// Copyright (C) 2003-2010 Xtensive LLC.

// All rights reserved.

// For conditions of distribution and use, see license.

// Created by: Alexey Kochetov

// Created:    2008.07.03



using System;

using Xtensive.Core.Collections;

using Xtensive.Core.Internals.DocTemplates;

using Xtensive.Storage.Rse.Providers.Compilable;



namespace Xtensive.Storage.Rse.Providers.Compilable

{

  /// <summary>

  /// Aliases the <see cref="UnaryProvider.Source"/> with specified <see cref="Alias"/>.

  /// </summary>

  [Serializable]

  public sealed class AliasProvider : UnaryProvider

  {

    /// <summary>

    /// Alias of the result.

    /// </summary>

    public string Alias { get; private set; }



    /// <inheritdoc/>

    protected override RecordSetHeader BuildHeader()

    {

      return base.BuildHeader().Alias(Alias);

    }



    /// <inheritdoc/>

    public override string ParametersToString()

    {

      return Alias;

    }





    // Constructors



    /// <summary>

    ///   <see cref="ClassDocTemplate.Ctor" copy="true"/>

    /// </summary>

    /// <param name="source">The <see cref="UnaryProvider.Source"/> property value.</param>

    /// <param name="alias">The <see cref="Alias"/> property value.</param>

    public AliasProvider(CompilableProvider source, string alias)

      : base(ProviderType.Alias, source)

    {

      Alias = alias;

    }

  }

}