Overview

This section documents the persistence layer design: bitemporal tables, ORM mapping conventions, the Universe abstraction, and parent-child relationship patterns.

Documents

Document	Contents
Bitemporal Persistence	Dual-timeline persistence: effective time and recorded time
Table Mappings	Exposed ORM mapping guide: payloads, records, composite components
Universe Design	AbstractScopedUniverse, validation layering, step-by-step guide
Parent-Child Persistence	Ordered and unordered child collection patterns
Cross-Child / Cross-Universe Queries	Tenant-scoped queries over a child across many parents, without N+1 parent reads
Exposed Patterns	Exposed ORM patterns, Flyway migrations, column naming conventions