TransactionFlowAttribute.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / TransactionFlowAttribute.cs / 1 / TransactionFlowAttribute.cs
                        

                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.ServiceModel 
{
    using System.Collections.Generic; 
    using System.ServiceModel.Dispatcher; 
    using System.ServiceModel.Description;
    using System.Reflection; 
    using System.Runtime.Serialization;
    using System.ServiceModel.Channels;

    [AttributeUsage(ServiceModelAttributeTargets.OperationBehavior)] 
    public sealed class TransactionFlowAttribute : Attribute, IOperationBehavior
    { 
        TransactionFlowOption transactions; 

        public TransactionFlowAttribute(TransactionFlowOption transactions) 
        {
            TransactionFlowBindingElement.ValidateOption(transactions);
            this.transactions= transactions;
        } 

 
        public TransactionFlowOption Transactions 
        {
            get 
            {
                return this.transactions;
            }
        } 

        internal static void OverrideFlow(BindingParameterCollection parameters, string action, 
                                          MessageDirection direction, TransactionFlowOption option) 
        {
            Dictionary dictionary = EnsureDictionary(parameters); 
            DirectionalAction da = new DirectionalAction(direction, action);

            if (dictionary.ContainsKey(da))
            { 
                dictionary[da] = option;
            } 
            else 
            {
                dictionary.Add(da, option); 
            }
        }

        static Dictionary EnsureDictionary(BindingParameterCollection parameters) 
        {
            Dictionary dictionary = 
                parameters.Find >(); 
            if (dictionary == null)
            { 
                dictionary = new Dictionary();
                parameters.Add(dictionary);
            }
            return dictionary; 
        }
 
        void ApplyBehavior(OperationDescription description, BindingParameterCollection parameters) 
        {
            Dictionary dictionary = EnsureDictionary(parameters); 
            dictionary.Add(new DirectionalAction(description.Messages[0].Direction, description.Messages[0].Action),
                           this.transactions);
        }
 
        void IOperationBehavior.Validate(OperationDescription description)
        { 
        } 

        void IOperationBehavior.ApplyDispatchBehavior(OperationDescription description, DispatchOperation dispatch) 
        {
        }

        void IOperationBehavior.AddBindingParameters(OperationDescription description, BindingParameterCollection parameters) 
        {
            if (parameters == null) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("parameters"); 
            ApplyBehavior(description, parameters);
        } 

        void IOperationBehavior.ApplyClientBehavior(OperationDescription description, ClientOperation proxy)
        {
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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