kiwixRoomDatabase created

core/src/main/java/org/kiwix/kiwixmobile/core/data/local/KiwixRoomDatabase.kt

@@ -0,0 +1,43 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2022 Kiwix <android.kiwix.org>
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package org.kiwix.kiwixmobile.core.data.local
+
+import android.content.Context
+import androidx.room.Room
+import androidx.room.RoomDatabase
+
+abstract class KiwixRoomDatabase : RoomDatabase() {
+
+  companion object {
+    private var db: KiwixRoomDatabase? = null
+    fun getInstance(context: Context): KiwixRoomDatabase {
+      return db ?: synchronized(KiwixRoomDatabase::class) {
+        return@getInstance db
+          ?: Room.databaseBuilder(context, KiwixRoomDatabase::class.java, "KiwixRoom.db")
+            // We have already database name called kiwix.db in order to avoid complexity we named as
+            // kiwixRoom.db
+            .build()
+      }
+    }
+
+    fun destroyInstance() {
+      db = null
+    }
+  }
+}