807 B
807 B
ddd-validation
Status
to be discussed
Context
We want express validity on domain objects. Clear described validity helps on
- avoid many redundant and unnecessary (null-)checks spread around in the code
- collects all validity constraints to one defined place
Principles affected
- Check the domain borders
- Do not tie validation to object creation / serialization
- propagate validation through aggregates
see also:
- [Fowler] Do not use exceptions for validation: https://martinfowler.com/articles/replaceThrowWithNotification.html
- [Fowler] Contextual Validation: https://martinfowler.com/bliki/ContextualValidation.html
- [Vladimir Khorikov] Some ideas for validation in DDD: https://enterprisecraftsmanship.com/posts/validation-and-ddd/
