Add MEF for .NET 4

[mono.git] / mcs / class / System.ComponentModel.Composition / src / ComponentModel / System / ComponentModel / Composition / CreationPolicy.cs

diff --git a/mcs/class/System.ComponentModel.Composition/src/ComponentModel/System/ComponentModel/Composition/CreationPolicy.cs b/mcs/class/System.ComponentModel.Composition/src/ComponentModel/System/ComponentModel/Composition/CreationPolicy.cs
new file mode 100644 (file)
index 0000000..5a8d4cb
--- /dev/null
+++ b/mcs/class/System.ComponentModel.Composition/src/ComponentModel/System/ComponentModel/Composition/CreationPolicy.cs
@@ -0,0 +1,36 @@
+// -----------------------------------------------------------------------\r
+// Copyright (c) Microsoft Corporation.  All rights reserved.\r
+// -----------------------------------------------------------------------\r
+using System;\r
+using System.ComponentModel.Composition.Hosting;\r
+using System.ComponentModel.Composition.Primitives;\r
+\r
+namespace System.ComponentModel.Composition\r
+{\r
+    /// <summary>\r
+    /// Option placed on a type that controls when the <see cref="CompositionContainer"/> creates \r
+    /// a new instance of a <see cref="ComposablePart"/>.\r
+    /// </summary>\r
+    public enum CreationPolicy : int\r
+    {\r
+        /// <summary>\r
+        /// Let the <see cref="CompositionContainer"/> choose the most appropriate <see cref="CreationPolicy"/>\r
+        /// for the part given the current context. This is the default <see cref="CreationPolicy"/>, with\r
+        /// the <see cref="CompositionContainer"/> choosing <see cref="CreationPolicy.Shared"/> by default\r
+        /// unless the <see cref="ComposablePart"/> or importer requests <see cref="CreationPolicy.NonShared"/>.\r
+        /// </summary>\r
+        Any = 0,\r
+\r
+        /// <summary>\r
+        /// A single shared instance of the associated <see cref="ComposablePart"/> will be created\r
+        /// by the <see cref="CompositionContainer"/> and shared by all requestors.\r
+        /// </summary>\r
+        Shared = 1,\r
+\r
+        /// <summary>\r
+        /// A new non-shared instance of the associated <see cref="ComposablePart"/> will be created\r
+        /// by the <see cref="CompositionContainer"/> for every requestor.\r
+        /// </summary>\r
+        NonShared = 2,\r
+    }\r
+}\r