ATMLUtilitiesLibrary.PropertyManager.GetInstance C# (CSharp) 메소드

        public static PropertyManager GetInstance()
        {
            if (_instance == null)
            {
                lock (SYNC_ROOT)
                {
                    if (_instance == null)
                    {
                        _instance = new PropertyManager();
                    }
                }
            }
            return _instance;
        }