Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Data.Entity/System/Data/Metadata/Edm/AssociationSetEnd.cs

@@ -0,0 +1,169 @@
+//---------------------------------------------------------------------
+// <copyright file="AssociationSetEnd.cs" company="Microsoft">
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//
+// @owner       [....]
+// @backupOwner [....]
+//---------------------------------------------------------------------
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Text;
+
+
+namespace System.Data.Metadata.Edm
+{
+    /// <summary>
+    /// Class representing a AssociationSet End
+    /// </summary>
+    public sealed class AssociationSetEnd : MetadataItem
+    {
+        #region Constructors
+        /// <summary>
+        /// Initializes a new instance of AssocationSetEnd
+        /// </summary>
+        /// <param name="entitySet">Entity set that this end refers to</param>
+        /// <param name="parentSet">The association set which this belongs to</param>
+        /// <param name="endMember">The end member of the association set which this is an instance of</param>
+        /// <exception cref="System.ArgumentNullException">Thrown if either the role,entitySet, parentSet or endMember arguments are null </exception>
+        internal AssociationSetEnd(EntitySet entitySet, AssociationSet parentSet, AssociationEndMember endMember)
+        {
+            _entitySet = EntityUtil.GenericCheckArgumentNull(entitySet, "entitySet");
+            _parentSet = EntityUtil.GenericCheckArgumentNull(parentSet, "parentSet");
+            _endMember = EntityUtil.GenericCheckArgumentNull(endMember, "endMember");
+        }
+        #endregion
+
+        #region Fields
+        private readonly EntitySet _entitySet;
+        private readonly AssociationSet _parentSet;
+        private readonly AssociationEndMember _endMember;
+        #endregion
+
+        #region Properties
+        /// <summary>
+        /// Returns the kind of the type
+        /// </summary>
+        public override BuiltInTypeKind BuiltInTypeKind { get { return BuiltInTypeKind.AssociationSetEnd; } }
+
+        /// <summary>
+        /// The parent association set for this AssociationSetEnd.
+        /// </summary>
+        /// <exception cref="System.ArgumentNullException">Thrown if the value passed in for the setter is null </exception>
+        /// <exception cref="System.InvalidOperationException">Thrown if Setter is called when the AssociationSetEnd instance is in ReadOnly state</exception>
+        [MetadataProperty(BuiltInTypeKind.AssociationSet, false)]
+        public AssociationSet ParentAssociationSet
+        {
+            get
+            {
+                return _parentSet;
+            }
+        }
+
+        /// <summary>
+        /// The EndMember which this AssociationSetEnd corresponds to.
+        /// </summary>
+        /// <exception cref="System.ArgumentNullException">Thrown if the value passed in for the setter is null </exception>
+        /// <exception cref="System.InvalidOperationException">Thrown if Setter is called when the AssociationSetEnd instance is in ReadOnly state</exception>
+        [MetadataProperty(BuiltInTypeKind.AssociationEndMember, false)]
+        public AssociationEndMember CorrespondingAssociationEndMember
+        {
+            get
+            {
+                return _endMember;
+            }
+        }
+
+        /// <summary>
+        /// Name of the end
+        /// </summary>
+        [MetadataProperty(PrimitiveTypeKind.String, false)]
+        public string Name
+        {
+            get
+            {
+                return CorrespondingAssociationEndMember.Name;
+            }
+        }
+
+        /// <summary>
+        /// Name of the end role
+        /// </summary>
+        /// <exception cref="System.ArgumentNullException">Thrown if the value passed in for the setter is null </exception>
+        /// <exception cref="System.InvalidOperationException">Thrown if Setter is called when the AssociationSetEnd instance is in ReadOnly state</exception>
+        [MetadataProperty(PrimitiveTypeKind.String, false)]
+        [Obsolete("This property is going away, please use the Name property instead")]
+        public string Role
+        {
+            get
+            {
+                return Name;
+            }
+        }
+
+        /// <summary>
+        /// Returns the entity set referred by this end role
+        /// </summary>
+        [MetadataProperty(BuiltInTypeKind.EntitySet, false)]
+        public EntitySet EntitySet
+        {
+            get
+            {
+                return _entitySet;
+            }
+        }
+
+        /// <summary>
+        /// Gets the identity of this item
+        /// </summary>
+        internal override string Identity
+        {
+            get
+            {
+                return this.Name;
+            }
+        }
+        #endregion
+
+        #region Methods
+        /// <summary>
+        /// Overriding System.Object.ToString to provide better String representation 
+        /// for this type.
+        /// </summary>
+        public override string ToString()
+        {
+            return Name;
+        }
+
+        /// <summary>
+        /// Sets this item to be readonly, once this is set, the item will never be writable again.
+        /// </summary>
+        internal override void SetReadOnly()
+        {
+            if (!IsReadOnly)
+            {
+                base.SetReadOnly();
+
+                AssociationSet parentAssociationSet = ParentAssociationSet;
+                if (parentAssociationSet != null)
+                {
+                    parentAssociationSet.SetReadOnly();
+                }
+
+                AssociationEndMember endMember = CorrespondingAssociationEndMember;
+                if (endMember != null)
+                {
+                    endMember.SetReadOnly();
+                }
+
+                EntitySet entitySet = EntitySet;
+                if (entitySet != null)
+                {
+                    entitySet.SetReadOnly();
+                }
+            }
+        }
+        #endregion
+    }
+}