Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataWeb / Design / system / Data / EntityModel / Emitters / NavigationPropertyEmitter.cs / 1 / NavigationPropertyEmitter.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.CodeDom; using System.Collections.Generic; using System.Data.Services.Design; using System.Data.Metadata.Edm; using System.Diagnostics; namespace System.Data.EntityModel.Emitters { ////// Summary description for NavigationPropertyEmitter. /// internal sealed class NavigationPropertyEmitter : PropertyEmitterBase { private const string ValuePropertyName = "Value"; ////// /// /// /// public NavigationPropertyEmitter(ClientApiGenerator generator, NavigationProperty navigationProperty, bool declaringTypeUsesStandardBaseType) : base(generator, navigationProperty, declaringTypeUsesStandardBaseType) { } ////// Generate the navigation property /// /// The type to add the property to. protected override void EmitProperty(CodeTypeDeclaration typeDecl) { EmitNavigationProperty(typeDecl); } ////// Generate the navigation property specified /// /// The type to add the property to. private void EmitNavigationProperty(CodeTypeDeclaration typeDecl) { // create a regular property CodeMemberProperty property = EmitNavigationProperty(Item.ToEndMember); typeDecl.Members.Add(property); EmitField(typeDecl, GetReturnType(Item.ToEndMember), Item.ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.Many); } private void EmitField(CodeTypeDeclaration typeDecl, CodeTypeReference fieldType, bool hasDefault) { CodeMemberField memberField = new CodeMemberField(fieldType, Utils.FieldNameFromPropName(Item.Name)); memberField.Attributes = MemberAttributes.Private; if (hasDefault) { memberField.InitExpression = new CodeObjectCreateExpression(fieldType); } typeDecl.Members.Add(memberField); } ////// Generate a navigation property /// /// the other end /// True to emit Reference navigation property ///the generated property private CodeMemberProperty EmitNavigationProperty(RelationshipEndMember target) { CodeTypeReference typeRef = GetReturnType(target); // raise the PropertyGenerated event PropertyGeneratedEventArgs eventArgs = new PropertyGeneratedEventArgs(Item, null, // no backing field typeRef); this.Generator.RaisePropertyGeneratedEvent(eventArgs); // [System.ComponentModel.Browsable(false)] // public TargetType TargetName // public EntityReferenceTargetName // or // public EntityCollection TargetNames CodeMemberProperty property = new CodeMemberProperty(); // Only reference navigation properties are currently currently supported with XML serialization // and thus we should use the XmlIgnore and SoapIgnore attributes on other property types. AttributeEmitter.AddIgnoreAttributes(property); AttributeEmitter.AddBrowsableAttribute(property); CommentEmitter.EmitSummaryComments(Item, property.Comments); property.Name = Item.Name; if (eventArgs.ReturnType != null && !eventArgs.ReturnType.Equals(typeRef)) { property.Type = eventArgs.ReturnType; } else { property.Type = typeRef; } property.Attributes = MemberAttributes.Final; CodeExpression getMethod = EmitGetMethod(target); CodeExpression getReturnExpression; if (target.RelationshipMultiplicity != RelationshipMultiplicity.Many) { property.Attributes |= AccessibilityFromGettersAndSetters(Item); // insert user-supplied Set code here, before the assignment // List additionalSetStatements = eventArgs.AdditionalSetStatements; if (additionalSetStatements != null && additionalSetStatements.Count > 0) { try { property.SetStatements.AddRange(additionalSetStatements.ToArray()); } catch (ArgumentNullException e) { Generator.AddError(Strings.InvalidSetStatementSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidSetStatementSuppliedForProperty, EdmSchemaErrorSeverity.Error, e); } } CodeExpression valueRef = new CodePropertySetValueReferenceExpression(); if (typeRef != eventArgs.ReturnType) { // we need to cast to the actual type valueRef = new CodeCastExpression(typeRef, valueRef); } CodeExpression valueProperty = getMethod; // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference ("CSpaceQualifiedRelationshipName", "TargetRoleName").Value; getReturnExpression = valueProperty; // set // ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference ("CSpaceQualifiedRelationshipName", "TargetRoleName").Value = value; property.SetStatements.Add( new CodeAssignStatement(valueProperty, valueRef)); // setup the accessibility of the navigation property