Bean Validation 2 0

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" summary

Bean Validation 2.0 (JSR 380) targets Java 8 only and adds repeatable annotations and Java 8 type-use to enable per-element constraints on collections, maps and Optionals; it adds java.time support with configurable Clock provider and new past/present semantics. The reference implementation is Hibernate Validator alpha1, already runnable in WildFly; JAX‑RS integration returns 400 with violation details. New features include parameter name support, built‑in constraints like notEmpty/notBlank/@Email, a programmatic API using lambdas, and extensible value extractors (example: Guava Table).

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" chapters (11)

1. 0:00Start
2. 1:00Emmanuel Bernard
3. 2:11What is Bean Validation
4. 18:45Bean Validation 2.0
5. 19:05Repeatable annotations
6. 22:19Cascading collections
7. 25:03Custom containers
8. 30:52java.time new API
9. 35:55Current status
10. 36:50Everything is open (source)
11. 37:34Hibernate Validator specifics

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