feat: add scoped schema factory

src/VirtoCommerce.Xapi.Core/Infrastructure/SchemaFactory.cs

@@ -65,7 +65,7 @@ public ISchema GetSchema()
             var schema = CreateSchema(_services, _schemaFilter);
 
             var schemaBuilders = GetSchemaBuilders();
-            foreach (var builder in _schemaBuilders)
+            foreach (var builder in schemaBuilders)
             {
                 builder.Build(schema);
             }

src/VirtoCommerce.Xapi.Core/Infrastructure/ScopedSchemaFactory.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using GraphQL.Introspection;
+
+namespace VirtoCommerce.Xapi.Core.Infrastructure
+{
+    public class ScopedSchemaFactory<TMarker> : SchemaFactory
+    {
+        public ScopedSchemaFactory(
+            IEnumerable<ISchemaBuilder> schemaBuilders,
+            IServiceProvider services,
+            ISchemaFilter schemaFilter)
+            : base(schemaBuilders, services, schemaFilter)
+        {
+        }
+
+        protected override List<ISchemaBuilder> GetSchemaBuilders()
+        {
+            var schemaBuilders = base.GetSchemaBuilders();
+
+            // find all builders with inside this project
+            var currentAssembly = typeof(TMarker).Assembly;
+
+            var subSchemaBuilders = schemaBuilders
+                .Where(p => p.GetType().Assembly == currentAssembly)
+                .ToList();
+
+            return subSchemaBuilders;
+        }
+    }
+}