Mark EnsureNotLocked() extension [Obsolete]

Author: SergeiPavlov

Orm/Xtensive.Orm/Core/Extensions/LockableExtensions.cs

@@ -0,0 +1,29 @@
+// Copyright (C) 2003-2010 Xtensive LLC.
+// All rights reserved.
+// For conditions of distribution and use, see license.
+// Created by: Alex Yakunin
+// Created:    2008.07.04
+
+using System;
+
+namespace Xtensive.Core
+{
+  /// <summary>
+  /// <see cref="ILockable"/> related extension methods.
+  /// </summary>
+  public static class LockableExtensions
+  {
+    /// <summary>
+    /// Ensures <paramref name="lockable"/> is not locked (see <see cref="ILockable.Lock()"/>) yet.
+    /// </summary>
+    /// <param name="lockable">Lockable object to check.</param>
+    /// <exception cref="InstanceIsLockedException">Specified instance is locked.</exception>
+    [Obsolete("Use LockableBase.EnsureNotLocked method instead.")]
+    public static void EnsureNotLocked(this ILockable lockable)
+    {
+      ArgumentValidator.EnsureArgumentNotNull(lockable, "lockable");
+      if (lockable.IsLocked)
+        throw new InstanceIsLockedException(Strings.ExInstanceIsLocked);
+    }
+  }
+}