Marking value objects as "owned" explicitly

src/ApplicationCore/ApplicationCore.csproj

@@ -7,6 +7,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="Ardalis.GuardClauses" Version="1.2.9" />
+		<PackageReference Include="Microsoft.EntityFrameworkCore.Abstractions" Version="2.2.6" />
 		<PackageReference Include="System.Security.Claims" Version="4.3.0" />
 	</ItemGroup>
 

src/ApplicationCore/Entities/OrderAggregate/Address.cs

@@ -1,7 +1,9 @@
-using System;
+using Microsoft.EntityFrameworkCore;
+using System;
 
 namespace Microsoft.eShopWeb.ApplicationCore.Entities.OrderAggregate
 {
+    [Owned]
     public class Address // ValueObject
     {
         public String Street { get; private set; }

src/ApplicationCore/Entities/OrderAggregate/CatalogItemOrdered.cs

@@ -1,4 +1,5 @@
 using Ardalis.GuardClauses;
+using Microsoft.EntityFrameworkCore;
 
 namespace Microsoft.eShopWeb.ApplicationCore.Entities.OrderAggregate
 {
@@ -6,6 +7,7 @@ namespace Microsoft.eShopWeb.ApplicationCore.Entities.OrderAggregate
     /// Represents a snapshot of the item that was ordered. If catalog item details change, details of
     /// the item that was part of a completed order should not change.
     /// </summary>
+    [Owned]
     public class CatalogItemOrdered // ValueObject
     {
         public CatalogItemOrdered(int catalogItemId, string productName, string pictureUri)