Class CPNull

CPObject
    extended byCPNull

@implementation CPNull : CPObject

This class is used as an object representation of nil. This is handy when a collection only accepts objects as values, but you would like a nil representation in there.


Method Summary
+(CPNull)null
          Returns the singleton instance of the CPNull object.

Methods inherited from class CPObject
initialize, alloc, class, instanceMethodForSelector, instancesRespondToSelector, isSubclassOfClass, load, new, setVersion, superclass, version, init, autorelease, awakeAfterUsingCoder, class, classForCoder, classForKeyedArchiver, className, copy, dealloc, description, doesNotRecognizeSelector, forwardInvocation, hash, isEqual, isKindOfClass, isMemberOfClass, isProxy, methodForSelector, methodSignatureForSelector, mutableCopy, performSelector, performSelector, performSelector, release, replacementObjectForArchiver, replacementObjectForCoder, replacementObjectForKeyedArchiver, respondsToSelector, retain, self, superclass


Method Detail

null

+(CPNull)null
Returns the singleton instance of the CPNull object. While CPNull and nil should be interpreted as the same, they are not equal ('==').

Created on Sat Sep 13 14:15:43 PDT 2008