66.5 Adding the Room Database

The last task before adding the repository to the project is to implement the Room Database instance. Add a new class to the project named ProductRoomDatabase, this time with the Kind menu set to Class and the Abstract option enabled in the Modifiers section.

Figure 66-2

Once the file has been generated, modify it as follows using the steps outlined in the “The Android Room Persistence Library” chapter:

package com.ebookfrenzy.roomdemo;

 

import android.content.Context;

 

import androidx.room.Database;

import androidx.room.Room;

import androidx.room.RoomDatabase;

 

@Database(entities = {Product.class}, version = 1)

public abstract class ProductRoomDatabase extends RoomDatabase {

 

    public abstract ProductDao productDao();

    private static ProductRoomDatabase INSTANCE;

 

    static ProductRoomDatabase...