objc

Class Methods
NXNull Class Reference

The NXNull classNXNull represents a null value that can be inserted into collections. More...

#import <Foundation/Foundation.h>

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Collaboration diagram for NXNull:
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Class Methods

(NXNull *) + nullValue
 Returns the shared singleton instance of NXNull. More...
 
- Class Methods inherited from NXObject
(id+ allocWithZone:
 Allocates a new instance of an object in a specific memory zone. More...
 
- Class Methods inherited from Object
(void) + initialize
 Performs one-time initialization for the class. More...
 
(id+ alloc
 Allocate a new class instance. More...
 
(Class+ class
 Returns the class object. More...
 
(Class+ superclass
 Returns the superclass of the class. More...
 
(const char *) + name
 Returns the name of the class. More...
 
(BOOL+ conformsTo:
 Checks if the class conforms to a protocol. More...
 
(NXString *) + description
 Returns a string that represents the class. More...
 

Additional Inherited Members

- Instance Methods inherited from NXObject
(id- retain
 Increases the retain count of the receiver. More...
 
(void) - release
 Decreases the retain count of the receiver. More...
 
(id- autorelease
 Adds the receiver to the autorelease pool.
 
- Instance Methods inherited from Object
(void) - dealloc
 Free resources for an existing instance.
 
(id- init
 Initialize the instance, after allocation. More...
 
(Class- class
 Returns the class of the instance. More...
 
(Class- superclass
 Returns the superclass of the instance. More...
 
(BOOL- isEqual:
 Compares the receiver to another object for equality. More...
 
(BOOL- isKindOfClass:
 Returns a Boolean value that indicates whether the receiver is an instance of a given class. More...
 
(BOOL- conformsTo:
 Checks if the receiver's class conforms to a protocol. More...
 
(NXString *) - description
 Returns a string that represents the instance. More...
 
- Instance Methods inherited from <ObjectProtocol>
(BOOL- respondsToSelector:
 Checks if the receiver responds to a selector. More...
 
- Instance Methods inherited from <JSONProtocol>
(NXString *) - JSONString
 Returns a JSON representation of the instance. More...
 
(size_t) - JSONBytes
 Returns the appropriate capacity for the JSON representation of the instance. More...
 
- Protected Attributes inherited from NXObject
id _zone
 The memory zone where the object is allocated.
 
unsigned short _retain
 The retain count of the object.
 
id _next
 The next object in an autorelease pool.
 
- Protected Attributes inherited from Object
Class isa
 A pointer to the object's class structure. More...
 

Detailed Description

The NXNull class

NXNull represents a null value that can be inserted into collections.

Definition at line 19 of file NXNull.h.

Method Documentation

◆ nullValue()

+ (NXNull *) nullValue

Returns the shared singleton instance of NXNull.

Returns
The shared NXNull instance.

The documentation for this class was generated from the following file: