/// <summary> /// Helper method that raises the PropertyGenerated event /// </summary> /// <param name="eventArgs">The event arguments passed to the subscriber</param> internal void RaisePropertyGeneratedEvent(PropertyGeneratedEventArgs eventArgs) { if (this.OnPropertyGenerated != null) { this.OnPropertyGenerated(this, eventArgs); } }
/// <summary> /// Helper method that raises the PropertyGenerated event /// </summary> /// <param name="eventArgs">The event arguments passed to the subscriber</param> internal void RaisePropertyGeneratedEvent(PropertyGeneratedEventArgs eventArgs) { _generator.RaisePropertyGeneratedEvent(eventArgs); }
private CodeMemberProperty CreateEntitySetProperty(EntitySet set) { Debug.Assert(set != null, "Property is Null"); // trying to get // // [System.ComponentModel.Browsable(false)] // public ObjectQuery<Customer> Customers // { // get // { // if ((this._Customers == null)) // { // this._Customers = base.CreateQuery<Customer>("[Customers]"); // } // return this._Customers; // } // } // CodeMemberProperty codeProperty = new CodeMemberProperty(); Generator.AttributeEmitter.EmitGeneratedCodeAttribute(codeProperty); codeProperty.Attributes = MemberAttributes.Final | GetEntitySetPropertyAccessibility(set); codeProperty.Name = set.Name; codeProperty.HasGet = true; codeProperty.HasSet = false; // Determine type to use for field/property and name of factory method on ObjectContext string typeName = "ObjectQuery"; string createMethodName = "CreateQuery"; // When the EntitySet name is used as CommandText, it should be quoted string createMethodArgument = "[" + set.Name + "]"; CodeTypeReference genericParameter = Generator.GetLeastPossibleQualifiedTypeReference(set.ElementType); codeProperty.Type = TypeReference.AdoFrameworkGenericClass(typeName, genericParameter); string fieldName = Utils.FieldNameFromPropName(set.Name); // raise the PropertyGenerated event before proceeding further PropertyGeneratedEventArgs eventArgs = new PropertyGeneratedEventArgs(set, fieldName, codeProperty.Type); Generator.RaisePropertyGeneratedEvent(eventArgs); if (eventArgs.ReturnType == null || !eventArgs.ReturnType.Equals(codeProperty.Type)) { throw EDesignUtil.InvalidOperation(Strings.CannotChangePropertyReturnType(set.Name, Item.Name)); } List<CodeAttributeDeclaration> additionalAttributes = eventArgs.AdditionalAttributes; if (additionalAttributes != null && additionalAttributes.Count > 0) { try { codeProperty.CustomAttributes.AddRange(additionalAttributes.ToArray()); } catch (ArgumentNullException e) { Generator.AddError(Strings.InvalidAttributeSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidAttributeSuppliedForProperty, EdmSchemaErrorSeverity.Error, e); } } // we need to insert user-specified code before other/existing code, including // the return statement List<CodeStatement> additionalGetStatements = eventArgs.AdditionalGetStatements; if (additionalGetStatements != null && additionalGetStatements.Count > 0) { try { codeProperty.GetStatements.AddRange(additionalGetStatements.ToArray()); } catch (ArgumentNullException e) { Generator.AddError(Strings.InvalidGetStatementSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidGetStatementSuppliedForProperty, EdmSchemaErrorSeverity.Error, e); } } codeProperty.GetStatements.Add( new CodeConditionStatement( EmitExpressionEqualsNull(new CodeFieldReferenceExpression(ThisRef, fieldName)), new CodeAssignStatement( new CodeFieldReferenceExpression(ThisRef, fieldName), new CodeMethodInvokeExpression( new CodeMethodReferenceExpression( new CodeBaseReferenceExpression(), createMethodName, new CodeTypeReference[] { genericParameter } ), new CodePrimitiveExpression(createMethodArgument) ) ) ) ); codeProperty.GetStatements.Add( new CodeMethodReturnStatement( new CodeFieldReferenceExpression( ThisRef, fieldName ) ) ); // property summary CommentEmitter.EmitSummaryComments(set, codeProperty.Comments); return codeProperty; }
/// <summary> /// Generate a navigation property /// </summary> /// <param name="target">the other end</param> /// <param name="referenceProperty">True to emit Reference navigation property</param> /// <returns>the generated property</returns> private CodeMemberProperty EmitNavigationProperty(RelationshipEndMember target, bool referenceProperty) { CodeTypeReference typeRef = GetReturnType(target, referenceProperty); // 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 EntityReference<TargetType> TargetName // or // public EntityCollection<targetType> TargetNames CodeMemberProperty property = new CodeMemberProperty(); if (referenceProperty) { AttributeEmitter.AddBrowsableAttribute(property); Generator.AttributeEmitter.EmitGeneratedCodeAttribute(property); } else { Generator.AttributeEmitter.EmitNavigationPropertyAttributes(Generator, target, property, eventArgs.AdditionalAttributes); // 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.AddDataMemberAttribute(property); CommentEmitter.EmitSummaryComments(Item, property.Comments); property.Name = Item.Name; if (referenceProperty) { property.Name += "Reference"; if (IsNameAlreadyAMemberName(Item.DeclaringType, property.Name, Generator.LanguageAppropriateStringComparer)) { Generator.AddError(Strings.GeneratedNavigationPropertyNameConflict(Item.Name, Item.DeclaringType.Name, property.Name), ModelBuilderErrorCode.GeneratedNavigationPropertyNameConflict, EdmSchemaErrorSeverity.Error, Item.DeclaringType.FullName, property.Name); } } if (eventArgs.ReturnType != null && !eventArgs.ReturnType.Equals(typeRef)) { property.Type = eventArgs.ReturnType; } else { property.Type = typeRef; } property.Attributes = MemberAttributes.Final; CodeMethodInvokeExpression getMethod = EmitGetMethod(target); CodeExpression getReturnExpression; property.Attributes |= AccessibilityFromGettersAndSetters(Item); // 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); if (target.RelationshipMultiplicity != RelationshipMultiplicity.Many) { // insert user-supplied Set code here, before the assignment // List<CodeStatement> additionalSetStatements = eventArgs.AdditionalSetStatements; if (additionalSetStatements != null && additionalSetStatements.Count > 0) { try { property.SetStatements.AddRange(additionalSetStatements.ToArray()); } catch (ArgumentNullException ex) { Generator.AddError(Strings.InvalidSetStatementSuppliedForProperty(Item.Name), ModelBuilderErrorCode.InvalidSetStatementSuppliedForProperty, EdmSchemaErrorSeverity.Error, ex); } } CodeExpression valueRef = new CodePropertySetValueReferenceExpression(); if(typeRef != eventArgs.ReturnType) { // we need to cast to the actual type valueRef = new CodeCastExpression(typeRef, valueRef); } if (referenceProperty) { // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<TTargetEntity>("CSpaceQualifiedRelationshipName", "TargetRoleName"); getReturnExpression = getMethod; // set // if (value != null) // { // ((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedReference<TTargetEntity>"CSpaceQualifiedRelationshipName", "TargetRoleName", value); // } CodeMethodReferenceExpression initReferenceMethod = new CodeMethodReferenceExpression(); initReferenceMethod.MethodName = "InitializeRelatedReference"; initReferenceMethod.TypeArguments.Add(Generator.GetLeastPossibleQualifiedTypeReference(GetEntityType(target))); initReferenceMethod.TargetObject = new CodePropertyReferenceExpression( new CodeCastExpression(TypeReference.IEntityWithRelationshipsTypeBaseClass, ThisRef), "RelationshipManager"); // relationships aren't backed by types so we won't map the namespace // or we can't find the relationship again later string cspaceNamespaceNameQualifiedRelationshipName = target.DeclaringType.FullName; property.SetStatements.Add( new CodeConditionStatement( EmitExpressionDoesNotEqualNull(valueRef), new CodeExpressionStatement( new CodeMethodInvokeExpression( initReferenceMethod, new CodeExpression[] { new CodePrimitiveExpression(cspaceNamespaceNameQualifiedRelationshipName), new CodePrimitiveExpression(target.Name), valueRef})))); } else { CodePropertyReferenceExpression valueProperty = new CodePropertyReferenceExpression(getMethod, ValuePropertyName); // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<TTargetEntity>("CSpaceQualifiedRelationshipName", "TargetRoleName").Value; getReturnExpression = valueProperty; // set // ((IEntityWithRelationships)this).RelationshipManager.GetRelatedReference<TTargetEntity>("CSpaceQualifiedRelationshipName", "TargetRoleName").Value = value; property.SetStatements.Add( new CodeAssignStatement(valueProperty, valueRef)); } } else { // get // return ((IEntityWithRelationships)this).RelationshipManager.GetRelatedCollection<TTargetEntity>("CSpaceQualifiedRelationshipName", "TargetRoleName"); getReturnExpression = getMethod; // set // if (value != null) // { // ((IEntityWithRelationships)this).RelationshipManager.InitializeRelatedCollection<TTargetEntity>"CSpaceQualifiedRelationshipName", "TargetRoleName", value); // } CodeExpression valueRef = new CodePropertySetValueReferenceExpression(); CodeMethodReferenceExpression initCollectionMethod = new CodeMethodReferenceExpression(); initCollectionMethod.MethodName = "InitializeRelatedCollection"; initCollectionMethod.TypeArguments.Add(Generator.GetLeastPossibleQualifiedTypeReference(GetEntityType(target))); initCollectionMethod.TargetObject = new CodePropertyReferenceExpression( new CodeCastExpression(TypeReference.IEntityWithRelationshipsTypeBaseClass, ThisRef), "RelationshipManager"); // relationships aren't backed by types so we won't map the namespace // or we can't find the relationship again later string cspaceNamespaceNameQualifiedRelationshipName = target.DeclaringType.FullName; property.SetStatements.Add( new CodeConditionStatement( EmitExpressionDoesNotEqualNull(valueRef), new CodeExpressionStatement( new CodeMethodInvokeExpression( initCollectionMethod, new CodeExpression[] { new CodePrimitiveExpression(cspaceNamespaceNameQualifiedRelationshipName), new CodePrimitiveExpression(target.Name), valueRef})))); } // if additional Get statements were specified by the event subscriber, insert them now // List<CodeStatement> 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; }