net.sf.jga.fn.arithmetic
Class Negate<T extends java.lang.Number>

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

All Implemented Interfaces:

java.io.Serializable, Visitable

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

Returns the negative of its numeric argument.

Copyright © 2003-2005 David A. Hall

Author:

David A. Hall

See Also:

Serialized Form

Nested Class Summary

static interface

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

Constructor Summary

Negate(java.lang.Class<T> c)
Builds Negate functor for the given class.

Method Summary

void	accept(Visitor v) Calls the Visitor's visit(Negate) method, if it implements the nested Visitor interface.
T	fn(T x) Given numeric argument x, returns -x
java.lang.Class<T>	getType() Returns the type of operands this instance supports
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

Negate

public Negate(java.lang.Class<T> c)

Builds Negate 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

getType

public java.lang.Class<T> getType()

Returns the type of operands this instance supports

fn

public T fn(T x)

Given numeric argument x, returns -x

Specified by:

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

Returns:

the negative of its numeric argument

accept

public void accept(Visitor v)

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

Specified by:

accept in interface Visitable

Overrides:

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

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object