File: System\Data\Metadata\Edm\MetadataItem_Static.cs
Project: ndp\fx\src\DataEntity\System.Data.Entity.csproj (System.Data.Entity)
//---------------------------------------------------------------------
// <copyright file="MetadataItem_Static.cs" company="Microsoft">
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>
//
// @owner       Microsoft
// @backupOwner Microsoft
//---------------------------------------------------------------------
using System;
using System.Data.Common;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Text;
using System.Xml.Serialization;
using System.Xml.Schema;
using System.Xml;
 
namespace System.Data.Metadata.Edm
{
    /// <summary>
    /// Represents the base item class for all the metadata
    /// </summary>
    public abstract partial class MetadataItem
    {
        #region Constructors
        /// <summary>
        /// Static Constructor which initializes all the built in types and primitive types
        /// </summary>
        static MetadataItem()
        {
            ////////////////////////////////////////////////////////////////////////////////////////////////
            // Bootstrapping the builtin types
            ////////////////////////////////////////////////////////////////////////////////////////////////
            _builtInTypes[(int)BuiltInTypeKind.AssociationEndMember] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.AssociationSet] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.AssociationSetEnd] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.AssociationType] = new ComplexType(); 
            _builtInTypes[(int)BuiltInTypeKind.AssociationType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.CollectionKind] = new EnumType();
            _builtInTypes[(int)BuiltInTypeKind.CollectionType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.ComplexType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.Documentation] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.OperationAction] = new EnumType();
            _builtInTypes[(int)BuiltInTypeKind.EdmType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EntityContainer] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EntitySet] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EntityType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EntitySetBase] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EntityTypeBase] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EnumType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EnumMember] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.Facet] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EdmFunction] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.FunctionParameter] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.GlobalItem] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.MetadataProperty] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.NavigationProperty] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.MetadataItem] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.EdmMember] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.ParameterMode] = new EnumType();
            _builtInTypes[(int)BuiltInTypeKind.PrimitiveType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.PrimitiveTypeKind] = new EnumType();
            _builtInTypes[(int)BuiltInTypeKind.EdmProperty] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.ProviderManifest] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.ReferentialConstraint] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.RefType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.RelationshipEndMember] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.RelationshipMultiplicity] = new EnumType();
            _builtInTypes[(int)BuiltInTypeKind.RelationshipSet] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.RelationshipType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.RowType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.SimpleType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.StructuralType] = new ComplexType();
            _builtInTypes[(int)BuiltInTypeKind.TypeUsage] = new ComplexType();
            
 
            ////////////////////////////////////////////////////////////////////////////////////////////////
            // Initialize item attributes for all the built-in complex types
            ////////////////////////////////////////////////////////////////////////////////////////////////
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem),
                                   EdmConstants.ItemType,
                                   false /*isAbstract*/,
                                   null);
 
            // populate the attributes for item attributes
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataProperty),
                                   EdmConstants.ItemAttribute,
                                   true /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.GlobalItem),
                                   EdmConstants.GlobalItem,
                                   false /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.TypeUsage),
                                   EdmConstants.TypeUsage,
                                   false, /*isAbstract*/
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            //populate the attributes for the edm type
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EdmType),
                                   EdmConstants.EdmType,
                                   true, /*isAbstract*/
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.GlobalItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.SimpleType),
                                   EdmConstants.SimpleType, 
                                   true /*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EnumType),
                                   EdmConstants.EnumerationType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.SimpleType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.PrimitiveType), 
                                   EdmConstants.PrimitiveType, 
                                   false/*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.SimpleType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.CollectionType),
                                   EdmConstants.CollectionType,
                                   false /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.RefType),
                                   EdmConstants.RefType,
                                   false /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EdmMember),
                                   EdmConstants.Member,
                                   true /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EdmProperty),
                                   EdmConstants.Property, 
                                   false /*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmMember));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.NavigationProperty),
                                   EdmConstants.NavigationProperty, 
                                   false /*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmMember));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.ProviderManifest),
                                   EdmConstants.ProviderManifest, 
                                   true /*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.RelationshipEndMember), 
                                   EdmConstants.RelationshipEnd, 
                                   true /*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmMember));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.AssociationEndMember), 
                                   EdmConstants.AssociationEnd, 
                                   false /*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.RelationshipEndMember));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EnumMember),
                                   EdmConstants.EnumerationMember,
                                   false /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.ReferentialConstraint),
                                   EdmConstants.ReferentialConstraint,
                                   false /*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            // Structural Type hierarchy
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.StructuralType), 
                                   EdmConstants.StructuralType, 
                                   true/*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.RowType),
                                   EdmConstants.RowType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.StructuralType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.ComplexType), 
                                   EdmConstants.ComplexType, 
                                   false/*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.StructuralType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EntityTypeBase), 
                                   EdmConstants.ElementType, 
                                   true/*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.StructuralType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EntityType),
                                   EdmConstants.EntityType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EntityTypeBase));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.RelationshipType), 
                                   EdmConstants.RelationshipType, 
                                   true/*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EntityTypeBase));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.AssociationType), 
                                   EdmConstants.AssociationType, 
                                   false/*isAbstract*/, 
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.RelationshipType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.Facet),
                                   EdmConstants.Facet,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EntityContainer),
                                   EdmConstants.EntityContainerType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.GlobalItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EntitySetBase),
                                   EdmConstants.BaseEntitySetType,
                                   true/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EntitySet),
                                   EdmConstants.EntitySetType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EntitySetBase));
 
