furniture-dal/docs/dal/persistence-cache-policy.md

DAL Persistence and Cache Policy

Responsibilities

• Repositories coordinate provider calls for aggregate persistence.
• Cache invalidation policy is owned by DAL.
• Service layer does not implement persistence or cache invalidation details.
• Cache invalidation boundaries are expressed through DAL contract interfaces.

Policy

• Persistence writes must define cache invalidation triggers.
• Cache keys and invalidation behavior are centralized in DAL policy definitions.
• This stage defines contracts, ports, and adapters only; no persistence implementation is introduced.