[feat] Room Database Class 생성

.vs/ProjectSettings.json

@@ -0,0 +1,3 @@
+{
+  "CurrentProjectSetting": null
+}

.vs/VSWorkspaceState.json

@@ -0,0 +1,6 @@
+{
+  "ExpandedNodes": [
+    ""
+  ],
+  "PreviewInSolutionExplorer": false
+}

app/src/main/kotlin/kr/tooni/tooni/features/watch/favorites/db/FavoritesDatabase.kt

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+package kr.tooni.tooni.features.watch.favorites.db
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import kr.tooni.tooni.features.watch.favorites.Favorites
+import kr.tooni.tooni.watch.favorites.db.FavoritesDAO
+
+@Database(entities = [Favorites::class], version = 1)
+abstract class FavoritesDatabase : RoomDatabase() {
+
+    abstract val favoritesDAO : FavoritesDAO
+
+    companion object {
+        @Volatile
+        private var INSTANCE : FavoritesDatabase? = null
+        fun getInstance(context: Context) : FavoritesDatabase {
+            synchronized(this) {
+                var instance : FavoritesDatabase? = INSTANCE
+                if(instance == null) {
+                    instance = Room.databaseBuilder(
+                        context.applicationContext,
+                        FavoritesDatabase::class.java,
+                        "favorites_data_database"
+                    ).build()
+                }
+                return instance
+            }
+        }
+    }
+}