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.RelationshipSet),
                                   EdmConstants.RelationshipSet,
                                   true/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EntitySetBase));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.AssociationSet),
                                   EdmConstants.AssociationSetType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.RelationshipSet));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.AssociationSetEnd),
                                   EdmConstants.AssociationSetEndType,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.FunctionParameter),
                                   EdmConstants.FunctionParameter,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.EdmFunction),
                                   EdmConstants.Function,
                                   false/*isAbstract*/,
                                   (ComplexType)GetBuiltInType(BuiltInTypeKind.EdmType));
 
            InitializeBuiltInTypes((ComplexType)GetBuiltInType(BuiltInTypeKind.Documentation),
                                    EdmConstants.Documentation,
                                    false/*isAbstract*/,
                                    (ComplexType)GetBuiltInType(BuiltInTypeKind.MetadataItem));
 
            ////////////////////////////////////////////////////////////////////////////////////////////////
            // Initialize item attributes for all the built-in enum types
            ////////////////////////////////////////////////////////////////////////////////////////////////
            InitializeEnumType(BuiltInTypeKind.OperationAction,
                               EdmConstants.DeleteAction,
                               new string[] { EdmConstants.None, EdmConstants.Cascade, EdmConstants.Restrict });
 
            InitializeEnumType(BuiltInTypeKind.RelationshipMultiplicity,
                               EdmConstants.RelationshipMultiplicity,
                               new string[] { EdmConstants.One, EdmConstants.ZeroToOne, EdmConstants.Many });
 
            InitializeEnumType(BuiltInTypeKind.ParameterMode,
                               EdmConstants.ParameterMode,
                               new string[] { EdmConstants.In, EdmConstants.Out, EdmConstants.InOut });
 
            InitializeEnumType(BuiltInTypeKind.CollectionKind,
                               EdmConstants.CollectionKind,
                               new string[] { EdmConstants.NoneCollectionKind, EdmConstants.ListCollectionKind, EdmConstants.BagCollectionKind });
 
            InitializeEnumType(BuiltInTypeKind.PrimitiveTypeKind,
                               EdmConstants.PrimitiveTypeKind,
                               Enum.GetNames(typeof(PrimitiveTypeKind)));
 
            ////////////////////////////////////////////////////////////////////////////////////////////////
            // Bootstrapping the general facet descriptions
            ////////////////////////////////////////////////////////////////////////////////////////////////
 
            // Other type non-specific facets
            FacetDescription[] generalFacetDescriptions = new FacetDescription[2];
 
            _nullableFacetDescription = new FacetDescription(DbProviderManifest.NullableFacetName,
                                                              EdmProviderManifest.GetPrimitiveType(PrimitiveTypeKind.Boolean),
                                                              null,
                                                              null,
                                                              true);            
            generalFacetDescriptions[0] = (_nullableFacetDescription);
            _defaultValueFacetDescription = new FacetDescription(DbProviderManifest.DefaultValueFacetName,
                                                              MetadataItem.GetBuiltInType(BuiltInTypeKind.EdmType),
                                                              null,
                                                              null,
                                                              null);
            generalFacetDescriptions[1] = (_defaultValueFacetDescription);
            _generalFacetDescriptions = Array.AsReadOnly(generalFacetDescriptions);
 
            _collectionKindFacetDescription = new FacetDescription(XmlConstants.CollectionKind,
                                                              MetadataItem.GetBuiltInType(BuiltInTypeKind.EnumType),
                                                              null,
                                                              null,
                                                              null);
            
