Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Workflow.Runtime/TimerEventSubscription.cs

@@ -0,0 +1,99 @@
+using System;
+using System.Workflow.Runtime.Hosting;
+
+namespace System.Workflow.Runtime
+{
+    /// <summary>
+    /// TimerEventSubscription
+    /// Class which represents a timer subscription which a running workflow
+    /// instance creates on timer service for Timer Notification.
+    /// </summary>
+    [Serializable]
+    [Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
+    public class TimerEventSubscription
+    {
+        #region Data
+        DateTime expiresAt;
+        Guid subscriptionId;
+        Guid workflowInstanceId;
+        IComparable queueName;
+
+        #endregion
+        /// <summary>
+        /// Specifies the absolute timeout value in UTC format, at which
+        /// workflow expects a notification from SchedulerService.
+        /// </summary>
+        public virtual DateTime ExpiresAt
+        {
+            get
+            {
+                return this.expiresAt;
+            }
+        }
+
+        //A Unique id for this subscription. It is needed because
+        //QueueName is not always guaranteed to be Unique.
+        //Needed in case of Multiple Subscription on Same Queue
+        public virtual Guid SubscriptionId
+        {
+            get
+            {
+                return this.subscriptionId;
+            }
+        }
+
+        public virtual IComparable QueueName
+        {
+            get
+            {
+                return this.queueName;
+            }
+            protected set
+            {
+                this.queueName = value;
+            }
+        }
+
+        public virtual Guid WorkflowInstanceId
+        {
+            get
+            {
+                return this.workflowInstanceId;
+            }
+        }
+
+
+        //Used only when providing specialized implementation.
+        protected TimerEventSubscription()
+        {
+
+        }
+
+        /// <summary>
+        /// Creates a TimerEventSubscription for workflow Instance identified by
+        /// workflowInstanceID.
+        /// </summary>
+        /// <param name="workflowInstanceId">WorkflowInstanceId for which this subscription is created.</param>
+        /// <param name="expiresAt"> Time at which timer event should fire.</param>
+        public TimerEventSubscription(Guid workflowInstanceId, DateTime expiresAt)
+            : this(Guid.NewGuid(), workflowInstanceId, expiresAt)
+        {
+
+        }
+
+        /// <summary>
+        /// Constructor to create TimerEventSubscription with user provided
+        /// value for timerid which will be SubscriptionId & QueueName of EventSubscription.
+        /// </summary>
+        /// <param name="timerId">SubscriptionId for this subscription, this will be same value as QueueName.</param>
+        /// <param name="workflowInstanceId">WorkflowInstanceId for which this subscription is created.</param>
+        /// <param name="expiresAt"> Time at which timer event should fire.</param>
+        public TimerEventSubscription(Guid timerId, Guid workflowInstanceId, DateTime expiresAt)
+        {
+            this.queueName = timerId;
+            this.workflowInstanceId = workflowInstanceId;
+            this.subscriptionId = timerId;
+            this.expiresAt = expiresAt;
+        }
+    }
+}