given numeric argument x, converts x to the type passed at construction
java.lang.String	toString()

Methods inherited from class net.sf.jga.fn.UnaryFunctor

bind, bind0th, bindNth, compose, compose, compose, composeNth, composeNth, eval, generate, generateNth

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueOf

public ValueOf(java.lang.Class<R> c)

Builds ValueOf functor for the given class. The class argument must be the same as the generic class argument (when generics are in use) or else a ClassCastException will be thrown when the functor is used.

Throws:

java.lang.IllegalArgumentException - if the given class has no Arithmetic implementation registered with the ArithmeticFactory

Method Detail

fn

public R fn(T x)

Given numeric argument x, converts x to the type passed at construction

Specified by:

fn in class UnaryFunctor<T extends java.lang.Number,R extends java.lang.Number>

Returns:

the converted version of its numeric argument

accept

public void accept(Visitor v)

Calls the Visitor's visit(ValueOf) method, if it implements the nested Visitor interface.

Specified by:

accept in interface Visitable

Overrides:

accept in class Functor<R extends java.lang.Number>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object