JSR 303:如何验证带注释的对象的集合? [英] JSR 303: How to Validate a Collection of annotated objects?

问题描述

是否有可能在JSR 303-Jave Bean验证中验证对象的集合，而该集合本身没有任何注释，但包含在其中的元素呢?

Is it possible to validate a collection of objects in JSR 303 - Jave Bean Validation where the collection itself does not have any annotations but the elements contained within do?

例如，由于第二个人的名字为空，是否有可能导致约束冲突:

For example, is it possible for this to result in a constraint violation due to a null name on the second person:

List<Person> people = new ArrayList<Person>();
people.add(new Person("dave"));
people.add(new Person(null));

Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<List<Person>>> validation = validator.validate(people);

推荐答案

是的，只需将@Valid添加到集合中即可.

Yes, just add @Valid to the collection.

这里是一个示例 Hibernate验证程序参考.

Here is an example from the Hibernate Validator Reference.

public class Car {
  @NotNull
  @Valid
  private List<Person> passengers = new ArrayList<Person>();
}

这是标准的JSR-303行为.请参见规范的第3.1.3节.

This is standard JSR-303 behavior. See Section 3.1.3 of the spec.

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