//---------------------------------------------------------------------
// <copyright file="ISchemaElementLookUpTable.cs" company="Microsoft">
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>
//
// @owner       jeffreed
// @backupOwner anpete
//---------------------------------------------------------------------
 
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
 
 
 
namespace System.Data.EntityModel.SchemaObjectModel
{
    /// <summary>
    /// Summary description for ISchemaElementLookUpTable.
    /// </summary>
    internal interface ISchemaElementLookUpTable<T>
    where T : SchemaElement
    {
        /// <summary>
        /// 
        /// </summary>
        int Count { get; }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        bool ContainsKey(string key);
        /// <summary>
        /// 
        /// </summary>
        T this[string key] { get; }
        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        IEnumerator<T> GetEnumerator();
 
        /// <summary>
        /// Look up a name case insensitively
        /// </summary>
        /// <param name="key">the key to look up</param>
        /// <returns>the element or null</returns>
        T LookUpEquivalentKey(string key);
 
   }
}