Introduction to AutoValue

I have talked about AutoValue, a library that generates Immutable value-type codes for Java 1.6+. This talk is an introduction to AutoValue library; check out the links below to learn more about AutoValue. I am guessing that those articles and the talk will help you understand more about AutoValue itself and the power of it.

* “A Deeper Look at AutoValue” - Ryan Harter

http://ryanharter.com/blog/2016/04/08/autovalue-deep-dive/

* “AutoValue Extensions” - Ryan Harter

http://ryanharter.com/blog/2016/05/16/autovalue-extensions/

* “AutoValue Extensions” - Jake Wharton

http://jakewharton.com/auto-value-extensions-ny-android-meetup/

Transcript

1. AutoValue shaunkawano
2. Article.class Amazingly Simple POJO
5. We want Article to be Value-Typed
6. We want Article to be Value-Typed (immutable, null-safe)
7. 1. Finalize class and fields 2. Add constructor 3. Add getters
10. Is only referential equality safe enough?
11. Override equals()
13. Override hashCode() (if use Article as key in set or maps)
15. toString() is nice for debugging!
17. Parcelable anyone?
19. Before-After
22. ~100 Lines
23. Add new field? Remove field? Rename field? Write/Rewrite test? 1 year later?
25. AutoValue https://github.com/google/auto
26. Usage // root dependencies { classpath ‘com.neenbedankt.gradle.plugins:android-apt:1.8’ … } … // app dependencies { provided 'com.google.auto.value:auto-value:1.3-rc2' }
27. AutoValue • Add @AutoValue to make objects value- typed using generated boilerplate codes
28. @AutoValue
30. AutoValue • Add @AutoValue to make objects value- typed using generated boilerplate codes • Add @AutoValue.Builder to create Builder class for your auto-value object
31. @AutoValue.Builder
33. AutoValue • Add @AutoValue to make objects value- typed using generated boilerplate codes • Add @AutoValue.Builder to create Builder class for your auto-value object • AutoValue Extension support for 
 Parcelable, Gson, Moshi, Cursor, and more..
34. Usage(auto-value-parcel) // root dependencies { classpath ‘com.neenbedankt.gradle.plugins:android-apt:1.8’ … } … // app dependencies { provided ‘com.google.auto.value:auto-value:1.3-rc2' // auto-value-parcel apt 'com.ryanharter.auto.value:auto-value-parcel:0.2.3-rc2' }
35. AutoValue Extension: auto-value-parcel
37. Learn more about AutoValue: • “A Deeper Look at AutoValue” - Ryan Harter
 http://ryanharter.com/blog/2016/04/08/autovalue-deep- dive/ • “AutoValue Extensions” - Ryan Harter
 http://ryanharter.com/blog/2016/05/16/autovalue- extensions/ • “AutoValue Extensions” - Jake Wharton
 http://jakewharton.com/auto-value-extensions-ny- android-meetup/
38. AutoValue shaunkawano fin.