private SQLiteDatabase createOrOpenDatabase(boolean force) throws SQLiteAssetException { SQLiteDatabase db = returnDatabase(); if (db != null) { // database already exists if (force) { Log.w(TAG, "forcing database upgrade!"); copyDatabaseFromAssets(); db = returnDatabase(); } return db; } else { // database does not exist, copy it from assets and return it copyDatabaseFromAssets(); db = returnDatabase(); return db; } }