Unit Of Work Pattern(ORM Transaction Controller) Implementation Sample

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1. Transaction Unit Entity

 public class TransactionUnitBase    {        public ActionType ThisActionType { get; set; }    }    public class TransactionUnit<TIn,TOut> : TransactionUnitBase    {        public Func<TIn,TOut> UnitAction { get; set; }        public TIn ActionParam { get; set; }    }    public class TransactionUnit<TIn> : TransactionUnitBase    {        public Action<TIn> UnitAction { get; set; }        public TIn ActionParam { get; set; }    }    public class TransactionUnitNoParam<TOut> : TransactionUnitBase    {        public Func<TOut> UnitAction { get; set; }    }

2.ActionType

 public enum ActionType    {        BothParamAndReturn,        ParamOnly,        ReturnOnly    }

3.TransactionUnit Manager

 public class TransactionUnitManager : ITransactionUnit    {        private readonly List<dynamic> _currentWorks;        public TransactionUnitManager()        {            _currentWorks = new List<dynamic>();        }        public ITransactionUnit AddWorkUnit<TParam, TReturn>(Func<TParam, TReturn> work,TParam pamameter)        {            var unitOfWork = new TransactionUnit<TParam,TReturn>                {                    ThisActionType = ActionType.BothParamAndReturn,                    ActionParam = pamameter,                    UnitAction = work                };            _currentWorks.Add(unitOfWork);            return this;        }        public ITransactionUnit AddWorkUnit<TParam>(Action<TParam> work,TParam parameter)        {            var unitOfWork = new TransactionUnit<TParam>            {                ThisActionType = ActionType.ParamOnly,                ActionParam = parameter,                UnitAction = work            };            _currentWorks.Add(unitOfWork);            return this;        }        public ITransactionUnit AddWorkUnit<TReturn>(Func<TReturn> work)        {            var unitOfWork = new TransactionUnitNoParam<TReturn>            {                ThisActionType = ActionType.ReturnOnly,                UnitAction = work            };            _currentWorks.Add(unitOfWork);            return this;        }        public void CommitTransaction()        {            try            {                using (var scope = new TransactionScope(TransactionScopeOption.Required, TimeSpan.FromMinutes(10)))                {                    foreach (var t in _currentWorks)                    {                        if (t.ThisActionType == ActionType.BothParamAndReturn)                        {                            t.UnitAction(t.ActionParam);                        }                        else if (t.ThisActionType == ActionType.ParamOnly)                        {                            t.UnitAction(t.ActionParam);                        }                        else if (t.ThisActionType == ActionType.ReturnOnly)                        {                            t.UnitAction();                        }                    }                    scope.Complete();                }            }            finally            {                _currentWorks.Clear();            }        }    }