org.apache.commons.functor.core
Class Offset

java.lang.Object
  org.apache.commons.functor.core.Offset

All Implemented Interfaces:

BinaryFunctor<java.lang.Object,java.lang.Object>, BinaryPredicate<java.lang.Object,java.lang.Object>, Functor, NullaryFunctor, Predicate, UnaryFunctor<java.lang.Object>, UnaryPredicate<java.lang.Object>

public final class Offset
extends java.lang.Object
implements Predicate, UnaryPredicate<java.lang.Object>, BinaryPredicate<java.lang.Object,java.lang.Object>

A predicate that returns false the first n times it is invoked, and true thereafter.

Since:

1.0

Version:

$Revision: 665786 $ $Date: 2008-06-09 12:17:39 -0500 (Mon, 09 Jun 2008) $

Author:

Jason Horman (jason@jhorman.org), Rodney Waldhoff

Constructor Summary

Offset(int count)
Create a new Offset.

Method Summary

boolean	test() Evaluate this predicate.
boolean	test(java.lang.Object obj) Evaluate this predicate.
boolean	test(java.lang.Object a, java.lang.Object b) Evaluate this predicate.
java.lang.String	toString() Returns a human readable description of this functor.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.functor.Functor

equals, hashCode

Methods inherited from interface org.apache.commons.functor.Functor

equals, hashCode

Methods inherited from interface org.apache.commons.functor.Functor

equals, hashCode

Constructor Detail

Offset

public Offset(int count)

Create a new Offset.

Parameters:

count - offset

Method Detail

test

public boolean test()

Evaluate this predicate.

Specified by:

test in interface Predicate

Returns:

the result of this test

test

public boolean test(java.lang.Object obj)

Evaluate this predicate.

Specified by:

test in interface UnaryPredicate<java.lang.Object>

Parameters:

obj - the A object to test

Returns:

the result of this test

test

public boolean test(java.lang.Object a,
                    java.lang.Object b)

Evaluate this predicate.

Specified by:

test in interface BinaryPredicate<java.lang.Object,java.lang.Object>

Parameters:

a - the L element of the ordered pair of arguments

b - the R element of the ordered pair of arguments

Returns:

the result of this test for the given arguments

toString

public java.lang.String toString()

Returns a human readable description of this functor. Implementators are strongly encouraged but not strictly required to override the default Object implementation of this method.

Specified by:

toString in interface Functor

Overrides:

toString in class java.lang.Object

Returns:

a human readable description of this functor