/// <summary>
/// Shared code for adding a EdmTypeAttribute derived attribute including parameters to a type or property
/// </summary>
/// <param name="attributeName">Unqualified name of the attribute</param>
/// <param name="type">The type or property type of the code that is having the attribute attached.</param>
/// <param name="member">The type declaration to add the attribues to.</param>
public void EmitSchemaTypeAttribute(string attributeName, EdmType type, CodeTypeMember member)
{
Debug.Assert(attributeName != null, "attributeName should not be null");
Debug.Assert(type != null, "type should not be null");
Debug.Assert(member != null, "typeDecl should not be null");
// [mappingattribute(SchemaName="namespace",TypeName="classname")
CodeAttributeDeclaration attribute = EmitSimpleAttribute(attributeName);
AttributeEmitter.AddNamedAttributeArguments(attribute,
"NamespaceName", type.NamespaceName,
"Name", type.Name);
member.CustomAttributes.Add(attribute);
}
/// <summary>
/// The method to be called to create the type level attributes for the ItemTypeEmitter
/// </summary>
/// <param name="emitter">The strongly typed emitter</param>
/// <param name="typeDecl">The type declaration to add the attribues to.</param>
public void EmitTypeAttributes(EntityTypeEmitter emitter, CodeTypeDeclaration typeDecl)
{
Debug.Assert(emitter != null, "emitter should not be null");
Debug.Assert(typeDecl != null, "typeDecl should not be null");
EmitSchemaTypeAttribute(FQAdoFrameworkDataClassesName("EdmEntityTypeAttribute"), emitter, typeDecl);
CodeAttributeDeclaration attribute2 = EmitSimpleAttribute("System.Runtime.Serialization.DataContractAttribute");
AttributeEmitter.AddNamedAttributeArguments(attribute2,
"IsReference", true);
typeDecl.CustomAttributes.Add(attribute2);
CodeAttributeDeclaration attribute3 = EmitSimpleAttribute("System.Serializable");
typeDecl.CustomAttributes.Add(attribute3);
EmitKnownTypeAttributes(emitter.Item, emitter.Generator, typeDecl);
}
/// <summary>
/// The method to be called to create the property level attributes for the PropertyEmitter
/// </summary>
/// <param name="emitter">The strongly typed emitter</param>
/// <param name="propertyDecl">The type declaration to add the attribues to.</param>
/// <param name="additionalAttributes">Additional attributes to emit</param>
public void EmitPropertyAttributes(PropertyEmitter emitter,
CodeMemberProperty propertyDecl,
List <CodeAttributeDeclaration> additionalAttributes)
{
if (MetadataUtil.IsPrimitiveType(emitter.Item.TypeUsage.EdmType) || MetadataUtil.IsEnumerationType(emitter.Item.TypeUsage.EdmType))
{
CodeAttributeDeclaration scalarPropertyAttribute = EmitSimpleAttribute(FQAdoFrameworkDataClassesName("EdmScalarPropertyAttribute"));
if (emitter.IsKeyProperty)
{
Debug.Assert(emitter.Item.Nullable == false, "An EntityKeyProperty cannot be nullable.");
AttributeEmitter.AddNamedAttributeArguments(scalarPropertyAttribute, "EntityKeyProperty", true);
}
if (!emitter.Item.Nullable)
{
AttributeEmitter.AddNamedAttributeArguments(scalarPropertyAttribute, "IsNullable", false);
}
propertyDecl.CustomAttributes.Add(scalarPropertyAttribute);
}
else //Complex property
{
Debug.Assert(MetadataUtil.IsComplexType(emitter.Item.TypeUsage.EdmType) ||
(MetadataUtil.IsCollectionType(emitter.Item.TypeUsage.EdmType)),
"not a complex type or a collection type");
CodeAttributeDeclaration attribute = EmitSimpleAttribute(FQAdoFrameworkDataClassesName("EdmComplexPropertyAttribute"));
propertyDecl.CustomAttributes.Add(attribute);
// Have CodeDOM serialization set the properties on the ComplexObject, not the ComplexObject instance.
attribute = EmitSimpleAttribute("System.ComponentModel.DesignerSerializationVisibility");
AttributeEmitter.AddAttributeArguments(attribute,
new object[] { new CodePropertyReferenceExpression(
new CodeTypeReferenceExpression(TypeReference.ForType(
typeof(System.ComponentModel.DesignerSerializationVisibility))), "Content") });
propertyDecl.CustomAttributes.Add(attribute);
if (!MetadataUtil.IsCollectionType(emitter.Item.TypeUsage.EdmType))
{
// Non-collection complex properties also need additional serialization attributes to force them to be explicitly serialized if they are null
// If this is omitted, null complex properties do not get explicitly set to null during deserialization, which causes
// them to be lazily constructed once the property is accessed after the entity is deserialized. If the property is
// actually null during serialiation, that means the user has explicitly set it, so we need to maintain that during serialization.
// This doesn't apply to collection types because they aren't lazily constructed and don't need this extra information.
attribute = EmitSimpleAttribute("System.Xml.Serialization.XmlElement");
AttributeEmitter.AddNamedAttributeArguments(attribute, "IsNullable", true);
propertyDecl.CustomAttributes.Add(attribute);
attribute = EmitSimpleAttribute("System.Xml.Serialization.SoapElement");
AttributeEmitter.AddNamedAttributeArguments(attribute, "IsNullable", true);
propertyDecl.CustomAttributes.Add(attribute);
}
}
// serialization attribute
AddDataMemberAttribute(propertyDecl);
if (additionalAttributes != null && additionalAttributes.Count > 0)
{
try
{
propertyDecl.CustomAttributes.AddRange(additionalAttributes.ToArray());
}
catch (ArgumentNullException e)
{
emitter.Generator.AddError(Strings.InvalidAttributeSuppliedForProperty(emitter.Item.Name),
ModelBuilderErrorCode.InvalidAttributeSuppliedForProperty,
EdmSchemaErrorSeverity.Error,
e);
}
}
EmitGeneratedCodeAttribute(propertyDecl);
}
