Pro Core Data for iOS · Data Access and Persistence Engine for iPhone, iPad, and iPod Touch · 2nd Edition by Michael Privat, Robert Warner -- Read -- Imperial Library of Trantor

Index

Cover Title Copyright Dedication Contents at a Glance Contents About the Authors About the Technical Reviewer Acknowledgments Introduction Chapter 1: Getting Started

What Is Core Data? History of Persistence in iOS Creating a Basic Core Data Application

Understanding the Core Data Components Creating a New Project Running Your New Project Understanding the Application's Components Fetching Results Inserting New Objects Initializing the Managed Context

Adding Core Data to an Existing Project

Adding the Core Data Framework Creating the Data Model Initializing the Managed Object Context

Summary

Chapter 2: Understanding Core Data

Core Data Framework Classes

The Model Definition Classes The Data Access Classes Key-Value Observing The Query Classes

How the Classes Interact

SQLite Primer Reading the Data Using Core Data

Summary

Chapter 3: Storing Data: SQLite and Other Options

Visualizing the User Interface Using SQLite as the Persistent Store

Configuring the One-to-Many Relationship Building the User Interface Configuring the Table Creating a Team The Player User Interface Adding, Editing, and Deleting Players Seeing the Data in the Persistent Store

Using an In-Memory Persistent Store Creating Your Own Custom Persistent Store

Initializing the Custom Store Mapping Between NSManagedObject and NSAtomicStoreCacheNode Serializing the Data Using the Custom Store What About XML Persistent Stores?

Summary

Chapter 4: Creating a Data Model

Designing Your Database

Relational Database Normalization

Using the Xcode Data Modeler

Viewing and Editing Attribute Details Viewing and Editing Relationship Details Using Fetched Properties

Creating Entities Creating Attributes Creating Relationships

Name Destination and Inverse Transient Optional To-Many Relationship Count (Minimum and Maximum) Delete Rule

Summary

Chapter 5: Working with Data Objects

Understanding CRUD

Creating the Shape Application Data Model Building the Shape Application User Interface Enabling User Interactions with the Shapes Application

Generating Classes Modifying Generated Classes Using the Transformable Type Validating Data

Custom Validation Invoking Validation Default Values

Undoing and Redoing

Undo Groups Limiting the Undo Stack Disabling Undo Tracking Adding Undo to Shapes

Summary

Chapter 6: Refining Result Sets

Building the Test Application

Creating the Org Chart Data Reading and Outputting the Data

Filtering

Expressions for a Single Value Expressions for a Collection Comparison Predicates Compound Predicates Subqueries

Aggregating Sorting

Returning Unsorted Data Sorting Data on One Criterion Sorting on Multiple Criteria

Summary

Chapter 7: Tuning Performance and Memory Usage

Building the Application for Testing

Creating the Core Data Project Creating the Data Model and Data Creating the Testing View Building the Testing Framework Adding the Testing Framework to the Application Running Your First Test

Faulting

Firing Faults Faulting and Caching Refaulting Building the Faulting Test Taking Control: Firing Faults on Purpose Prefetching

Caching Expiring

Memory Consumption Brute-Force Cache Expiration Expiring the Cache Through Faulting

Uniquing Improve Performance with Better Predicates

Using Faster Comparators Using Subqueries

Analyzing Performance

Launching Instruments Understanding the Results

Summary

Chapter 8: Versioning and Migrating Data

Versioning Lightweight Migrations

Migrating a Simple Change Migrating More Complex Changes Renaming Entities and Properties

Creating a Mapping Model

Understanding Entity Mappings Understanding Property Mappings Creating a New Model Version That Requires a Mapping Model Creating a Mapping Model

Migrating Data

Running Your Migration

Custom Migrations

Making Sure Migration Is Needed Setting Up the Migration Manager Running the Migration

Summary

Chapter 9: Managing Table Views Using a Fetched Results Controller

Understanding NSFetchedResultsController

The Fetch Request The Managed Object Context The Section Name Key Path The Cache Name

Understanding NSFetchedResultsController Delegates Using NSFetchedResultsController Implementing NSFetchedResultsController in League Manager Implementing the NSFetchedResultsController Implementing the NSFetchedResultsControllerDelegate Protocol

Indexing Your Table Responding to Data Change

Summary

Chapter 10: Using Core Data in Advanced Applications

Creating an Application for Note and Password Storage and Encryption

Setting Up the Data Model Setting Up the Tab Bar Controller Adding the Tab Incorporating NSFetchedResultsController into MyStash Creating the Interface for Adding and Editing Notes and Passwords

Splitting Data Across Multiple Persistent Stores

Using Model Configurations

Adding Encryption

Persistent Store Encryption Using Data Protection Data Encryption

Sending Notifications When Data Changes

Registering an Observer Receiving the Notifications

Seeding Data

Adding Categories to Passwords Creating a New Version of Seeded Data

Error Handling

Handling Core Data Operational Errors Handling Validation Errors Handling Validation Errors in MyStash

Summary

Index

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