 
            ////////////////////////////////////////////////////////////////////////////////////////////////
            // Add properties for the built-in complex types
            ////////////////////////////////////////////////////////////////////////////////////////////////
            TypeUsage stringTypeUsage = TypeUsage.Create(EdmProviderManifest.GetPrimitiveType(PrimitiveTypeKind.String));
            TypeUsage booleanTypeUsage = TypeUsage.Create(EdmProviderManifest.GetPrimitiveType(PrimitiveTypeKind.Boolean));
            TypeUsage edmTypeUsage = TypeUsage.Create(MetadataItem.GetBuiltInType(BuiltInTypeKind.EdmType));
            TypeUsage typeUsageTypeUsage = TypeUsage.Create(MetadataItem.GetBuiltInType(BuiltInTypeKind.TypeUsage));
            TypeUsage complexTypeUsage = TypeUsage.Create(MetadataItem.GetBuiltInType(BuiltInTypeKind.ComplexType));
 
            // populate the attributes for item attributes
            AddBuiltInTypeProperties(BuiltInTypeKind.MetadataProperty,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.TypeUsage, typeUsageTypeUsage),
                                                    new EdmProperty(EdmConstants.Value, complexTypeUsage) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.MetadataItem,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.ItemAttributes, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.MetadataProperty).GetCollectionType())),
                                                       new EdmProperty(EdmConstants.Documentation, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.Documentation))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.TypeUsage,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.EdmType, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EdmType))),
                                                    new EdmProperty(EdmConstants.Facets, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.Facet)))});
 
            //populate the attributes for the edm type
            AddBuiltInTypeProperties(BuiltInTypeKind.EdmType,
                                   new EdmProperty[] { new  EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new  EdmProperty(EdmConstants.Namespace, stringTypeUsage),
                                                    new  EdmProperty(EdmConstants.Abstract, booleanTypeUsage),
                                                    new  EdmProperty(EdmConstants.Sealed, booleanTypeUsage),
                                                    new  EdmProperty(EdmConstants.BaseType, complexTypeUsage) } );
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EnumType,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.EnumMembers, stringTypeUsage) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.CollectionType,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.TypeUsage, typeUsageTypeUsage) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.RefType,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.EntityType, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EntityType))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EdmMember,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.TypeUsage, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.TypeUsage))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EdmProperty,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Nullable, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.DefaultValue, complexTypeUsage) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.NavigationProperty,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.RelationshipTypeName, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.ToEndMemberName, stringTypeUsage) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.RelationshipEndMember, 
                                   new EdmProperty[] { new EdmProperty(EdmConstants.OperationBehaviors, complexTypeUsage),
                                                    new EdmProperty(EdmConstants.RelationshipMultiplicity, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EnumType))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EnumMember,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.ReferentialConstraint,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.ToRole, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.RelationshipEndMember))),
                                                    new EdmProperty(EdmConstants.FromRole, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.RelationshipEndMember))),
                                                    new EdmProperty(EdmConstants.ToProperties, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EdmProperty).GetCollectionType())),
                                                    new EdmProperty(EdmConstants.FromProperties, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EdmProperty).GetCollectionType())) } );
 
            // Structural Type hierarchy
            AddBuiltInTypeProperties(BuiltInTypeKind.StructuralType, 
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Members, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EdmMember))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EntityTypeBase, 
                                   new EdmProperty[] { new EdmProperty(EdmConstants.KeyMembers, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EdmMember))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.Facet,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.EdmType, edmTypeUsage),
                                                    new EdmProperty(EdmConstants.Value, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EdmType))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EntityContainer,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.EntitySets, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EntitySet))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EntitySetBase,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.EntityType, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EntityType))),
                                                    new EdmProperty(EdmConstants.Schema, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.Table, stringTypeUsage)
                                                  });
                        
            AddBuiltInTypeProperties(BuiltInTypeKind.AssociationSet,
                                                    new EdmProperty[] { new EdmProperty(EdmConstants.AssociationSetEnds, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.AssociationSetEnd).GetCollectionType()))});
 
            AddBuiltInTypeProperties(BuiltInTypeKind.AssociationSetEnd,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Role, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.EntitySetType, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EntitySet))) } );
 
            AddBuiltInTypeProperties(BuiltInTypeKind.FunctionParameter,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.Mode, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.EnumType))),
                                                    new EdmProperty(EdmConstants.TypeUsage, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.TypeUsage))) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.EdmFunction,
                                   new EdmProperty[] { new EdmProperty(EdmConstants.Name, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.Namespace, stringTypeUsage),
                                                    new EdmProperty(EdmConstants.ReturnParameter, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.FunctionParameter))),
                                                    new EdmProperty(EdmConstants.Parameters, TypeUsage.Create(GetBuiltInType(BuiltInTypeKind.FunctionParameter).GetCollectionType())) });
 
