本文介绍了一个用于Java的Hibernate校验框架的实现细节，包括如何创建验证器实例及进行对象约束验证的方法。该框架提供了静态方法来验证对象是否符合预定义的约束条件，并在验证失败时抛出异常。
public final class HibernateValidators {
private static final Validator VALIDATOR;
private HibernateValidators() {
}
static {
ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
VALIDATOR = factory.getValidator();
}
public static <T> Set<ConstraintViolation<T>> validate(T object, Class<?>... groups) {
return VALIDATOR.validate(object, groups);
}
/**
* @throws IllegalArgumentException 当校验有错误的时候抛出异常
*/
public static <T> void throwsIfInvalid(T object, Class<?>... groups) {
final Set<ConstraintViolation<T>> constraintViolations = validate(object, groups);
if (!constraintViolations.isEmpty()) {
final ImmutableMap.Builder<String, String> errorBuilder = ImmutableMap.builder();
for (ConstraintViolation<T> violation : constraintViolations) {
errorBuilder.put(violation.getPropertyPath().toString(), violation.getMessage());
}
throw new IllegalArgumentException(errorBuilder.build().toString());
}
}
}
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