util
Class NoOpLambda

java.lang.Object
  util.NoOpLambda

All Implemented Interfaces:

ILambda

public class NoOpLambda
extends java.lang.Object
implements ILambda

Represents the identity map. Null-object pattern for ILambda.

Author:

Dung X. Nguyen

Field Summary

static NoOpLambda

Singleton This is the class field that gives access to the one instance of this class

Constructor Summary

private

NoOpLambda() A private constructor keeps everyone except this class from constructing an instance.

Method Summary

java.lang.Object

apply(java.lang.Object arg) Does nothing.

Methods inherited from class java.lang.Object

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

Field Detail

Singleton

public static final NoOpLambda Singleton

This is the class field that gives access to the one instance of this class

Constructor Detail

NoOpLambda

private NoOpLambda()

A private constructor keeps everyone except this class from constructing an instance.

Method Detail

apply

public java.lang.Object apply(java.lang.Object arg)

Does nothing.

Specified by:

apply in interface ILambda

Parameters:

arg - input object for this ILambda object.

Returns:

arg as is.