Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Runtime.DurableInstancing/System/Runtime/WorkflowNamespace.cs

@@ -0,0 +1,126 @@
+//----------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//----------------------------------------------------------------
+
+namespace System.Runtime
+{
+    using System.Xml.Linq;
+
+    [Fx.Tag.XamlVisible(false)]
+    static class WorkflowNamespace
+    {
+        const string baseNamespace = "urn:schemas-microsoft-com:System.Activities/4.0/properties";
+        static readonly XNamespace workflowNamespace = XNamespace.Get(baseNamespace);
+        static readonly XNamespace variablesNamespace = XNamespace.Get(baseNamespace + "/variables");
+        static readonly XNamespace outputNamespace = XNamespace.Get(baseNamespace + "/output");
+
+        static XName workflowHostType;
+        static XName status;
+        static XName bookmarks;
+        static XName lastUpdate;
+        static XName exception;
+        static XName workflow;
+        static XName keyProvider;
+
+        public static XNamespace VariablesPath
+        {
+            get
+            {
+                return variablesNamespace;
+            }
+        }
+
+        public static XNamespace OutputPath
+        {
+            get
+            {
+                return outputNamespace;
+            }
+        }
+
+        public static XName WorkflowHostType
+        {
+            get
+            {
+                if (workflowHostType == null)
+                {
+                    workflowHostType = workflowNamespace.GetName("WorkflowHostType");
+                }
+
+                return workflowHostType;
+            }
+        }
+
+        public static XName Status
+        {
+            get
+            {
+                if (status == null)
+                {
+                    status = workflowNamespace.GetName("Status");
+                }
+                return status;
+            }
+        }
+
+        public static XName Bookmarks
+        {
+            get
+            {
+                if (bookmarks == null)
+                {
+                    bookmarks = workflowNamespace.GetName("Bookmarks");
+                }
+                return bookmarks;
+            }
+        }
+
+        public static XName LastUpdate
+        {
+            get
+            {
+                if (lastUpdate == null)
+                {
+                    lastUpdate = workflowNamespace.GetName("LastUpdate");
+                }
+                return lastUpdate;
+            }
+        }
+
+        public static XName Exception
+        {
+            get
+            {
+                if (exception == null)
+                {
+                    exception = workflowNamespace.GetName("Exception");
+                }
+                return exception;
+            }
+        }
+
+        public static XName Workflow
+        {
+            get
+            {
+                if (workflow == null)
+                {
+                    workflow = workflowNamespace.GetName("Workflow");
+                }
+                return workflow;
+            }
+        }
+
+        public static XName KeyProvider
+        {
+            get
+            {
+                if (keyProvider == null)
+                {
+                    keyProvider = workflowNamespace.GetName("KeyProvider");
+                }
+                return keyProvider;
+            }
+        }
+    }
+}