greenDAO2ObjectBox

Links
Sample code
- https://github.com/kaelaela/greenDAO2ObjectBox

ObjectBox press release
- http://greenrobot.org/announcement/introducing-objectbox-beta/

ObjectBox repo
- https://github.com/greenrobot/ObjectBox

Transcript

1. greenDao2ObjectBox @kaelaela(Yuichi Maekawa) Work @ CyberAgent Twitter : kaelaela31 Github : kaelaela
2. Agenda • What is greenDAO and ObjectBox • How to convert greenDAO to ObjectBox
3. What is greenDAO and ObjectBox • Made by greenrobot • SQLite database • ORM • Based on code generation
4. • Since 2011 • ~ v2 :Need to make yourself DAOgenerator • v3 ~ : Enable annotation • Latest version is v3.2.1
5. • Two Important concept ◦ Schema: create db and make all tables and entities ◦ Entity: add properties and relations to POJO • Daos and entiries are generated by DaoGenerator
6. v2 architecture DaoGenerator: generated class. Do not white code. DaoMaster: generated class. Use to get settion. DaoSession: generated class. Use to get dao. EntityDao: generated class. CRUD from database. Entity: generated entity(It has getter/setter. Editable)
7. v3 architecture DaoGenerator: generated class. Do not white code. DaoMaster: generated class. Use to get settion. DaoSession: generated class. Use to get dao. EntityDao: generated class. CRUD from database. Entity: your entity. Annotate this. And generate code into this.
8. • A new database based on greenDAO • Do not use SQLite • Pretty fast • Latest version is v0.9.7(beta)
9. ObjectBox • Important concept ◦ Object(POJO) ◦ Box ◦ BoxStore(like db) Memo Box Memo object
10. ObjectBox • Important concept ◦ Object(POJO) ◦ Box ◦ BoxStore(like db) Memo Box
11. ObjectBox • Important concept ◦ Object(POJO) ◦ Box ◦ BoxStore(like db) Memo Box some Box some Box some Box BoxStore
12. v0.9.7(beta) architecture • MyObjectBox: build BoxStore • BoxStore: provide box for your object. Likes database. • default.json: crucial ids here. Do not touch. • Memo: your entity. Generated CRUD methods into this. • Memo_: Property class. It is used to access member (ex. Memo_.id)
13. interface box.put(memo); //insert, update box.remove(memo); box.getAll(); box.query().equal(Memo_.content, "test").build().find();
14. Convert to ObjectBox(from v3) http://greenrobot.org/objectbox/documentation/introduction/ > Have an app with greenDAO? DaoCompat is for you! DaoCompat is an compatibility layer that gives you an greenDAO like API for ObjectBox. http://greenrobot.org/news/objectbox-presentation-thank-you/ > For existing apps using greenDAO Easy switch to ObjectBox
15. Convert to ObjectBox(from v3) http://greenrobot.org/objectbox/documentation/introduction/ > Have an app with greenDAO? DaoCompat is for you! DaoCompat is an compatibility layer that gives you an greenDAO like API for ObjectBox. http://greenrobot.org/news/objectbox-presentation-thank-you/ > For existing apps using greenDAO Easy switch to ObjectBox
16. Good news. Let’s try it.
17. Build setting buildscript { repositories { maven { url "http://objectbox.net/beta-repo/" } } } dependencies { classpath 'io.objectbox:objectbox-gradle-plugin:0.9.7' } allprojects { repositories { maven { url "http://objectbox.net/beta-repo/" } } }
18. Build setting apply plugin: 'io.objectbox' dependencies { compile 'org.greenrobot:greendao:3.2.0' compile 'io.objectbox:objectbox-android:0.9.7' compile 'io.objectbox:objectbox-daocompat:0.9.7' } objectbox { daoCompat true }
19. Replace annotations • File paths are chended org.greenrobot.greendao.annotation > io.objectbox.annotation • Relpace @ToOne @ToMany annotations with @Relation
20. Initialize MyObjectBox in Application @Override public void onCreate() { super.onCreate(); boxStore = MyObjectBox.builder().androidContext(this).build(); //use to old interface daoSession = new DaoSession(boxStore); } public BoxStore getBoxStore() { return boxStore; } public BoxStore getDaoSession() { return daoSession; }
21. That’s all. Let’s build!!
23. It is not work yet well. And source code is not public Wait for v1.
24. Sample code https://github.com/kaelaela/greenDAO2ObjectBox
25. See you next version released!