--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Source/Aspects/NotNullAttribute.cs	Thu Mar 27 21:46:09 2014 +0400
@@ -0,0 +1,34 @@
+using System;
+
+using BLToolkit.TypeBuilder.Builders;
+
+namespace BLToolkit.Aspects
+{
+	/// <summary>
+	/// http://www.bltoolkit.net/Doc/Aspects/index.htm
+	/// </summary>
+	[AttributeUsage(AttributeTargets.Parameter)]
+	public sealed class NotNullAttribute : AbstractTypeBuilderAttribute
+	{
+		public NotNullAttribute()
+		{
+		}
+
+		public NotNullAttribute(string message)
+		{
+			_message = message;
+		}
+
+		private string _message;
+		public  string  Message
+		{
+			get { return _message;  }
+			set { _message = value; }
+		}
+
+		public override IAbstractTypeBuilder TypeBuilder
+		{
+			get { return new Builders.NotNullAspectBuilder(_message); }
+		}
+	}
+}