--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Source/Mapping/NullableAttribute.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,35 @@
+using System;
+
+namespace BLToolkit.Mapping
+{
+	[AttributeUsage(
+		AttributeTargets.Property | AttributeTargets.Field |
+		AttributeTargets.Class | AttributeTargets.Interface)]
+	public class NullableAttribute : Attribute
+	{
+		public NullableAttribute()
+		{
+			IsNullable = true;
+		}
+
+		public NullableAttribute(bool isNullable)
+		{
+			IsNullable = isNullable;
+		}
+
+		public NullableAttribute(Type type)
+		{
+			Type       = type;
+			IsNullable = true;
+		}
+
+		public NullableAttribute(Type type, bool isNullable)
+		{
+			Type       = type;
+			IsNullable = isNullable;
+		}
+
+		public bool IsNullable { get; set; }
+		public Type Type       { get; private set; }
+	}
+}