iPhone Persistence For Mere Mortals

•

1 like•2,229 views

Tony Hillerson

iPhone Persistence talk I gave at 360|iDev in Spring 2008.

Technology

Code and Slides:
http://thillerson.googlecode.com

iPhone Persistence Tony Hillerson
For Mere Mortals Software Architect

Tuesday, March 3, 2009

Persistence

Code and Slides:
http://thillerson.googlecode.com

Tuesday, March 3, 2009

Persistence

Code and Slides:
http://thillerson.googlecode.com

... or it means saving stuﬀ.

Tuesday, March 3, 2009

Persistence: Disclaimer

Code and Slides:
http://thillerson.googlecode.com

BTW: I’m a n00b

Tuesday, March 3, 2009

Code and Slides:
http://thillerson.googlecode.com

Persistence: Savin’ stuﬀ on ur fone
Your options

Tuesday, March 3, 2009

Persistence: Options

Code and Slides:
http://thillerson.googlecode.com
Settings
SQLite
Filesystem
The Internets

Tuesday, March 3, 2009

Persistence: Our Sweet App

Code and Slides:
http://thillerson.googlecode.com

Tuesday, March 3, 2009

Persistence: Sweet Codes
http://github.com/thillerson/grocery_getter/
Code and Slides:
http://thillerson.googlecode.com
Download

Tuesday, March 3, 2009

Code and Slides:
http://thillerson.googlecode.com

Persistence: Settings
Yours or Apple’s?

Tuesday, March 3, 2009

Persistence: Settings

Code and Slides:
http://thillerson.googlecode.com

Apple’s => Settings.bundle
Yours => Roll your own
Both end up in
NSUserDefaults

Tuesday, March 3, 2009

Persistence: Settings

Code and Slides:
http://thillerson.googlecode.com
Can be one of:
NSData, NSString,
NSNumber, NSDate,
NSArray, or NSDictionary

Tuesday, March 3, 2009

Persistence: Settings

Code and Slides:
http://thillerson.googlecode.com
NSUserDefaults *settings =
[NSUserDefaults standardUserDefaults];
[settings setBool:YES
forKey:@quot;shouldSortAfterCompletequot;];
[NSUserDefaults standardUserDefaults];

[NSUserDefaults resetStandardUserDefaults];
BOOL on =
[settings
boolForKey:@quot;shouldSortAfterCompletequot;];

Tuesday, March 3, 2009

Code and Slides:
http://thillerson.googlecode.com

Persistence: SQLite
It’s small, but it’s feisty!

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
http://thillerson.googlecode.com

YO DAWG I HERD YOU
LIEK DATA...
Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
http://thillerson.googlecode.com

SQLite - Embedded Relational
Database written in C

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
http://thillerson.googlecode.com
Embedded Relational Database

written in C

Tuesday, March 3, 2009

SQLite:
Code and Slides:
Hic Draconae
http://thillerson.googlecode.com
Sunt

CocoaTouch:
Terra Firma

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
http://thillerson.googlecode.com
3 Takes on our Sweet App:
• SQLite C API
• fmdb + fmdb-migration-
manager
• Aptiva’s ActiveRecord

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
http://thillerson.googlecode.com
SQL C API:
http://www.sqlite.org/c3ref/
funclist.html

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
• fmdb - Thin Wrapper around SQLite
http://thillerson.googlecode.com
• fmdb-migration-manager - Rails-style
migrations using fmdb

• http://code.google.com/p/ ycode/
• http://github.com/mocra/fmdb-
migration-manager/

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
• Aptiva’s ActiveRecord
http://thillerson.googlecode.com
In software engineering, the active record pattern is a design
pattern frequently found in software that stores its data in
relational databases. It was named by Martin Fowler in his book
Patterns of Enterprise Application Architecture.
- http://en.wikipedia.org/wiki/Active_record_pattern

http://github.com/aptiva/
activerecord/

Tuesday, March 3, 2009

Persistence: SQLite

Code and Slides:
http://thillerson.googlecode.com

Quick! To the CODES!

Tuesday, March 3, 2009

Code and Slides:
http://thillerson.googlecode.com

Persistence: A Few Points
Take two, they’re small!

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com

Consider how your
settings will be used

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com

A database is an
implementation detail

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com

Encapsulation is your
friend

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com

Don’t forget to move your
database

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com
SQLite write speed is
constrained by
transactions

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com

SQLite uses duck-typing

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com
FMDB:
executeQuery !=
executeUpdate

Tuesday, March 3, 2009

Persistence: Tips

Code and Slides:
http://thillerson.googlecode.com

RTFS

Tuesday, March 3, 2009

Persistence: Thank you!
Tony Hillerson
Code and Slides:
Software Architect

http://thillerson.googlecode.com
slideshare.com/thillerson
github.com/thillerson
twitter.com/thillerson
brightkite.com/thillerson

EﬀectiveUI.com

Tuesday, March 3, 2009

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iPhone Persistence For Mere Mortals

1. Code and Slides: http://thillerson.googlecode.com iPhone Persistence Tony Hillerson For Mere Mortals Software Architect Tuesday, March 3, 2009

2. Persistence Code and Slides: http://thillerson.googlecode.com Tuesday, March 3, 2009

3. Persistence Code and Slides: http://thillerson.googlecode.com ... or it means saving stuﬀ. Tuesday, March 3, 2009

4. Persistence: Disclaimer Code and Slides: http://thillerson.googlecode.com BTW: I’m a n00b Tuesday, March 3, 2009

5. Code and Slides: http://thillerson.googlecode.com Persistence: Savin’ stuﬀ on ur fone Your options Tuesday, March 3, 2009

