net.sf.jga.fn.adaptor
Class BindNth<R>

java.lang.Object
  net.sf.jga.fn.Functor<R>
      net.sf.jga.fn.adaptor.BindNth<R>

All Implemented Interfaces:

java.io.Serializable, Visitable

public class BindNth<R>
extends Functor<R>

Functor that binds values into the argument list of a nested functor at an arbtirary location.

Copyright © 2009 David A. Hall

Author:

David A. Hall

See Also:

Serialized Form

Nested Class Summary

static interface

BindNth.Visitor x Interface for classes that may interpret an BindNth functor.

Constructor Summary

BindNth(Functor<R> fn, int idx, java.lang.Object binding0, java.lang.Object... bindings)

Method Summary

void	accept(Visitor v) Calls the Visitor's visit(BindNth) method, if it implements the nested Visitor interface.
R	eval(java.lang.Object... args) Returns the results of the functor, binding the constant values given at construction to the arguments starting with the given index.
java.lang.String	toString()

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

bind0th, bindNth, composeNth, composeNth, generateNth

Methods inherited from class java.lang.Object

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

Constructor Detail

BindNth

public BindNth(Functor<R> fn,
               int idx,
               java.lang.Object binding0,
               java.lang.Object... bindings)

Method Detail

eval

public R eval(java.lang.Object... args)

Returns the results of the functor, binding the constant values given at construction to the arguments starting with the given index.

Specified by:

eval in class Functor<R>

Returns:

fn.eval(args[0], ..., args[i - 1], bindings[0], ..., bindings[bindings.len - 1], args[i], ...)

Throws:

java.lang.ArrayIndexOutOfBoundsException - if the length of the args array is less than the starting index given at construction.

accept

public void accept(Visitor v)

Calls the Visitor's visit(BindNth) 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