Enumeration Case

NSUndefinedAttributeType

An undefined attribute type.

Declaration

NSUndefinedAttributeType = 0

Discussion

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.

See Also

Attribute Types

NSInteger16AttributeType

A 16-bit signed integer attribute.

NSInteger32AttributeType

A 32-bit signed integer attribute.

NSInteger64AttributeType

A 64-bit signed integer attribute.

NSDecimalAttributeType

An NSDecimalNumber attribute.

NSDoubleAttributeType

A double attribute.

NSFloatAttributeType

A float attribute.

NSStringAttributeType

An NSString attribute.

NSBooleanAttributeType

A Boolean attribute.

NSDateAttributeType

An NSDate attribute.

NSBinaryDataAttributeType

An NSData attribute.

NSTransformableAttributeType

An attribute that uses a value transformer.

NSObjectIDAttributeType

The object ID attribute.

NSURIAttributeType

A URI attribute.

NSUUIDAttributeType

A UUID attribute.