iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK

Creating an Entity

To create an entity, click the Add Entity button. A new entity will be added to the list of entities, and if the editor is in Graph style, a new entity box will be added to the view. Xcode will highlight the name of the entity and allow you to type in the desired name for the entity. The name of the entity can be changed at any time by just clicking twice on the entity name in the list of entities, or by selecting the desired entity and editing the entity name in the Utilities panel.

Core Data supports entity inheritance. For any entity, you can specify a parent entity from which your entity will inherit attributes, relationships, validations, and custom methods. To do that, ensure that the entity to be inherited from has been ...