StructuralType.cs source code in C# .NET

                        Code:
                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Metadata / Edm / StructuralType.cs / 3 / StructuralType.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....], [....]
//--------------------------------------------------------------------- 
using System; 
using System.Collections.Generic;
using System.Diagnostics; 
using System.Data.Common;
using System.Text;

namespace System.Data.Metadata.Edm 
{
    ///  
    /// Represents the Structural Type 
    /// 
    public abstract class StructuralType : EdmType 
    {
        #region Constructors
        /// 
        /// Internal parameterless constructor for bootstrapping edmtypes 
        /// 
        internal StructuralType() 
        { 
            _members = new MemberCollection(this);
            _readOnlyMembers = _members.AsReadOnlyMetadataCollection(); 
        }

        /// 
        /// Initializes a new instance of Structural Type with the given members 
        /// 
        /// name of the structural type 
        /// namespace of the structural type 
        /// version of the structural type
        /// dataSpace in which this edmtype belongs to 
        /// Thrown if either name, namespace or version arguments are null
        internal StructuralType(string name, string namespaceName, DataSpace dataSpace)
            : base(name, namespaceName, dataSpace)
        { 
            _members = new MemberCollection(this);
            _readOnlyMembers = _members.AsReadOnlyMetadataCollection(); 
        } 
        #endregion
 
        #region Fields
        private readonly MemberCollection _members;
        private readonly ReadOnlyMetadataCollection _readOnlyMembers;
        #endregion 

        #region Properties 
 
        /// 
        /// Returns the collection of members. 
        /// 
        [MetadataProperty(BuiltInTypeKind.EdmMember, true)]
        public ReadOnlyMetadataCollection Members
        { 
            get
            { 
                return _readOnlyMembers; 
            }
        } 
        #endregion

        #region Methods
 
        /// 
        /// Get the declared only members of a particular type 
        ///  
        internal ReadOnlyMetadataCollection GetDeclaredOnlyMembers() where T : EdmMember
        { 
            return _members.GetDeclaredOnlyMembers();
        }

        ///  
        /// Validates the types and sets the readOnly property to true. Once the type is set to readOnly,
        /// it can never be changed. 
        ///  
        internal override void SetReadOnly()
        { 
            if (!IsReadOnly)
            {
                base.SetReadOnly();
                this.Members.Source.SetReadOnly(); 
            }
        } 
 
        /// 
        /// Validates a EdmMember object to determine if it can be added to this type's 
        /// Members collection. If this method returns without throwing, it is assumed
        /// the member is valid.
        /// 
        /// The member to validate 
        internal abstract void ValidateMemberForAdd(EdmMember member);
 
        ///  
        /// Adds a member to this type
        ///  
        /// The member to add
        internal void AddMember(EdmMember member)
        {
            EntityUtil.GenericCheckArgumentNull(member, "member"); 
            Util.ThrowIfReadOnly(this);
            Debug.Assert(this.DataSpace == member.TypeUsage.EdmType.DataSpace || this.BuiltInTypeKind == BuiltInTypeKind.RowType, "Wrong member type getting added in structural type"); 
 
            //Since we set the DataSpace of the RowType to be -1 in the constructor, we need to initialize it
            //as and when we add members to it 
            if (BuiltInTypeKind.RowType == this.BuiltInTypeKind)
            {
                // Do this only when you are adding the first member
                if (_members.Count == 0) 
                {
                    this.DataSpace = member.TypeUsage.EdmType.DataSpace; 
                } 
                // We need to build types that span across more than one space. For such row types, we set the
                // DataSpace to -1 
                else if (this.DataSpace != (DataSpace)(-1) && member.TypeUsage.EdmType.DataSpace != this.DataSpace)
                {
                    this.DataSpace = (DataSpace)(-1);
                } 
            }
            this._members.Add(member); 
        } 
        #endregion
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner  [....], [....]
//--------------------------------------------------------------------- 
using System; 
using System.Collections.Generic;
using System.Diagnostics; 
using System.Data.Common;
using System.Text;

namespace System.Data.Metadata.Edm 
{
    ///  
    /// Represents the Structural Type 
    /// 
    public abstract class StructuralType : EdmType 
    {
        #region Constructors
        /// 
        /// Internal parameterless constructor for bootstrapping edmtypes 
        /// 
        internal StructuralType() 
        { 
            _members = new MemberCollection(this);
            _readOnlyMembers = _members.AsReadOnlyMetadataCollection(); 
        }

        /// 
        /// Initializes a new instance of Structural Type with the given members 
        /// 
        /// name of the structural type 
        /// namespace of the structural type 
        /// version of the structural type
        /// dataSpace in which this edmtype belongs to 
        /// Thrown if either name, namespace or version arguments are null
        internal StructuralType(string name, string namespaceName, DataSpace dataSpace)
            : base(name, namespaceName, dataSpace)
        { 
            _members = new MemberCollection(this);
            _readOnlyMembers = _members.AsReadOnlyMetadataCollection(); 
        } 
        #endregion
 
        #region Fields
        private readonly MemberCollection _members;
        private readonly ReadOnlyMetadataCollection _readOnlyMembers;
        #endregion 

        #region Properties 
 
        /// 
        /// Returns the collection of members. 
        /// 
        [MetadataProperty(BuiltInTypeKind.EdmMember, true)]
        public ReadOnlyMetadataCollection Members
        { 
            get
            { 
                return _readOnlyMembers; 
            }
        } 
        #endregion

        #region Methods
 
        /// 
        /// Get the declared only members of a particular type 
        ///  
        internal ReadOnlyMetadataCollection GetDeclaredOnlyMembers() where T : EdmMember
        { 
            return _members.GetDeclaredOnlyMembers();
        }

        ///  
        /// Validates the types and sets the readOnly property to true. Once the type is set to readOnly,
        /// it can never be changed. 
        ///  
        internal override void SetReadOnly()
        { 
            if (!IsReadOnly)
            {
                base.SetReadOnly();
                this.Members.Source.SetReadOnly(); 
            }
        } 
 
        /// 
        /// Validates a EdmMember object to determine if it can be added to this type's 
        /// Members collection. If this method returns without throwing, it is assumed
        /// the member is valid.
        /// 
        /// The member to validate 
        internal abstract void ValidateMemberForAdd(EdmMember member);
 
        ///  
        /// Adds a member to this type
        ///  
        /// The member to add
        internal void AddMember(EdmMember member)
        {
            EntityUtil.GenericCheckArgumentNull(member, "member"); 
            Util.ThrowIfReadOnly(this);
            Debug.Assert(this.DataSpace == member.TypeUsage.EdmType.DataSpace || this.BuiltInTypeKind == BuiltInTypeKind.RowType, "Wrong member type getting added in structural type"); 
 
            //Since we set the DataSpace of the RowType to be -1 in the constructor, we need to initialize it
            //as and when we add members to it 
            if (BuiltInTypeKind.RowType == this.BuiltInTypeKind)
            {
                // Do this only when you are adding the first member
                if (_members.Count == 0) 
                {
                    this.DataSpace = member.TypeUsage.EdmType.DataSpace; 
                } 
                // We need to build types that span across more than one space. For such row types, we set the
                // DataSpace to -1 
                else if (this.DataSpace != (DataSpace)(-1) && member.TypeUsage.EdmType.DataSpace != this.DataSpace)
                {
                    this.DataSpace = (DataSpace)(-1);
                } 
            }
            this._members.Add(member); 
        } 
        #endregion
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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StructuralType.cs source code in C# .NET

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