Android: Reminder concept with Alarm Manager

I tried to make reminder application for Android, followed tutorial from this website Set Notification for Specific Date. Basically it used Alarm Manager to create a reminder.

This code used to call alarm manager and show notification on specific date.

reminderClient.setAlarmForNotification(calendar, uniqueid, interval);

I save all of the reminder in SQLite Database. So when this code (above) called, new record will be inserted to database and when notification show up, that record will be deleted.

The problem is whenever device restart, alarm manager stopped.

So I create a new BroadcastReceiver that receive event when device turned on.

<application ...  >

    <receiver android:name=".ReminderReceiver" >
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
            <uses-permission android:name="android.permission.WAKE_LOCK" />
        </intent-filter>
    </receiver>
</application>

public class ReminderReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        //do stuff
    }

}

Is it OK to get all record from database, and call setAlarmForNotification again inside OnReceive like this?

public class ReminderReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        List<MyReminder> reminders = database.getAllReminder();
        Calendar cal = Calendar.getInstance();

        for (int i=0; i<reminders.size(); i++) {
            cal.setTime(parseStringDateToDate(reminders.get(i).getDateTime());

            reminderClient.setAlarmForNotification(
                cal, 
                reminders.get(i).getUniqueID(), 
                reminders.get(i).getInterval()
            );
        }
    }

}

Or is there a better way?