零框架多租户设计方案

samples/MultiTenancySample/MultiTenancySample.ServiceDefaults/CurrentTenant.cs

@@ -0,0 +1,28 @@
+namespace MultiTenancySample.ServiceDefaults
+{
+    public class CurrentTenant : ICurrentTenant
+    {
+        public string? TenantId { get; private set; }
+
+        public IDisposable SetTenant(string? tenantId)
+        {
+            string? parentTenantId = TenantId;
+
+            TenantId = tenantId;
+
+            return new DisposeAction(() =>
+            {
+                TenantId = parentTenantId;
+            });
+        }
+
+        public class DisposeAction(Action action) : IDisposable
+        {
+            void IDisposable.Dispose()
+            {
+                action();
+                GC.SuppressFinalize(this);
+            }
+        }
+    }
+}