            AddBuiltInTypeProperties(BuiltInTypeKind.Documentation,
                       new EdmProperty[] { new EdmProperty(EdmConstants.Summary, stringTypeUsage),
                                           new EdmProperty(EdmConstants.LongDescription, stringTypeUsage) });
 
            // Set all types to be readonly, used SetReadOnly to skip validation method to 
            for (int i = 0; i < _builtInTypes.Length; i++)
            {
                _builtInTypes[i].SetReadOnly();
            }
        }
        #endregion
 
        #region Fields
        private static EdmType[] _builtInTypes = new EdmType[EdmConstants.NumBuiltInTypes];
        private static readonly System.Collections.ObjectModel.ReadOnlyCollection<FacetDescription> _generalFacetDescriptions;
        private static FacetDescription _nullableFacetDescription;
        private static FacetDescription _defaultValueFacetDescription;
        private static FacetDescription _collectionKindFacetDescription;
        #endregion
 
        #region Properties
        
        internal static FacetDescription DefaultValueFacetDescription
        {
            get { return _defaultValueFacetDescription; }
        }
 
        internal static FacetDescription CollectionKindFacetDescription
        {
            get { return _collectionKindFacetDescription; }
        }
 
        
        internal static FacetDescription NullableFacetDescription
        {
            get { return _nullableFacetDescription; }
        }
        
        internal static EdmProviderManifest EdmProviderManifest
        {
            get
            {
                return EdmProviderManifest.Instance;
            }
        }
        #endregion
 
        #region Methods
        /// <summary>
        /// Returns the list of EDM builtin types
        /// </summary>
        public static EdmType GetBuiltInType(BuiltInTypeKind builtInTypeKind)
        {
            return _builtInTypes[(int)builtInTypeKind];
        }
 
        /// <summary>
        /// Returns the list of facet descriptions for a given type
        /// </summary>
        public static System.Collections.ObjectModel.ReadOnlyCollection<FacetDescription> GetGeneralFacetDescriptions()
        {
            return _generalFacetDescriptions;
        }
 
        /// <summary>
        /// Initialize all the build in type with the given type attributes and properties
        /// </summary>
        /// <param name="builtInType">The built In type which is getting initialized</param>
        /// <param name="name">name of the built in type</param>
        /// <param name="isAbstract">whether the type is abstract or not</param>
        /// <param name="isSealed">whether the type is sealed or not</param>
        /// <param name="baseType">The base type of the built in type</param>
        private static void InitializeBuiltInTypes(ComplexType builtInType,
                                                    string name,
                                                    bool isAbstract,
                                                    ComplexType baseType)
        {
            // Initialize item attributes for all ancestor types
            EdmType.Initialize(builtInType, name, EdmConstants.EdmNamespace, DataSpace.CSpace, isAbstract, baseType);
        }
 
        /// <summary>
        /// Add properties for all the build in complex type
        /// </summary>
        /// <param name="builtInTypeKind">The type of the built In type whose properties are being added</param>
        /// <param name="properties">properties of the built in type</param>
        private static void AddBuiltInTypeProperties(BuiltInTypeKind builtInTypeKind, EdmProperty[] properties)
        {
            ComplexType complexType = (ComplexType)GetBuiltInType(builtInTypeKind);
            if (properties != null)
            {
                for (int i = 0; i < properties.Length; i++)
                {
                    complexType.AddMember(properties[i]);
                }
            }
        }
 
        /// <summary>
        /// Initializes the enum type
        /// </summary>
        /// <param name="builtInTypeKind">The built-in type kind enum value of this enum type</param>
        /// <param name="name">The name of this enum type</param>
        /// <param name="enumMemberNames">The member names of this enum type</param>
        private static void InitializeEnumType(BuiltInTypeKind builtInTypeKind,
                                                string name,
                                                string[] enumMemberNames)
        {
            EnumType enumType = (EnumType)GetBuiltInType(builtInTypeKind);
 
            // Initialize item attributes for all ancestor types
            EdmType.Initialize(enumType,
                               name,
                               EdmConstants.EdmNamespace,
                               DataSpace.CSpace,
                               false,
                               null);
 
            for (int i = 0; i < enumMemberNames.Length; i++)
            {
                enumType.AddMember(new EnumMember(enumMemberNames[i], i));
            }
        }
        #endregion
    }
}