RowTypeElement.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / EntityModel / SchemaObjectModel / RowTypeElement.cs / 1305376 / RowTypeElement.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using Som = System.Data.EntityModel.SchemaObjectModel; 
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized; 
using System.Diagnostics;
using System.Globalization; 
using System.Xml; 
using System.Xml.Schema;
using System.Data; 
using System.IO;
using System.Data.Metadata.Edm;
using System.Data.Entity;
using System.Text; 

namespace System.Data.EntityModel.SchemaObjectModel 
{ 
    class RowTypeElement : ModelFunctionTypeElement
    { 

        private SchemaElementLookUpTable _properties = new SchemaElementLookUpTable();

        #region constructor 
        /// 
        /// 
        ///  
        /// 
        internal RowTypeElement(SchemaElement parentElement) 
            : base(parentElement)
        {
        }
 

        protected override bool HandleElement(XmlReader reader) 
        { 

            if (CanHandleElement(reader, XmlConstants.Property)) 
            {
                HandlePropertyElement(reader);
                return true;
            } 
            return false;
        } 
 
        protected void HandlePropertyElement(XmlReader reader)
        { 
            Debug.Assert(reader != null);

            var property = new RowTypePropertyElement(this);
            property.Parse(reader); 
            _properties.Add(property, true, Strings.DuplicateEntityContainerMemberName /**/);
        } 
 
        #endregion
 
        internal override void ResolveTopLevelNames()
        {

            foreach (var property in _properties) 
            {
                property.ResolveTopLevelNames(); 
            } 

        } 

        internal override void WriteIdentity(StringBuilder builder)
        {
            builder.Append("Row["); 

            bool first = true; 
            foreach (RowTypePropertyElement property in _properties) 
            {
                if (first) 
                {
                    first = !first;
                }
                else 
                {
                    builder.Append(", "); 
                } 
                property.WriteIdentity(builder);
            } 
            builder.Append("]");
        }

        internal override TypeUsage GetTypeUsage() 
        {
            if (_typeUsage == null) 
            { 
                var listOfProperties = new List();
                foreach (var property in _properties) 
                {
                    var edmProperty = new EdmProperty(property.FQName, property.GetTypeUsage());
                    edmProperty.AddMetadataProperties(property.OtherContent);
                    //edmProperty.DeclaringType 
                    listOfProperties.Add(edmProperty);
                } 
 
                RowType rowType = new RowType(listOfProperties);
                rowType.DataSpace = DataSpace.CSpace; 

                rowType.AddMetadataProperties(this.OtherContent);
                _typeUsage = TypeUsage.Create(rowType);
            } 
            return _typeUsage;
        } 
 
        internal override bool ResolveNameAndSetTypeUsage(Converter.ConversionCache convertedItemCache, Dictionary newGlobalItems)
        { 
            bool result = true;
            if (_typeUsage == null)
            {
                foreach (var property in _properties) 
                {
                    if (!property.ResolveNameAndSetTypeUsage(convertedItemCache, newGlobalItems)) 
                    { 
                        result = false;
                    } 
                }
            }
            return result;
        } 

        internal override void Validate() 
        { 
            foreach (var property in _properties)
            { 
                property.Validate();
            }

            if (_properties.Count == 0) 
            {
                AddError(ErrorCode.RowTypeWithoutProperty, EdmSchemaErrorSeverity.Error, Strings.RowTypeWithoutProperty); 
            } 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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