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//---------------------------------------------------------------------
// <copyright file="AssociationSet.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//
// @owner Microsoft
// @backupOwner Microsoft
//---------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
namespace System.Data.Metadata.Edm
{
/// <summary>
/// Class for representing an Association set
/// </summary>
public sealed class AssociationSet : RelationshipSet
{
#region Constructors
/// <summary>
/// Initializes a new instance of AssocationSet with the given name and the association type
/// </summary>
/// <param name="name">The name of the Assocation set</param>
/// <param name="associationType">The association type of the entities that this associationship set type contains</param>
internal AssociationSet(string name, AssociationType associationType)
: base(name, null, null, null, associationType)
{
}
#endregion
#region Fields
private readonly ReadOnlyMetadataCollection<AssociationSetEnd> _associationSetEnds =
new ReadOnlyMetadataCollection<AssociationSetEnd>(new MetadataCollection<AssociationSetEnd>());
#endregion
#region Properties
/// <summary>
/// Returns the association type associated with this association set
/// </summary>
public new AssociationType ElementType
{
get
{
return (AssociationType)base.ElementType;
}
}
/// <summary>
/// Returns the ends of the association set
/// </summary>
[MetadataProperty(BuiltInTypeKind.AssociationSetEnd, true)]
public ReadOnlyMetadataCollection<AssociationSetEnd> AssociationSetEnds
{
get
{
return _associationSetEnds;
}
}
/// <summary>
/// Returns the kind of the type
/// </summary>
public override BuiltInTypeKind BuiltInTypeKind { get { return BuiltInTypeKind.AssociationSet; } }
#endregion
#region Methods
/// <summary>
/// Sets this item to be readonly, once this is set, the item will never be writable again.
/// </summary>
internal override void SetReadOnly()
{
if (!this.IsReadOnly)
{
base.SetReadOnly();
this.AssociationSetEnds.Source.SetReadOnly();
}
}
/// <summary>
/// Adds the given end to the collection of ends
/// </summary>
/// <param name="associationSetEnd"></param>
internal void AddAssociationSetEnd(AssociationSetEnd associationSetEnd)
{
this.AssociationSetEnds.Source.Add(associationSetEnd);
}
#endregion
}
}
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