net.sf.jga.fn.property
Class Construct<R>

java.lang.Object
  net.sf.jga.fn.UnaryFunctor<java.lang.Object[],R>
      net.sf.jga.fn.property.Construct<R>

All Implemented Interfaces:

java.io.Serializable, Visitable

public class Construct<R>
extends UnaryFunctor<java.lang.Object[],R>

Unary Functor that constructs an object of the given class. The functor argument is an array containing the arguments to the class' constructor.

Copyright © 2003 David A. Hall

Author:

David A. Hall

See Also:

Serialized Form

Nested Class Summary

static interface

Construct.Visitor Interface for classes that may interpret a Construct predicate.

Constructor Summary

Construct(java.lang.Class[] argclasses, java.lang.Class<R> ctorclass)
Builds a functor that will build an object of class ctorclass, given arguments of classes in argclasses.

Construct(java.lang.reflect.Constructor<R> ctor)
Builds a functor that will build an object using the given constructor.

Method Summary

void	accept(Visitor v) Calls the Visitor's visit(Construct) method, if it implements the nested Visitor interface.
R	fn(java.lang.Object[] args) Builds an object via the designated constructor, passing the given array of argument values.
java.lang.String	toString()

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

bind, compose, compose, generate

Methods inherited from class java.lang.Object

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

Constructor Detail

Construct

public Construct(java.lang.Class[] argclasses,
                 java.lang.Class<R> ctorclass)

Builds a functor that will build an object of class ctorclass, given arguments of classes in argclasses.

Throws:

java.lang.IllegalArgumentException - if either argument is omitted, or if the constructor cannot be found.

Construct

public Construct(java.lang.reflect.Constructor<R> ctor)

Builds a functor that will build an object using the given constructor.

Throws:

java.lang.IllegalArgumentException - if the constructor is omitted.

Method Detail

fn

public R fn(java.lang.Object[] args)

Builds an object via the designated constructor, passing the given array of argument values.

Specified by:

fn in class UnaryFunctor<java.lang.Object[],R>

Returns:

the object built by the constructor

accept

public void accept(Visitor v)

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

Specified by:

accept in interface Visitable

Overrides:

accept in class UnaryFunctor<java.lang.Object[],R>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object