Core Data for iOS: Developing Data-Driven Applications for the iPad, iPhone, and iPod touch

Chapter 6. Working with Managed Objects

IN THIS CHAPTER

• Basic Managed Object Subclass Files

• Configuring the Random People Application

• Data Validation

• Working with Transient Attributes

• Working with Transformable Attributes

• The Managed Object Lifecycle

At the end of Chapter 4, “Basic Storing and Fetching,” you saw how to create a managed object subclass for an entity. You used the Xcode Managed Object Class Generator to create the relevant interface and implementation files for an AWRandomDate class, inheriting from NSManagedObject.

In this chapter, you’ll look at the functionality provided automatically in these generated files, such as property declarations for the attributes on your entities. You’ll see how to add transient attributes, ...