LoadWorkflowByInstanceKeyCommand.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.Activities / System / Activities / DurableInstancing / LoadWorkflowByInstanceKeyCommand.cs / 1305376 / LoadWorkflowByInstanceKeyCommand.cs
                        

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

namespace System.Activities.DurableInstancing 
{
    using System; 
    using System.Collections.Generic; 
    using System.Collections.ObjectModel;
    using System.Runtime; 
    using System.Runtime.DurableInstancing;
    using System.Xml.Linq;

    [Fx.Tag.XamlVisible(false)] 
    public sealed class LoadWorkflowByInstanceKeyCommand : InstancePersistenceCommand
    { 
        Dictionary> keysToAssociate; 

        public LoadWorkflowByInstanceKeyCommand() 
            : base(InstancePersistence.ActivitiesCommandNamespace.GetName("LoadWorkflowByInstanceKey"))
        {
        }
 
        public bool AcceptUninitializedInstance { get; set; }
 
        public Guid LookupInstanceKey { get; set; } 
        public Guid AssociateInstanceKeyToInstanceId { get; set; }
 
        public IDictionary> InstanceKeysToAssociate
        {
            get
            { 
                if (this.keysToAssociate == null)
                { 
                    this.keysToAssociate = new Dictionary>(); 
                }
                return this.keysToAssociate; 
            }
        }

        protected internal override bool IsTransactionEnlistmentOptional 
        {
            get 
            { 
                return (this.keysToAssociate == null || this.keysToAssociate.Count == 0) && AssociateInstanceKeyToInstanceId == Guid.Empty;
            } 
        }

        protected internal override bool AutomaticallyAcquiringLock
        { 
            get
            { 
                return true; 
            }
        } 

        protected internal override void Validate(InstanceView view)
        {
            if (!view.IsBoundToInstanceOwner) 
            {
                throw FxTrace.Exception.AsError(new InvalidOperationException(SRCore.OwnerRequired)); 
            } 
            if (view.IsBoundToInstance)
            { 
                throw FxTrace.Exception.AsError(new InvalidOperationException(SRCore.AlreadyBoundToInstance));
            }

            if (LookupInstanceKey == Guid.Empty) 
            {
                throw FxTrace.Exception.AsError(new InvalidOperationException(SRCore.LoadOpKeyMustBeValid)); 
            } 

            if (AssociateInstanceKeyToInstanceId == Guid.Empty) 
            {
                if (InstanceKeysToAssociate.ContainsKey(LookupInstanceKey))
                {
                    throw FxTrace.Exception.AsError(new InvalidOperationException(SRCore.LoadOpAssociateKeysCannotContainLookupKey)); 
                }
            } 
            else 
            {
                if (!AcceptUninitializedInstance) 
                {
                    throw FxTrace.Exception.AsError(new InvalidOperationException(SRCore.LoadOpFreeKeyRequiresAcceptUninitialized));
                }
            } 

            if (this.keysToAssociate != null) 
            { 
                foreach (KeyValuePair> key in this.keysToAssociate)
                { 
                    InstancePersistence.ValidatePropertyBag(key.Value);
                }
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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