setter and getter MemberAttributes propertyAccessibility = property.Attributes & MemberAttributes.AccessMask; PropertyEmitter.AddGetterSetterFixUp(Generator.FixUps, GetFullyQualifiedPropertyName(property.Name), PropertyEmitter.GetGetterAccessibility(Item), propertyAccessibility, true); PropertyEmitter.AddGetterSetterFixUp(Generator.FixUps, GetFullyQualifiedPropertyName(property.Name), PropertyEmitter.GetSetterAccessibility(Item), propertyAccessibility, false); } else { property.Attributes |= PropertyEmitter.GetGetterAccessibility(Item); // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedCollection ("CSpaceQualifiedRelationshipName", "TargetRoleName"); getReturnExpression = getMethod; // set // if (value != null) // { // this = // } CodeExpression valueRef = new CodePropertySetValueReferenceExpression(); property.SetStatements.Add( new CodeConditionStatement( EmitExpressionDoesNotEqualNull(valueRef), new CodeAssignStatement(getMethod, valueRef) ) ); } // if additional Get statements were specified by the event subscriber, insert them now // List additionalGetStatements = eventArgs.AdditionalGetStatements; if (additionalGetStatements != null && additionalGetStatements.Count > 0) { try { property.GetStatements.AddRange(additionalGetStatements.ToArray()); } catch (ArgumentNullException ex) { Generator.AddError(Strings.InvalidGetStatementSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidGetStatementSuppliedForProperty, EdmSchemaErrorSeverity.Error, ex); } } property.GetStatements.Add(new CodeMethodReturnStatement(getReturnExpression)); return property; } internal static bool IsNameAlreadyAMemberName(StructuralType type, string generatedPropertyName, StringComparison comparison) { foreach (EdmMember member in type.Members) { if (member.DeclaringType == type && member.Name.Equals(generatedPropertyName, comparison)) { return true; } } return false; } private string GetFullyQualifiedPropertyName(string propertyName) { return Item.DeclaringType.FullName + "." + propertyName; } /// /// Gives the SchemaElement back cast to the most /// appropriate type /// private new NavigationProperty Item { get { return base.Item as NavigationProperty; } } ////// Get the return type for the get method, given the target end /// /// /// true if the is the return type for a reference property ///the return type for a target private CodeTypeReference GetReturnType(RelationshipEndMember target) { CodeTypeReference returnType = Generator.GetLeastPossibleQualifiedTypeReference(GetEntityType(target)); if (target.RelationshipMultiplicity == RelationshipMultiplicity.Many) { returnType = TypeReference.FrameworkGenericClass("System.Collections.ObjectModel", "Collection", returnType); } return returnType; } private static EntityTypeBase GetEntityType(RelationshipEndMember endMember) { Debug.Assert((BuiltInTypeKind.RefType == endMember.TypeUsage.EdmType.BuiltInTypeKind), "not a reference type"); EntityTypeBase type = ((RefType)endMember.TypeUsage.EdmType).ElementType; return type; } ////// Emit the GetRelatedCollection or GetRelatedReference methods /// /// Target end of the relationship ///Expression to invoke the appropriate method private CodeExpression EmitGetMethod(RelationshipEndMember target) { return new CodeFieldReferenceExpression(ThisRef, Utils.FieldNameFromPropName(Item.Name)); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.CodeDom; using System.Collections.Generic; using System.Data.Services.Design; using System.Data.Metadata.Edm; using System.Diagnostics; namespace System.Data.EntityModel.Emitters { ////// Summary description for NavigationPropertyEmitter. /// internal sealed class NavigationPropertyEmitter : PropertyEmitterBase { private const string ValuePropertyName = "Value"; ////// /// /// /// public NavigationPropertyEmitter(ClientApiGenerator generator, NavigationProperty navigationProperty, bool declaringTypeUsesStandardBaseType) : base(generator, navigationProperty, declaringTypeUsesStandardBaseType) { } ////// Generate the navigation property /// /// The type to add the property to. protected override void EmitProperty(CodeTypeDeclaration typeDecl) { EmitNavigationProperty(typeDecl); } ////// Generate the navigation property specified /// /// The type to add the property to. private void EmitNavigationProperty(CodeTypeDeclaration typeDecl) { // create a regular property CodeMemberProperty property = EmitNavigationProperty(Item.ToEndMember); typeDecl.Members.Add(property); EmitField(typeDecl, GetReturnType(Item.ToEndMember), Item.ToEndMember.RelationshipMultiplicity == RelationshipMultiplicity.Many); } private void EmitField(CodeTypeDeclaration typeDecl, CodeTypeReference fieldType, bool hasDefault) { CodeMemberField memberField = new CodeMemberField(fieldType, Utils.FieldNameFromPropName(Item.Name)); memberField.Attributes = MemberAttributes.Private; if (hasDefault) { memberField.InitExpression = new CodeObjectCreateExpression(fieldType); } typeDecl.Members.Add(memberField); } ////// Generate a navigation property /// /// the other end /// True to emit Reference navigation property ///the generated property private CodeMemberProperty EmitNavigationProperty(RelationshipEndMember target) { CodeTypeReference typeRef = GetReturnType(target); // raise the PropertyGenerated event PropertyGeneratedEventArgs eventArgs = new PropertyGeneratedEventArgs(Item, null, // no backing field typeRef); this.Generator.RaisePropertyGeneratedEvent(eventArgs); // [System.ComponentModel.Browsable(false)] // public TargetType TargetName // public EntityReferenceTargetName // or // public EntityCollection TargetNames CodeMemberProperty property = new CodeMemberProperty(); // Only reference navigation properties are currently currently supported with XML serialization // and thus we should use the XmlIgnore and SoapIgnore attributes on other property types. AttributeEmitter.AddIgnoreAttributes(property); AttributeEmitter.AddBrowsableAttribute(property); CommentEmitter.EmitSummaryComments(Item, property.Comments); property.Name = Item.Name; if (eventArgs.ReturnType != null && !eventArgs.ReturnType.Equals(typeRef)) { property.Type = eventArgs.ReturnType; } else { property.Type = typeRef; } property.Attributes = MemberAttributes.Final; CodeExpression getMethod = EmitGetMethod(target); CodeExpression getReturnExpression; if (target.RelationshipMultiplicity != RelationshipMultiplicity.Many) { property.Attributes |= AccessibilityFromGettersAndSetters(Item); // insert user-supplied Set code here, before the assignment // List additionalSetStatements = eventArgs.AdditionalSetStatements; if (additionalSetStatements != null && additionalSetStatements.Count > 0) { try { property.SetStatements.AddRange(additionalSetStatements.ToArray()); } catch (ArgumentNullException e) { Generator.AddError(Strings.InvalidSetStatementSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidSetStatementSuppliedForProperty, EdmSchemaErrorSeverity.Error, e); } } CodeExpression valueRef = new CodePropertySetValueReferenceExpression(); if (typeRef != eventArgs.ReturnType) { // we need to cast to the actual type valueRef = new CodeCastExpression(typeRef, valueRef); } CodeExpression valueProperty = getMethod; // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference ("CSpaceQualifiedRelationshipName", "TargetRoleName").Value; getReturnExpression = valueProperty; // set // ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference ("CSpaceQualifiedRelationshipName", "TargetRoleName").Value = value; property.SetStatements.Add( new CodeAssignStatement(valueProperty, valueRef)); // setup the accessibility of the navigation property setter and getter MemberAttributes propertyAccessibility = property.Attributes & MemberAttributes.AccessMask; PropertyEmitter.AddGetterSetterFixUp(Generator.FixUps, GetFullyQualifiedPropertyName(property.Name), PropertyEmitter.GetGetterAccessibility(Item), propertyAccessibility, true); PropertyEmitter.AddGetterSetterFixUp(Generator.FixUps, GetFullyQualifiedPropertyName(property.Name), PropertyEmitter.GetSetterAccessibility(Item), propertyAccessibility, false); } else { property.Attributes |= PropertyEmitter.GetGetterAccessibility(Item); // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedCollection ("CSpaceQualifiedRelationshipName", "TargetRoleName"); getReturnExpression = getMethod; // set // if (value != null) // { // this = // } CodeExpression valueRef = new CodePropertySetValueReferenceExpression(); property.SetStatements.Add( new CodeConditionStatement( EmitExpressionDoesNotEqualNull(valueRef), new CodeAssignStatement(getMethod, valueRef) ) ); } // if additional Get statements were specified by the event subscriber, insert them now // List additionalGetStatements = eventArgs.AdditionalGetStatements; if (additionalGetStatements != null && additionalGetStatements.Count > 0) { try { property.GetStatements.AddRange(additionalGetStatements.ToArray()); } catch (ArgumentNullException