6. Persistence: Options Code and Slides: http://thillerson.googlecode.com Settings SQLite Filesystem The Internets Tuesday, March 3, 2009

7. Persistence: Options Code and Slides: http://thillerson.googlecode.com Settings SQLite Filesystem The Internets Tuesday, March 3, 2009

8. Persistence: Our Sweet App Code and Slides: http://thillerson.googlecode.com Tuesday, March 3, 2009

9. Persistence: Sweet Codes http://github.com/thillerson/grocery_getter/ Code and Slides: http://thillerson.googlecode.com Download Tuesday, March 3, 2009

10. Code and Slides: http://thillerson.googlecode.com Persistence: Settings Yours or Apple’s? Tuesday, March 3, 2009

11. Persistence: Settings Code and Slides: http://thillerson.googlecode.com Apple’s => Settings.bundle Yours => Roll your own Both end up in NSUserDefaults Tuesday, March 3, 2009

12. Persistence: Settings Code and Slides: http://thillerson.googlecode.com Can be one of: NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary Tuesday, March 3, 2009

13. Persistence: Settings Code and Slides: http://thillerson.googlecode.com NSUserDefaults *settings = [NSUserDefaults standardUserDefaults]; [settings setBool:YES forKey:@quot;shouldSortAfterCompletequot;]; [NSUserDefaults standardUserDefaults]; [NSUserDefaults resetStandardUserDefaults]; BOOL on = [settings boolForKey:@quot;shouldSortAfterCompletequot;]; Tuesday, March 3, 2009

14. Code and Slides: http://thillerson.googlecode.com Persistence: SQLite It’s small, but it’s feisty! Tuesday, March 3, 2009

15. Persistence: SQLite Code and Slides: http://thillerson.googlecode.com YO DAWG I HERD YOU LIEK DATA... Tuesday, March 3, 2009

16. Persistence: SQLite Code and Slides: http://thillerson.googlecode.com SQLite - Embedded Relational Database written in C Tuesday, March 3, 2009

17. Persistence: SQLite Code and Slides: http://thillerson.googlecode.com Embedded Relational Database written in C Tuesday, March 3, 2009

18. SQLite: Code and Slides: Hic Draconae http://thillerson.googlecode.com Sunt CocoaTouch: Terra Firma Tuesday, March 3, 2009

19. Persistence: SQLite Code and Slides: http://thillerson.googlecode.com 3 Takes on our Sweet App: • SQLite C API • fmdb + fmdb-migration- manager • Aptiva’s ActiveRecord Tuesday, March 3, 2009

20. Persistence: SQLite Code and Slides: http://thillerson.googlecode.com SQL C API: http://www.sqlite.org/c3ref/ funclist.html Tuesday, March 3, 2009

21. Persistence: SQLite Code and Slides: • fmdb - Thin Wrapper around SQLite http://thillerson.googlecode.com • fmdb-migration-manager - Rails-style migrations using fmdb • http://code.google.com/p/ ycode/ • http://github.com/mocra/fmdb- migration-manager/ Tuesday, March 3, 2009

22. Persistence: SQLite Code and Slides: • Aptiva’s ActiveRecord http://thillerson.googlecode.com In software engineering, the active record pattern is a design pattern frequently found in software that stores its data in relational databases. It was named by Martin Fowler in his book Patterns of Enterprise Application Architecture. - http://en.wikipedia.org/wiki/Active_record_pattern http://github.com/aptiva/ activerecord/ Tuesday, March 3, 2009

23. Persistence: SQLite Code and Slides: http://thillerson.googlecode.com Quick! To the CODES! Tuesday, March 3, 2009

24. Code and Slides: http://thillerson.googlecode.com Persistence: A Few Points Take two, they’re small! Tuesday, March 3, 2009

25. Persistence: Tips Code and Slides: http://thillerson.googlecode.com Consider how your settings will be used Tuesday, March 3, 2009

26. Persistence: Tips Code and Slides: http://thillerson.googlecode.com A database is an implementation detail Tuesday, March 3, 2009

27. Persistence: Tips Code and Slides: http://thillerson.googlecode.com Encapsulation is your friend Tuesday, March 3, 2009

28. Persistence: Tips Code and Slides: http://thillerson.googlecode.com Don’t forget to move your database Tuesday, March 3, 2009

29. Persistence: Tips Code and Slides: http://thillerson.googlecode.com SQLite write speed is constrained by transactions Tuesday, March 3, 2009

30. Persistence: Tips Code and Slides: http://thillerson.googlecode.com SQLite uses duck-typing Tuesday, March 3, 2009

31. Persistence: Tips Code and Slides: http://thillerson.googlecode.com FMDB: executeQuery != executeUpdate Tuesday, March 3, 2009

32. Persistence: Tips Code and Slides: http://thillerson.googlecode.com RTFS Tuesday, March 3, 2009

33. Persistence: Thank you! Tony Hillerson Code and Slides: Software Architect http://thillerson.googlecode.com slideshare.com/thillerson github.com/thillerson twitter.com/thillerson brightkite.com/thillerson EﬀectiveUI.com Tuesday, March 3, 2009

iPhone Persistence For Mere Mortals

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