org.apache.commons.functor.core
Class RightIdentity

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

public final class RightIdentity
extends Object

Holder class for a right-identity BinaryFunction (evaluates to the right argument) and a right-identity BinaryPredicate (tests whether right Boolean argument equals Boolean.TRUE).

Version:

$Revision: 1160415 $ $Date: 2011-08-22 22:14:38 +0200 (Mon, 22 Aug 2011) $

Author:

Rodney Waldhoff, Matt Benson

Field Summary

static BinaryFunction<Object,Object,Object>	FUNCTION Right-identity function.
static BinaryPredicate<Object,Boolean>	PREDICATE Right-identity predicate.

Constructor Summary

RightIdentity()
Create a new RightIdentity.

Method Summary

static <L,R> BinaryFunction<L,R,R>	function() Get a typed right-identity BinaryFunction.
static <L> BinaryPredicate<L,Boolean>	predicate() Get a typed right-identity BinaryPredicate.

Methods inherited from class java.lang.Object

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

Field Detail

FUNCTION

public static final BinaryFunction<Object,Object,Object> FUNCTION

Right-identity function.

PREDICATE

public static final BinaryPredicate<Object,Boolean> PREDICATE

Right-identity predicate.

Constructor Detail

RightIdentity

public RightIdentity()

Create a new RightIdentity.

Method Detail

function

public static <L,R> BinaryFunction<L,R,R> function()

Get a typed right-identity BinaryFunction.

Type Parameters:

L - the left argument type.

R - the right argument type.

Returns:

BinaryFunction

predicate

public static <L> BinaryPredicate<L,Boolean> predicate()

Get a typed right-identity BinaryPredicate.

Type Parameters:

L - the left argument type.

Returns:

BinaryPredicate