NSManagedObject is a generic class that implements all the basic behavior required of a Core Data model object. NSManagedObject is available in OS X v10.4 and later and available in iOS 3.0 and later.
From the documentation:
Overview
A managed object is associated with an entity description (NSEntityDescription) that provides metadata about the object, including the name of the entity that the object represents and the names of its attributes and relationships. A managed object is also associated with a managed object context that tracks changes to the object graph.
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Data Storage
In some respects, an NSManagedObject acts like a dictionary—it’s a generic container object that provides efficient storage for the properties defined by its associated NSEntityDescription instance. NSManagedObject supports a range of common types for attribute values, including string, date, and number (see NSAttributeDescription for full details).
Resource
Sample NSManagedObject declaration
In Objective-C:
NSManagedObjectContext *context = [self managedObjectContext];
//create a new managed object
NSManagedObject *newFlight = [NSEntityDescription insertNewObjectForEntityForName:@"FlightEvent"
inManagedObjectContext:context];
In Swift:
let newFlight = NSEntityDescription.insertNewObjectForEntityForName("FlightEvent", inManagedObjectContext: managedObjectContext)
