How to handle multi layer validation

[aslakknutsen]

Validation on JPA level Validation on REST level ?

JPA conference.duration.start|end == start|end in REST

Convert Representation to JPA then validate, JPA returns 'duration' should not be null. Representation only knows about start/end (which maps to a Duration).

[aslakknutsen]

Skip Validation in the JPA level, keep it pure Java via IllegalArguments

Keep validation in REST Representation where we control how the JPA objects are updated/created