Replace module interfaces with objects

Change-Id: Ieab7533120e7b8d5a770963e37b9db405e229630

app/src/main/java/com/google/samples/apps/nowinandroid/di/DaosModule.kt

@@ -28,26 +28,24 @@ import dagger.hilt.components.SingletonComponent
 
 @Module
 @InstallIn(SingletonComponent::class)
-interface DaosModule {
+object DaosModule {
-    companion object {
+    @Provides
-        @Provides
+    fun providesAuthorDao(
-        fun providesAuthorDao(
+        database: NiADatabase,
-            database: NiADatabase,
+    ): AuthorDao = database.authorDao()
-        ): AuthorDao = database.authorDao()
 
-        @Provides
+    @Provides
-        fun providesTopicsDao(
+    fun providesTopicsDao(
-            database: NiADatabase,
+        database: NiADatabase,
-        ): TopicDao = database.topicDao()
+    ): TopicDao = database.topicDao()
 
-        @Provides
+    @Provides
-        fun providesEpisodeDao(
+    fun providesEpisodeDao(
-            database: NiADatabase,
+        database: NiADatabase,
-        ): EpisodeDao = database.episodeDao()
+    ): EpisodeDao = database.episodeDao()
 
-        @Provides
+    @Provides
-        fun providesNewsResourceDao(
+    fun providesNewsResourceDao(
-            database: NiADatabase,
+        database: NiADatabase,
-        ): NewsResourceDao = database.newsResourceDao()
+    ): NewsResourceDao = database.newsResourceDao()
-    }
 }

app/src/main/java/com/google/samples/apps/nowinandroid/di/DatabaseModule.kt

@@ -28,16 +28,14 @@ import javax.inject.Singleton
 
 @Module
 @InstallIn(SingletonComponent::class)
-interface DatabaseModule {
+object DatabaseModule {
-    companion object {
+    @Provides
-        @Provides
+    @Singleton
-        @Singleton
+    fun providesNiADatabase(
-        fun providesNiADatabase(
+        @ApplicationContext context: Context,
-            @ApplicationContext context: Context,
+    ): NiADatabase = Room.databaseBuilder(
-        ): NiADatabase = Room.databaseBuilder(
+        context,
-            context,
+        NiADatabase::class.java,
-            NiADatabase::class.java,
+        "nia-database"
-            "nia-database"
+    ).build()
-        ).build()
-    }
 }