Core Data NSAttribute Type 數據類型

一：使用Core Data 的可用數據類型

NSAttributeType
Defines the possible types of NSAttributeType properties. These explicitly distinguish between bit sizes to ensure data store independence.

typedef enum {
NSUndefinedAttributeType = 0,
NSInteger16AttributeType = 100,
NSInteger32AttributeType = 200,
NSInteger64AttributeType = 300,
NSDecimalAttributeType = 400,
NSDoubleAttributeType = 500,
NSFloatAttributeType = 600,
NSStringAttributeType = 700,
NSBooleanAttributeType = 800,
NSDateAttributeType = 900,
NSBinaryDataAttributeType = 1000,
NSTransformableAttributeType = 1800,
NSObjectIDAttributeType = 2000
} NSAttributeType;
Constants
NSUndefinedAttributeType
Specifies an undefined attribute type.
NSUndefinedAttributeType is valid for transient properties—Core Data will still track the property as an id value and register undo/redo actions, and so on. NSUndefinedAttributeType is illegal for non-transient properties.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSInteger16AttributeType
Specifies a 16-bit signed integer attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSInteger32AttributeType
Specifies a 32-bit signed integer attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSInteger64AttributeType
Specifies a 64-bit signed integer attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSDecimalAttributeType
Specifies an NSDecimalNumber attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSDoubleAttributeType
Specifies a double attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSFloatAttributeType
Specifies a float attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSStringAttributeType
Specifies an NSString attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSBooleanAttributeType
Specifies a Boolean attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSDateAttributeType
Specifies an NSDate attribute.
Times are specified in GMT.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSBinaryDataAttributeType
Specifies an NSData attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSTransformableAttributeType
Specifies an attribute that uses a value transformer.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
NSObjectIDAttributeType
Specifies the object ID attribute.
Available in iOS 3.0 and later.
Declared in NSAttributeDescription.h.
Availability
Available in iOS 3.0 and later.
Declared In
NSAttributeDescription.h

二：類型

typedef enum {
NSUndefinedAttributeType = 0,
NSInteger16AttributeType = 100,
NSInteger32AttributeType = 200,
NSInteger64AttributeType = 300,
NSDecimalAttributeType = 400,
NSDoubleAttributeType = 500,
NSFloatAttributeType = 600,
NSStringAttributeType = 700,
NSBooleanAttributeType = 800,
NSDateAttributeType = 900,
NSBinaryDataAttributeType = 1000,
NSTransformableAttributeType = 1800,
NSObjectIDAttributeType = 2000
} NSAttributeType;

三：

參考：https://developer.apple.com/library/ios/documentation/Cocoa/Reference/CoreDataFramework/Classes/NSAttributeDescription_Class/reference.html#//apple_ref/doc/c_ref/NSAttributeType

http://stackoverflow.com/questions/10546632/list-of-core-data-attribute-types