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Extensions/XDatabaseDescriptorExtensions.cs

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+using xCommons.Extensions;
+using xDataService.Models;
+
+namespace xDataService.Extensions
+{
+    public static class XDatabaseDescriptorExtensions
+    {
+        /// <summary>
+        /// Validate a Database Descriptor ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool IsValid(this XDatabaseDescriptor source)
+        {
+            //
+            var result =
+                !source.IsNull() &&
+                !source.Name.IsNullOrEmpty();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has EF Core Context or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasContext(this XDatabaseDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.Context.IsNull();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has Repositories or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasRepositories(this XDatabaseDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.Repositories.IsNull() &&
+                source.Repositories.HasChild();
+
+            //
+            return result;
+        }
+    }
+}

Extensions/XRepositoryDescriptorExtensions.cs

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+using xCommons.Extensions;
+using xDataService.Models;
+
+namespace xDataService.Extensions
+{
+    public static class XRepositoryDescriptorExtensions
+    {
+        /// <summary>
+        /// Validate a Descriptor ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool IsValid(this XRepositoryDescriptor source)
+        {
+            var result =
+                !source.IsNull() &&
+                !source.Key.IsNull() &&
+                !source.Entity.IsNull();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has Events Service or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasEvents(this XRepositoryDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.EventsService.IsNull() &&
+                !source.EventsImplementation.IsNull();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has EF Core Context or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasContext(this XRepositoryDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.Context.IsNull();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has GraphQL Support or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasGraphSupport(this XRepositoryDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.GraphType.IsNull() &&
+                !source.GraphSchema.IsNull() &&
+                !source.GraphTypeKey.IsNull() &&
+                !source.GraphQueryService.IsNull() &&
+                !source.GraphTypeHelperService.IsNull() &&
+                !source.GraphQueryImplementation.IsNull() &&
+                !source.GraphTypeHelperImplementation.IsNull();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has Key Generator Service or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasKeyGenerator(this XRepositoryDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.KeyGeneratorService.IsNull() &&
+                !source.KeyGeneratorImplementation.IsNull();
+
+            //
+            return result;
+        }
+
+        /// <summary>
+        /// Check a Descriptor Has Repository Service or not ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool HasRepository(this XRepositoryDescriptor source)
+        {
+            //
+            var result =
+                source.IsValid() &&
+                !source.RepositoryService.IsNull() &&
+                !source.RepositoryImplementation.IsNull();
+
+            //
+            return result;
+        }
+    }
+}