Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / EntityModel / SchemaObjectModel / ReferenceTypeElement.cs / 1305376 / ReferenceTypeElement.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 ReferenceTypeElement : ModelFunctionTypeElement { #region constructor ////// /// /// internal ReferenceTypeElement(SchemaElement parentElement) : base(parentElement) { } #endregion protected override bool HandleAttribute(XmlReader reader) { if (base.HandleAttribute(reader)) { return true; } else if (CanHandleAttribute(reader, XmlConstants.TypeElement)) { HandleTypeElementAttribute(reader); return true; } return false; } protected void HandleTypeElementAttribute(XmlReader reader) { Debug.Assert(reader != null); string type; if (!Utils.GetString(Schema, reader, out type)) return; _unresolvedType = type; } internal override void WriteIdentity(StringBuilder builder) { Debug.Assert(UnresolvedType != null && !UnresolvedType.Trim().Equals(String.Empty)); builder.Append("Ref(" + UnresolvedType + ")"); } internal override TypeUsage GetTypeUsage() { return _typeUsage; } internal override bool ResolveNameAndSetTypeUsage(Converter.ConversionCache convertedItemCache, DictionarynewGlobalItems) { if (_typeUsage == null) { Debug.Assert(!(_type is ScalarType)); EdmType edmType = (EdmType)Converter.LoadSchemaElement(_type, _type.Schema.ProviderManifest, convertedItemCache, newGlobalItems); EntityType entityType = edmType as EntityType; Debug.Assert(entityType != null); RefType refType = new RefType(entityType); refType.AddMetadataProperties(this.OtherContent); _typeUsage = TypeUsage.Create(refType); } return true; } internal override void Validate() { base.Validate(); if (_type != null && !(_type is SchemaEntityType)) { //Ref type refers to non entity type AddError(ErrorCode.ReferenceToNonEntityType, EdmSchemaErrorSeverity.Error, Strings.ReferenceToNonEntityType(_type.FQName)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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