ex) { Generator.AddError(Strings.InvalidGetStatementSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidGetStatementSuppliedForProperty, EdmSchemaErrorSeverity.Error, ex); } } property.GetStatements.Add(new CodeMethodReturnStatement(getReturnExpression)); return property; } internal static bool IsNameAlreadyAMemberName(StructuralType type, string generatedPropertyName, StringComparison comparison) { foreach (EdmMember member in type.Members) { if (member.DeclaringType == type && member.Name.Equals(generatedPropertyName, comparison)) { return true; } } return false; } private string GetFullyQualifiedPropertyName(string propertyName) { return Item.DeclaringType.FullName + "." + propertyName; } /// /// Gives the SchemaElement back cast to the most /// appropriate type /// private new NavigationProperty Item { get { return base.Item as NavigationProperty; } } ////// Get the return type for the get method, given the target end /// /// /// true if the is the return type for a reference property ///the return type for a target private CodeTypeReference GetReturnType(RelationshipEndMember target) { CodeTypeReference returnType = Generator.GetLeastPossibleQualifiedTypeReference(GetEntityType(target)); if (target.RelationshipMultiplicity == RelationshipMultiplicity.Many) { returnType = TypeReference.FrameworkGenericClass("System.Collections.ObjectModel", "Collection", returnType); } return returnType; } private static EntityTypeBase GetEntityType(RelationshipEndMember endMember) { Debug.Assert((BuiltInTypeKind.RefType == endMember.TypeUsage.EdmType.BuiltInTypeKind), "not a reference type"); EntityTypeBase type = ((RefType)endMember.TypeUsage.EdmType).ElementType; return type; } ////// Emit the GetRelatedCollection or GetRelatedReference methods /// /// Target end of the relationship ///Expression to invoke the appropriate method private CodeExpression EmitGetMethod(RelationshipEndMember target) { return new CodeFieldReferenceExpression(ThisRef, Utils.FieldNameFromPropName(Item.Name)); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- GeometryDrawing.cs
- TextEndOfSegment.cs
- DecimalStorage.cs
- XmlSchemaAny.cs
- CapabilitiesSection.cs
- NegatedCellConstant.cs
- WebRequestModuleElementCollection.cs
- TdsParserHelperClasses.cs
- XmlStreamNodeWriter.cs
- CatalogZone.cs
- XmlSerializerFaultFormatter.cs
- PingReply.cs
- DPCustomTypeDescriptor.cs
- DefaultTraceListener.cs
- XmlLinkedNode.cs
- CodeCompileUnit.cs
- SamlSubjectStatement.cs
- SmiContext.cs
- SqlDataSource.cs
- ConnectionsZoneDesigner.cs
- EventMap.cs
- XmlNodeList.cs
- WebDisplayNameAttribute.cs
- XmlDeclaration.cs
- PermissionSetTriple.cs
- COM2Properties.cs
- DrawListViewSubItemEventArgs.cs
- IndexerNameAttribute.cs
- ArraySubsetEnumerator.cs
- filewebrequest.cs
- Baml2006Reader.cs
- ManipulationDevice.cs
- ClientFormsAuthenticationCredentials.cs
- SQLMoneyStorage.cs
- WorkflowInstanceExtensionManager.cs
- TrustManagerPromptUI.cs
- WebPartZoneBase.cs
- CodeDomDesignerLoader.cs
- DataTemplateSelector.cs
- FrameworkReadOnlyPropertyMetadata.cs
- Simplifier.cs
- X509SecurityTokenProvider.cs
- ModulesEntry.cs
- EditorServiceContext.cs
- PasswordRecovery.cs
- DocumentXPathNavigator.cs
- FixedFlowMap.cs
- ApplicationContext.cs
- RequestCacheValidator.cs
- SiteMapNodeCollection.cs
- securitycriticaldataClass.cs
- SQLDateTimeStorage.cs
- HtmlUtf8RawTextWriter.cs
- XmlConvert.cs
- SafeArchiveContext.cs
- ObjectParameterCollection.cs
- Action.cs
- Merger.cs
- NavigationWindowAutomationPeer.cs
- log.cs
- TextCollapsingProperties.cs
- CategoryAttribute.cs
- configsystem.cs
- CngKey.cs
- RuntimeVariableList.cs
- Slider.cs
- TextCollapsingProperties.cs
- LostFocusEventManager.cs
- AccessDataSource.cs
- DrawingServices.cs
- Util.cs
- IteratorFilter.cs
- ComponentDesigner.cs
- DelimitedListTraceListener.cs
- AppModelKnownContentFactory.cs
- FlowLayoutSettings.cs
- StyleCollection.cs
- ListItemDetailViewAttribute.cs
- Opcode.cs
- SqlLiftIndependentRowExpressions.cs
- DataMemberFieldConverter.cs
- CanExecuteRoutedEventArgs.cs
- StreamWriter.cs
- GridViewEditEventArgs.cs
- DbException.cs
- HttpListenerResponse.cs
- Span.cs
- ListContractAdapter.cs
- SafeMarshalContext.cs
- ServicePointManagerElement.cs
- ObjectSecurity.cs
- CompositeActivityDesigner.cs
- TypeExtensionConverter.cs
- NamespaceCollection.cs
- ExpressionNode.cs
- SafeSecurityHelper.cs
- DataSourceDesigner.cs
- BitmapEffectGeneralTransform.cs
- AppSettings.cs
- PerfCounterSection.cs