CODEWITHSUNDEEP
androidandroid-room
moshen pejam
moshen pejam

Reputation: 53

Room database in a multi module project

In my project, I have an app module with the 'app' name and an Android Library called 'app_lib'. I want to have a database that both work with this database.

The question is, how can I do this?

I've done my job so far, I've made my models and Dao's classes in the 'app_lib', and I've called in the abstract class database in the 'app' and created tables in this way. Now, the question is, how do you do in the 'app_lib' Call the queries?

Upvotes: 5

Views: 4559

Answers (1)

Zohaib Amir
Zohaib Amir

Reputation: 3562

When creating AppDatabase:

AppDatabase db = Room.databaseBuilder(getApplicationContext(),
        AppDatabase.class, "database-name").build();

Second parameter is the name of the database, if you give same name in both modules, it should use same database, provided that they are part of the same application.

You should not import models and dao from your app module. Your app module should be dependent on the library not the other way around.

However, if you don't want to copy over same class files to both modules, you could either move your room classes to the library and import those classes from lib module. If you don't want those classes to be part of lib module, you can create another module that handles database operations and then use classes from that module in both the library module and the app module.

Upvotes: 7

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