net.sf.jga.fn.property
Class Cast<T,R>

java.lang.Object
  net.sf.jga.fn.Functor<R>
      net.sf.jga.fn.UnaryFunctor<T,R>
          net.sf.jga.fn.property.Cast<T,R>

All Implemented Interfaces:

java.io.Serializable, Visitable

public class Cast<T,R>
extends UnaryFunctor<T,R>

UnaryFunctor that returns its argument, cast to the given type. Executing the functor will throw ClassCastExceptions if the argument cannot be cast to the given type.

Copyright © 2004-2005 David A. Hall

Author:

David A. Hall

See Also:

Serialized Form

Nested Class Summary

static interface

Cast.Visitor Interface for classes that may interpret a Cast function.

Constructor Summary

Cast(java.lang.Class<R> cl)
Builds a Cast fuctor that returns values cast to the given type.

Method Summary

void	accept(Visitor v) Calls the Visitor's visit(InstanceOf) method, if it implements the nested Visitor interface.
R	fn(T arg) Executes the function and returns the result.
java.lang.Class<R>	getCastClass()
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

Cast

public Cast(java.lang.Class<R> cl)

Builds a Cast fuctor that returns values cast to the given type.

Throws:

java.lang.IllegalArgumentException - if the method name is null or empty, or if the argument type array is null.

Method Detail

getCastClass

public java.lang.Class<R> getCastClass()

fn

public R fn(T arg)

Description copied from class: UnaryFunctor

Executes the function and returns the result.

Specified by:

fn in class UnaryFunctor<T,R>

accept

public void accept(Visitor v)

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

Specified by:

accept in interface Visitable

Overrides:

accept in class Functor<R>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object