Returns the value for the property specified by
- iOS 3.0+
- macOS 10.4+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The name of one of the receiver's properties.
The value of the property specified by
key is not a property defined by the model, the method raises an exception. This method is overridden by
NSManagedObject to access the managed object’s generic dictionary storage unless the receiver’s class explicitly provides key-value coding compliant accessor methods for
Supporting Key-Value Coding
Sets the specified property of the managed object to the specified value.
Returns a mutable set that provides read-write access to the unordered to-many relationship specified by a given key.
Returns the value for the specified property from the managed object’s private internal storage .
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