samdeepthink

Jun 4, 2026 · Backend Development

Design and Implementation of an Extension‑Point Mechanism for SaaS Multi‑Tenant Business Differentiation

The article explains how an Extension‑Point mechanism can cleanly isolate tenant‑specific logic in SaaS systems by defining variation interfaces, providing per‑tenant implementations annotated with @Extension, and routing calls at runtime using hierarchical bizCode matching, avoiding tangled if‑else or inheritance explosion.