net.sf.jga.fn.property
Class InstanceOf<T>

java.lang.Object
  net.sf.jga.fn.UnaryFunctor<T,java.lang.Boolean>
      net.sf.jga.fn.UnaryPredicate<T>
          net.sf.jga.fn.property.InstanceOf<T>

All Implemented Interfaces:

java.io.Serializable, Visitable

public class InstanceOf<T>
extends UnaryPredicate<T>

Functor that returns true if the argument is of the given subtype of T.

Copyright © 2004 David A. Hall

Author:

David A. Hall

See Also:

Serialized Form

Nested Class Summary

static interface

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

Constructor Summary

InstanceOf(java.lang.Class<? extends T> cl)
Builds a InstanceOf predicate that tests against the given class.

Method Summary

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

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

p

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

InstanceOf

public InstanceOf(java.lang.Class<? extends T> cl)

Builds a InstanceOf predicate that tests against the given class.

Throws:

java.lang.IllegalArgumentException - if the class is null.

Method Detail

getTestClass

public java.lang.Class<? extends T> getTestClass()

fn

public java.lang.Boolean fn(T arg)

Description copied from class: UnaryFunctor

Executes the function and returns the result.

Specified by:

fn in class UnaryFunctor<T,java.lang.Boolean>

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 UnaryFunctor<T,java.lang.Boolean>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object