CoreDataUtilityTutorial.pdf

CoreDataUtilityTutorial

DataManagement

2010-09-19

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Contents

Introduction IntroductiontoCoreDataUtilityTutorial 7

WhoShouldReadThisDocument 7

OrganizationofThisDocument 7

SeeAlso 8

Chapter1 OverviewoftheTutorial 9

TaskGoal 9

Chapter2 CreatingtheProject 11

CreateaNewProject 11

Createtheproject 11

LinktheCoreDataframework 11

AdoptGarbageCollection 12

WhatHappened? 12

Chapter3 CreatingtheManagedObjectModel 13

SpecifyingtheEntity 13

CreatetheManagedObjectModel 13

CreatetheModelInstance 13

CreatetheEntity 14

AddtheAttributes 14

AddaLocalizationDictionary 15

InstantiateaManagedObjectModel 16

BuildandTest 16

CompleteListing 16

Chapter4 TheApplicationLogDirectory 19

TheapplicationLogDirectoryFunction 19

UpdatethemainFunction 20

BuildandTest 20

Chapter5 CreatingtheCoreDataStack 21

Overview 21

ThemanagedObjectContextFunction 21

CreatetheContextInstance 21

SetupthePersistentStoreCoordinatorandStore 22

CONTENTS

InstantiateaManagedObjectContext 22

BuildandTest 23

CompleteListing 23

Chapter6 TheCustomManagedObjectClass 25

ImplementingtheManagedObjectSubclass 25

CreatetheClassFiles 25

ImplementtheAccessorMethods 26

DealingWithnilValues 26

ImplementtheInitializer 27

CreateanInstanceoftheRunEntity 27

BuildandTest 28

CompleteListings 28

TheRunClass 28

Themain()Function 29

Chapter7 ListingPreviousRuns 31

FetchingRunObjects 31

CreateandExecutetheFetchRequest 31

DisplaytheResults 31

BuildandTest 32

Chapter8 CompleteSourceListings 33

main 33

TheRunClass 37

DocumentRevisionHistory 39

TablesandListings

Chapter3 CreatingtheManagedObjectModel 13

Table3-1 AttributesfortheRunentity 13

Listing3-1 Completelistingofthe managedObjectModel function 16

Chapter5 CreatingtheCoreDataStack 21

Listing5-1 Completelistingofthe managedObjectContext function 23

Chapter6 TheCustomManagedObjectClass 25

Listing6-1 CompletelistingofthedeclarationandimplementationoftheRunclass 28

Listing6-2 Listingofthe main function 29

Chapter8 CompleteSourceListings 33

Listing8-1 Completelistingofthe main sourcefile 33

Listing8-2 ListingofthedeclarationoftheRunclass 37

Listing8-3 ListingoftheimplementationoftheRunclass 37

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