What Is Transformable in Core Data?

Core Data supports entity attributes of 'Transformable' type. Transformable type allows us to store custom data types as an object of the declared attribute for a record of an Entity. The only requirement is that our custom type should conform to NSCoding or we need to provide a custom value transformer.

What is transient property in Core Data?

Defining Attributes and Relationships

Transient attributes are properties that you define as part of the model, but that are not saved to the persistent store as part of an entity instance's data. Core Data does track changes you make to transient properties, so they are recorded for undo operations.

What is NSManagedObjectContext in Core Data?

NSManagedObjectContext. The NSManagedObjectContext object manages a collection of model objects, instances of the NSManagedObject class. It is possible for an application to have multiple managed object contexts. Each managed object context is backed by a persistent store coordinator.