safelink.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Metadata / Edm / safelink.cs / 1305376 / safelink.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//---------------------------------------------------------------------using System; 
using System.Collections.Generic;
using System.Linq; 
using System.Text;
using System.Diagnostics;

namespace System.Data.Metadata.Edm 
{
    internal class SafeLink where TParent : class 
    { 
        private TParent _value;
        public TParent Value { get { return _value; } } 


        internal static IEnumerable BindChildren(TParent parent, Func> getLink, IEnumerable children)
        { 

            foreach (TChild child in children) 
            { 
                BindChild(parent, getLink, child);
            } 
            return children;
        }

        internal static TChild BindChild(TParent parent, Func> getLink, TChild child) 
        {
            SafeLink link = getLink(child); 
 
            Debug.Assert(link._value == null || link._value == parent, "don't try to hook up the same child to a different parent");
            // this is the good stuff.. 
            // only this method can actually make the link since _value is a private
            link._value = parent;

            return child; 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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